Geochronology and Glaciation of the Neoproterozoic Diamictite in Aksu Area, Northwestern Margin of the Tarim Block

doi:10.19657/j.geoscience.1000-8527.2021.067

Abstract

Abstract:

Age correlation of the Neoproterozoic glaciation events in the Tarim Block remains controversial, and obtaining reliable deposition time for the Neoproterozoic diamictite is crucial.Two sets of the Neoproterozoic diamictite were developed in Aksu area along the northwestern margin of the Tarim Block. Petrologic and whole-rock geochemical analyses and radiometric dating were conducted to define the sedimentary rock assemblages,deposition time, and paleoclimatic weathering conditions. The chemical index of alteration (CIA) indicates that the Qiaoenbrak and Yuermeinak Formations represent two distinct glaciation episodes, and two secondary glaciation events exist in the Qiaoenbrak glaciation.Detrital zircon U-Pb dating of the glacial deposits and their adjacent beds indicate that the Qiaoenbrak glaciation in Aksu started along the northwestern margin of the TarimBlock after (719±10) Ma, whilst the Yuermeinak glaciation did not start before (685±11) Ma, and its cessation timing can be constrained by the top boundary age of the Nanhua System (635 Ma) or the U-Pb age of the overlying Sinian Sugetbrak Formation basalt (615±5 Ma).Comprehensive analyses of isotope geochronology, geochemistry, and sedimentology indicate that the Qiaoenbrak glaciation (Aksu area) corresponded to the Altungol glaciation (Quruqtagh area), the Jiangkou glaciation (South China), and the Sturtian glaciation (global). Meanwhile, the Yuermeinak glaciation (Aksu area) corresponded to the Tereekan glaciation (Quruqtagh area), the Nantuo glaciation (South China), and the Marinoan glaciation (global). Glaciation, isotopic geochronology, and geochemistry can provide a basis for the division and comparison of the Neoproterozoic sequences in the Tarim Block.

Key words: Tarim Block, Neoproterozoic, diamictite, detrital zircon, chemical index of alteration

CLC Number:

LI Wangpeng, WANG Yi, LI Huili, ZHANG Zhongpei, LIU Shaofeng, YANG Weili, CAI Xiyao, NIE Haikuan, QIAN Tao, LI Xiaojian. Geochronology and Glaciation of the Neoproterozoic Diamictite in Aksu Area, Northwestern Margin of the Tarim Block[J]. Geoscience, 2022, 36(01): 27-47.

Figures/Tables 11

References 46

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测试点	含量/10^-6		Th/U	同位素比值						年龄/Ma							谐和度/%
测试点	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ		谐和度/%
S17Y308-1	37	48	1.29	0.069 4	0.002 2	1.381 8	0.042 7	0.144 9	0.002 1	922.2	60.2	881.2	18.2	872.2	11.9		98
S17Y308-2	112	142	1.27	0.075 9	0.002 0	1.607 8	0.038 6	0.153 3	0.002 1	1 094.4	53.7	973.3	15.0	919.4	11.9		94
S17Y308-3	202	299	1.48	0.067 3	0.001 3	1.389 0	0.030 0	0.148 9	0.002 1	850.0	39.7	884.3	12.7	894.7	11.8		98
S17Y308-5	98	149	1.52	0.069 1	0.001 9	1.330 2	0.037 7	0.139 4	0.002 4	901.9	55.6	859.0	16.4	841.5	13.3		97
S17Y308-6	114	167	1.46	0.067 3	0.001 8	1.305 4	0.036 6	0.140 0	0.002 0	855.6	54.5	848.1	16.1	844.4	11.3		99
S17Y308-7	125	101	0.81	0.064 4	0.001 9	1.255 1	0.038 4	0.141 4	0.002 3	755.3	62.2	825.7	17.3	852.3	12.8		96
S17Y308-8	193	447	2.31	0.071 4	0.001 5	1.391 4	0.029 4	0.141 1	0.001 7	970.1	42.6	885.3	12.5	850.7	9.7		96
S17Y308-9	120	181	1.51	0.065 7	0.001 6	1.274 7	0.032 6	0.140 8	0.002 0	798.2	51.8	834.5	14.6	849.2	11.3		98
S17Y308-10	163	336	2.07	0.069 9	0.001 4	1.466 2	0.034 5	0.151 6	0.001 8	924.1	40.7	916.6	14.2	910.0	10.0		99
S17Y308-11	62	99	1.58	0.068 6	0.001 8	1.417 5	0.039 3	0.150 3	0.002 0	887.0	53.7	896.3	16.5	902.6	11.2		99
S17Y308-12	56	69	1.24	0.068 2	0.002 2	1.393 6	0.051 0	0.148 1	0.002 3	873.8	66.7	886.2	21.6	890.1	12.8		99
S17Y308-13	86	135	1.57	0.066 0	0.001 8	1.229 7	0.034 8	0.135 0	0.002 4	807.1	56.3	814.2	15.8	816.4	13.5		99
S17Y308-14	36	63	1.75	0.064 6	0.002 0	1.332 7	0.047 0	0.149 2	0.002 3	761.1	69.4	860.0	20.4	896.4	12.7		95
S17Y308-17	86	98	1.15	0.070 5	0.002 0	1.325 7	0.037 5	0.136 6	0.002 1	942.6	58.2	857.0	16.4	825.4	11.8		96
S17Y308-18	27	35	1.28	0.071 2	0.002 5	1.383 9	0.046 9	0.142 5	0.002 4	962.7	74.1	882.1	20.0	858.5	13.3		97
S17Y308-19	117	111	0.95	0.067 9	0.001 5	1.372 3	0.031 0	0.146 2	0.001 8	864.8	44.4	877.1	13.3	879.9	10.0		99
S17Y308-20	60	89	1.49	0.071 1	0.002 1	1.396 8	0.041 2	0.142 4	0.002 0	961.1	60.0	887.6	17.4	858.2	11.3		96
S17Y308-21	43	66	1.53	0.070 4	0.002 7	1.384 1	0.053 0	0.143 1	0.002 4	938.9	77.8	882.2	22.6	862.2	13.5		97
S17Y308-22	32	43	1.35	0.073 4	0.003 9	1.449 3	0.084 2	0.143 9	0.003 3	1 025.6	107.4	909.6	34.9	866.8	18.4		95
S17Y308-24	84	94	1.12	0.068 8	0.002 3	1.400 1	0.051 4	0.148 5	0.003 1	892.3	69.6	889.0	21.8	892.8	17.2		99
S17Y308-25	208	363	1.75	0.073 6	0.001 5	1.497 3	0.028 1	0.147 4	0.001 5	1 031.5	40.7	929.3	11.4	886.1	8.3		95
S17Y308-26	69	77	1.12	0.068 4	0.002 3	1.311 1	0.040 5	0.139 8	0.002 0	881.2	68.5	850.6	17.8	843.3	11.2		99
S17Y308-28	177	240	1.36	0.069 6	0.001 5	1.326 4	0.029 5	0.137 8	0.001 7	916.7	44.4	857.3	12.9	832.3	9.5		97
S17Y308-29	143	290	2.02	0.071 0	0.001 6	1.453 3	0.033 0	0.147 9	0.001 7	958.3	41.7	911.3	13.7	889.4	9.7		97
S17Y308-32	76	83	1.10	0.071 2	0.002 5	1.415 1	0.047 8	0.143 8	0.002 1	964.8	67.6	895.3	20.1	866.4	11.7		96
S17Y308-33	100	143	1.43	0.069 0	0.001 6	1.435 8	0.035 0	0.149 9	0.001 9	898.2	47.1	904.0	14.6	900.5	10.5		99
S17Y308-34	127	154	1.21	0.065 4	0.002 0	1.321 3	0.045 5	0.145 6	0.002 8	788.6	63.7	855.1	19.9	876.4	16.0		97
S17Y308-35	67	70	1.05	0.069 1	0.002 1	1.397 3	0.045 3	0.145 3	0.002 2	901.9	64.0	887.8	19.2	874.6	12.4		98
S17Y308-36	98	105	1.08	0.072 3	0.001 8	1.539 9	0.038 6	0.153 5	0.002 0	994.4	50.0	946.4	15.4	920.6	11.1		97
S17Y308-38	219	184	0.84	0.072 8	0.001 8	1.226 6	0.028 9	0.121 1	0.001 6	1 009.3	46.1	812.8	13.2	737.1	9.3		90
S17Y308-39	62	108	1.74	0.071 0	0.002 3	1.603 3	0.047 3	0.163 5	0.002 6	966.7	61.0	971.5	18.5	976.4	14.3		99
S17Y308-40	42	48	1.15	0.069 6	0.002 5	1.423 0	0.050 6	0.147 6	0.002 4	916.7	74.1	898.6	21.2	887.5	13.2		98
S17Y308-41	75	61	0.81	0.068 8	0.003 7	1.401 1	0.074 6	0.148 4	0.003 2	892.3	105.4	889.4	31.6	891.9	17.9		99
S17Y308-42	50	109	2.19	0.070 5	0.003 1	1.421 1	0.057 1	0.147 7	0.002 9	944.1	91.2	897.8	23.9	887.9	16.4		98
S17Y308-43	80	106	1.31	0.068 8	0.002 7	1.361 0	0.053 5	0.143 3	0.002 8	894.4	82.3	872.3	23.0	863.2	15.6		98
S17Y308-45	314	384	1.22	0.072 6	0.002 1	1.465 8	0.038 2	0.145 6	0.001 9	1 011.1	58.2	916.4	15.7	876.3	10.9		95
S17Y308-47	82	125	1.52	0.064 2	0.003 0	1.275 6	0.054 5	0.144 7	0.003 3	750.0	100.0	834.9	24.3	871.1	18.5		95
S17Y308-48	38	74	1.97	0.067 7	0.003 0	1.466 6	0.065 0	0.156 1	0.003 1	861.1	91.8	916.7	26.8	935.0	17.2		98
S17Y308-49	111	165	1.49	0.070 6	0.002 8	1.454 7	0.053 5	0.149 5	0.002 8	946.3	82.3	911.8	22.1	898.1	15.4		98
S17Y308-51	79	99	1.26	0.074 6	0.004 7	1.544 9	0.083 2	0.155 7	0.004 1	1 057.4	132.4	948.5	33.2	932.8	22.8		98
S17Y308-52	165	227	1.37	0.071 6	0.003 4	1.412 3	0.060 4	0.144 4	0.003 2	975.9	97.1	894.1	25.4	869.3	17.9		97
S17Y308-54	171	207	1.21	0.068 1	0.003 3	1.360 0	0.062 5	0.144 9	0.003 0	872.2	99.2	871.9	26.9	872.6	17.0		99
测试点	含量/10^-6		Th/U	同位素比值						年龄/Ma							谐和度/%
测试点	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U		±1σ	谐和度/%
S17Y308-55	31	43	1.38	0.082 8	0.006 9	1.709 7	0.138 9	0.154 6	0.005 0	1 264.8	163.0	1 012.2	52.1	926.8		27.7	91
S17Y308-58	179	341	1.90	0.075 2	0.002 9	1.420 3	0.050 6	0.138 8	0.002 9	1 073.2	77.8	897.5	21.2	837.8		16.6	93
S17Y308-59	46	92	1.99	0.081 1	0.006 1	1.415 5	0.083 8	0.134 6	0.003 5	1 233.3	115.7	895.5	35.3	814.2		19.8	90
S17Y308-60	66	314	4.75	0.062 8	0.002 7	1.054 5	0.048 4	0.121 0	0.003 2	701.9	92.6	731.1	23.9	736.1		18.3	99
S17Y308-61	53	114	2.14	0.065 8	0.004 0	1.176 2	0.063 0	0.134 3	0.003 7	1 200.0	95.4	789.5	29.4	812.3		21.2	97
S17Y308-65	312	342	1.10	0.069 4	0.002 3	1.296 0	0.042 0	0.135 4	0.002 4	922.2	73.2	843.9	18.6	818.6		13.4	96
S17Y308-66	58	86	1.49	0.069 9	0.003 3	1.518 6	0.072 8	0.159 2	0.003 3	925.6	93.5	937.9	29.3	952.4		18.1	98
S17Y308-67	64	77	1.21	0.075 2	0.003 7	1.407 0	0.065 2	0.139 9	0.003 3	1 075.9	96.8	891.9	27.5	844.3		18.5	94
S17Y308-68	52	79	1.51	0.069 1	0.003 2	1.303 8	0.064 7	0.137 2	0.003 0	902.8	95.2	847.4	28.5	828.9		17.0	97
S17Y308-69	140	131	0.94	0.067 8	0.002 6	1.372 7	0.046 7	0.149 0	0.002 7	864.8	78.5	877.3	20.0	895.1		15.3	97
S17Y308-70	119	235	1.97	0.065 7	0.002 1	1.435 6	0.043 2	0.159 3	0.002 5	798.2	68.5	903.9	18.0	952.8		13.9	94
S17Y308-71	74	73	0.99	0.070 4	0.003 8	1.381 3	0.067 5	0.145 6	0.003 0	938.9	113.9	881.0	28.8	876.5		16.9	99
S17Y308-72	112	167	1.49	0.068 7	0.002 5	1.351 1	0.044 7	0.144 5	0.002 3	900.0	75.9	868.0	19.3	870.1		13.2	99
S17Y308-73	39	69	1.77	0.065 1	0.003 4	1.260 1	0.064 3	0.142 5	0.003 1	788.9	111.1	828.0	28.9	858.9		17.6	96
S17Y308-74	169	166	0.98	0.068 4	0.002 0	1.391 2	0.041 0	0.147 5	0.002 2	881.2	61.1	885.2	17.4	887.0		12.2	99
S17Y308-75	39	64	1.63	0.068 2	0.003 2	1.283 9	0.056 9	0.138 9	0.002 6	875.9	96.3	838.6	25.3	838.2		14.8	99
S17Y308-76	32	64	2.00	0.076 0	0.003 4	1.437 1	0.058 4	0.140 5	0.002 5	1 094.4	90.3	904.5	24.3	847.7		14.2	93
S17Y308-77	53	65	1.23	0.065 9	0.002 9	1.301 3	0.058 4	0.145 5	0.003 0	1 200.0	93.4	846.3	25.8	875.6		16.7	96
S17Y308-78	88	224	2.55	0.071 2	0.001 9	1.457 7	0.044 3	0.147 2	0.002 3	962.7	55.6	913.1	18.3	885.0		12.7	96
S17Y308-79	45	56	1.24	0.073 7	0.003 7	1.360 7	0.063 1	0.137 0	0.002 9	1 035.2	101.1	872.2	27.2	827.8		16.2	94
S17Y308-80	153	292	1.91	0.070 5	0.001 6	1.468 2	0.037 6	0.150 1	0.002 3	942.6	48.1	917.4	15.5	901.5		12.8	98
S17Y308-81	141	162	1.15	0.076 1	0.002 3	1.704 3	0.054 4	0.161 0	0.002 5	1 098.2	65.3	1 010.1	20.4	962.1		14.0	95
S17Y308-82	39	62	1.57	0.065 0	0.002 7	1.095 1	0.043 5	0.121 3	0.002 4	775.9	87.0	751.0	21.1	738.3		14.0	98
S17Y308-83	40	65	1.61	0.070 5	0.002 9	1.359 7	0.054 2	0.141 5	0.002 8	942.6	88.0	871.7	23.3	853.1		15.9	97
S17Y308-84	49	63	1.29	0.069 9	0.002 6	1.364 3	0.049 5	0.142 0	0.002 8	924.1	71.3	873.7	21.3	856.0		15.9	97
S17Y308-85	23	36	1.57	0.070 2	0.003 4	1.420 6	0.068 9	0.150 1	0.003 9	1 000.0	98.2	897.6	28.9	901.5		21.7	99
S17Y308-86	50	77	1.55	0.066 3	0.002 4	1.340 1	0.051 0	0.145 9	0.002 5	816.7	77.8	863.3	22.1	877.8		13.8	98
S17Y308-87	162	210	1.30	0.069 0	0.002 1	1.320 5	0.040 3	0.137 6	0.002 4	899.7	62.2	854.8	17.6	830.9		13.6	97
S17Y308-88	49	60	1.22	0.065 5	0.002 7	1.340 6	0.053 7	0.148 9	0.002 4	790.7	85.2	863.5	23.3	895.0		13.5	96
S17Y308-89	200	256	1.28	0.068 2	0.001 8	1.325 0	0.034 5	0.140 1	0.001 9	875.9	56.6	856.7	15.1	845.0		11.0	98
S17Y308-92	170	281	1.65	0.069 7	0.001 9	1.457 5	0.040 3	0.150 1	0.002 2	920.4	56.6	913.0	16.7	901.4		12.5	98
S17Y308-93	73	76	1.04	0.066 0	0.002 5	1.223 3	0.042 3	0.135 8	0.002 6	805.6	79.6	811.3	19.3	821.0		15.0	98
S17Y308-94	268	236	0.88	0.063 0	0.001 6	1.245 2	0.031 8	0.142 3	0.002 2	705.6	53.7	821.2	14.4	857.8		12.6	95
S17Y308-95	61	85	1.40	0.067 6	0.002 5	1.322 4	0.047 9	0.141 6	0.002 4	855.2	77.8	855.6	21.0	853.5		13.4	99
S17Y308-97	53	109	2.06	0.069 0	0.002 1	1.370 7	0.039 5	0.143 4	0.002 0	899.7	62.2	876.5	16.9	864.0		11.3	98
S17Y308-98	139	163	1.17	0.070 3	0.002 3	1.209 5	0.038 5	0.123 7	0.002 0	936.1	66.7	804.9	17.7	751.6		11.5	93
S17Y308-99	121	175	1.44	0.067 0	0.001 9	1.380 9	0.039 5	0.148 4	0.002 1	835.2	59.7	880.8	16.9	892.0		12.0	98
S17Y308-100	92	112	1.22	0.069 1	0.002 6	1.311 8	0.045 7	0.137 4	0.002 2	901.9	71.3	850.9	20.1	830.0		12.6	97
S17Y308-101	460	459	1.00	0.075 3	0.002 3	1.255 6	0.034 2	0.119 1	0.002 0	1 077.5	60.0	825.9	15.4	725.3		11.6	87
S17Y308-102	201	186	0.92	0.067 5	0.002 4	1.148 7	0.040 0	0.121 5	0.001 9	853.7	68.4	776.6	18.9	739.2		11.2	95
S17Y308-103	319	499	1.56	0.066 5	0.001 9	1.104 9	0.033 2	0.118 0	0.001 8	821.9	59.3	755.7	16.0	719.1		10.3	95
S17Y308-104	226	295	1.31	0.072 1	0.004 9	1.210 8	0.039 7	0.122 0	0.002 1	990.7	140.7	805.6	18.2	742.1		12.3	91
S17Y308-105	206	267	1.30	0.069 8	0.002 8	1.163 5	0.052 1	0.118 7	0.002 5	924.1	81.9	783.6	24.4	723.3		14.4	91

测试点	含量/10^-6		Th/U	同位素比值						年龄/Ma							谐和度/%
测试点	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ		谐和度/%
S17Y308-1	37	48	1.29	0.069 4	0.002 2	1.381 8	0.042 7	0.144 9	0.002 1	922.2	60.2	881.2	18.2	872.2	11.9		98
S17Y308-2	112	142	1.27	0.075 9	0.002 0	1.607 8	0.038 6	0.153 3	0.002 1	1 094.4	53.7	973.3	15.0	919.4	11.9		94
S17Y308-3	202	299	1.48	0.067 3	0.001 3	1.389 0	0.030 0	0.148 9	0.002 1	850.0	39.7	884.3	12.7	894.7	11.8		98
S17Y308-5	98	149	1.52	0.069 1	0.001 9	1.330 2	0.037 7	0.139 4	0.002 4	901.9	55.6	859.0	16.4	841.5	13.3		97
S17Y308-6	114	167	1.46	0.067 3	0.001 8	1.305 4	0.036 6	0.140 0	0.002 0	855.6	54.5	848.1	16.1	844.4	11.3		99
S17Y308-7	125	101	0.81	0.064 4	0.001 9	1.255 1	0.038 4	0.141 4	0.002 3	755.3	62.2	825.7	17.3	852.3	12.8		96
S17Y308-8	193	447	2.31	0.071 4	0.001 5	1.391 4	0.029 4	0.141 1	0.001 7	970.1	42.6	885.3	12.5	850.7	9.7		96
S17Y308-9	120	181	1.51	0.065 7	0.001 6	1.274 7	0.032 6	0.140 8	0.002 0	798.2	51.8	834.5	14.6	849.2	11.3		98
S17Y308-10	163	336	2.07	0.069 9	0.001 4	1.466 2	0.034 5	0.151 6	0.001 8	924.1	40.7	916.6	14.2	910.0	10.0		99
S17Y308-11	62	99	1.58	0.068 6	0.001 8	1.417 5	0.039 3	0.150 3	0.002 0	887.0	53.7	896.3	16.5	902.6	11.2		99
S17Y308-12	56	69	1.24	0.068 2	0.002 2	1.393 6	0.051 0	0.148 1	0.002 3	873.8	66.7	886.2	21.6	890.1	12.8		99
S17Y308-13	86	135	1.57	0.066 0	0.001 8	1.229 7	0.034 8	0.135 0	0.002 4	807.1	56.3	814.2	15.8	816.4	13.5		99
S17Y308-14	36	63	1.75	0.064 6	0.002 0	1.332 7	0.047 0	0.149 2	0.002 3	761.1	69.4	860.0	20.4	896.4	12.7		95
S17Y308-17	86	98	1.15	0.070 5	0.002 0	1.325 7	0.037 5	0.136 6	0.002 1	942.6	58.2	857.0	16.4	825.4	11.8		96
S17Y308-18	27	35	1.28	0.071 2	0.002 5	1.383 9	0.046 9	0.142 5	0.002 4	962.7	74.1	882.1	20.0	858.5	13.3		97
S17Y308-19	117	111	0.95	0.067 9	0.001 5	1.372 3	0.031 0	0.146 2	0.001 8	864.8	44.4	877.1	13.3	879.9	10.0		99
S17Y308-20	60	89	1.49	0.071 1	0.002 1	1.396 8	0.041 2	0.142 4	0.002 0	961.1	60.0	887.6	17.4	858.2	11.3		96
S17Y308-21	43	66	1.53	0.070 4	0.002 7	1.384 1	0.053 0	0.143 1	0.002 4	938.9	77.8	882.2	22.6	862.2	13.5		97
S17Y308-22	32	43	1.35	0.073 4	0.003 9	1.449 3	0.084 2	0.143 9	0.003 3	1 025.6	107.4	909.6	34.9	866.8	18.4		95
S17Y308-24	84	94	1.12	0.068 8	0.002 3	1.400 1	0.051 4	0.148 5	0.003 1	892.3	69.6	889.0	21.8	892.8	17.2		99
S17Y308-25	208	363	1.75	0.073 6	0.001 5	1.497 3	0.028 1	0.147 4	0.001 5	1 031.5	40.7	929.3	11.4	886.1	8.3		95
S17Y308-26	69	77	1.12	0.068 4	0.002 3	1.311 1	0.040 5	0.139 8	0.002 0	881.2	68.5	850.6	17.8	843.3	11.2		99
S17Y308-28	177	240	1.36	0.069 6	0.001 5	1.326 4	0.029 5	0.137 8	0.001 7	916.7	44.4	857.3	12.9	832.3	9.5		97
S17Y308-29	143	290	2.02	0.071 0	0.001 6	1.453 3	0.033 0	0.147 9	0.001 7	958.3	41.7	911.3	13.7	889.4	9.7		97
S17Y308-32	76	83	1.10	0.071 2	0.002 5	1.415 1	0.047 8	0.143 8	0.002 1	964.8	67.6	895.3	20.1	866.4	11.7		96
S17Y308-33	100	143	1.43	0.069 0	0.001 6	1.435 8	0.035 0	0.149 9	0.001 9	898.2	47.1	904.0	14.6	900.5	10.5		99
S17Y308-34	127	154	1.21	0.065 4	0.002 0	1.321 3	0.045 5	0.145 6	0.002 8	788.6	63.7	855.1	19.9	876.4	16.0		97
S17Y308-35	67	70	1.05	0.069 1	0.002 1	1.397 3	0.045 3	0.145 3	0.002 2	901.9	64.0	887.8	19.2	874.6	12.4		98
S17Y308-36	98	105	1.08	0.072 3	0.001 8	1.539 9	0.038 6	0.153 5	0.002 0	994.4	50.0	946.4	15.4	920.6	11.1		97
S17Y308-38	219	184	0.84	0.072 8	0.001 8	1.226 6	0.028 9	0.121 1	0.001 6	1 009.3	46.1	812.8	13.2	737.1	9.3		90
S17Y308-39	62	108	1.74	0.071 0	0.002 3	1.603 3	0.047 3	0.163 5	0.002 6	966.7	61.0	971.5	18.5	976.4	14.3		99
S17Y308-40	42	48	1.15	0.069 6	0.002 5	1.423 0	0.050 6	0.147 6	0.002 4	916.7	74.1	898.6	21.2	887.5	13.2		98
S17Y308-41	75	61	0.81	0.068 8	0.003 7	1.401 1	0.074 6	0.148 4	0.003 2	892.3	105.4	889.4	31.6	891.9	17.9		99
S17Y308-42	50	109	2.19	0.070 5	0.003 1	1.421 1	0.057 1	0.147 7	0.002 9	944.1	91.2	897.8	23.9	887.9	16.4		98
S17Y308-43	80	106	1.31	0.068 8	0.002 7	1.361 0	0.053 5	0.143 3	0.002 8	894.4	82.3	872.3	23.0	863.2	15.6		98
S17Y308-45	314	384	1.22	0.072 6	0.002 1	1.465 8	0.038 2	0.145 6	0.001 9	1 011.1	58.2	916.4	15.7	876.3	10.9		95
S17Y308-47	82	125	1.52	0.064 2	0.003 0	1.275 6	0.054 5	0.144 7	0.003 3	750.0	100.0	834.9	24.3	871.1	18.5		95
S17Y308-48	38	74	1.97	0.067 7	0.003 0	1.466 6	0.065 0	0.156 1	0.003 1	861.1	91.8	916.7	26.8	935.0	17.2		98
S17Y308-49	111	165	1.49	0.070 6	0.002 8	1.454 7	0.053 5	0.149 5	0.002 8	946.3	82.3	911.8	22.1	898.1	15.4		98
S17Y308-51	79	99	1.26	0.074 6	0.004 7	1.544 9	0.083 2	0.155 7	0.004 1	1 057.4	132.4	948.5	33.2	932.8	22.8		98
S17Y308-52	165	227	1.37	0.071 6	0.003 4	1.412 3	0.060 4	0.144 4	0.003 2	975.9	97.1	894.1	25.4	869.3	17.9		97
S17Y308-54	171	207	1.21	0.068 1	0.003 3	1.360 0	0.062 5	0.144 9	0.003 0	872.2	99.2	871.9	26.9	872.6	17.0		99
测试点	含量/10^-6		Th/U	同位素比值						年龄/Ma							谐和度/%
测试点	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U		±1σ	谐和度/%
S17Y308-55	31	43	1.38	0.082 8	0.006 9	1.709 7	0.138 9	0.154 6	0.005 0	1 264.8	163.0	1 012.2	52.1	926.8		27.7	91
S17Y308-58	179	341	1.90	0.075 2	0.002 9	1.420 3	0.050 6	0.138 8	0.002 9	1 073.2	77.8	897.5	21.2	837.8		16.6	93
S17Y308-59	46	92	1.99	0.081 1	0.006 1	1.415 5	0.083 8	0.134 6	0.003 5	1 233.3	115.7	895.5	35.3	814.2		19.8	90
S17Y308-60	66	314	4.75	0.062 8	0.002 7	1.054 5	0.048 4	0.121 0	0.003 2	701.9	92.6	731.1	23.9	736.1		18.3	99
S17Y308-61	53	114	2.14	0.065 8	0.004 0	1.176 2	0.063 0	0.134 3	0.003 7	1 200.0	95.4	789.5	29.4	812.3		21.2	97
S17Y308-65	312	342	1.10	0.069 4	0.002 3	1.296 0	0.042 0	0.135 4	0.002 4	922.2	73.2	843.9	18.6	818.6		13.4	96
S17Y308-66	58	86	1.49	0.069 9	0.003 3	1.518 6	0.072 8	0.159 2	0.003 3	925.6	93.5	937.9	29.3	952.4		18.1	98
S17Y308-67	64	77	1.21	0.075 2	0.003 7	1.407 0	0.065 2	0.139 9	0.003 3	1 075.9	96.8	891.9	27.5	844.3		18.5	94
S17Y308-68	52	79	1.51	0.069 1	0.003 2	1.303 8	0.064 7	0.137 2	0.003 0	902.8	95.2	847.4	28.5	828.9		17.0	97
S17Y308-69	140	131	0.94	0.067 8	0.002 6	1.372 7	0.046 7	0.149 0	0.002 7	864.8	78.5	877.3	20.0	895.1		15.3	97
S17Y308-70	119	235	1.97	0.065 7	0.002 1	1.435 6	0.043 2	0.159 3	0.002 5	798.2	68.5	903.9	18.0	952.8		13.9	94
S17Y308-71	74	73	0.99	0.070 4	0.003 8	1.381 3	0.067 5	0.145 6	0.003 0	938.9	113.9	881.0	28.8	876.5		16.9	99
S17Y308-72	112	167	1.49	0.068 7	0.002 5	1.351 1	0.044 7	0.144 5	0.002 3	900.0	75.9	868.0	19.3	870.1		13.2	99
S17Y308-73	39	69	1.77	0.065 1	0.003 4	1.260 1	0.064 3	0.142 5	0.003 1	788.9	111.1	828.0	28.9	858.9		17.6	96
S17Y308-74	169	166	0.98	0.068 4	0.002 0	1.391 2	0.041 0	0.147 5	0.002 2	881.2	61.1	885.2	17.4	887.0		12.2	99
S17Y308-75	39	64	1.63	0.068 2	0.003 2	1.283 9	0.056 9	0.138 9	0.002 6	875.9	96.3	838.6	25.3	838.2		14.8	99
S17Y308-76	32	64	2.00	0.076 0	0.003 4	1.437 1	0.058 4	0.140 5	0.002 5	1 094.4	90.3	904.5	24.3	847.7		14.2	93
S17Y308-77	53	65	1.23	0.065 9	0.002 9	1.301 3	0.058 4	0.145 5	0.003 0	1 200.0	93.4	846.3	25.8	875.6		16.7	96
S17Y308-78	88	224	2.55	0.071 2	0.001 9	1.457 7	0.044 3	0.147 2	0.002 3	962.7	55.6	913.1	18.3	885.0		12.7	96
S17Y308-79	45	56	1.24	0.073 7	0.003 7	1.360 7	0.063 1	0.137 0	0.002 9	1 035.2	101.1	872.2	27.2	827.8		16.2	94
S17Y308-80	153	292	1.91	0.070 5	0.001 6	1.468 2	0.037 6	0.150 1	0.002 3	942.6	48.1	917.4	15.5	901.5		12.8	98
S17Y308-81	141	162	1.15	0.076 1	0.002 3	1.704 3	0.054 4	0.161 0	0.002 5	1 098.2	65.3	1 010.1	20.4	962.1		14.0	95
S17Y308-82	39	62	1.57	0.065 0	0.002 7	1.095 1	0.043 5	0.121 3	0.002 4	775.9	87.0	751.0	21.1	738.3		14.0	98
S17Y308-83	40	65	1.61	0.070 5	0.002 9	1.359 7	0.054 2	0.141 5	0.002 8	942.6	88.0	871.7	23.3	853.1		15.9	97
S17Y308-84	49	63	1.29	0.069 9	0.002 6	1.364 3	0.049 5	0.142 0	0.002 8	924.1	71.3	873.7	21.3	856.0		15.9	97
S17Y308-85	23	36	1.57	0.070 2	0.003 4	1.420 6	0.068 9	0.150 1	0.003 9	1 000.0	98.2	897.6	28.9	901.5		21.7	99
S17Y308-86	50	77	1.55	0.066 3	0.002 4	1.340 1	0.051 0	0.145 9	0.002 5	816.7	77.8	863.3	22.1	877.8		13.8	98
S17Y308-87	162	210	1.30	0.069 0	0.002 1	1.320 5	0.040 3	0.137 6	0.002 4	899.7	62.2	854.8	17.6	830.9		13.6	97
S17Y308-88	49	60	1.22	0.065 5	0.002 7	1.340 6	0.053 7	0.148 9	0.002 4	790.7	85.2	863.5	23.3	895.0		13.5	96
S17Y308-89	200	256	1.28	0.068 2	0.001 8	1.325 0	0.034 5	0.140 1	0.001 9	875.9	56.6	856.7	15.1	845.0		11.0	98
S17Y308-92	170	281	1.65	0.069 7	0.001 9	1.457 5	0.040 3	0.150 1	0.002 2	920.4	56.6	913.0	16.7	901.4		12.5	98
S17Y308-93	73	76	1.04	0.066 0	0.002 5	1.223 3	0.042 3	0.135 8	0.002 6	805.6	79.6	811.3	19.3	821.0		15.0	98
S17Y308-94	268	236	0.88	0.063 0	0.001 6	1.245 2	0.031 8	0.142 3	0.002 2	705.6	53.7	821.2	14.4	857.8		12.6	95
S17Y308-95	61	85	1.40	0.067 6	0.002 5	1.322 4	0.047 9	0.141 6	0.002 4	855.2	77.8	855.6	21.0	853.5		13.4	99
S17Y308-97	53	109	2.06	0.069 0	0.002 1	1.370 7	0.039 5	0.143 4	0.002 0	899.7	62.2	876.5	16.9	864.0		11.3	98
S17Y308-98	139	163	1.17	0.070 3	0.002 3	1.209 5	0.038 5	0.123 7	0.002 0	936.1	66.7	804.9	17.7	751.6		11.5	93
S17Y308-99	121	175	1.44	0.067 0	0.001 9	1.380 9	0.039 5	0.148 4	0.002 1	835.2	59.7	880.8	16.9	892.0		12.0	98
S17Y308-100	92	112	1.22	0.069 1	0.002 6	1.311 8	0.045 7	0.137 4	0.002 2	901.9	71.3	850.9	20.1	830.0		12.6	97
S17Y308-101	460	459	1.00	0.075 3	0.002 3	1.255 6	0.034 2	0.119 1	0.002 0	1 077.5	60.0	825.9	15.4	725.3		11.6	87
S17Y308-102	201	186	0.92	0.067 5	0.002 4	1.148 7	0.040 0	0.121 5	0.001 9	853.7	68.4	776.6	18.9	739.2		11.2	95
S17Y308-103	319	499	1.56	0.066 5	0.001 9	1.104 9	0.033 2	0.118 0	0.001 8	821.9	59.3	755.7	16.0	719.1		10.3	95
S17Y308-104	226	295	1.31	0.072 1	0.004 9	1.210 8	0.039 7	0.122 0	0.002 1	990.7	140.7	805.6	18.2	742.1		12.3	91
S17Y308-105	206	267	1.30	0.069 8	0.002 8	1.163 5	0.052 1	0.118 7	0.002 5	924.1	81.9	783.6	24.4	723.3		14.4	91

测试点	含量/10^-6		Th/U	同位素比值						年龄/Ma							谐和度/%
测试点	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	²⁰⁷Pb/ ²⁰⁶Pb	±1σ		²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	谐和度/%
S17Y301-2	77	119	0.65	0.115 1	0.002 3	5.745 1	0.118 7	0.357 5	0.004 3	1 883.3	31.3		1 938.2	17.9	1 970.1	20.7	98
S17Y301-3	80	114	0.70	0.066 4	0.001 6	1.356 6	0.033 3	0.146 3	0.001 9	816.7	48.9		870.4	14.3	880.2	10.5	98
S17Y301-4	24	39	0.61	0.063 9	0.002 5	1.255 2	0.049 9	0.141 8	0.002 3	738.9	83.3		825.8	22.5	854.7	13.0	96
S17Y301-5	209	279	0.75	0.073 6	0.003 0	1.308 4	0.035 0	0.129 1	0.001 9	1 031.5	88.0		849.4	15.4	782.5	11.1	91
S17Y301-6	158	199	0.79	0.066 1	0.001 5	1.319 1	0.030 7	0.142 7	0.001 6	809.3	47.1		854.1	13.4	859.7	9.1	99
S17Y301-7	92	126	0.73	0.063 1	0.001 7	1.183 7	0.032 4	0.134 8	0.001 8	722.2	57.4		793.0	15.1	815.1	10.4	97
S17Y301-8	65	83	0.79	0.110 6	0.002 3	5.176 7	0.111 7	0.335 9	0.004 7	1 809.3	38.3		1 848.8	18.4	1 866.8	22.9	99
S17Y301-9	63	80	0.79	0.063 7	0.001 9	1.255 4	0.033 2	0.139 7	0.002 1	731.5	30.6		825.8	15.0	843.0	11.6	97
S17Y301-10	91	97	0.94	0.062 1	0.001 8	1.152 3	0.032 9	0.133 1	0.002 0	675.9	61.1		778.3	15.5	805.5	11.4	96
S17Y301-11	191	260	0.73	0.064 5	0.001 8	1.293 8	0.036 3	0.143 3	0.002 1	766.7	59.3		843.0	16.1	863.2	11.9	97
S17Y301-12	11	25	0.45	0.064 4	0.003 6	1.350 4	0.072 8	0.153 8	0.003 6	766.7	121.3		867.7	31.5	922.3	19.9	93
S17Y301-13	88	102	0.86	0.064 1	0.002 2	1.135 5	0.036 7	0.127 1	0.001 9	746.3	72.2		770.4	17.4	771.1	10.9	99
S17Y301-14	286	193	1.48	0.065 7	0.001 7	1.224 5	0.030 1	0.134 0	0.002 0	796.0	53.7		811.9	13.7	810.6	11.3	99
S17Y301-15	256	259	0.99	0.071 5	0.001 7	1.697 4	0.042 3	0.169 4	0.002 3	972.2	48.6		1 007.5	15.9	1 009.0	12.6	99
S17Y301-16	215	247	0.87	0.066 2	0.001 5	1.267 8	0.029 3	0.137 0	0.001 9	813.0	48.1		831.4	13.1	827.6	10.8	99
S17Y301-17	185	162	1.14	0.065 3	0.001 7	1.254 7	0.032 2	0.137 9	0.002 0	783.3	55.6		825.5	14.5	833.0	11.4	99
S17Y301-18	15	32	0.46	0.063 0	0.002 9	1.304 9	0.061 0	0.149 2	0.002 8	705.6	297.2		847.9	26.9	896.6	15.6	94
S17Y301-19	48	63	0.75	0.057 0	0.003 4	0.885 8	0.045 4	0.112 6	0.002 3	500.0	131.5		644.1	24.4	687.8	13.5	93
S17Y301-20	39	55	0.71	0.066 9	0.002 8	1.305 5	0.052 2	0.141 5	0.002 5	833.0	86.3		848.2	23.0	853.2	14.2	99
S17Y301-21	11	29	0.37	0.071 2	0.003 8	1.472 7	0.072 6	0.151 8	0.003 4	962.0	141.7		919.3	29.8	911.0	19.3	99
S17Y301-22	24	45	0.53	0.066 3	0.003 4	1.423 9	0.074 3	0.156 8	0.003 7	816.7	107.9		899.0	31.1	938.9	20.8	95
S17Y301-23	31	42	0.73	0.064 0	0.003 8	1.231 8	0.066 1	0.142 4	0.003 1	742.6	124.8		815.1	30.1	858.3	17.7	94
S17Y301-24	76	102	0.75	0.062 9	0.002 2	1.271 6	0.047 0	0.144 8	0.002 4	701.9	72.1		833.1	21.0	871.5	13.6	95
S17Y301-25	56	219	0.26	0.065 6	0.001 8	1.268 5	0.035 0	0.138 3	0.002 0	794.4	55.6		831.7	15.7	835.3	11.2	99
S17Y301-26	169	178	0.95	0.064 6	0.002 3	1.127 6	0.039 6	0.126 4	0.002 2	761.1	75.9		766.6	18.9	767.5	12.5	99
S17Y301-27	34	49	0.69	0.065 9	0.003 3	1.129 1	0.049 4	0.126 6	0.003 0	805.6	106.3		767.3	23.6	768.6	17.4	99
S17Y301-28	144	142	1.02	0.066 7	0.002 5	1.255 5	0.046 3	0.136 5	0.002 3	827.8	79.6		825.9	20.8	824.7	13.0	99
S17Y301-29	59	64	0.93	0.069 0	0.003 0	1.274 1	0.052 6	0.134 0	0.002 7	898.2	89.4		834.2	23.5	810.6	15.5	97
S17Y301-30	40	60	0.66	0.064 9	0.003 3	1.318 6	0.064 7	0.149 7	0.003 3	770.1	109.3		853.9	28.3	899.5	18.6	94
S17Y301-31	110	169	0.65	0.065 6	0.002 4	1.243 0	0.042 9	0.136 4	0.002 3	794.4	77.8		820.2	19.4	824.4	12.8	99
S17Y301-32	109	254	0.43	0.069 2	0.001 9	1.366 0	0.038 5	0.140 8	0.002 1	905.6	52.8		874.4	16.5	849.2	11.9	97
S17Y301-33	64	90	0.71	0.064 5	0.002 7	1.270 0	0.047 3	0.143 0	0.002 4	766.7	54.6		832.4	21.2	861.8	13.5	96
S17Y301-34	74	118	0.62	0.068 4	0.002 3	1.275 6	0.041 1	0.135 1	0.002 3	879.6	71.4		834.9	18.4	817.1	13.3	97
S17Y301-35	46	111	0.41	0.066 2	0.002 4	1.388 1	0.048 8	0.152 0	0.002 8	813.0	70.2		883.9	20.7	912.2	15.5	96
S17Y301-36	195	230	0.85	0.065 9	0.001 8	1.167 2	0.029 6	0.127 8	0.001 7	1 200.0	57.4		785.3	13.9	775.2	9.8	98
S17Y301-37	76	92	0.83	0.069 8	0.003 1	1.243 3	0.048 6	0.132 0	0.002 7	921.9	91.2		820.4	22.0	799.5	15.3	97
S17Y301-38	56	76	0.73	0.115 3	0.003 0	5.123 9	0.137 1	0.319 4	0.004 6	1 884.9	47.4		1 840.1	22.8	1 786.8	22.4	97
S17Y301-39	137	184	0.75	0.065 6	0.002 3	1.184 6	0.041 0	0.130 8	0.002 5	794.4	72.2		793.4	19.0	792.2	14.0	99
S17Y301-40	95	145	0.66	0.113 3	0.002 7	5.285 5	0.128 9	0.335 1	0.004 7	1 853.7	42.7		1 866.5	20.9	1 863.0	22.8	99
S17Y301-41	92	108	0.85	0.066 7	0.002 6	1.177 4	0.043 3	0.128 7	0.002 4	827.8	83.3		790.1	20.2	780.3	13.5	98
S17Y301-42	67	73	0.92	0.136 5	0.003 5	7.743 8	0.212 6	0.408 2	0.006 7	2 183.0	44.4		2 201.7	24.7	2 206.9	30.5	99
S17Y301-43	77	280	0.27	0.117 6	0.002 4	5.812 7	0.128 2	0.354 6	0.004 9	1 920.4	41.7		1 948.3	19.1	1 956.4	23.3	99
测试点	含量/10^-6		Th/U	同位素比值						年龄/Ma							谐和度/%
测试点	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	²⁰⁷Pb/ ²⁰⁶Pb	±1σ		²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	谐和度/%
S17Y301-44	102	105	0.97	0.067 1	0.002 0	1.335 6	0.042 2	0.143 8	0.002 7	842.6	64.0		861.3	18.3	866.3	15.3	99
S17Y301-45	160	111	1.44	0.064 4	0.002 4	1.008 3	0.036 9	0.112 3	0.001 8	753.7	76.7		708.0	18.7	686.2	10.3	96
S17Y301-46	33	47	0.69	0.069 5	0.002 8	1.328 0	0.052 8	0.139 2	0.002 5	922.2	83.3		858.0	23.0	840.2	14.0	97
S17Y301-47	31	75	0.42	0.066 7	0.002 1	1.319 9	0.040 7	0.142 4	0.002 1	827.8	66.7		854.5	17.8	858.5	11.7	99
S17Y301-48	125	411	0.30	0.113 8	0.002 1	5.723 6	0.107 5	0.359 9	0.004 5	1 861.4	33.2		1 934.9	16.3	1 981.9	21.2	97
S17Y301-49	80	88	0.91	0.066 7	0.002 0	1.260 5	0.038 8	0.135 8	0.002 1	827.8	61.9		828.1	17.4	820.6	11.9	99
S17Y301-50	181	293	0.62	0.066 5	0.001 5	1.278 9	0.030 0	0.137 6	0.001 9	833.3	48.1		836.4	13.4	830.8	10.5	99
S17Y301-51	237	290	0.82	0.064 2	0.001 6	1.129 4	0.027 5	0.125 9	0.001 8	746.3	51.8		767.5	13.1	764.6	10.6	99
S17Y301-53	89	124	0.72	0.113 4	0.002 4	5.391 5	0.118 0	0.339 7	0.005 0	1 855.3	37.3		1 883.5	18.8	1 885.4	23.9	99
S17Y301-54	146	155	0.94	0.064 5	0.001 6	1.135 3	0.028 1	0.126 0	0.001 6	761.1	53.7		770.3	13.4	764.9	9.2	99
S17Y301-55	16	34	0.47	0.067 4	0.002 4	1.427 7	0.051 1	0.154 4	0.003 0	850.0	75.2		900.6	21.4	925.8	17.0	97
S17Y301-56	147	436	0.34	0.065 2	0.001 4	1.239 8	0.027 2	0.136 2	0.001 7	788.9	50.2		818.8	12.3	823.3	9.8	99
S17Y301-57	48	200	0.24	0.064 5	0.001 6	1.218 3	0.030 0	0.135 2	0.001 6	766.7	51.8		809.0	13.8	817.2	9.4	98
S17Y301-58	88	103	0.86	0.064 8	0.002 5	1.018 1	0.038 7	0.112 5	0.001 7	768.5	84.3		713.0	19.5	687.5	10.0	96
S17Y301-59	74	56	1.33	0.061 4	0.002 9	0.974 7	0.047 4	0.113 6	0.002 3	653.7	101.8		690.9	24.4	693.7	13.2	99
S17Y301-60	228	310	0.74	0.070 8	0.002 0	1.342 5	0.036 8	0.135 9	0.001 8	950.0	57.4		864.3	16.0	821.2	10.0	94
S17Y301-61	51	70	0.74	0.066 3	0.002 8	1.229 5	0.051 1	0.133 9	0.002 4	816.7	88.1		814.1	23.3	810.1	13.9	99
S17Y301-62	190	299	0.64	0.075 7	0.002 2	1.553 1	0.043 5	0.147 2	0.002 0	1 087.0	57.4		951.7	17.3	885.5	11.1	92
S17Y301-63	72	84	0.86	0.068 1	0.002 4	1.291 7	0.041 7	0.137 5	0.002 1	870.1	71.1		842.1	18.5	830.6	11.9	98
S17Y301-64	74	154	0.48	0.091 5	0.002 1	3.013 0	0.072 6	0.236 2	0.003 1	1 457.7	44.4		1 410.9	18.4	1 367.0	16.1	96
S17Y301-65	183	284	0.64	0.073 4	0.001 7	1.371 1	0.030 6	0.134 5	0.001 7	1 033.3	47.7		876.6	13.1	813.5	9.5	92
S17Y301-66	185	251	0.74	0.064 2	0.001 5	1.153 6	0.025 8	0.129 5	0.001 9	746.3	48.1		778.9	12.2	784.8	10.7	99
S17Y301-67	105	140	0.75	0.064 2	0.001 6	1.132 0	0.029 5	0.126 8	0.001 7	747.8	252.8		768.7	14.1	769.8	9.6	99
S17Y301-68	44	197	0.23	0.118 8	0.002 2	5.932 3	0.109 2	0.358 3	0.003 8	1 939.2	32.9		1 966.0	16.1	1 974.0	17.9	99
S17Y301-69	170	155	1.10	0.067 6	0.002 5	1.177 3	0.044 2	0.125 3	0.002 1	855.2	69.4		790.0	20.6	760.9	12.2	96
S17Y301-70	324	368	0.88	0.071 8	0.001 6	1.362 2	0.031 2	0.136 7	0.001 8	988.9	50.9		872.8	13.4	825.9	10.3	94
S17Y301-71	11	30	0.39	0.067 4	0.002 8	1.414 9	0.058 7	0.151 8	0.002 8	850.0	117.6		895.2	24.7	911.0	15.9	98
S17Y301-72	14	34	0.40	0.064 4	0.002 8	1.262 9	0.047 3	0.144 6	0.002 6	753.7	91.8		829.2	21.2	870.5	14.6	95
S17Y301-73	26	36	0.71	0.071 5	0.004 1	1.421 3	0.066 4	0.145 7	0.003 2	972.2	118.5		897.9	27.9	876.9	18.0	97
S17Y301-74	73	103	0.71	0.064 1	0.001 7	1.156 2	0.030 0	0.129 6	0.001 8	746.3	256.5		780.2	14.1	785.4	10.1	99
S17Y301-75	4	9	0.50	0.122 1	0.005 2	5.714 6	0.233 8	0.341 7	0.006 4	1 987.4	75.3		1 933.6	35.4	1 894.7	30.8	97
S17Y301-76	72	148	0.49	0.063 7	0.001 6	1.160 4	0.028 2	0.129 8	0.001 6	731.5	51.8		782.1	13.3	787.0	9.2	99
S17Y301-77	301	238	1.27	0.063 2	0.002 3	0.993 6	0.029 0	0.112 8	0.002 5	722.2	76.7		700.5	14.8	688.8	14.8	98
S17Y301-78	244	202	1.21	0.063 8	0.006 7	1.008 9	0.036 9	0.112 3	0.002 3	744.5	222.2		708.3	18.7	686.2	13.3	96
S17Y301-79	135	128	1.05	0.065 0	0.001 9	1.173 3	0.032 6	0.128 5	0.001 9	775.9	56.5		788.2	15.2	779.2	11.0	98
S17Y301-80	71	96	0.74	0.107 8	0.002 9	5.014 6	0.126 9	0.329 7	0.005 1	1 762.0	44.0		1821.8	21.5	1 837.1	24.6	99
S17Y301-81	267	345	0.77	0.069 4	0.002 7	1.107 9	0.040 1	0.112 6	0.002 2	922.2	79.6		757.2	19.3	687.7	12.5	90
S17Y301-82	91	115	0.79	0.064 8	0.002 2	1.269 2	0.044 0	0.138 5	0.002 2	766.4	69.4		832.0	19.7	836.0	12.6	99
S17Y301-83	88	113	0.78	0.064 8	0.002 1	1.235 6	0.035 6	0.135 8	0.002 1	768.5	67.7		816.9	16.2	820.7	11.9	99
S17Y301-84	216	386	0.56	0.113 9	0.002 7	6.011 2	0.152 0	0.372 9	0.006 2	1 862.7	43.8		1 977.5	22.1	2 042.9	28.9	96
S17Y301-85	186	172	1.08	0.064 3	0.002 4	1.020 0	0.034 3	0.112 8	0.002 1	751.6	77.8		713.9	17.2	689.3	12.3	96
S17Y301-86	30	58	0.52	0.065 0	0.002 6	1.283 5	0.053 0	0.140 6	0.002 4	772.2	86.3		838.4	23.6	848.2	13.6	98
测试点	含量/10^-6		Th/U	同位素比值						年龄/Ma							谐和度/%
测试点	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	²⁰⁷Pb/ ²⁰⁶Pb		±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	谐和度/%
S17Y301-87	90	181	0.50	0.063 9	0.001 6	1.299 3	0.032 5	0.144 7	0.002 1	738.9		53.7	845.4	14.4	871.4	11.7	96
S17Y301-88	44	116	0.38	0.067 4	0.001 8	1.367 8	0.033 9	0.145 4	0.002 1	850.0		53.7	875.2	14.5	875.1	11.7	99
S17Y301-89	43	48	0.89	0.144 2	0.003 2	9.055 5	0.206 1	0.448 9	0.007 2	2 279.6		38.6	2 343.6	20.9	2 390.6	32.1	98
S17Y301-90	191	459	0.42	0.065 2	0.001 4	1.297 5	0.028 8	0.141 8	0.001 9	788.9		40.6	844.6	12.7	855.1	11.0	98
S17Y301-91	39	52	0.76	0.064 4	0.002 3	1.179 0	0.041 9	0.131 8	0.002 2	766.7		77.0	790.8	19.5	798.3	12.8	99
S17Y301-92	89	96	0.93	0.067 2	0.001 9	1.333 3	0.038 8	0.142 4	0.002 1	844.1		59.3	860.3	16.9	858.0	11.8	99
S17Y301-93	35	59	0.61	0.061 6	0.002 1	1.168 1	0.037 9	0.137 7	0.002 2	661.1		78.7	785.7	17.7	831.4	12.3	94
S17Y301-94	167	171	0.98	0.060 4	0.002 0	1.205 6	0.028 8	0.141 6	0.002 0	616.7		72.2	803.2	13.3	853.7	11.2	93
S17Y301-95	117	259	0.45	0.066 7	0.001 3	1.259 4	0.025 6	0.135 7	0.001 7	827.8		45.4	827.7	11.5	820.5	9.4	99
S17Y301-96	325	358	0.91	0.072 6	0.001 4	1.355 1	0.026 0	0.135 0	0.002 0	1 005.6		38.9	869.8	11.2	816.6	11.5	93
S17Y301-97	199	127	1.57	0.063 4	0.002 2	0.989 5	0.033 8	0.112 4	0.002 0	721.9		69.4	698.5	17.3	686.8	11.4	98
S17Y301-98	133	150	0.89	0.065 0	0.001 7	1.160 1	0.030 0	0.128 9	0.001 9	775.9		53.7	782.0	14.1	781.5	10.8	99
S17Y301-99	19	31	0.61	0.065 9	0.002 6	1.233 0	0.045 5	0.138 1	0.002 5	1 200.0		83.3	815.7	20.7	833.8	13.9	97

测试点	含量/10^-6		Th/U	同位素比值						年龄/Ma							谐和度/%
测试点	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	²⁰⁷Pb/ ²⁰⁶Pb	±1σ		²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	谐和度/%
S17Y301-2	77	119	0.65	0.115 1	0.002 3	5.745 1	0.118 7	0.357 5	0.004 3	1 883.3	31.3		1 938.2	17.9	1 970.1	20.7	98
S17Y301-3	80	114	0.70	0.066 4	0.001 6	1.356 6	0.033 3	0.146 3	0.001 9	816.7	48.9		870.4	14.3	880.2	10.5	98
S17Y301-4	24	39	0.61	0.063 9	0.002 5	1.255 2	0.049 9	0.141 8	0.002 3	738.9	83.3		825.8	22.5	854.7	13.0	96
S17Y301-5	209	279	0.75	0.073 6	0.003 0	1.308 4	0.035 0	0.129 1	0.001 9	1 031.5	88.0		849.4	15.4	782.5	11.1	91
S17Y301-6	158	199	0.79	0.066 1	0.001 5	1.319 1	0.030 7	0.142 7	0.001 6	809.3	47.1		854.1	13.4	859.7	9.1	99
S17Y301-7	92	126	0.73	0.063 1	0.001 7	1.183 7	0.032 4	0.134 8	0.001 8	722.2	57.4		793.0	15.1	815.1	10.4	97
S17Y301-8	65	83	0.79	0.110 6	0.002 3	5.176 7	0.111 7	0.335 9	0.004 7	1 809.3	38.3		1 848.8	18.4	1 866.8	22.9	99
S17Y301-9	63	80	0.79	0.063 7	0.001 9	1.255 4	0.033 2	0.139 7	0.002 1	731.5	30.6		825.8	15.0	843.0	11.6	97
S17Y301-10	91	97	0.94	0.062 1	0.001 8	1.152 3	0.032 9	0.133 1	0.002 0	675.9	61.1		778.3	15.5	805.5	11.4	96
S17Y301-11	191	260	0.73	0.064 5	0.001 8	1.293 8	0.036 3	0.143 3	0.002 1	766.7	59.3		843.0	16.1	863.2	11.9	97
S17Y301-12	11	25	0.45	0.064 4	0.003 6	1.350 4	0.072 8	0.153 8	0.003 6	766.7	121.3		867.7	31.5	922.3	19.9	93
S17Y301-13	88	102	0.86	0.064 1	0.002 2	1.135 5	0.036 7	0.127 1	0.001 9	746.3	72.2		770.4	17.4	771.1	10.9	99
S17Y301-14	286	193	1.48	0.065 7	0.001 7	1.224 5	0.030 1	0.134 0	0.002 0	796.0	53.7		811.9	13.7	810.6	11.3	99
S17Y301-15	256	259	0.99	0.071 5	0.001 7	1.697 4	0.042 3	0.169 4	0.002 3	972.2	48.6		1 007.5	15.9	1 009.0	12.6	99
S17Y301-16	215	247	0.87	0.066 2	0.001 5	1.267 8	0.029 3	0.137 0	0.001 9	813.0	48.1		831.4	13.1	827.6	10.8	99
S17Y301-17	185	162	1.14	0.065 3	0.001 7	1.254 7	0.032 2	0.137 9	0.002 0	783.3	55.6		825.5	14.5	833.0	11.4	99
S17Y301-18	15	32	0.46	0.063 0	0.002 9	1.304 9	0.061 0	0.149 2	0.002 8	705.6	297.2		847.9	26.9	896.6	15.6	94
S17Y301-19	48	63	0.75	0.057 0	0.003 4	0.885 8	0.045 4	0.112 6	0.002 3	500.0	131.5		644.1	24.4	687.8	13.5	93
S17Y301-20	39	55	0.71	0.066 9	0.002 8	1.305 5	0.052 2	0.141 5	0.002 5	833.0	86.3		848.2	23.0	853.2	14.2	99
S17Y301-21	11	29	0.37	0.071 2	0.003 8	1.472 7	0.072 6	0.151 8	0.003 4	962.0	141.7		919.3	29.8	911.0	19.3	99
S17Y301-22	24	45	0.53	0.066 3	0.003 4	1.423 9	0.074 3	0.156 8	0.003 7	816.7	107.9		899.0	31.1	938.9	20.8	95
S17Y301-23	31	42	0.73	0.064 0	0.003 8	1.231 8	0.066 1	0.142 4	0.003 1	742.6	124.8		815.1	30.1	858.3	17.7	94
S17Y301-24	76	102	0.75	0.062 9	0.002 2	1.271 6	0.047 0	0.144 8	0.002 4	701.9	72.1		833.1	21.0	871.5	13.6	95
S17Y301-25	56	219	0.26	0.065 6	0.001 8	1.268 5	0.035 0	0.138 3	0.002 0	794.4	55.6		831.7	15.7	835.3	11.2	99
S17Y301-26	169	178	0.95	0.064 6	0.002 3	1.127 6	0.039 6	0.126 4	0.002 2	761.1	75.9		766.6	18.9	767.5	12.5	99
S17Y301-27	34	49	0.69	0.065 9	0.003 3	1.129 1	0.049 4	0.126 6	0.003 0	805.6	106.3		767.3	23.6	768.6	17.4	99
S17Y301-28	144	142	1.02	0.066 7	0.002 5	1.255 5	0.046 3	0.136 5	0.002 3	827.8	79.6		825.9	20.8	824.7	13.0	99
S17Y301-29	59	64	0.93	0.069 0	0.003 0	1.274 1	0.052 6	0.134 0	0.002 7	898.2	89.4		834.2	23.5	810.6	15.5	97
S17Y301-30	40	60	0.66	0.064 9	0.003 3	1.318 6	0.064 7	0.149 7	0.003 3	770.1	109.3		853.9	28.3	899.5	18.6	94
S17Y301-31	110	169	0.65	0.065 6	0.002 4	1.243 0	0.042 9	0.136 4	0.002 3	794.4	77.8		820.2	19.4	824.4	12.8	99
S17Y301-32	109	254	0.43	0.069 2	0.001 9	1.366 0	0.038 5	0.140 8	0.002 1	905.6	52.8		874.4	16.5	849.2	11.9	97
S17Y301-33	64	90	0.71	0.064 5	0.002 7	1.270 0	0.047 3	0.143 0	0.002 4	766.7	54.6		832.4	21.2	861.8	13.5	96
S17Y301-34	74	118	0.62	0.068 4	0.002 3	1.275 6	0.041 1	0.135 1	0.002 3	879.6	71.4		834.9	18.4	817.1	13.3	97
S17Y301-35	46	111	0.41	0.066 2	0.002 4	1.388 1	0.048 8	0.152 0	0.002 8	813.0	70.2		883.9	20.7	912.2	15.5	96
S17Y301-36	195	230	0.85	0.065 9	0.001 8	1.167 2	0.029 6	0.127 8	0.001 7	1 200.0	57.4		785.3	13.9	775.2	9.8	98
S17Y301-37	76	92	0.83	0.069 8	0.003 1	1.243 3	0.048 6	0.132 0	0.002 7	921.9	91.2		820.4	22.0	799.5	15.3	97
S17Y301-38	56	76	0.73	0.115 3	0.003 0	5.123 9	0.137 1	0.319 4	0.004 6	1 884.9	47.4		1 840.1	22.8	1 786.8	22.4	97
S17Y301-39	137	184	0.75	0.065 6	0.002 3	1.184 6	0.041 0	0.130 8	0.002 5	794.4	72.2		793.4	19.0	792.2	14.0	99
S17Y301-40	95	145	0.66	0.113 3	0.002 7	5.285 5	0.128 9	0.335 1	0.004 7	1 853.7	42.7		1 866.5	20.9	1 863.0	22.8	99
S17Y301-41	92	108	0.85	0.066 7	0.002 6	1.177 4	0.043 3	0.128 7	0.002 4	827.8	83.3		790.1	20.2	780.3	13.5	98
S17Y301-42	67	73	0.92	0.136 5	0.003 5	7.743 8	0.212 6	0.408 2	0.006 7	2 183.0	44.4		2 201.7	24.7	2 206.9	30.5	99
S17Y301-43	77	280	0.27	0.117 6	0.002 4	5.812 7	0.128 2	0.354 6	0.004 9	1 920.4	41.7		1 948.3	19.1	1 956.4	23.3	99
测试点	含量/10^-6		Th/U	同位素比值						年龄/Ma							谐和度/%
测试点	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	²⁰⁷Pb/ ²⁰⁶Pb	±1σ		²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	谐和度/%
S17Y301-44	102	105	0.97	0.067 1	0.002 0	1.335 6	0.042 2	0.143 8	0.002 7	842.6	64.0		861.3	18.3	866.3	15.3	99
S17Y301-45	160	111	1.44	0.064 4	0.002 4	1.008 3	0.036 9	0.112 3	0.001 8	753.7	76.7		708.0	18.7	686.2	10.3	96
S17Y301-46	33	47	0.69	0.069 5	0.002 8	1.328 0	0.052 8	0.139 2	0.002 5	922.2	83.3		858.0	23.0	840.2	14.0	97
S17Y301-47	31	75	0.42	0.066 7	0.002 1	1.319 9	0.040 7	0.142 4	0.002 1	827.8	66.7		854.5	17.8	858.5	11.7	99
S17Y301-48	125	411	0.30	0.113 8	0.002 1	5.723 6	0.107 5	0.359 9	0.004 5	1 861.4	33.2		1 934.9	16.3	1 981.9	21.2	97
S17Y301-49	80	88	0.91	0.066 7	0.002 0	1.260 5	0.038 8	0.135 8	0.002 1	827.8	61.9		828.1	17.4	820.6	11.9	99
S17Y301-50	181	293	0.62	0.066 5	0.001 5	1.278 9	0.030 0	0.137 6	0.001 9	833.3	48.1		836.4	13.4	830.8	10.5	99
S17Y301-51	237	290	0.82	0.064 2	0.001 6	1.129 4	0.027 5	0.125 9	0.001 8	746.3	51.8		767.5	13.1	764.6	10.6	99
S17Y301-53	89	124	0.72	0.113 4	0.002 4	5.391 5	0.118 0	0.339 7	0.005 0	1 855.3	37.3		1 883.5	18.8	1 885.4	23.9	99
S17Y301-54	146	155	0.94	0.064 5	0.001 6	1.135 3	0.028 1	0.126 0	0.001 6	761.1	53.7		770.3	13.4	764.9	9.2	99
S17Y301-55	16	34	0.47	0.067 4	0.002 4	1.427 7	0.051 1	0.154 4	0.003 0	850.0	75.2		900.6	21.4	925.8	17.0	97
S17Y301-56	147	436	0.34	0.065 2	0.001 4	1.239 8	0.027 2	0.136 2	0.001 7	788.9	50.2		818.8	12.3	823.3	9.8	99
S17Y301-57	48	200	0.24	0.064 5	0.001 6	1.218 3	0.030 0	0.135 2	0.001 6	766.7	51.8		809.0	13.8	817.2	9.4	98
S17Y301-58	88	103	0.86	0.064 8	0.002 5	1.018 1	0.038 7	0.112 5	0.001 7	768.5	84.3		713.0	19.5	687.5	10.0	96
S17Y301-59	74	56	1.33	0.061 4	0.002 9	0.974 7	0.047 4	0.113 6	0.002 3	653.7	101.8		690.9	24.4	693.7	13.2	99
S17Y301-60	228	310	0.74	0.070 8	0.002 0	1.342 5	0.036 8	0.135 9	0.001 8	950.0	57.4		864.3	16.0	821.2	10.0	94
S17Y301-61	51	70	0.74	0.066 3	0.002 8	1.229 5	0.051 1	0.133 9	0.002 4	816.7	88.1		814.1	23.3	810.1	13.9	99
S17Y301-62	190	299	0.64	0.075 7	0.002 2	1.553 1	0.043 5	0.147 2	0.002 0	1 087.0	57.4		951.7	17.3	885.5	11.1	92
S17Y301-63	72	84	0.86	0.068 1	0.002 4	1.291 7	0.041 7	0.137 5	0.002 1	870.1	71.1		842.1	18.5	830.6	11.9	98
S17Y301-64	74	154	0.48	0.091 5	0.002 1	3.013 0	0.072 6	0.236 2	0.003 1	1 457.7	44.4		1 410.9	18.4	1 367.0	16.1	96
S17Y301-65	183	284	0.64	0.073 4	0.001 7	1.371 1	0.030 6	0.134 5	0.001 7	1 033.3	47.7		876.6	13.1	813.5	9.5	92
S17Y301-66	185	251	0.74	0.064 2	0.001 5	1.153 6	0.025 8	0.129 5	0.001 9	746.3	48.1		778.9	12.2	784.8	10.7	99
S17Y301-67	105	140	0.75	0.064 2	0.001 6	1.132 0	0.029 5	0.126 8	0.001 7	747.8	252.8		768.7	14.1	769.8	9.6	99
S17Y301-68	44	197	0.23	0.118 8	0.002 2	5.932 3	0.109 2	0.358 3	0.003 8	1 939.2	32.9		1 966.0	16.1	1 974.0	17.9	99
S17Y301-69	170	155	1.10	0.067 6	0.002 5	1.177 3	0.044 2	0.125 3	0.002 1	855.2	69.4		790.0	20.6	760.9	12.2	96
S17Y301-70	324	368	0.88	0.071 8	0.001 6	1.362 2	0.031 2	0.136 7	0.001 8	988.9	50.9		872.8	13.4	825.9	10.3	94
S17Y301-71	11	30	0.39	0.067 4	0.002 8	1.414 9	0.058 7	0.151 8	0.002 8	850.0	117.6		895.2	24.7	911.0	15.9	98
S17Y301-72	14	34	0.40	0.064 4	0.002 8	1.262 9	0.047 3	0.144 6	0.002 6	753.7	91.8		829.2	21.2	870.5	14.6	95
S17Y301-73	26	36	0.71	0.071 5	0.004 1	1.421 3	0.066 4	0.145 7	0.003 2	972.2	118.5		897.9	27.9	876.9	18.0	97
S17Y301-74	73	103	0.71	0.064 1	0.001 7	1.156 2	0.030 0	0.129 6	0.001 8	746.3	256.5		780.2	14.1	785.4	10.1	99
S17Y301-75	4	9	0.50	0.122 1	0.005 2	5.714 6	0.233 8	0.341 7	0.006 4	1 987.4	75.3		1 933.6	35.4	1 894.7	30.8	97
S17Y301-76	72	148	0.49	0.063 7	0.001 6	1.160 4	0.028 2	0.129 8	0.001 6	731.5	51.8		782.1	13.3	787.0	9.2	99
S17Y301-77	301	238	1.27	0.063 2	0.002 3	0.993 6	0.029 0	0.112 8	0.002 5	722.2	76.7		700.5	14.8	688.8	14.8	98
S17Y301-78	244	202	1.21	0.063 8	0.006 7	1.008 9	0.036 9	0.112 3	0.002 3	744.5	222.2		708.3	18.7	686.2	13.3	96
S17Y301-79	135	128	1.05	0.065 0	0.001 9	1.173 3	0.032 6	0.128 5	0.001 9	775.9	56.5		788.2	15.2	779.2	11.0	98
S17Y301-80	71	96	0.74	0.107 8	0.002 9	5.014 6	0.126 9	0.329 7	0.005 1	1 762.0	44.0		1821.8	21.5	1 837.1	24.6	99
S17Y301-81	267	345	0.77	0.069 4	0.002 7	1.107 9	0.040 1	0.112 6	0.002 2	922.2	79.6		757.2	19.3	687.7	12.5	90
S17Y301-82	91	115	0.79	0.064 8	0.002 2	1.269 2	0.044 0	0.138 5	0.002 2	766.4	69.4		832.0	19.7	836.0	12.6	99
S17Y301-83	88	113	0.78	0.064 8	0.002 1	1.235 6	0.035 6	0.135 8	0.002 1	768.5	67.7		816.9	16.2	820.7	11.9	99
S17Y301-84	216	386	0.56	0.113 9	0.002 7	6.011 2	0.152 0	0.372 9	0.006 2	1 862.7	43.8		1 977.5	22.1	2 042.9	28.9	96
S17Y301-85	186	172	1.08	0.064 3	0.002 4	1.020 0	0.034 3	0.112 8	0.002 1	751.6	77.8		713.9	17.2	689.3	12.3	96
S17Y301-86	30	58	0.52	0.065 0	0.002 6	1.283 5	0.053 0	0.140 6	0.002 4	772.2	86.3		838.4	23.6	848.2	13.6	98
测试点	含量/10^-6		Th/U	同位素比值						年龄/Ma							谐和度/%
测试点	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	²⁰⁷Pb/ ²⁰⁶Pb		±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	谐和度/%
S17Y301-87	90	181	0.50	0.063 9	0.001 6	1.299 3	0.032 5	0.144 7	0.002 1	738.9		53.7	845.4	14.4	871.4	11.7	96
S17Y301-88	44	116	0.38	0.067 4	0.001 8	1.367 8	0.033 9	0.145 4	0.002 1	850.0		53.7	875.2	14.5	875.1	11.7	99
S17Y301-89	43	48	0.89	0.144 2	0.003 2	9.055 5	0.206 1	0.448 9	0.007 2	2 279.6		38.6	2 343.6	20.9	2 390.6	32.1	98
S17Y301-90	191	459	0.42	0.065 2	0.001 4	1.297 5	0.028 8	0.141 8	0.001 9	788.9		40.6	844.6	12.7	855.1	11.0	98
S17Y301-91	39	52	0.76	0.064 4	0.002 3	1.179 0	0.041 9	0.131 8	0.002 2	766.7		77.0	790.8	19.5	798.3	12.8	99
S17Y301-92	89	96	0.93	0.067 2	0.001 9	1.333 3	0.038 8	0.142 4	0.002 1	844.1		59.3	860.3	16.9	858.0	11.8	99
S17Y301-93	35	59	0.61	0.061 6	0.002 1	1.168 1	0.037 9	0.137 7	0.002 2	661.1		78.7	785.7	17.7	831.4	12.3	94
S17Y301-94	167	171	0.98	0.060 4	0.002 0	1.205 6	0.028 8	0.141 6	0.002 0	616.7		72.2	803.2	13.3	853.7	11.2	93
S17Y301-95	117	259	0.45	0.066 7	0.001 3	1.259 4	0.025 6	0.135 7	0.001 7	827.8		45.4	827.7	11.5	820.5	9.4	99
S17Y301-96	325	358	0.91	0.072 6	0.001 4	1.355 1	0.026 0	0.135 0	0.002 0	1 005.6		38.9	869.8	11.2	816.6	11.5	93
S17Y301-97	199	127	1.57	0.063 4	0.002 2	0.989 5	0.033 8	0.112 4	0.002 0	721.9		69.4	698.5	17.3	686.8	11.4	98
S17Y301-98	133	150	0.89	0.065 0	0.001 7	1.160 1	0.030 0	0.128 9	0.001 9	775.9		53.7	782.0	14.1	781.5	10.8	99
S17Y301-99	19	31	0.61	0.065 9	0.002 6	1.233 0	0.045 5	0.138 1	0.002 5	1 200.0		83.3	815.7	20.7	833.8	13.9	97

测试点	含量/10^-6		Th/U	同位素比值						年龄/Ma						谐和度/%
测试点	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	谐和度/%
S17Y309-1	126	190	0.66	0.065 5	0.002 1	1.307 4	0.045 1	0.142 8	0.002 6	790.7	66.7	849.0	19.9	860.6	14.5	98
S17Y309-2	27	138	0.19	0.125 2	0.003 1	6.443 1	0.165 7	0.368 5	0.005 6	2 032.4	44.3	2 038.2	22.6	2 022.4	26.6	99
S17Y309-3	57	53	1.06	0.068 8	0.002 9	1.348 9	0.059 6	0.141 3	0.003 0	894.4	85.2	867.1	25.8	852.1	16.8	98
S17Y309-4	13	26	0.52	0.068 2	0.004 1	1.456 1	0.088 4	0.155 0	0.003 5	873.8	125.9	912.4	36.6	929.0	19.7	98
S17Y309-5	335	242	1.39	0.065 1	0.001 9	1.078 2	0.030 3	0.119 1	0.001 9	775.9	56.5	742.8	14.8	725.4	11.1	97
S17Y309-6	161	184	0.88	0.070 6	0.001 9	1.445 1	0.041 3	0.147 3	0.002 4	946.3	56.3	907.8	17.2	885.8	13.3	97
S17Y309-7	153	280	0.55	0.066 1	0.001 7	1.272 6	0.032 6	0.138 5	0.001 9	809.3	52.9	833.6	14.6	836.0	10.6	99
S17Y309-8	20	41	0.49	0.072 6	0.003 9	1.405 0	0.075 8	0.142 8	0.003 4	1 011.1	109.3	891.1	32.0	860.4	18.9	96
S17Y309-9	26	50	0.53	0.068 4	0.003 4	1.347 9	0.058 0	0.146 2	0.003 3	883.3	106.5	866.7	25.1	879.5	18.6	98
S17Y309-10	56	76	0.73	0.066 6	0.002 8	1.297 6	0.054 8	0.141 5	0.002 5	827.8	88.9	844.7	24.2	853.0	14.3	99
S17Y309-11	41	62	0.65	0.072 6	0.003 0	1.344 1	0.053 5	0.135 0	0.002 8	1 011.1	84.1	865.0	23.2	816.0	15.7	94
S17Y309-13	142	181	0.78	0.072 3	0.002 2	1.385 6	0.041 0	0.138 2	0.002 1	994.4	61.1	882.8	17.4	834.7	11.9	94
S17Y309-14	149	170	0.87	0.067 0	0.001 9	1.236 8	0.035 9	0.132 8	0.001 9	838.9	60.0	817.4	16.3	803.9	11.0	98
S17Y309-15	213	211	1.01	0.124 8	0.002 4	6.482 3	0.133 3	0.372 4	0.004 8	2 027.8	34.4	2 043.5	18.1	2 040.7	22.6	99
S17Y309-17	87	141	0.62	0.069 0	0.002 2	1.394 3	0.045 0	0.146 0	0.002 1	898.2	66.7	886.5	19.1	878.6	12.0	99
S17Y309-18	106	209	0.51	0.071 3	0.001 8	1.351 4	0.035 5	0.136 7	0.001 9	968.5	49.1	868.2	15.3	826.0	10.9	95
S17Y309-19	119	305	0.39	0.117 6	0.002 3	5.769 2	0.116 3	0.352 9	0.004 5	1 920.4	34.3	1 941.8	17.4	1 948.5	21.4	99
S17Y309-20	136	211	0.64	0.069 3	0.001 9	1.365 8	0.042 1	0.141 1	0.002 2	909.3	56.3	874.4	18.1	850.9	12.4	97
S17Y309-21	54	53	1.01	0.117 8	0.003 2	5.601 1	0.149 2	0.345 8	0.006 0	1 924.1	49.2	1 916.3	23.0	1 914.3	29.0	99
S17Y309-22	91	116	0.78	0.067 7	0.002 1	1.319 6	0.041 2	0.141 4	0.002 4	861.1	64.8	854.4	18.0	852.4	13.3	99
S17Y309-23	185	147	1.26	0.172 1	0.003 3	11.858 5	0.240 2	0.496 7	0.006 7	2 588.9	32.4	2 593.3	19.0	2 599.5	28.7	99
S17Y309-24	206	184	1.12	0.065 8	0.001 9	1.174 8	0.033 8	0.129 4	0.001 9	799.7	61.1	788.9	15.8	784.7	11.1	99
测试点	含量/10^-6		Th/U	同位素比值						年龄/Ma						谐和度/%
测试点	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	谐和度/%
S17Y309-25	132	75	1.76	0.065 5	0.003 1	1.007 7	0.047 2	0.112 1	0.002 3	790.7	106.5	00707.7	23.9	685.2	13.4	96
S17Y309-26	156	223	0.70	0.066 1	0.001 7	1.271 1	0.035 2	0.138 2	0.001 9	810.8	48.0	832.9	15.7	834.2	10.6	99
S17Y309-27	111	751	0.15	0.116 2	0.001 9	5.155 3	0.085 3	0.319 2	0.003 4	1 898.5	29.0	1 845.3	14.1	1 785.8	16.8	96
S17Y309-28	171	126	1.35	0.067 2	0.002 1	1.216 5	0.038 8	0.132 0	0.002 3	842.6	66.7	808.2	17.8	799.1	13.2	98
S17Y309-29	351	380	0.92	0.070 3	0.001 6	1.377 1	0.032 3	0.141 2	0.001 9	936.7	41.7	879.2	13.8	851.6	10.9	96
S17Y309-30	213	212	1.00	0.068 5	0.002 0	1.201 3	0.035 4	0.127 3	0.002 1	883.3	60.3	801.2	16.3	772.7	11.9	96
S17Y309-31	48	71	0.67	0.072 8	0.002 7	1.395 6	0.051 7	0.139 4	0.002 4	1 009.3	74.8	887.1	21.9	841.0	13.7	94
S17Y309-32	218	107	2.03	0.065 3	0.002 0	1.123 8	0.033 3	0.124 5	0.002 0	783.3	68.7	764.8	15.9	756.5	11.3	98
S17Y309-33	263	379	0.70	0.066 1	0.001 4	1.166 1	0.027 7	0.126 8	0.001 7	809.3	44.4	784.8	13.0	769.6	9.7	98
S17Y309-34	183	237	0.77	0.066 4	0.001 4	1.390 6	0.029 9	0.151 1	0.001 8	820.4	44.4	885.0	12.7	906.9	10.2	97
S17Y309-35	91	86	1.05	0.068 2	0.002 2	1.260 6	0.041 9	0.133 6	0.002 2	875.9	64.8	828.2	18.8	808.4	12.6	97
S17Y309-36	238	356	0.67	0.064 3	0.001 2	1.169 3	0.023 1	0.131 5	0.001 7	750.0	40.7	786.3	10.8	796.5	9.5	98
S17Y309-37	47	79	0.59	0.068 6	0.002 2	1.301 9	0.042 9	0.137 7	0.002 2	887.0	67.4	846.6	18.9	831.8	12.5	98
S17Y309-39	115	180	0.64	0.068 8	0.002 0	1.223 4	0.037 5	0.128 9	0.002 1	892.3	61.1	811.3	17.1	781.9	11.8	96
S17Y309-40	85	110	0.77	0.115 6	0.002 5	5.627 7	0.129 7	0.351 9	0.005 1	1 900.0	38.3	1 920.4	19.9	1 943.6	24.4	98
S17Y309-41	72	118	0.61	0.114 9	0.002 8	5.634 2	0.145 9	0.354 5	0.005 3	1 879.6	44.4	1 921.4	22.3	1 956.1	25.1	98
S17Y309-43	160	167	0.95	0.062 8	0.001 8	1.148 4	0.031 1	0.133 4	0.002 1	701.9	61.1	776.5	14.7	807.4	11.7	96
S17Y309-44	88	131	0.68	0.065 5	0.002 0	1.270 7	0.041 5	0.139 8	0.002 1	790.7	64.8	832.7	18.5	843.5	11.6	98
S17Y309-45	76	103	0.75	0.113 1	0.002 5	5.382 6	0.123 8	0.343 0	0.004 6	1 850.0	45.4	1 882.1	19.7	1 901.2	21.9	98
S17Y309-46	107	148	0.72	0.068 2	0.001 9	1.388 1	0.036 5	0.147 1	0.002 2	875.9	58.2	883.9	15.5	884.6	12.2	99
S17Y309-47	385	631	0.61	0.072 7	0.001 7	1.215 5	0.031 0	0.120 1	0.001 9	1 005.6	42.4	807.7	14.2	730.9	10.8	90
S17Y309-48	246	281	0.87	0.066 8	0.001 9	1.049 2	0.029 6	0.112 9	0.001 8	831.5	63.9	728.5	14.7	689.4	10.5	94
S17Y309-49	135	70	1.92	0.064 9	0.002 5	1.111 1	0.042 3	0.123 7	0.002 4	772.2	75.0	758.7	20.3	751.8	13.5	99
S17Y309-50	163	255	0.64	0.067 7	0.001 7	1.435 6	0.038 7	0.151 7	0.002 0	861.1	58.3	903.9	16.1	910.6	11.3	99
S17Y309-51	12	30	0.39	0.072 1	0.003 6	1.499 7	0.075 3	0.151 3	0.004 0	987.0	101.9	930.3	30.6	908.4	22.2	97
S17Y309-52	18	53	0.35	0.181 5	0.004 6	13.085 2	0.350 7	0.516 8	0.008 7	2 733.3	42.4	2 685.8	25.3	2 685.4	36.8	99
S17Y309-53	59	95	0.62	0.068 4	0.002 7	1.275 3	0.049 9	0.135 0	0.002 2	879.6	82.3	834.7	22.3	816.2	12.6	97
S17Y309-54	78	155	0.50	0.142 7	0.003 1	8.315 6	0.185 6	0.418 6	0.005 8	2 261.1	38.1	2 266.0	20.2	2 254.0	26.5	99
S17Y309-55	179	366	0.49	0.150 9	0.003 2	9.208 7	0.263 2	0.432 9	0.008 0	2 366.7	35.8	2 359.0	26.2	2 318.6	35.9	98
S17Y309-56	20	64	0.31	0.071 4	0.002 7	1.509 6	0.059 9	0.152 2	0.002 8	968.5	71.3	934.3	24.2	913.1	15.5	97
S17Y309-57	125	512	0.24	0.074 1	0.001 6	1.454 3	0.034 5	0.141 0	0.001 9	1 043.5	44.4	911.7	14.3	850.2	10.9	93
S17Y309-58	142	200	0.71	0.118 0	0.002 5	5.802 3	0.131 7	0.353 9	0.004 9	1 925.6	38.7	1 946.8	19.7	1 953.1	23.1	99
S17Y309-59	226	521	0.43	0.070 5	0.001 6	1.392 3	0.032 3	0.142 6	0.001 9	942.6	48.1	885.7	13.7	859.6	10.7	97
S17Y309-60	145	214	0.68	0.069 7	0.001 9	1.360 2	0.038 4	0.141 2	0.002 2	920.4	56.6	872.0	16.5	851.2	12.4	97
S17Y309-61	80	74	1.08	0.065 8	0.002 6	1.162 4	0.048 2	0.127 7	0.002 5	1 200.0	81.5	783.1	22.7	774.9	14.1	98
S17Y309-62	203	188	1.08	0.069 1	0.002 2	1.244 1	0.040 5	0.130 5	0.002 2	901.9	66.7	820.7	18.3	790.6	12.3	96
S17Y309-63	49	104	0.47	0.073 6	0.002 7	1.480 9	0.055 5	0.146 2	0.002 5	1 031.5	69.4	922.6	22.7	879.6	14.3	95
S17Y309-64	196	241	0.81	0.068 9	0.002 0	1.282 0	0.036 1	0.135 3	0.001 9	898.2	65.7	837.7	16.1	817.8	10.6	97
S17Y309-65	59	40	1.49	0.063 1	0.003 0	1.140 8	0.051 3	0.134 6	0.003 0	709.3	101.8	772.9	24.4	813.9	16.9	94
S17Y309-66	177	202	0.87	0.067 5	0.001 9	1.250 2	0.036 3	0.134 6	0.002 1	853.7	58.5	823.5	16.4	814.3	12.1	98
S17Y309-67	206	277	0.74	0.069 6	0.001 7	1.366 8	0.034 9	0.142 1	0.002 2	916.7	50.0	874.8	15.0	856.7	12.3	97
测试点	含量/10^-6		Th/U	同位素比值						年龄/Ma						谐和度/%
测试点	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	²⁰⁷Pb/ ²⁰⁶Pb	±1σ	²⁰⁷Pb/ ²³⁵U	±1σ	²⁰⁶Pb/ ²³⁸U	±1σ	谐和度/%
S17Y309-68	173	319	0.54	0.069 7	0.001 9	1.305 8	0.034 9	0.135 6	0.001 9	920.4	55.6	848.3	15.3	819.9	11.0	96
S17Y309-69	346	513	0.67	0.070 8	0.001 7	1.435 7	0.037 2	0.146 5	0.002 3	951.5	54.6	903.9	15.5	881.4	12.7	97
S17Y309-70	768	929	0.83	0.074 4	0.001 7	1.443 1	0.033 8	0.140 4	0.002 1	1 051.6	46.3	907.0	14.0	847.1	12.0	93
S17Y309-71	126	160	0.79	0.133 7	0.003 7	7.661 4	0.217 0	0.413 1	0.006 5	2 147.2	48.5	2 192.1	25.4	2 228.9	29.8	98
S17Y309-72	281	508	0.55	0.066 3	0.001 8	1.351 6	0.038 0	0.146 6	0.002 2	816.7	55.6	868.3	16.4	882.0	12.6	98
S17Y309-73	107	207	0.52	0.182 6	0.004 5	13.167 2	0.357 8	0.518 2	0.008 6	2 676.9	40.4	2 691.7	25.7	2 691.6	36.6	99
S17Y309-74	195	473	0.41	0.078 2	0.001 9	1.583 9	0.040 7	0.146 1	0.002 2	1 153.7	47.1	963.9	16.0	879.1	12.6	90
S17Y309-75	97	118	0.82	0.067 2	0.002 0	1.290 8	0.039 2	0.139 1	0.002 2	855.6	61.1	841.7	17.4	839.5	12.5	99
S17Y309-76	330	471	0.70	0.064 2	0.001 5	1.145 8	0.027 0	0.128 6	0.001 6	750.0	50.0	775.2	12.8	779.9	9.3	99
S17Y309-77	44	36	1.22	0.068 1	0.004 1	1.105 7	0.063 2	0.120 0	0.002 4	872.2	124.1	756.1	30.5	730.5	13.8	96
S17Y309-79	141	154	0.92	0.070 2	0.002 2	1.160 4	0.036 4	0.119 2	0.001 7	1 000.0	60.2	782.1	17.1	726.1	9.6	92
S17Y309-80	157	213	0.74	0.067 7	0.002 0	1.235 4	0.038 1	0.131 9	0.002 1	861.1	61.9	816.8	17.3	798.9	12.1	97
S17Y309-81	98	149	0.66	0.068 5	0.001 8	1.307 8	0.035 7	0.137 2	0.002 1	883.3	54.8	849.2	15.7	828.6	11.9	97
S17Y309-82	158	106	1.49	0.120 5	0.002 7	5.677 3	0.124 5	0.340 6	0.005 2	1 962.7	39.4	1 927.9	18.9	1 889.6	25.1	97
S17Y309-83	179	195	0.92	0.064 8	0.001 8	1.006 8	0.027 2	0.112 2	0.001 8	768.5	60.0	707.3	13.8	685.8	10.6	96
S17Y309-84	140	428	0.33	0.074 7	0.001 6	1.427 7	0.031 6	0.137 6	0.002 0	1 061.1	42.6	900.6	13.2	831.0	11.3	91
S17Y309-85	64	97	0.66	0.066 9	0.002 1	1.229 7	0.038 6	0.133 0	0.002 3	835.2	66.7	814.2	17.6	804.7	12.8	98
S17Y309-86	147	149	0.99	0.067 7	0.001 6	1.314 9	0.030 9	0.140 5	0.001 9	861.1	50.0	852.3	13.6	847.3	10.6	99
S17Y309-87	11	16	0.70	0.149 5	0.004 3	9.126 7	0.269 2	0.443 4	0.008 9	2 340.4	48.8	2 350.8	27.0	2 365.6	39.8	99
S17Y309-88	194	413	0.47	0.072 4	0.001 5	1.287 0	0.027 3	0.127 8	0.001 6	998.2	36.1	840.0	12.1	775.2	9.4	91
S17Y309-89	68	119	0.57	0.119 1	0.002 3	5.913 7	0.123 2	0.356 7	0.004 6	1 943.5	39.8	1 963.3	18.1	1 966.7	21.9	99
S17Y309-90	175	463	0.38	0.117 5	0.002 2	5.672 1	0.121 0	0.346 4	0.005 1	1 920.4	33.3	1 927.1	18.4	1 917.4	24.6	99
S17Y309-91	201	183	1.10	0.070 5	0.003 0	1.249 8	0.052 6	0.128 5	0.003 2	942.6	88.1	823.3	23.7	779.2	18.4	94
S17Y309-93	69	91	0.76	0.112 9	0.002 5	5.316 6	0.117 3	0.339 5	0.004 4	1 855.6	40.7	1 871.5	18.9	1 884.3	21.1	99
S17Y309-94	197	142	1.39	0.063 5	0.001 7	1.146 7	0.030 6	0.130 2	0.001 9	727.8	23.9	775.7	14.5	788.9	10.6	98
S17Y309-95	221	271	0.81	0.072 5	0.001 6	1.278 0	0.027 3	0.127 1	0.001 8	998.2	44.9	836.0	12.2	771.4	10.1	91
S17Y309-96	371	451	0.82	0.074 8	0.001 3	1.462 6	0.027 7	0.140 1	0.001 7	1 064.8	34.4	915.1	11.4	845.5	9.6	92
S17Y309-97	126	238	0.53	0.146 6	0.002 0	8.873 8	0.138 7	0.433 7	0.004 6	2 306.5	23.2	2 325.1	14.3	2 322.5	20.7	99
S17Y309-98	124	99	1.26	0.064 1	0.001 9	1.155 7	0.033 0	0.130 4	0.001 8	746.3	61.1	779.9	15.6	790.2	10.1	98
S17Y309-99	80	88	0.90	0.067 8	0.002 1	1.244 6	0.039 2	0.132 4	0.001 8	861.1	65.6	821.0	17.7	801.5	10.5	97
S17Y309-100	417	543	0.77	0.073 2	0.001 2	1.225 6	0.020 1	0.120 9	0.001 9	1 020.4	33.8	812.3	9.2	735.5	10.8	90
S17Y309-101	147	175	0.84	0.065 4	0.001 4	1.264 1	0.028 0	0.138 6	0.001 5	787.0	44.4	829.7	12.6	836.8	8.2	99
S17Y309-102	365	230	1.58	0.064 2	0.001 5	1.005 1	0.022 4	0.112 8	0.001 9	746.3	50.0	706.4	11.3	688.7	10.8	97
S17Y309-103	576	434	1.33	0.066 0	0.001 2	1.240 7	0.024 0	0.134 7	0.001 5	805.6	37.0	819.2	10.9	814.8	8.5	99
S17Y309-104	176	225	0.78	0.155 0	0.001 9	9.553 2	0.149 3	0.441 5	0.005 2	2 401.5	20.4	2 392.7	14.4	2 357.2	23.3	98
S17Y309-105	110	217	0.51	0.067 6	0.001 3	1.338 8	0.026 1	0.142 2	0.001 5	857.4	38.9	862.7	11.3	857.3	8.5	99
S17Y309-106	300	285	1.05	0.065 8	0.001 2	1.197 5	0.023 8	0.130 5	0.001 6	1 200.0	38.9	799.4	11.0	790.8	9.0	98
S17Y309-107	236	317	0.74	0.070 0	0.001 5	1.300 1	0.028 4	0.133 4	0.001 6	927.8	44.4	845.8	12.6	807.3	9.2	95
S17Y309-108	49	62	0.79	0.065 1	0.002 2	1.282 3	0.042 9	0.141 9	0.002 0	788.9	74.2	837.9	19.1	855.6	11.1	97
S17Y309-109	178	190	0.94	0.066 4	0.001 7	1.321 6	0.033 5	0.143 6	0.001 9	816.7	52.6	855.2	14.7	865.1	10.9	98