Petrological Characteristics and Petrogenetic Significance of Mesozoic Xiaodaqingshan Granite in Jining Area, Inner Mongolia

doi:10.19657/j.geoscience.1000-8527.2024.027

Abstract

Abstract:

The Mesozoic magmatic rocks in the middle segment of the northern margin of the North China Craton have complex petrological characteristics, and there are divergent understandings on the formation of granites, which restricts the in-depth understanding of petrogenetic dynamics. In this paper, the Mesozoic Xiaodaqingshan granite pluton in Inner Mongolia, located in this tectonic belt, is selected as the research object. Studies on petrography, zircon U-Pb dating, whole-rock element composition, and Sr-Nd-Pb isotope composition are carried out to explain the genesis and source properties of the magmatic rocks, and to further discuss the Mesozoic tectonic dynamic environment in the study area. The results show that the weighted average ²⁰⁶Pb/²³⁸U age of zircons from monzogranite is (135.4±1.2) Ma, indicating that the host granites formed in the Early Cretaceous. The rocks are characterized by high silica (73.37%-77.21%), high alkali (5.93%-8.78%), and high aluminum saturation index (1.02-1.32), belonging to the peraluminous high-K calc-alkaline series. They are enriched in large ion lithophile elements (Rb, K) and high field strength elements (Th, U), depleted in Nb, Ba, Sr, Ti, and P; enriched in light rare earth elements and depleted in Eu; with low (⁸⁷Sr/⁸⁶Sr)_i values (0.7094-0.7391), highly negative ε_Nd(t) values (-15.37 to -16.19), ²⁰⁶Pb/²⁰⁴Pb ratios of 17.158-17.365, ²⁰⁷Pb/²⁰⁴Pb ratios of 15.437-15.442, and ²⁰⁸Pb/²⁰⁴Pb ratios of 37.881-38.082. Comprehensive geochemical characteristics indicate that the Xiaodaqingshan granite is a highly differentiated I-type granite, mainly derived from partial melting of lower crustal materials. Combined with regional geological evidence, it is considered that the Xiaodaqingshan granite in Jining area, Inner Mongolia, formed in the post-orogenic stage, and its formation may be controlled by the combined effects of the closure of the Mongolia-Okhotsk Ocean basin and the subduction of the Paleo-Pacific Plate.

Key words: zircon U-Pb dating, geochemistry, Jining area, Mongolia-Okhotsk Ocean, Paleo-Pacific Ocean

CLC Number:

P581

WU Jiangwei, HU Hao, ZHANG Fuchen, NIU Yi, ZHOU Zhiguang, ZHANG Da. Petrological Characteristics and Petrogenetic Significance of Mesozoic Xiaodaqingshan Granite in Jining Area, Inner Mongolia[J]. Geoscience, 2025, 39(04): 995-1015.

Figures/Tables 20

References 88

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样品号	元素含量(10^-6)			Th/U	同位素比值及误差					年龄及误差(Ma)
样品号	Pb	U	Th	Th/U	²⁰⁶Pb/²³⁸U		²⁰⁷Pb/²³⁵U		²⁰⁷Pb/²⁰⁶Pb	²⁰⁶Pb/²³⁸U	²⁰⁷Pb/²³⁵U	²⁰⁷Pb/²⁰⁶Pb
PM73-16TW1-01	1	20	44	2.14	0.0206±0.0007	0.1456±0.0527		0.0512±0.0196		132±5	138±50	248±880
PM73-16TW1-02	3	118	146	1.23	0.0213±0.0002	0.1443±0.0073		0.0492±0.0025		136±1	137±7	159±119
PM73-16TW1-03	4	123	121	0.99	0.0254±0.0005	0.1774±0.0100		0.0507±0.0025		162±3	166±9	226±115
PM73-16TW1-04	20	761	851	1.12	0.0226±0.0002	0.1536±0.0028		0.0493±0.0009		144±1	145±3	164±40
PM73-16TW1-05	10	353	321	0.91	0.0237±0.0004	0.1628±0.0053		0.0499±0.0013		151±2	153±5	189±61
PM73-16TW1-06	5	174	204	1.17	0.0218±0.0002	0.1503±0.0059		0.0500±0.0020		139±1	142±6	194±92
PM73-16TW1-07	7	228	247	1.09	0.0251±0.0003	0.1729±0.0050		0.0500±0.0013		160±2	162±5	194±62
PM73-16TW1-08	3	138	114	0.83	0.0209±0.0006	0.1448±0.0170		0.0502±0.0050		133±4	137±16	206±232
PM73-16TW1-09	4	159	170	1.07	0.0214±0.0002	0.1458±0.0044		0.0495±0.0015		136±1	138±4	171±70
PM73-16TW1-10	5	193	179	0.93	0.0214±0.0002	0.1459±0.0048		0.0494±0.0015		137±1	138±5	167±73
PM73-16TW1-11	10	382	457	1.19	0.0210±0.0002	0.1400±0.0031		0.0484±0.0010		134±1	133±3	120±50
PM73-16TW1-12	2	66	84	1.28	0.0217±0.0003	0.1485±0.0123		0.0497±0.0042		138±2	141±12	181±198
PM73-16TW1-13	2	86	97	1.12	0.0216±0.0003	0.1474±0.0098		0.0495±0.0034		138±2	140±9	174±158
PM73-16TW1-14	10	378	506	1.34	0.0212±0.0002	0.1430±0.0032		0.0490±0.0011		135±1	136±3	149±52
PM73-16TW1-15	6	230	256	1.11	0.0210±0.0002	0.1432±0.0041		0.0495±0.0014		134±1	136±4	173±65
PM73-16TW1-16	3	130	130	1.00	0.0209±0.0003	0.1414±0.0087		0.0490±0.0030		134±2	134±8	147±142
PM73-16TW1-17	2	65	132	2.04	0.0206±0.0004	0.1386±0.0115		0.0487±0.0041		132±2	132±11	133±199
PM73-16TW1-18	2	68	82	1.22	0.0230±0.0003	0.1576±0.0118		0.0497±0.0039		147±2	149±11	180±181
PM72-14TW1-01	8	317	405	1.28	0.0202±0.0003	0.1424±0.1170		0.0511±0.0040		129±2	135±11	245±180
PM72-14TW1-02	10	398	487	1.22	0.0208±0.0001	0.1395±0.0027		0.0487±0.0009		133±1	133±3	131±46
PM72-14TW1-03	2	42	129	3.04	0.0209±0.0004	0.1445±0.0160		0.0503±0.0055		133±3	137±15	207±255
PM72-14TW1-04	14	580	561	0.97	0.0206±0.0002	0.1441±0.0029		0.0508±0.0010		131±1	137±3	230±45
PM72-14TW1-05	3	130	148	1.14	0.0214±0.0002	0.1466±0.0062		0.0497±0.0021		136±1	139±6	181±98
PM72-14TW1-06	34	1756	1882	1.07	0.0165±0.0003	0.1153±0.0033		0.0506±0.0018		106±2	111±3	221±81
PM72-14TW1-07	3	82	338	4.14	0.0207±0.0003	0.1410±0.0062		0.0494±0.0024		132±2	134±6	168±112
PM72-14TW1-08	2	65	104	1.61	0.0224±0.0004	0.1567±0.0161		0.0507±0.0052		143±3	148±15	229±236
PM72-14TW1-09	1	24	43	1.8	0.0210±0.0005	0.1402±0.0299		0.0484±0.0102		134±4	133±28	117±496
PM72-14TW1-10	1	31	52	1.67	0.0245±0.0005	0.1699±0.0237		0.0503±0.0067		156±3	159±22	210±309
PM72-14TW1-11	5	200	219	1.09	0.0210±0.0003	0.1486±0.0121		0.0514±0.0038		134±2	141±11	257±168
PM72-14TW1-12	6	225	239	1.06	0.0213±0.0002	0.1432±0.0041		0.0488±0.0014		136±1	136±4	138±67
PM72-14TW1-13	15	348	1294	3.72	0.0207±0.0002	0.1393±0.0026		0.0489±0.0008		132±1	132±3	144±38
PM72-14TW1-14	3	124	138	1.12	0.0206±0.0003	0.1414±0.0101		0.0499±0.0036		131±2	134±10	190±170
PM72-14TW1-15	5	181	270	1.49	0.0207±0.0002	0.1432±0.0055		0.0502±0.0019		132±1	136±5	206±90
PM72-14TW1-16	3	101	126	1.25	0.0214±0.0002	0.1433±0.0087		0.0485±0.0029		137±1	136±8	123±143
PM72-14TW1-17	10	380	738	1.94	0.0186±0.0002	0.1321±0.0055		0.0515±0.0021		119±1	126±5	262±96
PM72-14TW1-18	4	155	173	1.12	0.0208±0.0002	0.1425±0.0056		0.0497±0.0020		133±1	135±5	181±94
PM72-14TW1-19	20	789	1124	1.42	0.0188±0.0003	0.1266±0.0047		0.0487±0.0021		120±2	121±5	136±101
PM72-14TW1-20	7	284	235	0.83	0.0210±0.0002	0.1414±0.0038		0.0488±0.0014		134±1	134±4	139±65
PM72-16TW1-01	1	53	80	1.51	0.0208±0.0004	0.1414±0.0141		0.0494±0.0051		133±3	134±13	165±240
PM72-16TW1-02	1	54	79	1.46	0.0207±0.0004	0.1426±0.0158		0.0501±0.0055		132±3	135±15	198±255
PM72-16TW1-03	2	79	100	1.26	0.0210±0.0002	0.1404±0.0073		0.0484±0.0026		134±2	133±7	118±125
PM72-16TW1-04	2	92	91	0.98	0.0204±0.0002	0.1378±0.0120		0.0491±0.0041		130±2	131±11	151±195
PM72-16TW1-05	4	156	135	0.87	0.0206±0.0002	0.1397±0.0049		0.0491±0.0017		132±1	133±5	152±81
PM72-16TW1-06	3	152	124	0.82	0.0203±0.0002	0.1391±0.0085		0.0498±0.0028		129±1	132±8	185±130
PM72-16TW1-07	2	107	111	1.03	0.0203±0.0002	0.1379±0.0055		0.0493±0.0019		129±1	131±5	164±92
PM72-16TW1-08	3	111	101	0.91	0.0206±0.0003	0.1379±0.0074		0.0485±0.0025		132±2	131±7	124±123
PM72-16TW1-09	5	201	164	0.82	0.0204±0.0002	0.1403±0.0038		0.0499±0.0013		130±1	133±4	190±59
PM72-16TW1-10	11	449	425	0.95	0.0209±0.0002	0.1408±0.0030		0.0489±0.0009		133±2	134±3	144±45
PM72-16TW1-11	5	199	241	1.21	0.0211±0.0002	0.1444±0.0054		0.0496±0.0016		135±1	137±5	177±77
PM72-16TW1-12	8	269	590	2.19	0.0206±0.0002	0.1418±0.0032		0.0500±0.0011		131±1	135±3	193±51
PM72-16TW1-13	3	138	102	0.74	0.0198±0.0002	0.1333±0.0048		0.0488±0.0018		126±1	127±5	138±87
PM72-16TW1-14	3	151	121	0.80	0.0206±0.0003	0.1426±0.0064		0.0502±0.0023		131±2	135±6	205±104
PM72-16TW1-15	2	68	99	1.44	0.0205±0.0003	0.1434±0.0079		0.0506±0.0028		131±2	136±7	224±129
PM72-16TW1-16	5	184	203	1.11	0.0212±0.0002	0.1441±0.0053		0.0494±0.0019		135±1	137±5	165±90
PM72-16TW1-17	4	177	154	0.87	0.0197±0.0006	0.1351±0.0163		0.0498±0.0060		126±4	129±15	185±280
PM72-16TW1-18	5	158	438	2.77	0.0197±0.0004	0.1366±0.0110		0.0502±0.0037		126±2	130±10	204±171
PM72-16TW1-19	15	679	1013	1.49	0.0168±0.0001	0.1166±0.0084		0.0504±0.0036		107±1	112±8	215±165
PM72-16TW1-20	5	224	306	1.36	0.0193±0.0003	0.1301±0.0069		0.0488±0.0026		124±2	124±7	137±125
PM73-02TW1-01	244	3042	2602	0.86	0.0192±0.0003	0.9138±0.0171		0.3448±0.0036		123±2	659±12	3684±16
PM73-02TW1-02	8	283	303	1.07	0.0208±0.0003	0.1422±0.0044		0.0497±0.0020		132±2	135±4	181±93
PM73-02TW1-03	21	537	407	0.76	0.0180±0.0005	0.1235±0.0035		0.0498±0.0012		115±3	118±3	186±55
PM73-02TW1-04	2	63	124	1.98	0.0192±0.0004	0.1331±0.0160		0.0502±0.0065		123±3	127±15	203±299
PM73-02TW1-05	254	3069	3797	1.24	0.0214±0.0004	1.1609±0.0218		0.3927±0.0044		137±2	782±15	3881±17
PM73-02TW1-06	10	402	350	0.87	0.0203±0.0005	0.1400±0.0129		0.0500±0.0043		130±3	133±12	193±200
PM73-02TW1-07	22	782	512	0.66	0.0232±0.0003	0.1590±0.0046		0.0498±0.0013		148±2	150±4	184±62
PM73-02TW1-08	28	960	1155	1.20	0.0213±0.0003	0.1434±0.0051		0.0488±0.0019		136±2	136±5	137±90
PM73-02TW1-09	223	2754	3050	1.11	0.0181±0.0005	0.9511±0.0274		0.3807±0.0056		116±3	679±20	3835±22
PM73-02TW1-10	19	825	707	0.86	0.0190±0.0005	0.1319±0.0121		0.0504±0.0042		121±3	126±11	213±195
PM73-02TW1-11	7	194	229	1.18	0.0199±0.0005	0.5794±0.0285		0.2113±0.0087		127±3	464±23	2916±67
PM73-02TW1-12	100	1652	1716	1.04	0.0205±0.0002	0.7776±0.0098		0.2753±0.0042		131±2	584±7	3336±24
PM73-02TW1-13	4	148	249	1.68	0.0189±0.0006	0.1263±0.0112		0.0485±0.0041		121±4	121±11	125±201
PM73-02TW1-14	2	81	125	1.54	0.0205±0.0003	0.1397±0.0105		0.0494±0.0039		131±2	133±10	168±187
PM73-02TW1-15	21	885	813	0.92	0.0192±0.0003	0.1342±0.0052		0.0506±0.0015		123±2	128±5	224±69
PM73-02TW1-16	8	327	305	0.93	0.0198±0.0003	0.1351±0.0056		0.0494±0.0020		127±2	129±5	168±94
PM73-02TW1-17	9	381	431	1.13	0.0193±0.0005	0.1292±0.0075		0.0485±0.0029		123±3	123±7	122±143
PM73-02TW1-18	36	1326	899	0.68	0.0190±0.0002	0.2046±0.0069		0.0781±0.0023		121±1	189±6	1149±57

样品号	元素含量(10^-6)			Th/U	同位素比值及误差					年龄及误差(Ma)
样品号	Pb	U	Th	Th/U	²⁰⁶Pb/²³⁸U		²⁰⁷Pb/²³⁵U		²⁰⁷Pb/²⁰⁶Pb	²⁰⁶Pb/²³⁸U	²⁰⁷Pb/²³⁵U	²⁰⁷Pb/²⁰⁶Pb
PM73-16TW1-01	1	20	44	2.14	0.0206±0.0007	0.1456±0.0527		0.0512±0.0196		132±5	138±50	248±880
PM73-16TW1-02	3	118	146	1.23	0.0213±0.0002	0.1443±0.0073		0.0492±0.0025		136±1	137±7	159±119
PM73-16TW1-03	4	123	121	0.99	0.0254±0.0005	0.1774±0.0100		0.0507±0.0025		162±3	166±9	226±115
PM73-16TW1-04	20	761	851	1.12	0.0226±0.0002	0.1536±0.0028		0.0493±0.0009		144±1	145±3	164±40
PM73-16TW1-05	10	353	321	0.91	0.0237±0.0004	0.1628±0.0053		0.0499±0.0013		151±2	153±5	189±61
PM73-16TW1-06	5	174	204	1.17	0.0218±0.0002	0.1503±0.0059		0.0500±0.0020		139±1	142±6	194±92
PM73-16TW1-07	7	228	247	1.09	0.0251±0.0003	0.1729±0.0050		0.0500±0.0013		160±2	162±5	194±62
PM73-16TW1-08	3	138	114	0.83	0.0209±0.0006	0.1448±0.0170		0.0502±0.0050		133±4	137±16	206±232
PM73-16TW1-09	4	159	170	1.07	0.0214±0.0002	0.1458±0.0044		0.0495±0.0015		136±1	138±4	171±70
PM73-16TW1-10	5	193	179	0.93	0.0214±0.0002	0.1459±0.0048		0.0494±0.0015		137±1	138±5	167±73
PM73-16TW1-11	10	382	457	1.19	0.0210±0.0002	0.1400±0.0031		0.0484±0.0010		134±1	133±3	120±50
PM73-16TW1-12	2	66	84	1.28	0.0217±0.0003	0.1485±0.0123		0.0497±0.0042		138±2	141±12	181±198
PM73-16TW1-13	2	86	97	1.12	0.0216±0.0003	0.1474±0.0098		0.0495±0.0034		138±2	140±9	174±158
PM73-16TW1-14	10	378	506	1.34	0.0212±0.0002	0.1430±0.0032		0.0490±0.0011		135±1	136±3	149±52
PM73-16TW1-15	6	230	256	1.11	0.0210±0.0002	0.1432±0.0041		0.0495±0.0014		134±1	136±4	173±65
PM73-16TW1-16	3	130	130	1.00	0.0209±0.0003	0.1414±0.0087		0.0490±0.0030		134±2	134±8	147±142
PM73-16TW1-17	2	65	132	2.04	0.0206±0.0004	0.1386±0.0115		0.0487±0.0041		132±2	132±11	133±199
PM73-16TW1-18	2	68	82	1.22	0.0230±0.0003	0.1576±0.0118		0.0497±0.0039		147±2	149±11	180±181
PM72-14TW1-01	8	317	405	1.28	0.0202±0.0003	0.1424±0.1170		0.0511±0.0040		129±2	135±11	245±180
PM72-14TW1-02	10	398	487	1.22	0.0208±0.0001	0.1395±0.0027		0.0487±0.0009		133±1	133±3	131±46
PM72-14TW1-03	2	42	129	3.04	0.0209±0.0004	0.1445±0.0160		0.0503±0.0055		133±3	137±15	207±255
PM72-14TW1-04	14	580	561	0.97	0.0206±0.0002	0.1441±0.0029		0.0508±0.0010		131±1	137±3	230±45
PM72-14TW1-05	3	130	148	1.14	0.0214±0.0002	0.1466±0.0062		0.0497±0.0021		136±1	139±6	181±98
PM72-14TW1-06	34	1756	1882	1.07	0.0165±0.0003	0.1153±0.0033		0.0506±0.0018		106±2	111±3	221±81
PM72-14TW1-07	3	82	338	4.14	0.0207±0.0003	0.1410±0.0062		0.0494±0.0024		132±2	134±6	168±112
PM72-14TW1-08	2	65	104	1.61	0.0224±0.0004	0.1567±0.0161		0.0507±0.0052		143±3	148±15	229±236
PM72-14TW1-09	1	24	43	1.8	0.0210±0.0005	0.1402±0.0299		0.0484±0.0102		134±4	133±28	117±496
PM72-14TW1-10	1	31	52	1.67	0.0245±0.0005	0.1699±0.0237		0.0503±0.0067		156±3	159±22	210±309
PM72-14TW1-11	5	200	219	1.09	0.0210±0.0003	0.1486±0.0121		0.0514±0.0038		134±2	141±11	257±168
PM72-14TW1-12	6	225	239	1.06	0.0213±0.0002	0.1432±0.0041		0.0488±0.0014		136±1	136±4	138±67
PM72-14TW1-13	15	348	1294	3.72	0.0207±0.0002	0.1393±0.0026		0.0489±0.0008		132±1	132±3	144±38
PM72-14TW1-14	3	124	138	1.12	0.0206±0.0003	0.1414±0.0101		0.0499±0.0036		131±2	134±10	190±170
PM72-14TW1-15	5	181	270	1.49	0.0207±0.0002	0.1432±0.0055		0.0502±0.0019		132±1	136±5	206±90
PM72-14TW1-16	3	101	126	1.25	0.0214±0.0002	0.1433±0.0087		0.0485±0.0029		137±1	136±8	123±143
PM72-14TW1-17	10	380	738	1.94	0.0186±0.0002	0.1321±0.0055		0.0515±0.0021		119±1	126±5	262±96
PM72-14TW1-18	4	155	173	1.12	0.0208±0.0002	0.1425±0.0056		0.0497±0.0020		133±1	135±5	181±94
PM72-14TW1-19	20	789	1124	1.42	0.0188±0.0003	0.1266±0.0047		0.0487±0.0021		120±2	121±5	136±101
PM72-14TW1-20	7	284	235	0.83	0.0210±0.0002	0.1414±0.0038		0.0488±0.0014		134±1	134±4	139±65
PM72-16TW1-01	1	53	80	1.51	0.0208±0.0004	0.1414±0.0141		0.0494±0.0051		133±3	134±13	165±240
PM72-16TW1-02	1	54	79	1.46	0.0207±0.0004	0.1426±0.0158		0.0501±0.0055		132±3	135±15	198±255
PM72-16TW1-03	2	79	100	1.26	0.0210±0.0002	0.1404±0.0073		0.0484±0.0026		134±2	133±7	118±125
PM72-16TW1-04	2	92	91	0.98	0.0204±0.0002	0.1378±0.0120		0.0491±0.0041		130±2	131±11	151±195
PM72-16TW1-05	4	156	135	0.87	0.0206±0.0002	0.1397±0.0049		0.0491±0.0017		132±1	133±5	152±81
PM72-16TW1-06	3	152	124	0.82	0.0203±0.0002	0.1391±0.0085		0.0498±0.0028		129±1	132±8	185±130
PM72-16TW1-07	2	107	111	1.03	0.0203±0.0002	0.1379±0.0055		0.0493±0.0019		129±1	131±5	164±92
PM72-16TW1-08	3	111	101	0.91	0.0206±0.0003	0.1379±0.0074		0.0485±0.0025		132±2	131±7	124±123
PM72-16TW1-09	5	201	164	0.82	0.0204±0.0002	0.1403±0.0038		0.0499±0.0013		130±1	133±4	190±59
PM72-16TW1-10	11	449	425	0.95	0.0209±0.0002	0.1408±0.0030		0.0489±0.0009		133±2	134±3	144±45
PM72-16TW1-11	5	199	241	1.21	0.0211±0.0002	0.1444±0.0054		0.0496±0.0016		135±1	137±5	177±77
PM72-16TW1-12	8	269	590	2.19	0.0206±0.0002	0.1418±0.0032		0.0500±0.0011		131±1	135±3	193±51
PM72-16TW1-13	3	138	102	0.74	0.0198±0.0002	0.1333±0.0048		0.0488±0.0018		126±1	127±5	138±87
PM72-16TW1-14	3	151	121	0.80	0.0206±0.0003	0.1426±0.0064		0.0502±0.0023		131±2	135±6	205±104
PM72-16TW1-15	2	68	99	1.44	0.0205±0.0003	0.1434±0.0079		0.0506±0.0028		131±2	136±7	224±129
PM72-16TW1-16	5	184	203	1.11	0.0212±0.0002	0.1441±0.0053		0.0494±0.0019		135±1	137±5	165±90
PM72-16TW1-17	4	177	154	0.87	0.0197±0.0006	0.1351±0.0163		0.0498±0.0060		126±4	129±15	185±280
PM72-16TW1-18	5	158	438	2.77	0.0197±0.0004	0.1366±0.0110		0.0502±0.0037		126±2	130±10	204±171
PM72-16TW1-19	15	679	1013	1.49	0.0168±0.0001	0.1166±0.0084		0.0504±0.0036		107±1	112±8	215±165
PM72-16TW1-20	5	224	306	1.36	0.0193±0.0003	0.1301±0.0069		0.0488±0.0026		124±2	124±7	137±125
PM73-02TW1-01	244	3042	2602	0.86	0.0192±0.0003	0.9138±0.0171		0.3448±0.0036		123±2	659±12	3684±16
PM73-02TW1-02	8	283	303	1.07	0.0208±0.0003	0.1422±0.0044		0.0497±0.0020		132±2	135±4	181±93
PM73-02TW1-03	21	537	407	0.76	0.0180±0.0005	0.1235±0.0035		0.0498±0.0012		115±3	118±3	186±55
PM73-02TW1-04	2	63	124	1.98	0.0192±0.0004	0.1331±0.0160		0.0502±0.0065		123±3	127±15	203±299
PM73-02TW1-05	254	3069	3797	1.24	0.0214±0.0004	1.1609±0.0218		0.3927±0.0044		137±2	782±15	3881±17
PM73-02TW1-06	10	402	350	0.87	0.0203±0.0005	0.1400±0.0129		0.0500±0.0043		130±3	133±12	193±200
PM73-02TW1-07	22	782	512	0.66	0.0232±0.0003	0.1590±0.0046		0.0498±0.0013		148±2	150±4	184±62
PM73-02TW1-08	28	960	1155	1.20	0.0213±0.0003	0.1434±0.0051		0.0488±0.0019		136±2	136±5	137±90
PM73-02TW1-09	223	2754	3050	1.11	0.0181±0.0005	0.9511±0.0274		0.3807±0.0056		116±3	679±20	3835±22
PM73-02TW1-10	19	825	707	0.86	0.0190±0.0005	0.1319±0.0121		0.0504±0.0042		121±3	126±11	213±195
PM73-02TW1-11	7	194	229	1.18	0.0199±0.0005	0.5794±0.0285		0.2113±0.0087		127±3	464±23	2916±67
PM73-02TW1-12	100	1652	1716	1.04	0.0205±0.0002	0.7776±0.0098		0.2753±0.0042		131±2	584±7	3336±24
PM73-02TW1-13	4	148	249	1.68	0.0189±0.0006	0.1263±0.0112		0.0485±0.0041		121±4	121±11	125±201
PM73-02TW1-14	2	81	125	1.54	0.0205±0.0003	0.1397±0.0105		0.0494±0.0039		131±2	133±10	168±187
PM73-02TW1-15	21	885	813	0.92	0.0192±0.0003	0.1342±0.0052		0.0506±0.0015		123±2	128±5	224±69
PM73-02TW1-16	8	327	305	0.93	0.0198±0.0003	0.1351±0.0056		0.0494±0.0020		127±2	129±5	168±94
PM73-02TW1-17	9	381	431	1.13	0.0193±0.0005	0.1292±0.0075		0.0485±0.0029		123±3	123±7	122±143
PM73-02TW1-18	36	1326	899	0.68	0.0190±0.0002	0.2046±0.0069		0.0781±0.0023		121±1	189±6	1149±57

样品号	SiO₂		TiO₂		Al₂O₃		Fe₂O₃		FeO		MnO		MgO		CaO		Na₂O		K₂O		P₂O₅		CO₂		H₂O⁺		烧失量
PM73-5	75.56		0.13		13.24		0.51		0.27		0.02		0.21		0.68		3.20		5.00		0.06		0.14		0.56		0.78
PM73-6	73.37		0.14		14.36		0.25		0.43		0.03		0.24		0.62		3.43		5.35		0.06		0.26		1.09		0.66
PM73-8	77.21		0.19		12.20		0.45		0.44		0.02		0.27		0.47		3.19		4.21		0.06		0.21		0.80		0.63
PM73-10	74.83		0.16		13.33		0.20		0.37		0.03		0.18		0.59		3.50		5.24		0.02		0.21		0.87		0.51
PM72-3	76.50		0.19		11.04		2.20		0.56		0.02		0.28		0.35		2.27		3.66		0.04		0.27		1.21		1.28
PM73-12	76.80		0.09		12.30		0.41		0.27		0.03		0.13		0.63		3.70		4.41		0.01		0.17		0.40		0.69
PM73-13	76.13		0.08		12.80		0.39		0.22		0.03		0.14		0.53		3.99		4.44		0.01		0.12		0.57		0.54
PM73-14	76.36		0.08		12.72		0.27		0.29		0.02		0.15		0.50		3.97		4.52		0.01		0.21		0.87		0.50
PM73-15	76.53		0.08		12.29		0.25		0.28		0.01		0.13		0.50		3.58		4.59		0.01		0.17		1.07		0.61
PM73-18	75.81		0.08		12.90		0.60		0.35		0.02		0.11		0.24		4.09		4.42		0.01		0.10		0.91		0.50
PM73-2	75.82		0.09		13.04		0.22		0.51		0.06		0.21		0.24		3.42		4.19		0.05		0.15		0.85		0.87
样品号	总量		A/CNK		DI		SI		Rb		Sr		Ba		Th		U		Nb		Ta		Zr		Hf		Ga
PM73-5	100.36		1.11		93.96		2.29		321		97.60		352.0		16.3		3.36		23.3		2.65		79.6		2.93		17.8
PM73-6	100.27		1.14		93.89		2.45		349		106.00		317.0		15.9		2.73		24.5		2.81		91.0		3.51		20.2
PM73-8	100.35		1.14		94.59		3.16		259		63.60		237.0		25.9		1.78		39.9		4.51		123.0		4.73		18.2
PM73-10	100.04		1.06		95.20		1.88		338		48.00		152.0		32.1		3.93		34.5		3.02		133.0		5.56		19.9
PM72-3	99.85		1.32		91.30		3.13		279		42.30		283.0		20.7		2.81		40.9		2.43		119.0		4.16		20.6
PM73-12	100.03		1.02		95.57		1.46		416		8.95		24.9		44.8		6.81		45.5		2.92		103.0		5.99		23.6
PM73-13	99.98		1.04		95.87		1.51		432		7.23		23.0		37.6		4.39		50.0		3.78		89.0		5.50		23.3
PM73-14	100.45		1.03		96.35		1.61		442		6.62		17.8		37.0		6.87		65.5		5.41		92.1		5.96		22.6
PM73-15	100.09		1.04		96.19		1.46		451		8.53		38.7		42.0		2.82		61.8		4.28		127.0		6.94		23.3
PM73-18	100.13		1.08		96.48		1.14		413		6.29		30.9		35.8		2.32		56.1		4.38		102.0		6.23		23.2
PM73-2	99.71		1.23		94.80		2.43		461		25.40		84.0		10.7		2.86		43.7		5.62		39.9		2.54		23.2
样品号	Ti		La		Ce		Pr		Nd		Sm		Eu		Gd		Tb		Ni		Co		Er		Tm		Yb
PM73-5	919		32.1		60.8		6.49		25.3		4.24		0.54		3.31		0.53		0.68		0.92		1.47		0.24		1.69
PM73-6	938		29.4		54.1		5.84		23.4		4.01		0.59		3.09		0.51		1.13		1.30		1.46		0.23		1.60
PM73-8	1167		49.3		87.1		9.63		36.0		5.73		0.57		4.63		0.77		1.16		0.83		2.95		0.47		3.10
PM73-10	937		45.5		92.8		9.22		32.6		4.70		0.42		3.43		0.60		0.52		0.51		2.52		0.45		3.19
PM72-3	1125		45.8		79.7		8.31		31.0		4.40		0.43		3.14		0.51		1.66		13.60		1.86		0.31		2.20
PM73-12	533		30.8		59.3		6.26		23.3		4.20		0.15		4.22		0.82		0.52		0.22		4.02		0.68		4.69
PM73-13	500		27.2		52.8		5.56		21.5		3.42		0.12		2.87		0.54		0.35		0.30		2.47		0.42		2.97
PM73-14	556		32.2		62.1		6.4		22.8		4.10		0.11		3.64		0.65		0.25		0.22		2.98		0.51		3.45
PM73-15	513		32.6		59.9		6.2		22.8		4.36		0.13		4.04		0.76		0.05		0.20		3.51		0.6		4.25
PM73-18	517		27.2		52.5		5.98		22.1		4.10		0.15		3.68		0.65		1.04		0.54		2.23		0.37		2.47
PM73-2	566		14.9		26.6		3.23		11.2		2.65		0.24		2.61		0.52		1.21		0.81		1.91		0.33		2.44
样品号	Lu	Sc		Y		Cr		Sn		Sb		Pb		δEu		ΣREE		(La/Yb)_N		Te₁		Te₃		Te_1,3		M		T_Zr(℃)
PM73-5	0.25	3.68		17.7		2.56		2.16		0.08		37.2		0.42		140.21		13.62		0.96		1.05		1.01		1.18		744
PM73-6	0.25	4.05		17.1		4.32		2.49		0.11		44.0		0.49		127.62		13.18		0.94		1.06		0.99		1.18		755
PM73-8	0.49	4.36		27.2		2.49		2.21		0.08		13.9		0.33		206.09		11.41		0.95		1.01		0.98		1.11		784
PM73-10	0.49	4.55		24.4		6.56		2.16		<0.05		32.5		0.31		200.24		10.23		1.05		1.01		1.03		1.24		782
PM72-3	0.35	14.10		19.5		2.56		3.36		0.14		10.5		0.11		145.55		4.71		0.99		1.06		1.03		0.94		794
PM73-12	0.71	5.86		42.7		0.78		2.04		0.07		24.1		0.11		124.34		6.57		0.98		1.05		1.01		1.25		760
PM73-13	0.45	7.21		28.6		0.84		1.89		0.06		35.3		0.09		144.27		6.69		1.02		1.02		1.02		1.24		748
PM73-14	0.53	5.51		34.9		0.93		2.05		0.09		33.3		0.09		145.44		5.50		0.98		1.04		1.01		1.25		751
PM73-15	0.64	5.42		39.1		1.48		1.29		0.14		18.1		0.12		126.23		7.90		1.00		1.06		1.03		1.23		779
PM73-18	0.36	4.79		23.7		2.25		7.16		0.25		36.1		0.34		181.42		14.93		0.94		0.99		0.96		1.19		763
PM73-2	0.36	5.85		19.5		3.19		3.86		0.10		10.5		0.28		70.52		4.38		0.99		1.13		1.06		1.05		699

样品号	SiO₂		TiO₂		Al₂O₃		Fe₂O₃		FeO		MnO		MgO		CaO		Na₂O		K₂O		P₂O₅		CO₂		H₂O⁺		烧失量
PM73-5	75.56		0.13		13.24		0.51		0.27		0.02		0.21		0.68		3.20		5.00		0.06		0.14		0.56		0.78
PM73-6	73.37		0.14		14.36		0.25		0.43		0.03		0.24		0.62		3.43		5.35		0.06		0.26		1.09		0.66
PM73-8	77.21		0.19		12.20		0.45		0.44		0.02		0.27		0.47		3.19		4.21		0.06		0.21		0.80		0.63
PM73-10	74.83		0.16		13.33		0.20		0.37		0.03		0.18		0.59		3.50		5.24		0.02		0.21		0.87		0.51
PM72-3	76.50		0.19		11.04		2.20		0.56		0.02		0.28		0.35		2.27		3.66		0.04		0.27		1.21		1.28
PM73-12	76.80		0.09		12.30		0.41		0.27		0.03		0.13		0.63		3.70		4.41		0.01		0.17		0.40		0.69
PM73-13	76.13		0.08		12.80		0.39		0.22		0.03		0.14		0.53		3.99		4.44		0.01		0.12		0.57		0.54
PM73-14	76.36		0.08		12.72		0.27		0.29		0.02		0.15		0.50		3.97		4.52		0.01		0.21		0.87		0.50
PM73-15	76.53		0.08		12.29		0.25		0.28		0.01		0.13		0.50		3.58		4.59		0.01		0.17		1.07		0.61
PM73-18	75.81		0.08		12.90		0.60		0.35		0.02		0.11		0.24		4.09		4.42		0.01		0.10		0.91		0.50
PM73-2	75.82		0.09		13.04		0.22		0.51		0.06		0.21		0.24		3.42		4.19		0.05		0.15		0.85		0.87
样品号	总量		A/CNK		DI		SI		Rb		Sr		Ba		Th		U		Nb		Ta		Zr		Hf		Ga
PM73-5	100.36		1.11		93.96		2.29		321		97.60		352.0		16.3		3.36		23.3		2.65		79.6		2.93		17.8
PM73-6	100.27		1.14		93.89		2.45		349		106.00		317.0		15.9		2.73		24.5		2.81		91.0		3.51		20.2
PM73-8	100.35		1.14		94.59		3.16		259		63.60		237.0		25.9		1.78		39.9		4.51		123.0		4.73		18.2
PM73-10	100.04		1.06		95.20		1.88		338		48.00		152.0		32.1		3.93		34.5		3.02		133.0		5.56		19.9
PM72-3	99.85		1.32		91.30		3.13		279		42.30		283.0		20.7		2.81		40.9		2.43		119.0		4.16		20.6
PM73-12	100.03		1.02		95.57		1.46		416		8.95		24.9		44.8		6.81		45.5		2.92		103.0		5.99		23.6
PM73-13	99.98		1.04		95.87		1.51		432		7.23		23.0		37.6		4.39		50.0		3.78		89.0		5.50		23.3
PM73-14	100.45		1.03		96.35		1.61		442		6.62		17.8		37.0		6.87		65.5		5.41		92.1		5.96		22.6
PM73-15	100.09		1.04		96.19		1.46		451		8.53		38.7		42.0		2.82		61.8		4.28		127.0		6.94		23.3
PM73-18	100.13		1.08		96.48		1.14		413		6.29		30.9		35.8		2.32		56.1		4.38		102.0		6.23		23.2
PM73-2	99.71		1.23		94.80		2.43		461		25.40		84.0		10.7		2.86		43.7		5.62		39.9		2.54		23.2
样品号	Ti		La		Ce		Pr		Nd		Sm		Eu		Gd		Tb		Ni		Co		Er		Tm		Yb
PM73-5	919		32.1		60.8		6.49		25.3		4.24		0.54		3.31		0.53		0.68		0.92		1.47		0.24		1.69
PM73-6	938		29.4		54.1		5.84		23.4		4.01		0.59		3.09		0.51		1.13		1.30		1.46		0.23		1.60
PM73-8	1167		49.3		87.1		9.63		36.0		5.73		0.57		4.63		0.77		1.16		0.83		2.95		0.47		3.10
PM73-10	937		45.5		92.8		9.22		32.6		4.70		0.42		3.43		0.60		0.52		0.51		2.52		0.45		3.19
PM72-3	1125		45.8		79.7		8.31		31.0		4.40		0.43		3.14		0.51		1.66		13.60		1.86		0.31		2.20
PM73-12	533		30.8		59.3		6.26		23.3		4.20		0.15		4.22		0.82		0.52		0.22		4.02		0.68		4.69
PM73-13	500		27.2		52.8		5.56		21.5		3.42		0.12		2.87		0.54		0.35		0.30		2.47		0.42		2.97
PM73-14	556		32.2		62.1		6.4		22.8		4.10		0.11		3.64		0.65		0.25		0.22		2.98		0.51		3.45
PM73-15	513		32.6		59.9		6.2		22.8		4.36		0.13		4.04		0.76		0.05		0.20		3.51		0.6		4.25
PM73-18	517		27.2		52.5		5.98		22.1		4.10		0.15		3.68		0.65		1.04		0.54		2.23		0.37		2.47
PM73-2	566		14.9		26.6		3.23		11.2		2.65		0.24		2.61		0.52		1.21		0.81		1.91		0.33		2.44
样品号	Lu	Sc		Y		Cr		Sn		Sb		Pb		δEu		ΣREE		(La/Yb)_N		Te₁		Te₃		Te_1,3		M		T_Zr(℃)
PM73-5	0.25	3.68		17.7		2.56		2.16		0.08		37.2		0.42		140.21		13.62		0.96		1.05		1.01		1.18		744
PM73-6	0.25	4.05		17.1		4.32		2.49		0.11		44.0		0.49		127.62		13.18		0.94		1.06		0.99		1.18		755
PM73-8	0.49	4.36		27.2		2.49		2.21		0.08		13.9		0.33		206.09		11.41		0.95		1.01		0.98		1.11		784
PM73-10	0.49	4.55		24.4		6.56		2.16		<0.05		32.5		0.31		200.24		10.23		1.05		1.01		1.03		1.24		782
PM72-3	0.35	14.10		19.5		2.56		3.36		0.14		10.5		0.11		145.55		4.71		0.99		1.06		1.03		0.94		794
PM73-12	0.71	5.86		42.7		0.78		2.04		0.07		24.1		0.11		124.34		6.57		0.98		1.05		1.01		1.25		760
PM73-13	0.45	7.21		28.6		0.84		1.89		0.06		35.3		0.09		144.27		6.69		1.02		1.02		1.02		1.24		748
PM73-14	0.53	5.51		34.9		0.93		2.05		0.09		33.3		0.09		145.44		5.50		0.98		1.04		1.01		1.25		751
PM73-15	0.64	5.42		39.1		1.48		1.29		0.14		18.1		0.12		126.23		7.90		1.00		1.06		1.03		1.23		779
PM73-18	0.36	4.79		23.7		2.25		7.16		0.25		36.1		0.34		181.42		14.93		0.94		0.99		0.96		1.19		763
PM73-2	0.36	5.85		19.5		3.19		3.86		0.10		10.5		0.28		70.52		4.38		0.99		1.13		1.06		1.05		699

样品号	岩石类型	Rb	Sr	⁸⁷Rb/⁸⁶Sr	⁸⁷Sr/⁸⁶Sr	±2σ	(⁸⁷Sr/⁸⁶Sr)_i	Nd	Sm	¹⁴⁷Sm/¹⁴⁴Nd
样品号	岩石类型	(10^-6)		⁸⁷Rb/⁸⁶Sr	⁸⁷Sr/⁸⁶Sr	±2σ	(⁸⁷Sr/⁸⁶Sr)_i	(10^-6)		¹⁴⁷Sm/¹⁴⁴Nd
PM73-02	似斑状细粒二长花岗岩(123 Ma)	461	25.4	53.1500	0.832021	0.000015	0.73911	11.2	2.65	0.143016648
PM73-08	(多斑)似斑状黑云二长花岗岩(133 Ma)	259	63.6	11.8100	0.731758	0.000013	0.70943	36.0	5.70	0.096207883
PM73-13	细中粒黑云二长花岗岩(135 Ma)	432	7.23	178.8366	1.060217	0.000014	0.71706	21.5	3.42	0.096149222
样品号	岩石类型	¹⁴³Nd/¹⁴⁴Nd		±2σ	(¹⁴³Nd/¹⁴⁴Nd)_i	f_Sm/Nd	ε_Nd(0)	ε_Nd(t)	T_DM	T_2DM
PM73-02	似斑状细粒二长花岗岩(123Ma)	0.511765		0.000009	0.51165	-0.27	-17.0	-16.2	2973	2233
PM73-08	(多斑)似斑状黑云二长花岗岩(133Ma)	0.511763		0.000009	0.511679	-0.51	-17.1	-15.4	1797	2174
PM73-13	细中粒黑云二长花岗岩(135Ma)	0.511759		0.000009	0.511674	-0.51	-17.1	-15.4	1802	2180