Discovery of Late Triassic Adakitic Rocks at Nianzishan in the Central Great Xing’an Range and Its Geological Significance

doi:10.19657/j.geoscience.1000-8527.2021.066

Abstract

Abstract:

Geochronology and geochemistry of the Early Mesozoic Nianzishan granites were studied to constrain the tectonic evolution in the Central Great Xing’an Range. The studied syenogranite and quartz monzonite samples show LA-ICP-MS zircon U-Pb ages of 225.6-228.9 Ma, indicating that they were both emplaced in the Late Triassic. Both rock types have similar adakitic geochemical, including high Al₂O₃ and Sr contents and Sr/Y and La/Yb ratios, low Y and Yb contents, HREE depletions and slightly negative Eu anomalies. However, the syenogranite has higher MgO, LREE, Cr, V, and Sr contents, and higher Sr/Y and K/Rb ratios than the quartz monzonite. Such differences are likely caused by their different petrogenesis: partial melting of thickened lower crust for the syenogranite and partial melting of a delaminated lower crust for the quartz monzonite. Combined with previous studies, we conclude that the Late Triassic Adakitic rocks at Nianzishan were formed in a compressional orogenic setting related to the collision of the Xing’an and Songnen blocks, which was overprinted by the south-dipping subduction of the Mongol-Okhotsk Ocean. The discovery of adakitic rocks by melting of delaminated lower crust indicates the potential for exploration of porphyry Cu-Mo deposits in the Nianzishan and adjacent area.

Key words: Adakite, zircon U-Pb age, geochemistry, Mongol-Okhotsk Ocean, Nianzishan area

CLC Number:

P588.1

FU Anzong, YANG Wenpeng, LIU Yuan, ZHAO Handong, WANG Guipeng, SHI Guoming, LI jinming, DENG Changzhou. Discovery of Late Triassic Adakitic Rocks at Nianzishan in the Central Great Xing’an Range and Its Geological Significance[J]. Geoscience, 2022, 36(01): 266-281.

Figures/Tables 13

References 63

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序号	样品编号	岩性	取样坐标	主要矿物组合
1	U-Pb3022 Gs3022	中细粒正长花岗岩	N47°38'17.2″,E122°45'46.1″	石英+钾长石+ 斜长石+黑云母
2	U-Pb3022 Gs3022	中细粒正长花岗岩	N47°38'17.2″,E122°45'46.1″
3	U-Pb2064-2 Gs2064-2	中细粒正长花岗岩	N47°39'16.5″,E122°55'07.7″
4	U-Pb2064-2 Gs2064-2	中细粒正长花岗岩	N47°39'16.5″,E122°55'07.7″
5	Gs3010	中细粒正长花岗岩	N47°39'41.4″,E122°45'14.5″
6	Gs4056		N47°39'22.2″,E122°54'29.4″
7	Gs4225		N47°33'50.9″,E122°53'53.4″
8	U-Pb8068 Gs8068	中细粒石英二长岩	N47°36'12.9″,E122°52'22.4″	斜长石+钾长石+石英+ 角闪石+黑云母
9	U-Pb8068 Gs8068	中细粒石英二长岩	N47°36'12.9″,E122°52'22.4″
10	Gs3132	中细粒石英二长岩	N47°36'58.6″,E122°54'22.8″

序号	样品编号	岩性	取样坐标	主要矿物组合
1	U-Pb3022 Gs3022	中细粒正长花岗岩	N47°38'17.2″,E122°45'46.1″	石英+钾长石+ 斜长石+黑云母
2	U-Pb3022 Gs3022	中细粒正长花岗岩	N47°38'17.2″,E122°45'46.1″
3	U-Pb2064-2 Gs2064-2	中细粒正长花岗岩	N47°39'16.5″,E122°55'07.7″
4	U-Pb2064-2 Gs2064-2	中细粒正长花岗岩	N47°39'16.5″,E122°55'07.7″
5	Gs3010	中细粒正长花岗岩	N47°39'41.4″,E122°45'14.5″
6	Gs4056		N47°39'22.2″,E122°54'29.4″
7	Gs4225		N47°33'50.9″,E122°53'53.4″
8	U-Pb8068 Gs8068	中细粒石英二长岩	N47°36'12.9″,E122°52'22.4″	斜长石+钾长石+石英+ 角闪石+黑云母
9	U-Pb8068 Gs8068	中细粒石英二长岩	N47°36'12.9″,E122°52'22.4″
10	Gs3132	中细粒石英二长岩	N47°36'58.6″,E122°54'22.8″

编号	点号	含量/10^-6			Th/U	同位素比值						同位素年龄/Ma
编号	点号	Pb	Th	U	Th/U	²⁰⁷Pb/²⁰⁶Pb	1σ	²⁰⁷Pb/²³⁵U	1σ	²⁰⁶Pb/²³⁸U	1σ	²⁰⁷Pb/²⁰⁶Pb	1σ	²⁰⁷Pb/²³⁵U	1σ	²⁰⁶Pb/²³⁸U	1σ
Ⅰ	1	14.0	139.6	187.1	0.75	0.050 9	0.001 4	0.252 4	0.009 2	0.036 0	0.001 2	234.4	62.0	228.5	7.5	227.9	7.3
	2	23.8	226.3	336.1	0.67	0.049 9	0.001 2	0.245 8	0.008 5	0.035 8	0.001 2	187.8	56.3	223.2	6.9	226.5	7.2
	3	42.7	400.3	600.7	0.67	0.049 5	0.001 1	0.246 5	0.008 2	0.036 1	0.001 2	172.8	50.9	223.8	6.6	228.6	7.3
	4	58.5	466.5	868.4	0.54	0.052 3	0.001 1	0.266 1	0.008 7	0.036 9	0.001 2	296.3	47.8	239.6	6.9	233.8	7.4
	5	111.5	1053.1	1086.0	0.97	0.049 0	0.001 0	0.266 1	0.008 6	0.039 4	0.001 3	149.9	48.3	239.6	6.9	248.8	7.9
	6	48.4	498.4	517.6	0.96	0.049 9	0.001 1	0.247 0	0.008 2	0.035 9	0.001 2	191.9	51.7	224.1	6.7	227.2	7.2
	7	43.7	399.6	609.1	0.66	0.049 9	0.001 1	0.250 3	0.008 3	0.036 4	0.001 2	188.2	50.7	226.8	6.7	230.6	7.3
	8	50.8	478.4	749.2	0.64	0.048 9	0.001 2	0.243 4	0.008 6	0.036 1	0.001 2	143.6	58.3	221.2	7.0	228.6	7.3
	9	28.1	246.8	449.4	0.55	0.048 7	0.001 2	0.242 1	0.008 2	0.036 0	0.001 2	135.5	54.3	220.1	6.7	228.1	7.2
	10	23.5	216.1	323.8	0.67	0.050 7	0.001 3	0.249 7	0.008 9	0.035 7	0.001 2	228.5	60.0	226.4	7.3	226.1	7.2
	11	25.0	337.0	304.8	1.11	0.050 6	0.001 2	0.248 0	0.008 5	0.035 5	0.001 1	224.6	54.5	225.0	6.9	225.0	7.1
	12	9.4	129.2	160.2	0.81	0.051 8	0.001 4	0.251 8	0.009 2	0.035 3	0.001 1	275.3	61.4	228.0	7.4	223.5	7.1
	13	29.7	381.0	345.9	1.10	0.049 7	0.001 2	0.255 2	0.008 6	0.037 2	0.001 2	182.8	53.5	230.8	7.0	235.6	7.4
	15	14.8	166.6	254.5	0.65	0.051 5	0.001 3	0.256 6	0.008 8	0.036 1	0.001 2	263.7	55.4	231.9	7.1	228.8	7.2
	16	11.2	144.5	174.5	0.83	0.052 2	0.001 8	0.252 6	0.010 6	0.035 1	0.001 2	295.8	77.8	228.7	8.6	222.2	7.2
	17	26.7	250.3	575.4	0.43	0.050 8	0.001 1	0.255 1	0.008 4	0.036 4	0.001 2	231.5	50.7	230.7	6.8	230.6	7.2
	18	16.1	167.1	338.5	0.49	0.052 2	0.001 2	0.254 7	0.008 6	0.035 4	0.001 1	293.3	52.6	230.4	6.9	224.3	7.1
	19	14.1	166.2	213.7	0.78	0.052 2	0.001 4	0.256 4	0.009 2	0.035 6	0.001 2	293.5	59.6	231.8	7.4	225.8	7.2
	20	40.3	484.5	542.7	0.89	0.049 9	0.001 2	0.250 3	0.008 4	0.036 4	0.001 2	190.0	52.9	226.8	6.8	230.5	7.2
Ⅱ	3	13.9	247.2	261.9	0.94	0.049 9	0.002 1	0.244 4	0.010 1	0.035 5	0.000 8	191.6	94.8	222.0	8.2	224.9	4.7
	4	19.3	255.2	308.8	0.83	0.053 5	0.001 5	0.261 3	0.007 2	0.035 4	0.000 7	350.5	62.0	235.7	5.8	224.4	4.4
	5	8.2	108.8	145.1	0.75	0.051 8	0.001 7	0.251 9	0.008 1	0.035 3	0.000 7	277.0	73.5	228.1	6.6	223.4	4.5
	6	20.6	299.9	435.2	0.69	0.050 9	0.001 2	0.247 7	0.005 9	0.035 3	0.000 7	234.6	54.8	224.7	4.8	223.7	4.4
	7	33.7	564.1	714.2	0.79	0.051 6	0.001 2	0.251 6	0.005 8	0.035 3	0.000 7	269.2	53.2	227.9	4.7	223.9	4.4
	8	18.8	316.8	346.4	0.91	0.054 5	0.001 5	0.264 2	0.007 2	0.035 2	0.000 7	390.4	61.2	238.0	5.8	222.9	4.4
	9	10.6	178.6	201.7	0.89	0.051 0	0.001 8	0.261 3	0.009 1	0.037 2	0.000 8	239.7	79.8	235.7	7.3	235.3	4.8
	10	40.4	818.4	757.0	1.08	0.051 6	0.001 7	0.243 2	0.007 7	0.034 2	0.000 7	268.3	72.7	221.0	6.3	216.6	4.4
	13	48.3	1341.9	783.5	1.71	0.052 3	0.001 9	0.257 4	0.009 3	0.035 7	0.000 7	298.1	81.6	232.6	7.5	226.2	4.6
	14	9.2	128.2	195.9	0.65	0.051 6	0.001 5	0.251 7	0.007 3	0.035 4	0.000 7	265.5	66.5	228.0	5.9	224.3	4.5
	15	10.6	164.7	149.6	1.10	0.054 1	0.002 3	0.264 3	0.011 0	0.035 5	0.000 8	372.9	92.0	238.1	8.8	224.7	4.8
	16	7.8	149.8	157.7	0.95	0.052 6	0.001 6	0.256 2	0.007 8	0.035 4	0.000 7	309.7	68.9	231.6	6.3	224.0	4.5
	17	12.2	155.7	232.7	0.67	0.049 7	0.001 5	0.245 9	0.007 4	0.035 9	0.000 7	181.4	69.9	223.2	6.0	227.2	4.6
	18	8.2	136.0	156.5	0.87	0.049 7	0.001 6	0.258 5	0.008 0	0.037 7	0.000 8	180.5	71.4	233.5	6.4	238.8	4.8
	20	7.3	113.1	154.5	0.73	0.052 4	0.001 9	0.259 8	0.009 0	0.036 0	0.000 8	301.7	78.6	234.5	7.3	227.8	4.7
Ⅲ	1	4.3	74.6	86.0	0.87	0.049 9	0.002 0	0.247 8	0.009 5	0.036 0	0.000 7	189.0	88.9	224.8	7.7	228.2	4.6
	2	8.9	115.2	184.5	0.62	0.048 2	0.001 6	0.243 2	0.007 6	0.036 6	0.000 7	107.1	74.2	221.1	6.2	231.9	4.6
	3	3.7	52.9	75.0	0.71	0.050 0	0.002 1	0.250 5	0.010 4	0.036 3	0.000 8	195.6	95.7	227.0	8.4	230.0	4.7
	4	3.5	56.5	70.4	0.80	0.051 0	0.002 7	0.254 6	0.013 2	0.036 3	0.000 8	238.4	117.6	230.3	10.7	229.5	4.9
	5	4.4	75.9	85.4	0.89	0.052 6	0.002 1	0.262 1	0.010 3	0.036 1	0.000 8	312.7	89.4	236.3	8.3	228.7	4.7
	6	4.2	67.9	84.3	0.81	0.049 5	0.002 1	0.242 6	0.009 9	0.035 6	0.000 7	169.6	94.6	220.6	8.1	225.4	4.6
	7	4.0	59.9	80.4	0.75	0.053 6	0.004 7	0.265 4	0.022 7	0.035 9	0.001 0	352.8	186.1	239.0	18.2	227.6	6.1
编号	点号	含量/10^-6			Th/U	同位素比值						同位素年龄/Ma
编号	点号	Pb	Th	U	Th/U	²⁰⁷Pb/²⁰⁶Pb	1σ	²⁰⁷Pb/²³⁵U	1σ	²⁰⁶Pb/²³⁸U	1σ	²⁰⁷Pb/²⁰⁶Pb	1σ	²⁰⁷Pb/²³⁵U	1σ	²⁰⁶Pb/²³⁸U	1σ
Ⅲ	9	3.5	49.2	72.5	0.68	0.049 7	0.002 1	0.244 3	0.010 0	0.035 7	0.000 7	180.1	94.4	221.9	8.1	225.9	4.6
	10	4.4	73.8	85.8	0.86	0.050 4	0.001 9	0.250 9	0.009 4	0.036 1	0.000 7	215.3	86.7	227.3	7.6	228.5	4.6
	11	4.0	57.6	83.8	0.69	0.051 3	0.002 2	0.252 2	0.010 4	0.035 7	0.000 7	252.3	94.4	228.3	8.5	226.0	4.6
	12	4.1	66.5	81.3	0.82	0.053 7	0.002 1	0.265 4	0.010 3	0.035 8	0.000 7	359.4	86.9	239.0	8.2	227.0	4.6
	13	3.0	47.1	58.5	0.80	0.052 8	0.002 5	0.260 8	0.012 0	0.035 8	0.000 8	319.3	103.2	235.3	9.6	227.0	4.8
	14	4.2	65.0	86.4	0.75	0.052 3	0.002 2	0.257 1	0.010 3	0.035 7	0.000 7	297.1	91.2	232.3	8.3	226.0	4.6
	15	3.4	49.5	68.7	0.72	0.050 3	0.002 1	0.252 0	0.010 4	0.036 4	0.000 8	206.7	95.0	228.2	8.4	230.3	4.7
	16	4.0	61.3	81.1	0.76	0.049 2	0.002 1	0.243 5	0.009 9	0.035 9	0.000 7	157.1	94.6	221.3	8.1	227.3	4.6
	17	3.2	50.5	64.0	0.79	0.052 5	0.002 3	0.262 1	0.011 2	0.036 2	0.000 8	305.9	96.4	236.4	9.0	229.4	4.7
	18	4.0	51.3	83.8	0.61	0.050 1	0.002 0	0.250 0	0.009 6	0.036 2	0.000 8	198.3	88.9	226.5	7.8	229.3	4.6
	19	3.0	37.6	62.3	0.60	0.052 4	0.004 1	0.258 3	0.019 6	0.035 7	0.000 9	303.6	167.3	233.3	15.8	226.3	5.6
	20	4.7	72.6	94.0	0.77	0.051 0	0.001 9	0.251 8	0.009 2	0.035 8	0.000 7	240.0	84.0	228.0	7.5	226.8	4.6

编号	点号	含量/10^-6			Th/U	同位素比值						同位素年龄/Ma
编号	点号	Pb	Th	U	Th/U	²⁰⁷Pb/²⁰⁶Pb	1σ	²⁰⁷Pb/²³⁵U	1σ	²⁰⁶Pb/²³⁸U	1σ	²⁰⁷Pb/²⁰⁶Pb	1σ	²⁰⁷Pb/²³⁵U	1σ	²⁰⁶Pb/²³⁸U	1σ
Ⅰ	1	14.0	139.6	187.1	0.75	0.050 9	0.001 4	0.252 4	0.009 2	0.036 0	0.001 2	234.4	62.0	228.5	7.5	227.9	7.3
	2	23.8	226.3	336.1	0.67	0.049 9	0.001 2	0.245 8	0.008 5	0.035 8	0.001 2	187.8	56.3	223.2	6.9	226.5	7.2
	3	42.7	400.3	600.7	0.67	0.049 5	0.001 1	0.246 5	0.008 2	0.036 1	0.001 2	172.8	50.9	223.8	6.6	228.6	7.3
	4	58.5	466.5	868.4	0.54	0.052 3	0.001 1	0.266 1	0.008 7	0.036 9	0.001 2	296.3	47.8	239.6	6.9	233.8	7.4
	5	111.5	1053.1	1086.0	0.97	0.049 0	0.001 0	0.266 1	0.008 6	0.039 4	0.001 3	149.9	48.3	239.6	6.9	248.8	7.9
	6	48.4	498.4	517.6	0.96	0.049 9	0.001 1	0.247 0	0.008 2	0.035 9	0.001 2	191.9	51.7	224.1	6.7	227.2	7.2
	7	43.7	399.6	609.1	0.66	0.049 9	0.001 1	0.250 3	0.008 3	0.036 4	0.001 2	188.2	50.7	226.8	6.7	230.6	7.3
	8	50.8	478.4	749.2	0.64	0.048 9	0.001 2	0.243 4	0.008 6	0.036 1	0.001 2	143.6	58.3	221.2	7.0	228.6	7.3
	9	28.1	246.8	449.4	0.55	0.048 7	0.001 2	0.242 1	0.008 2	0.036 0	0.001 2	135.5	54.3	220.1	6.7	228.1	7.2
	10	23.5	216.1	323.8	0.67	0.050 7	0.001 3	0.249 7	0.008 9	0.035 7	0.001 2	228.5	60.0	226.4	7.3	226.1	7.2
	11	25.0	337.0	304.8	1.11	0.050 6	0.001 2	0.248 0	0.008 5	0.035 5	0.001 1	224.6	54.5	225.0	6.9	225.0	7.1
	12	9.4	129.2	160.2	0.81	0.051 8	0.001 4	0.251 8	0.009 2	0.035 3	0.001 1	275.3	61.4	228.0	7.4	223.5	7.1
	13	29.7	381.0	345.9	1.10	0.049 7	0.001 2	0.255 2	0.008 6	0.037 2	0.001 2	182.8	53.5	230.8	7.0	235.6	7.4
	15	14.8	166.6	254.5	0.65	0.051 5	0.001 3	0.256 6	0.008 8	0.036 1	0.001 2	263.7	55.4	231.9	7.1	228.8	7.2
	16	11.2	144.5	174.5	0.83	0.052 2	0.001 8	0.252 6	0.010 6	0.035 1	0.001 2	295.8	77.8	228.7	8.6	222.2	7.2
	17	26.7	250.3	575.4	0.43	0.050 8	0.001 1	0.255 1	0.008 4	0.036 4	0.001 2	231.5	50.7	230.7	6.8	230.6	7.2
	18	16.1	167.1	338.5	0.49	0.052 2	0.001 2	0.254 7	0.008 6	0.035 4	0.001 1	293.3	52.6	230.4	6.9	224.3	7.1
	19	14.1	166.2	213.7	0.78	0.052 2	0.001 4	0.256 4	0.009 2	0.035 6	0.001 2	293.5	59.6	231.8	7.4	225.8	7.2
	20	40.3	484.5	542.7	0.89	0.049 9	0.001 2	0.250 3	0.008 4	0.036 4	0.001 2	190.0	52.9	226.8	6.8	230.5	7.2
Ⅱ	3	13.9	247.2	261.9	0.94	0.049 9	0.002 1	0.244 4	0.010 1	0.035 5	0.000 8	191.6	94.8	222.0	8.2	224.9	4.7
	4	19.3	255.2	308.8	0.83	0.053 5	0.001 5	0.261 3	0.007 2	0.035 4	0.000 7	350.5	62.0	235.7	5.8	224.4	4.4
	5	8.2	108.8	145.1	0.75	0.051 8	0.001 7	0.251 9	0.008 1	0.035 3	0.000 7	277.0	73.5	228.1	6.6	223.4	4.5
	6	20.6	299.9	435.2	0.69	0.050 9	0.001 2	0.247 7	0.005 9	0.035 3	0.000 7	234.6	54.8	224.7	4.8	223.7	4.4
	7	33.7	564.1	714.2	0.79	0.051 6	0.001 2	0.251 6	0.005 8	0.035 3	0.000 7	269.2	53.2	227.9	4.7	223.9	4.4
	8	18.8	316.8	346.4	0.91	0.054 5	0.001 5	0.264 2	0.007 2	0.035 2	0.000 7	390.4	61.2	238.0	5.8	222.9	4.4
	9	10.6	178.6	201.7	0.89	0.051 0	0.001 8	0.261 3	0.009 1	0.037 2	0.000 8	239.7	79.8	235.7	7.3	235.3	4.8
	10	40.4	818.4	757.0	1.08	0.051 6	0.001 7	0.243 2	0.007 7	0.034 2	0.000 7	268.3	72.7	221.0	6.3	216.6	4.4
	13	48.3	1341.9	783.5	1.71	0.052 3	0.001 9	0.257 4	0.009 3	0.035 7	0.000 7	298.1	81.6	232.6	7.5	226.2	4.6
	14	9.2	128.2	195.9	0.65	0.051 6	0.001 5	0.251 7	0.007 3	0.035 4	0.000 7	265.5	66.5	228.0	5.9	224.3	4.5
	15	10.6	164.7	149.6	1.10	0.054 1	0.002 3	0.264 3	0.011 0	0.035 5	0.000 8	372.9	92.0	238.1	8.8	224.7	4.8
	16	7.8	149.8	157.7	0.95	0.052 6	0.001 6	0.256 2	0.007 8	0.035 4	0.000 7	309.7	68.9	231.6	6.3	224.0	4.5
	17	12.2	155.7	232.7	0.67	0.049 7	0.001 5	0.245 9	0.007 4	0.035 9	0.000 7	181.4	69.9	223.2	6.0	227.2	4.6
	18	8.2	136.0	156.5	0.87	0.049 7	0.001 6	0.258 5	0.008 0	0.037 7	0.000 8	180.5	71.4	233.5	6.4	238.8	4.8
	20	7.3	113.1	154.5	0.73	0.052 4	0.001 9	0.259 8	0.009 0	0.036 0	0.000 8	301.7	78.6	234.5	7.3	227.8	4.7
Ⅲ	1	4.3	74.6	86.0	0.87	0.049 9	0.002 0	0.247 8	0.009 5	0.036 0	0.000 7	189.0	88.9	224.8	7.7	228.2	4.6
	2	8.9	115.2	184.5	0.62	0.048 2	0.001 6	0.243 2	0.007 6	0.036 6	0.000 7	107.1	74.2	221.1	6.2	231.9	4.6
	3	3.7	52.9	75.0	0.71	0.050 0	0.002 1	0.250 5	0.010 4	0.036 3	0.000 8	195.6	95.7	227.0	8.4	230.0	4.7
	4	3.5	56.5	70.4	0.80	0.051 0	0.002 7	0.254 6	0.013 2	0.036 3	0.000 8	238.4	117.6	230.3	10.7	229.5	4.9
	5	4.4	75.9	85.4	0.89	0.052 6	0.002 1	0.262 1	0.010 3	0.036 1	0.000 8	312.7	89.4	236.3	8.3	228.7	4.7
	6	4.2	67.9	84.3	0.81	0.049 5	0.002 1	0.242 6	0.009 9	0.035 6	0.000 7	169.6	94.6	220.6	8.1	225.4	4.6
	7	4.0	59.9	80.4	0.75	0.053 6	0.004 7	0.265 4	0.022 7	0.035 9	0.001 0	352.8	186.1	239.0	18.2	227.6	6.1
编号	点号	含量/10^-6			Th/U	同位素比值						同位素年龄/Ma
编号	点号	Pb	Th	U	Th/U	²⁰⁷Pb/²⁰⁶Pb	1σ	²⁰⁷Pb/²³⁵U	1σ	²⁰⁶Pb/²³⁸U	1σ	²⁰⁷Pb/²⁰⁶Pb	1σ	²⁰⁷Pb/²³⁵U	1σ	²⁰⁶Pb/²³⁸U	1σ
Ⅲ	9	3.5	49.2	72.5	0.68	0.049 7	0.002 1	0.244 3	0.010 0	0.035 7	0.000 7	180.1	94.4	221.9	8.1	225.9	4.6
	10	4.4	73.8	85.8	0.86	0.050 4	0.001 9	0.250 9	0.009 4	0.036 1	0.000 7	215.3	86.7	227.3	7.6	228.5	4.6
	11	4.0	57.6	83.8	0.69	0.051 3	0.002 2	0.252 2	0.010 4	0.035 7	0.000 7	252.3	94.4	228.3	8.5	226.0	4.6
	12	4.1	66.5	81.3	0.82	0.053 7	0.002 1	0.265 4	0.010 3	0.035 8	0.000 7	359.4	86.9	239.0	8.2	227.0	4.6
	13	3.0	47.1	58.5	0.80	0.052 8	0.002 5	0.260 8	0.012 0	0.035 8	0.000 8	319.3	103.2	235.3	9.6	227.0	4.8
	14	4.2	65.0	86.4	0.75	0.052 3	0.002 2	0.257 1	0.010 3	0.035 7	0.000 7	297.1	91.2	232.3	8.3	226.0	4.6
	15	3.4	49.5	68.7	0.72	0.050 3	0.002 1	0.252 0	0.010 4	0.036 4	0.000 8	206.7	95.0	228.2	8.4	230.3	4.7
	16	4.0	61.3	81.1	0.76	0.049 2	0.002 1	0.243 5	0.009 9	0.035 9	0.000 7	157.1	94.6	221.3	8.1	227.3	4.6
	17	3.2	50.5	64.0	0.79	0.052 5	0.002 3	0.262 1	0.011 2	0.036 2	0.000 8	305.9	96.4	236.4	9.0	229.4	4.7
	18	4.0	51.3	83.8	0.61	0.050 1	0.002 0	0.250 0	0.009 6	0.036 2	0.000 8	198.3	88.9	226.5	7.8	229.3	4.6
	19	3.0	37.6	62.3	0.60	0.052 4	0.004 1	0.258 3	0.019 6	0.035 7	0.000 9	303.6	167.3	233.3	15.8	226.3	5.6
	20	4.7	72.6	94.0	0.77	0.051 0	0.001 9	0.251 8	0.009 2	0.035 8	0.000 7	240.0	84.0	228.0	7.5	226.8	4.6

样品编号	岩性	SiO₂	TiO₂	Al₂O₃	Fe₂O₃	FeO	MnO	MgO	CaO	Na₂O	K₂O	P₂O₅	烧失量	总量	A/CNK
Gs3022	正长花岗岩	71.12	0.28	14.69	1.72	0.53	0.04	0.41	0.89	4.48	3.98	0.09	1.18	99.41	1.10
Gs3010	正长花岗岩	71.34	0.26	15.11	1.82	0.43	0.04	0.35	0.47	4.05	4.00	0.09	1.48	99.44	1.28
Gs2064-2	正长花岗岩	70.78	0.29	14.42	1.37	0.95	0.04	0.60	1.16	3.84	3.91	0.08	1.76	99.20	1.14
Gs4056	正长花岗岩	71.76	0.30	14.33	1.71	0.71	0.05	0.60	0.67	4.25	4.06	0.09	1.12	99.65	1.14
Gs4225	正长花岗岩	72.24	0.31	13.14	1.67	0.72	0.07	0.43	1.86	3.86	3.93	0.09	1.42	99.74	0.94
Gs3132	石英二长岩	64.84	0.60	15.54	3.38	0.53	0.06	1.77	2.43	4.71	3.15	0.18	2.46	99.65	1.00
Gs8068	石英二长岩	62.68	0.66	15.65	1.54	2.95	0.07	2.72	3.33	4.51	3.09	0.2	2.22	99.62	0.93
样品编号	岩性	Na₂O/K₂O	Mg^#	Sc	V	Cr	Ga	Rb	Sr	Y	Nb	Cs	Ba	La	Ce
Gs3022	正长花岗岩	1.13	29.26	4.28	28.6	4.50	16.50	111	410.0	09.6	08.9	1.87	857	23.20	43.50
Gs3010	正长花岗岩	1.01	26.18	4.47	28.5	6.80	18.60	130	239.0	11.3	10.3	5.25	729	23.10	46.30
Gs2064-2	正长花岗岩	0.98	36.53	4.24	25.9	6.90	17.30	132	269.0	10.7	10.5	5.39	687	29.40	54.80
Gs4056	正长花岗岩	1.05	35.96	3.77	33.5	7.46	16.84	121	426.2	13.0	09.7	1.87	916	18.75	47.08
Gs4225	正长花岗岩	0.98	28.86	3.47	28.3	7.36	15.59	067	248.6	14.4	12.8	0.80	764	14.91	38.39
Gs3132	石英二长岩	1.50	50.89	9.52	87.0	70.38	20.09	074	827.9	14.20	07.9	2.26	908	26.54	62.67
Gs8068	石英二长岩	1.46	56.81	9.48	96.2	79.84	18.98	059	823.0	15.3	08.2	1.68	888	24.62	57.62
样品编号	岩性	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Zr	Hf
Gs3022	正长花岗岩	4.75	17.60	3.12	0.74	2.27	0.37	1.82	0.36	0.92	0.17	0.94	0.18	122	5.7
Gs3010	正长花岗岩	5.04	18.70	3.21	0.70	2.39	0.35	1.98	0.40	1.18	0.19	1.25	0.21	153	6.0
Gs2064-2	正长花岗岩	5.62	20.50	3.47	0.76	2.50	0.37	2.04	0.38	1.04	0.17	1.08	0.17	130	5.1
Gs4056	正长花岗岩	4.76	17.79	2.98	0.64	2.44	0.35	1.90	0.39	0.97	0.14	1.03	0.15	150	5.2
Gs4225	正长花岗岩	4.93	18.96	3.37	0.70	2.77	0.42	2.41	0.50	1.30	0.20	1.46	0.21	168	4.1
Gs3132	石英二长岩	7.48	29.71	5.06	1.19	3.96	0.51	2.65	0.53	1.31	0.19	1.36	0.20	179	5.2
Gs8068	石英二长岩	6.86	27.98	4.87	1.17	3.90	0.52	2.75	0.56	1.41	0.21	1.49	0.22	184	5.5
样品编号	岩性	Ta	Th	U	δEu	LREE	HREE	LREE/HREE		REE	Sr/Y	La/Yb	K/Rb	(La/Yb)_N
Gs3022	正长花岗岩	0.87	14.19	1.24	0.81	092.9	07.03	13.21		109.49	42.93	24.68	297.66	16.63
Gs3010	正长花岗岩	0.94	15.37	1.56	0.74	097.1	07.95	12.21		116.30	21.15	18.48	255.43	12.46
Gs2064-2	正长花岗岩	0.90	16.32	1.65	0.75	115.0	07.75	14.84		133.00	25.14	27.22	245.90	18.34
Gs4056	正长花岗岩	1.36	14.77	2.08	0.70	092.0	07.37	12.48		112.37	32.78	18.20	278.55	12.27
Gs4225	正长花岗岩	1.04	07.05	2.41	0.68	081.3	09.27	08.77		104.93	17.26	10.21	486.94	06.88
Gs3132	石英二长岩	0.49	11.90	3.01	0.79	133.0	10.70	12.43		157.56	58.30	19.51	353.38	13.15
Gs8068	石英二长岩	0.59	8.12	2.55	0.80	123.0	11.10	11.08		149.48	53.79	16.52	434.78	11.14