广西右江褶皱带东南缘西大明山矿集区燕山期酸性岩浆锆石U-Pb年龄、Hf同位素和Ce(IV)/Ce(III)特征

doi:10.19657/j.geoscience.1000-8527.2018.02.08

现代地质 ›› 2018, Vol. 32 ›› Issue (02): 289-304.DOI: 10.19657/j.geoscience.1000-8527.2018.02.08

广西右江褶皱带东南缘西大明山矿集区燕山期酸性岩浆锆石U-Pb年龄、Hf同位素和Ce(IV)/Ce(III)特征

肖昌浩¹^,²(), 申玉科¹(), 韦昌山¹, 苏晓凯¹^,², 乐兴文³, 张亮²

1.中国地质科学院地质力学研究所动力成岩成矿实验室,北京 100081
2.中国地质大学(北京) 地球科学与资源学院,北京 100083
3.广西壮族自治区第四地质队,广西南宁 530031

收稿日期:2017-07-12 修回日期:2018-01-11 出版日期:2018-04-10 发布日期:2018-05-07
通讯作者: 申玉科,男,副研究员,1966年出生,地质力学专业,从事矿田构造研究工作。Email:yk_s705@126.com。
作者简介:肖昌浩,男,助理研究员,1986年出生,矿床学与矿床地球化学专业,主要从事矿床学研究。 Email:xiaochanghao1986@126.com。
基金资助:
国家自然科学基金项目(41702095);中国地质调查局项目(DD20160053);国土资源部公益性行业科研专项项目(201411024-3)

LA-ICP-MS Zircon U-Pb Dating,Hf Isotopic Composition and Ce⁴⁺/Ce³⁺ Characteristics of the Yanshanian Acid Magma in the Xidamingshan Cluster,Southeastern Margin of the Youjiang Fold Belt,Guangxi

XIAO Changhao¹^,²(), SHEN Yuke¹(), WEI Changshan¹, SU Xiaokai¹^,², LE Xingwen³, ZHANG Liang²

1. Laboratory of Dynamic Digenesis and Metallogenesis,Institute of Geomechanics,Chinese Academy of Geological Sciences,Beijing 100081,China
2. School of Earth Sciences and Resources,China University of Geosciences,Beijing 100083,China
3. Geological Team No.4 of Guangxi Zhuang Autonomic Region,Nanning,Guangxi 530031,China

Received:2017-07-12 Revised:2018-01-11 Online:2018-04-10 Published:2018-05-07

摘要/Abstract

摘要：

广西西大明山多金属矿集区位于右江褶皱带东南缘。LA-ICP-MS锆石 U-Pb定年结果显示,区内那宁石英斑岩脉、罗维隐伏二长花岗岩和黑云母花岗岩岩体的侵位年龄分别为(93.11±0.64)Ma、(92.92±0.69)Ma和(92.5±1.1)Ma,说明三者都形成于晚白垩世。Hf同位素组成结果显示,石英斑岩中锆石ε_Hf(t)值变化于-18.4~-1.2之间,两阶段模式年龄变化于1 236~2 326 Ma之间。二长花岗岩和黑云母花岗岩锆石ε_Hf(t)值分别为-19.4~+0.3和-12.2~-3.6,两阶段模式年龄分别变化于1 139~2 385 Ma和1 386~1 933 Ma,表明它们主要来源于中元古代末期增生的地壳组分与少量古元古代地壳地质的共同熔融。通过与右江褶皱带周缘岩浆岩带锆石Hf同位素特征对比,认为右江褶皱带周缘岩浆岩可能具有一致的物源。二长花岗岩和黑云母花岗岩中锆石的Ce(IV)/Ce(Ⅲ)比值平均值分别为23.65和33.76,说明罗维隐伏岩体具有较低的氧逸度。通过对比右江褶皱带周缘前人的成矿年代学及同位素研究,显示该区成岩成矿时间较短(92~95 Ma),形成于晚白垩世区域伸展构造体制下,右江褶皱带岩石圈发生松弛和伸展垮塌,导致中元古代和少量古元古代地壳发生部分熔融,形成大规模岩浆作用。结合右江褶皱带周缘岩浆带大地构造位置及成岩时代,认为右江褶皱带燕山期岩浆岩的形成可能受到太平洋构造域和特提斯构造域双重作用,可能以后者为主。

关键词: 锆石U-Pb测年, Hf同位素, 燕山晚期, 西大明山矿集区, 右江褶皱带

Abstract:

The Xidamingshan cluster is located along the southeastern margin of the Youjiang fold belt,South China. LA-ICP-MS zircon U-Pb dating constrains the crystallization of the quartz porphyry,monzogranite and biotite granite at (93.11±0.64) Ma,(92.92±0.69) Ma and (92.5±1.1) Ma,respectively.They have the same ages with each other within errors,suggesting they are magmatism coevally emplaced during the Later Cretaceous.The ε_Hf(t) values of the quartz porphyry vary from -18.4 to -1.2 with an average value of -7.1,with two-stage model Hf ages (T_DM2) of 1 236 to 2 326 Ma with an average value of 1 609 Ma. And the values of the monzogranites and biotite granite are from -19.4 to +0.3 with an average value of -5.6 and -12.2 to -3.6 with an average value of -6.7,correspond to two-stage model Hf ages (T_DM2) of 1 139 to 2 385 Ma and 1 386 to 1 933 Ma,respectively.It indicates that the source material was derived from the partial melting of the Paleo-and Mesoproterozoic crust.Comparing with Hf isotopic characteristics of the Yan-shanian granites in the boundary of the Youjiang fold belt,we suggest that all of the granites may have the same magma sources.The average Ce(Ⅳ)/Ce(Ⅲ) ratios of monzogranite and biotite granite are 23.65 and 33.76,respectively.It suggests that the Luowei concealed intrusion is with low oxygen fugacity.Combined the results from this study coupled with previous research,we proposed that the magmas formed in a regional extensional setting along the southeastern margin of the Youjiang fold belt in the South China during the Later Cretaceous.This caused the partial melting of the Paleo-and Mesoproterozoic crust due to the lithosphere relaxation and collapse,which meanwhile resulted in the large-scale magmatism in the Xidamingshan cluster.In the light of tectonic settings and geochronology,we deduct that the Yanshanian granites along the margin of the Youjiang fold belt are related to both Pacific and Tethyan tectonic domain.

Key words: zircon U-Pb dating, Hf isotopic composition, Late Yanshanian, Xidamingshan cluster, Youjiang fold belt

中图分类号:

P588.1
P597

肖昌浩, 申玉科, 韦昌山, 苏晓凯, 乐兴文, 张亮. 广西右江褶皱带东南缘西大明山矿集区燕山期酸性岩浆锆石U-Pb年龄、Hf同位素和Ce(IV)/Ce(III)特征[J]. 现代地质, 2018, 32(02): 289-304.

XIAO Changhao, SHEN Yuke, WEI Changshan, SU Xiaokai, LE Xingwen, ZHANG Liang. LA-ICP-MS Zircon U-Pb Dating,Hf Isotopic Composition and Ce⁴⁺/Ce³⁺ Characteristics of the Yanshanian Acid Magma in the Xidamingshan Cluster,Southeastern Margin of the Youjiang Fold Belt,Guangxi[J]. Geoscience, 2018, 32(02): 289-304.

图/表 8

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岩石	样号		La			Ce		Pr		Nd		Sm		Eu		Gd		Tb		Dy		Ho		Er		Tm		Yb		Lu		Th		U		Hf		Ce⁴⁺/Ce³⁺
ZK 31901 黑云母二长花岗岩 (LW 01)	LW01-01		0027.16			00428.11		0019.24		00132.85		00183.32		28.06		395.59		00125.08		1 388.57		478.92		1 936.7		472.92		4 343.8		0728.2		10 503.8		7 507.6		31 766.6		10.10
	LW01-02		0.05			93.81		0.77		13.57		56.66		8.73		260.91		121.81		1 676.95		665.36		3 080.5		765.79		7 654.4		1 311.0		2 010.0		6 834.1		35 806.8		87.13
	LW01-03		99.44			713.79		45.90		239.99		224.47		24.75		514.17		167.61		1 795.72		596.17		2 404.6		532.78		4 773.7		782.6		9 782.1		6 035.7		27 848.9		8.02
	LW01-04		7.60			226.27		4.81		38.79		97.95		14.06		371.41		148.35		1 848.48		687.15		3 034.6		688.01		6 411.3		1 070.3		5 936.7		9 621.0		34 213.3		34.43
	LW01-05		48.29			823.44		31.48		252.79		332.64		41.82		841.67		264.89		2 798.96		907.18		3 661.1		781.32		6 998.3		1 153.6		14 011.8		6 960.3		26 947.0		11.10
	LW01-06		7.69			42.77		5.01		33.90		81.77		5.36		294.85		115.12		1 369.88		491.52		2 174.0		509.49		4 935.9		845.8		2 141.4		7 180.8		35 462.7		6.48
	LW01-07		36.76			48.61		20.55		65.44		52.09		3.43		200.65		86.29		1 232.81		476.63		2 263.7		583.92		5 962.0		1 086.5		1 296.7		12 055.4		36 178.2		2.92
	LW01-08		0.00			24.66		0.78		19.16		76.06		2.83		331.33		147.47		1 862.69		703.38		3 162.6		752.75		7 322.7		1 229.2		3 158.4		12 950.5		34 385.0		20.38
	LW01-09		1.59			95.61		1.66		16.35		54.44		4.24		270.82		110.33		1 512.45		556.65		2 531.1		635.86		6 233.4		1 092.5		2 817.6		12 751.9		35 852.4		54.36
	LW01-10		5.45			511.16		11.90		71.30		134.51		21.37		490.27		161.96		1 967.96		706.90		3 077.4		725.47		7 097.5		1 189.8		8 150.5		9 980.8		23 306.7		31.14
	LW01-11		16.82			173.91		177.43		406.76		173.53		22.60		394.46		160.50		1 856.22		615.61		2 677.9		674.76		6 687.3		1 118.4		2 973.2		12 428.5		36 338.5		0.01
	LW01-12		7.74			76.87		5.87		36.29		71.00		9.58		286.99		136.22		1 844.75		721.98		3 518.2		899.45		9 388.4		1 606.5		2 828.0		18 094.5		36 784.7		14.11
	LW01-13		700.12			548.01		198.27		447.84		193.95		13.40		406.88		154.69		1 956.39		709.34		3 295.3		858.08		8 954.9		1 483.1		5 157.2		21 641.3		35 534.9		2.52
	LW01-14		0.28			56.79		5.44		30.38		49.41		5.12		288.93		137.40		1 865.43		713.80		3 379.6		863.32		8 580.7		1 506.1		2 956.1		18 572.6		37 037.4		13.86
	LW01-15		0.28			62.38		11.36		44.98		52.70		8.12		253.48		118.55		1 584.67		592.07		2 760.8		731.11		7 475.3		1 298.8		2 234.5		14 034.0		38 518.1		6.72
	LW01-16		1.07			72.97		1.64		20.26		56.20		3.56		262.70		104.38		1 344.37		488.45		2 152.6		527.15		5 286.8		856.3		3 512.4		10 239.3		32 657.3		35.26
	LW01-17		0.82			42.41		1.23		10.04		54.40		5.37		283.15		124.01		1 733.54		656.99		3 074.5		782.41		8 217.6		1 371.3		2 869.4		18 443.9		34 118.6		37.61
	LW01-18		13.53			105.87		19.99		233.68		139.42		11.09		344.48		124.42		1 558.65		545.69		2 478.1		612.88		6 105.6		987.3		3 739.5		12 842.1		36 068.4		2.08
	LW01-19		1.69			152.04		1.85		30.35		60.10		7.69		293.31		118.65		1 587.83		589.00		2 728.1		735.42		7 811.3		1 271.6		3 969.7		23 067.4		36 131.0		58.62
	LW01-20		8 526.42			11 860.42		2 631.27		17 058.74		2 451.30		85.22		1 445.75		223.79		1 992.83		637.73		2 810.1		717.06		7 402.3		1 213.8		14 059.2		15 165.2		34 053.8		0.15
	LW01-21		4.71			582.12		12.53		168.69		136.75		28.51		484.92		154.12		1 909.19		685.73		2 964.1		723.13		6 874.3		1 084.0		22 960.8		15 163.7		31 754.1		21.73
	LW01-22		6.01			140.59		5.29		69.24		71.23		8.40		303.04		105.23		1 332.38		483.72		2 113.0		516.11		5 027.7		855.9		4 127.1		6 838.5		33 943.7		15.81
	LW01-23		1 865.41			2 448.07		529.37		3 533.15		515.60		25.87		454.26		130.78		1 721.71		659.86		3 205.2		868.32		9 225.5		1 592.1		2 460.3		16 085.1		41 641.7		1.71
	LW01-24		8.15			770.05		22.31		311.92		277.28		55.74		859.86		247.71		2 663.81		820.15		3 341.2		732.01		6 840.0		1 118.8		23 183.2		12 706.4		25 874.6		10.96
	LW01-25		0.01			27.59		0.21		4.74		25.16		4.61		177.68		80.66		1 194.30		465.37		2 259.4		615.69		6 396.6		1 081.8		1 516.9		15 314.1		40 069.4		104.54
	LW01-26		11.85			408.19		11.72		257.15		297.53		64.74		1 015.92		277.00		3 071.22		1 021.24		3 945.1		865.58		7 832.9		1 220.4		9 135.0		6 739.7		25 538.2		9.13
	LW01-27		6.56			807.51		7.05		168.59		209.31		36.83		744.08		209.22		2 286.04		741.82		2 929.2		636.32		5 828.6		931.2		15 972.1		6 895.3		28 000.7		33.13
	LW01-28		20.36			260.41		7.79		89.92		92.45		12.95		340.28		108.55		1 241.45		444.30		1 880.1		411.68		3 876.2		631.5		4 233.7		3 604.2		29 688.3		16.39
	LW01-29		264.11			422.92		78.38		546.18		115.45		10.98		291.32		115.38		1 608.98		632.21		3 073.9		812.80		8 490.2		1 453.0		2 898.3		20 737.4		36 513.8		3.96
	LW01-30		2.00			504.65		27.39		112.91		108.75		17.43		406.84		142.90		1 633.34		551.09		2 224.7		509.36		4 639.3		772.4		9 163.0		7 044.3		30 628.9		13.96
	LW01-31		0.54			43.68		8.46		28.81		36.51		3.88		215.18		98.66		1 445.22		531.80		2 533.5		672.89		6 490.5		1 202.3		1 559.2		13 970.1		38 294.0		8.28
	LW01-32		0.24			22.66		4.36		20.13		33.73		4.39		188.96		92.94		1 290.05		495.17		2 445.6		630.94		6 465.8		1 171.6		1 168.4		9 677.9		36 203.4		7.08
岩石		样号		La	Ce		Pr		Nd		Sm		Eu		Gd		Tb		Dy		Ho		Er		Tm		Yb		Lu		Th		U		Hf		Ce⁴⁺/Ce³⁺
ZK 40004 黑云母二长花岗岩 (LW15)		LW15-03		1.00	22.20		4.62		19.63		36.46		2.84		212.37		108.05		1 552.93		605.91		2 958.6		794.08		8 117.4		1 369.5		966.3		15 261.4		36 552.5		11.05
		LW15-04		0.78	67.13		5.10		30.22		72.52		8.25		303.46		124.36		1 553.71		564.85		2 589.1		642.98		6 314.7		1 053.1		2 066.1		7 001.9		32 906.9		16.33
		LW15-06		1.26	186.78		7.14		52.08		109.34		15.72		405.72		144.58		1 658.53		557.06		2 337.8		543.47		4 865.8		811.6		4 451.4		6 372.3		31 334.2		21.50
		LW15-07		0.02	36.00		3.13		34.74		69.92		5.19		269.66		91.00		1 083.49		371.05		1 541.6		353.81		3 115.0		536.7		1 211.1		1 870.5		29 407.5		8.26
		LW15-08		0.06	17.20		0.96		11.19		40.90		3.64		216.95		107.59		1 489.26		573.84		2 791.8		723.90		7 375.9		1 268.4		1 088.5		9 549.5		36 361.7		24.49
		LW15-10		2.68	1 167.88		30.90		204.84		299.05		64.06		676.29		178.13		1 737.51		549.01		2 179.0		515.18		4 865.3		817.5		25 291.3		11 568.0		31 599.8		18.44
		LW15-11		0.14	191.45		11.36		84.77		149.21		27.04		483.49		167.02		1 926.50		632.94		2 695.4		588.49		5 328.3		901.9		2 742.0		2 113.8		26 034.1		11.60
		LW15-12		0.14	605.50		10.22		89.06		169.76		27.74		585.93		194.08		2 215.99		706.32		2 969.7		669.14		5 908.4		977.9		8 616.9		5 359.8		28 701.5		40.44
		LW15-13		0.02	19.99		0.27		4.79		26.80		3.69		180.82		98.18		1 474.81		598.49		3 036.6		851.58		8 785.1		1 555.3		1 018.1		15 955.4		36 749.2		104.60
		LW15-15		0.08	913.51		11.98		104.97		216.49		32.22		718.06		232.82		2 554.73		837.70		3 347.0		780.07		7 009.3		1 113.6		18 308.6		10 052.4		30 625.8		50.71
		LW15-16		3.00	39.83		5.47		10.75		31.39		4.19		192.61		96.44		1 373.91		536.28		2 636.7		689.62		7 146.6		1 206.5		1 130.2		12 011.1		36 348.0		22.47
		LW15-18		0.00	36.45		0.51		8.46		47.37		5.69		264.48		132.39		1 879.18		737.83		3 645.1		980.88		9 838.5		1 693.7		2 055.3		18 270.2		34 614.3		86.63
		LW15-21		1.06	633.90		14.75		96.18		159.23		29.67		506.78		168.02		1 881.10		629.31		2 634.6		628.09		5 887.2		939.2		12 341.2		9 754.4		28 133.8		32.78

岩石	样号		La			Ce		Pr		Nd		Sm		Eu		Gd		Tb		Dy		Ho		Er		Tm		Yb		Lu		Th		U		Hf		Ce⁴⁺/Ce³⁺
ZK 31901 黑云母二长花岗岩 (LW 01)	LW01-01		0027.16			00428.11		0019.24		00132.85		00183.32		28.06		395.59		00125.08		1 388.57		478.92		1 936.7		472.92		4 343.8		0728.2		10 503.8		7 507.6		31 766.6		10.10
	LW01-02		0.05			93.81		0.77		13.57		56.66		8.73		260.91		121.81		1 676.95		665.36		3 080.5		765.79		7 654.4		1 311.0		2 010.0		6 834.1		35 806.8		87.13
	LW01-03		99.44			713.79		45.90		239.99		224.47		24.75		514.17		167.61		1 795.72		596.17		2 404.6		532.78		4 773.7		782.6		9 782.1		6 035.7		27 848.9		8.02
	LW01-04		7.60			226.27		4.81		38.79		97.95		14.06		371.41		148.35		1 848.48		687.15		3 034.6		688.01		6 411.3		1 070.3		5 936.7		9 621.0		34 213.3		34.43
	LW01-05		48.29			823.44		31.48		252.79		332.64		41.82		841.67		264.89		2 798.96		907.18		3 661.1		781.32		6 998.3		1 153.6		14 011.8		6 960.3		26 947.0		11.10
	LW01-06		7.69			42.77		5.01		33.90		81.77		5.36		294.85		115.12		1 369.88		491.52		2 174.0		509.49		4 935.9		845.8		2 141.4		7 180.8		35 462.7		6.48
	LW01-07		36.76			48.61		20.55		65.44		52.09		3.43		200.65		86.29		1 232.81		476.63		2 263.7		583.92		5 962.0		1 086.5		1 296.7		12 055.4		36 178.2		2.92
	LW01-08		0.00			24.66		0.78		19.16		76.06		2.83		331.33		147.47		1 862.69		703.38		3 162.6		752.75		7 322.7		1 229.2		3 158.4		12 950.5		34 385.0		20.38
	LW01-09		1.59			95.61		1.66		16.35		54.44		4.24		270.82		110.33		1 512.45		556.65		2 531.1		635.86		6 233.4		1 092.5		2 817.6		12 751.9		35 852.4		54.36
	LW01-10		5.45			511.16		11.90		71.30		134.51		21.37		490.27		161.96		1 967.96		706.90		3 077.4		725.47		7 097.5		1 189.8		8 150.5		9 980.8		23 306.7		31.14
	LW01-11		16.82			173.91		177.43		406.76		173.53		22.60		394.46		160.50		1 856.22		615.61		2 677.9		674.76		6 687.3		1 118.4		2 973.2		12 428.5		36 338.5		0.01
	LW01-12		7.74			76.87		5.87		36.29		71.00		9.58		286.99		136.22		1 844.75		721.98		3 518.2		899.45		9 388.4		1 606.5		2 828.0		18 094.5		36 784.7		14.11
	LW01-13		700.12			548.01		198.27		447.84		193.95		13.40		406.88		154.69		1 956.39		709.34		3 295.3		858.08		8 954.9		1 483.1		5 157.2		21 641.3		35 534.9		2.52
	LW01-14		0.28			56.79		5.44		30.38		49.41		5.12		288.93		137.40		1 865.43		713.80		3 379.6		863.32		8 580.7		1 506.1		2 956.1		18 572.6		37 037.4		13.86
	LW01-15		0.28			62.38		11.36		44.98		52.70		8.12		253.48		118.55		1 584.67		592.07		2 760.8		731.11		7 475.3		1 298.8		2 234.5		14 034.0		38 518.1		6.72
	LW01-16		1.07			72.97		1.64		20.26		56.20		3.56		262.70		104.38		1 344.37		488.45		2 152.6		527.15		5 286.8		856.3		3 512.4		10 239.3		32 657.3		35.26
	LW01-17		0.82			42.41		1.23		10.04		54.40		5.37		283.15		124.01		1 733.54		656.99		3 074.5		782.41		8 217.6		1 371.3		2 869.4		18 443.9		34 118.6		37.61
	LW01-18		13.53			105.87		19.99		233.68		139.42		11.09		344.48		124.42		1 558.65		545.69		2 478.1		612.88		6 105.6		987.3		3 739.5		12 842.1		36 068.4		2.08
	LW01-19		1.69			152.04		1.85		30.35		60.10		7.69		293.31		118.65		1 587.83		589.00		2 728.1		735.42		7 811.3		1 271.6		3 969.7		23 067.4		36 131.0		58.62
	LW01-20		8 526.42			11 860.42		2 631.27		17 058.74		2 451.30		85.22		1 445.75		223.79		1 992.83		637.73		2 810.1		717.06		7 402.3		1 213.8		14 059.2		15 165.2		34 053.8		0.15
	LW01-21		4.71			582.12		12.53		168.69		136.75		28.51		484.92		154.12		1 909.19		685.73		2 964.1		723.13		6 874.3		1 084.0		22 960.8		15 163.7		31 754.1		21.73
	LW01-22		6.01			140.59		5.29		69.24		71.23		8.40		303.04		105.23		1 332.38		483.72		2 113.0		516.11		5 027.7		855.9		4 127.1		6 838.5		33 943.7		15.81
	LW01-23		1 865.41			2 448.07		529.37		3 533.15		515.60		25.87		454.26		130.78		1 721.71		659.86		3 205.2		868.32		9 225.5		1 592.1		2 460.3		16 085.1		41 641.7		1.71
	LW01-24		8.15			770.05		22.31		311.92		277.28		55.74		859.86		247.71		2 663.81		820.15		3 341.2		732.01		6 840.0		1 118.8		23 183.2		12 706.4		25 874.6		10.96
	LW01-25		0.01			27.59		0.21		4.74		25.16		4.61		177.68		80.66		1 194.30		465.37		2 259.4		615.69		6 396.6		1 081.8		1 516.9		15 314.1		40 069.4		104.54
	LW01-26		11.85			408.19		11.72		257.15		297.53		64.74		1 015.92		277.00		3 071.22		1 021.24		3 945.1		865.58		7 832.9		1 220.4		9 135.0		6 739.7		25 538.2		9.13
	LW01-27		6.56			807.51		7.05		168.59		209.31		36.83		744.08		209.22		2 286.04		741.82		2 929.2		636.32		5 828.6		931.2		15 972.1		6 895.3		28 000.7		33.13
	LW01-28		20.36			260.41		7.79		89.92		92.45		12.95		340.28		108.55		1 241.45		444.30		1 880.1		411.68		3 876.2		631.5		4 233.7		3 604.2		29 688.3		16.39
	LW01-29		264.11			422.92		78.38		546.18		115.45		10.98		291.32		115.38		1 608.98		632.21		3 073.9		812.80		8 490.2		1 453.0		2 898.3		20 737.4		36 513.8		3.96
	LW01-30		2.00			504.65		27.39		112.91		108.75		17.43		406.84		142.90		1 633.34		551.09		2 224.7		509.36		4 639.3		772.4		9 163.0		7 044.3		30 628.9		13.96
	LW01-31		0.54			43.68		8.46		28.81		36.51		3.88		215.18		98.66		1 445.22		531.80		2 533.5		672.89		6 490.5		1 202.3		1 559.2		13 970.1		38 294.0		8.28
	LW01-32		0.24			22.66		4.36		20.13		33.73		4.39		188.96		92.94		1 290.05		495.17		2 445.6		630.94		6 465.8		1 171.6		1 168.4		9 677.9		36 203.4		7.08
岩石		样号		La	Ce		Pr		Nd		Sm		Eu		Gd		Tb		Dy		Ho		Er		Tm		Yb		Lu		Th		U		Hf		Ce⁴⁺/Ce³⁺
ZK 40004 黑云母二长花岗岩 (LW15)		LW15-03		1.00	22.20		4.62		19.63		36.46		2.84		212.37		108.05		1 552.93		605.91		2 958.6		794.08		8 117.4		1 369.5		966.3		15 261.4		36 552.5		11.05
		LW15-04		0.78	67.13		5.10		30.22		72.52		8.25		303.46		124.36		1 553.71		564.85		2 589.1		642.98		6 314.7		1 053.1		2 066.1		7 001.9		32 906.9		16.33
		LW15-06		1.26	186.78		7.14		52.08		109.34		15.72		405.72		144.58		1 658.53		557.06		2 337.8		543.47		4 865.8		811.6		4 451.4		6 372.3		31 334.2		21.50
		LW15-07		0.02	36.00		3.13		34.74		69.92		5.19		269.66		91.00		1 083.49		371.05		1 541.6		353.81		3 115.0		536.7		1 211.1		1 870.5		29 407.5		8.26
		LW15-08		0.06	17.20		0.96		11.19		40.90		3.64		216.95		107.59		1 489.26		573.84		2 791.8		723.90		7 375.9		1 268.4		1 088.5		9 549.5		36 361.7		24.49
		LW15-10		2.68	1 167.88		30.90		204.84		299.05		64.06		676.29		178.13		1 737.51		549.01		2 179.0		515.18		4 865.3		817.5		25 291.3		11 568.0		31 599.8		18.44
		LW15-11		0.14	191.45		11.36		84.77		149.21		27.04		483.49		167.02		1 926.50		632.94		2 695.4		588.49		5 328.3		901.9		2 742.0		2 113.8		26 034.1		11.60
		LW15-12		0.14	605.50		10.22		89.06		169.76		27.74		585.93		194.08		2 215.99		706.32		2 969.7		669.14		5 908.4		977.9		8 616.9		5 359.8		28 701.5		40.44
		LW15-13		0.02	19.99		0.27		4.79		26.80		3.69		180.82		98.18		1 474.81		598.49		3 036.6		851.58		8 785.1		1 555.3		1 018.1		15 955.4		36 749.2		104.60
		LW15-15		0.08	913.51		11.98		104.97		216.49		32.22		718.06		232.82		2 554.73		837.70		3 347.0		780.07		7 009.3		1 113.6		18 308.6		10 052.4		30 625.8		50.71
		LW15-16		3.00	39.83		5.47		10.75		31.39		4.19		192.61		96.44		1 373.91		536.28		2 636.7		689.62		7 146.6		1 206.5		1 130.2		12 011.1		36 348.0		22.47
		LW15-18		0.00	36.45		0.51		8.46		47.37		5.69		264.48		132.39		1 879.18		737.83		3 645.1		980.88		9 838.5		1 693.7		2 055.3		18 270.2		34 614.3		86.63
		LW15-21		1.06	633.90		14.75		96.18		159.23		29.67		506.78		168.02		1 881.10		629.31		2 634.6		628.09		5 887.2		939.2		12 341.2		9 754.4		28 133.8		32.78

岩石		点号		含量/10^-6					Th/U	同位素比值						年龄/Ma							谐和度 /%
岩石		点号		Pb		Th		U	Th/U	²⁰⁷Pb/²⁰⁶Pb	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁸Pb/²³²Th	σ		谐和度 /%
那宁石英斑岩 (NN02), (93.11± 0.64) Ma, MSWD =1.04	NN02-04		262		3 018		26 253		0.11	0.048 35	0.000 70	0.098 30	0.001 72	0.014 76	0.000 23	95.21	1.6	94.46	1.4	85.24	1.6	99
	NN02-06		174		3 710		11 378		0.33	0.047 89	0.000 74	0.095 51	0.001 57	0.014 43	0.000 15	92.63	1.5	92.36	1.0	90.09	1.6	99
	NN02-10		229		4 216		16 162		0.26	0.049 07	0.000 85	0.098 83	0.002 22	0.014 60	0.000 22	95.70	2.1	93.42	1.4	96.02	1.5	97
	NN02-11		183		2 570		16 400		0.16	0.047 06	0.000 83	0.093 49	0.001 59	0.014 43	0.000 14	90.75	1.5	92.34	0.9	98.57	2.2	98
	NN02-19		159		1 942		14 314		0.14	0.048 16	0.000 85	0.097 77	0.001 90	0.014 71	0.000 16	94.72	1.8	94.14	1.0	98.93	2.0	99
	NN02-21		128		2 541		8 659		0.29	0.046 33	0.000 94	0.094 65	0.001 77	0.014 71	0.000 18	91.82	1.6	94.12	1.2	91.49	1.5	97
	NN02-23		170		3 909		10 604		0.37	0.049 08	0.000 81	0.099 97	0.001 70	0.014 77	0.000 15	96.75	1.6	94.52	1.0	86.66	1.5	97
	NN02-26		416		10 862		21 164		0.51	0.047 76	0.000 82	0.096 05	0.001 76	0.014 53	0.000 14	93.12	1.6	92.97	0.9	83.24	1.4	99
	NN02-20		304		2 602		27 852		0.09	0.052 11	0.000 85	0.104 61	0.001 99	0.014 52	0.000 15	101.02	1.8	92.91	1.0	142.13	6.2	91
	NN02-14		65		1 450		3 247		0.45	0.049 64	0.001 34	0.097 43	0.002 65	0.014 28	0.000 15	94.40	2.5	91.38	1.0	94.57	1.9	96
岩石		点号		含量/10^-6					Th/U	同位素比值						年龄/Ma							谐和度 /%
岩石		点号		Pb		Th		U	Th/U	²⁰⁷Pb/²⁰⁶Pb	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁸Pb/²³²Th	σ		谐和度 /%
ZK 31901 二长花岗岩 (LW01), (92.92± 0.69) Ma, MSWD =2.7		LW01-01		292		10 504		7 508	1.40	0.047 83	0.000 98	0.096 74	0.002 24	0.014 63	0.000 19	93.76	2.1	93.64	1.2	81.84	1.4		99
		LW01-02		131		2 010		6 834	0.29	0.049 62	0.000 99	0.100 55	0.002 37	0.014 62	0.000 17	97.28	2.2	93.58	1.1	105.74	2.4		96
		LW01-03		305		9 782		6 036	1.62	0.049 93	0.000 98	0.097 72	0.002 02	0.014 18	0.000 15	94.67	1.9	90.76	1.0	93.37	1.3		95
		LW01-04		236		5 937		9 621	0.62	0.048 49	0.000 85	0.095 43	0.001 78	0.014 27	0.000 16	92.55	1.6	91.33	1.0	95.40	1.6		98
		LW01-05		401		14 012		6 960	2.01	0.050 66	0.001 10	0.101 00	0.002 20	0.014 47	0.000 17	97.70	2.0	92.62	1.1	85.50	1.3		94
		LW01-06		127		2 141		7 181	0.30	0.050 53	0.000 96	0.098 79	0.001 93	0.014 15	0.000 17	95.66	1.8	90.59	1.1	93.26	2.1		94
		LW01-07		128		1 297		12 055	0.11	0.048 32	0.000 81	0.094 51	0.001 78	0.014 18	0.000 19	91.70	1.7	90.76	1.2	119.03	2.4		98
		LW01-08		246		8 028		11 582	0.69	0.046 78	0.000 78	0.090 76	0.001 75	0.014 09	0.000 22	88.21	1.6	90.22	1.4	70.63	1.0		97
		LW01-09		161		2 818		12 752	0.22	0.046 93	0.000 74	0.097 74	0.001 69	0.015 07	0.000 19	94.68	1.6	96.42	1.2	85.07	1.5		98
		LW01-10		266		8 150		9 981	0.82	0.048 76	0.000 95	0.094 88	0.001 92	0.014 06	0.000 17	92.04	1.8	90.01	1.1	85.27	1.5		97
		LW01-11		233		5 134		15 311	0.34	0.048 82	0.000 76	0.099 46	0.001 54	0.014 75	0.000 17	96.28	1.4	94.40	1.1	87.42	1.8		98
		LW01-12		169		401		17 590	0.02	0.050 91	0.000 77	0.105 68	0.001 94	0.014 96	0.000 17	102.01	1.8	95.72	1.1	329.72	16.2		93
		LW01-13		264		5 157		21 641	0.24	0.047 67	0.000 76	0.096 83	0.001 80	0.014 68	0.000 20	93.85	1.7	93.95	1.3	79.10	1.3		99
		LW01-14		161		5 004		4 330	1.16	0.048 61	0.001 12	0.100 05	0.002 38	0.014 88	0.000 17	96.82	2.2	95.24	1.1	90.10	1.5		98
		LW01-15		102		1 802		7 882	0.23	0.047 96	0.001 35	0.095 54	0.002 91	0.014 46	0.000 18	92.66	2.7	92.58	1.1	86.78	1.9		99
		LW01-16		168		3 512		10 239	0.34	0.048 99	0.000 80	0.097 92	0.001 73	0.014 49	0.000 16	94.85	1.6	92.74	1.0	90.16	1.5		97
		LW01-17		206		2 869		18 444	0.16	0.046 49	0.000 72	0.095 10	0.001 61	0.014 80	0.000 15	92.24	1.5	94.74	1.0	88.74	1.6		97
		LW01-18		149		3 740		12 842	0.29	0.049 40	0.000 86	0.099 41	0.002 15	0.014 54	0.000 21	96.23	2.0	93.06	1.3	60.11	1.6		96
		LW01-19		264		3 970		23 067	0.17	0.046 43	0.000 68	0.091 91	0.001 64	0.014 32	0.000 21	89.28	1.5	91.66	1.3	96.00	1.6		97
		LW01-20		449		14 059		15 165	0.93	0.048 28	0.000 73	0.098 02	0.001 82	0.014 68	0.000 21	94.94	1.7	93.95	1.3	114.54	4.9		98
		LW01-21		649		22 961		15 164	1.51	0.047 24	0.000 72	0.092 46	0.001 73	0.014 12	0.000 18	89.80	1.6	90.40	1.2	81.84	1.3		99
		LW01-22		106		3 506		2 414	1.45	0.046 63	0.001 46	0.091 88	0.002 91	0.014 36	0.000 22	89.25	2.7	91.89	1.4	87.88	1.5		97
		LW01-23		211		2 460		16 085	0.15	0.050 53	0.000 82	0.103 08	0.002 45	0.014 63	0.000 21	99.61	2.3	93.65	1.3	115.01	3.5		93
		LW01-24		648		23 183		12 706	1.82	0.047 62	0.000 88	0.092 13	0.002 00	0.014 08	0.000 24	89.49	1.9	90.15	1.5	85.98	1.4		99
岩石		点号		含量/10^-6					Th/U	同位素比值						年龄/Ma							谐和度 /%
岩石		点号		Pb		Th		U	Th/U	²⁰⁷Pb/²⁰⁶Pb	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁸Pb/²³²Th	σ		谐和度 /%
ZK 31901 二长花岗岩 (LW01), (92.92± 0.69) Ma, MSWD =2.7		LW01-25		148		1 517		15 314	0.10	0.047 41	0.000 81	0.095 65	0.001 76	0.014 66	0.000 20	92.75	1.6	93.80	1.3	95.46	1.9		98
		LW01-26		257		9 135		6 740	1.36	0.049 66	0.001 03	0.098 21	0.002 59	0.014 36	0.000 29	95.12	2.4	91.88	1.8	82.45	1.7		96
		LW01-27		149		4 993		3 294	1.52	0.049 72	0.001 59	0.101 74	0.003 82	0.014 83	0.000 26	98.38	3.5	94.91	1.6	91.11	1.7		96
		LW01-28		140		4 234		3 604	1.17	0.051 66	0.001 37	0.103 74	0.002 76	0.014 54	0.000 17	100.23	2.5	93.08	1.1	92.89	1.5		92
		LW01-29		214		6 161		7 448	0.83	0.052 13	0.001 06	0.103 10	0.002 18	0.014 31	0.000 15	99.63	2.0	91.57	1.0	89.58	1.4		91
		LW01-30		99		1 168		9 678	0.12	0.046 36	0.000 85	0.096 65	0.002 01	0.015 05	0.000 18	93.68	1.9	96.31	1.1	93.90	2.1		97
		LW01-31		144		1 559		13 970	0.11	0.050 04	0.001 33	0.100 07	0.002 96	0.014 41	0.000 17	96.84	2.7	92.23	1.1	122.60	4.1		95
		LW01-32		288		9 163		7 044	1.30	0.049 45	0.001 08	0.102 77	0.002 50	0.015 00	0.000 20	99.33	2.3	95.97	1.3	92.42	1.4		96
岩石		点号		含量/10^-6					Th/U	同位素比值						年龄/Ma							谐和度 /%
岩石		点号		Pb		Th		U	Th/U	²⁰⁷Pb/²⁰⁶Pb	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁸Pb/²³²Th	σ		谐和度 /%
ZK 40004 黑云母花岗岩 (LW15), (92.50± 1.1) Ma, MSWD =2.6		LW15-03		135		966		15 261	0.06	0.048 31	0.000 65	0.097 37	0.001 60	0.014 56	0.000 17	94.34	1.5	93.20	1.1	107.70	2.0		98
		LW15-04		105		2 066		7 002	0.30	0.049 47	0.000 80	0.101 48	0.002 09	0.014 85	0.000 23	98.14	1.9	95.04	1.5	94.90	1.8		96
		LW15-07		48		1 211		1 870	0.65	0.053 00	0.001 57	0.102 79	0.003 11	0.014 11	0.000 21	99.35	2.9	90.30	1.3	96.30	2.0		90
		LW15-08		103		1 088		9 549	0.11	0.050 20	0.000 91	0.100 93	0.002 10	0.014 56	0.000 21	97.63	1.9	93.19	1.3	121.41	4.1		95
		LW15-10		711		25 291		11 568	2.19	0.051 62	0.000 93	0.100 58	0.001 82	0.014 12	0.000 16	97.31	1.7	90.37	1.0	88.35	1.5		92
		LW15-11		92		2 742		2 114	1.30	0.048 96	0.001 41	0.100 55	0.003 60	0.014 75	0.000 27	97.28	3.3	94.38	1.7	94.87	1.6		96
		LW15-12		276		8 617		5 360	1.61	0.051 11	0.001 06	0.100 02	0.002 27	0.014 14	0.000 18	96.79	2.1	90.53	1.1	92.64	1.5		93
		LW15-13		141		1 018		15 955	0.06	0.048 24	0.000 75	0.095 28	0.001 51	0.014 29	0.000 14	92.41	1.4	91.49	0.9	102.90	2.5		99
		LW15-15		551		18 309		10 052	1.82	0.048 68	0.001 00	0.095 54	0.002 55	0.014 14	0.000 23	92.65	2.4	90.52	1.5	91.84	1.8		97
		LW15-16		121		1 130		12 011	0.09	0.048 57	0.000 82	0.098 16	0.001 90	0.014 59	0.000 18	95.08	1.8	93.40	1.1	103.28	2.5		98
		LW15-18		187		2 055		18 270	0.11	0.046 78	0.000 72	0.094 72	0.001 58	0.014 62	0.000 15	91.89	1.5	93.58	0.9	91.93	1.7		98
		LW15-21		386		12 341		9 754	1.27	0.047 16	0.000 69	0.095 22	0.001 54	0.014 62	0.000 17	92.36	1.4	93.55	1.1	88.46	1.3		98
		LW15-06		164		4 451		6 372	0.70	0.050 80	0.000 99	0.107 79	0.002 80	0.015 30	0.000 28	103.94	2.6	97.90	1.8	91.39	1.5		94

岩石		点号		含量/10^-6					Th/U	同位素比值						年龄/Ma							谐和度 /%
岩石		点号		Pb		Th		U	Th/U	²⁰⁷Pb/²⁰⁶Pb	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁸Pb/²³²Th	σ		谐和度 /%
那宁石英斑岩 (NN02), (93.11± 0.64) Ma, MSWD =1.04	NN02-04		262		3 018		26 253		0.11	0.048 35	0.000 70	0.098 30	0.001 72	0.014 76	0.000 23	95.21	1.6	94.46	1.4	85.24	1.6	99
	NN02-06		174		3 710		11 378		0.33	0.047 89	0.000 74	0.095 51	0.001 57	0.014 43	0.000 15	92.63	1.5	92.36	1.0	90.09	1.6	99
	NN02-10		229		4 216		16 162		0.26	0.049 07	0.000 85	0.098 83	0.002 22	0.014 60	0.000 22	95.70	2.1	93.42	1.4	96.02	1.5	97
	NN02-11		183		2 570		16 400		0.16	0.047 06	0.000 83	0.093 49	0.001 59	0.014 43	0.000 14	90.75	1.5	92.34	0.9	98.57	2.2	98
	NN02-19		159		1 942		14 314		0.14	0.048 16	0.000 85	0.097 77	0.001 90	0.014 71	0.000 16	94.72	1.8	94.14	1.0	98.93	2.0	99
	NN02-21		128		2 541		8 659		0.29	0.046 33	0.000 94	0.094 65	0.001 77	0.014 71	0.000 18	91.82	1.6	94.12	1.2	91.49	1.5	97
	NN02-23		170		3 909		10 604		0.37	0.049 08	0.000 81	0.099 97	0.001 70	0.014 77	0.000 15	96.75	1.6	94.52	1.0	86.66	1.5	97
	NN02-26		416		10 862		21 164		0.51	0.047 76	0.000 82	0.096 05	0.001 76	0.014 53	0.000 14	93.12	1.6	92.97	0.9	83.24	1.4	99
	NN02-20		304		2 602		27 852		0.09	0.052 11	0.000 85	0.104 61	0.001 99	0.014 52	0.000 15	101.02	1.8	92.91	1.0	142.13	6.2	91
	NN02-14		65		1 450		3 247		0.45	0.049 64	0.001 34	0.097 43	0.002 65	0.014 28	0.000 15	94.40	2.5	91.38	1.0	94.57	1.9	96
岩石		点号		含量/10^-6					Th/U	同位素比值						年龄/Ma							谐和度 /%
岩石		点号		Pb		Th		U	Th/U	²⁰⁷Pb/²⁰⁶Pb	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁸Pb/²³²Th	σ		谐和度 /%
ZK 31901 二长花岗岩 (LW01), (92.92± 0.69) Ma, MSWD =2.7		LW01-01		292		10 504		7 508	1.40	0.047 83	0.000 98	0.096 74	0.002 24	0.014 63	0.000 19	93.76	2.1	93.64	1.2	81.84	1.4		99
		LW01-02		131		2 010		6 834	0.29	0.049 62	0.000 99	0.100 55	0.002 37	0.014 62	0.000 17	97.28	2.2	93.58	1.1	105.74	2.4		96
		LW01-03		305		9 782		6 036	1.62	0.049 93	0.000 98	0.097 72	0.002 02	0.014 18	0.000 15	94.67	1.9	90.76	1.0	93.37	1.3		95
		LW01-04		236		5 937		9 621	0.62	0.048 49	0.000 85	0.095 43	0.001 78	0.014 27	0.000 16	92.55	1.6	91.33	1.0	95.40	1.6		98
		LW01-05		401		14 012		6 960	2.01	0.050 66	0.001 10	0.101 00	0.002 20	0.014 47	0.000 17	97.70	2.0	92.62	1.1	85.50	1.3		94
		LW01-06		127		2 141		7 181	0.30	0.050 53	0.000 96	0.098 79	0.001 93	0.014 15	0.000 17	95.66	1.8	90.59	1.1	93.26	2.1		94
		LW01-07		128		1 297		12 055	0.11	0.048 32	0.000 81	0.094 51	0.001 78	0.014 18	0.000 19	91.70	1.7	90.76	1.2	119.03	2.4		98
		LW01-08		246		8 028		11 582	0.69	0.046 78	0.000 78	0.090 76	0.001 75	0.014 09	0.000 22	88.21	1.6	90.22	1.4	70.63	1.0		97
		LW01-09		161		2 818		12 752	0.22	0.046 93	0.000 74	0.097 74	0.001 69	0.015 07	0.000 19	94.68	1.6	96.42	1.2	85.07	1.5		98
		LW01-10		266		8 150		9 981	0.82	0.048 76	0.000 95	0.094 88	0.001 92	0.014 06	0.000 17	92.04	1.8	90.01	1.1	85.27	1.5		97
		LW01-11		233		5 134		15 311	0.34	0.048 82	0.000 76	0.099 46	0.001 54	0.014 75	0.000 17	96.28	1.4	94.40	1.1	87.42	1.8		98
		LW01-12		169		401		17 590	0.02	0.050 91	0.000 77	0.105 68	0.001 94	0.014 96	0.000 17	102.01	1.8	95.72	1.1	329.72	16.2		93
		LW01-13		264		5 157		21 641	0.24	0.047 67	0.000 76	0.096 83	0.001 80	0.014 68	0.000 20	93.85	1.7	93.95	1.3	79.10	1.3		99
		LW01-14		161		5 004		4 330	1.16	0.048 61	0.001 12	0.100 05	0.002 38	0.014 88	0.000 17	96.82	2.2	95.24	1.1	90.10	1.5		98
		LW01-15		102		1 802		7 882	0.23	0.047 96	0.001 35	0.095 54	0.002 91	0.014 46	0.000 18	92.66	2.7	92.58	1.1	86.78	1.9		99
		LW01-16		168		3 512		10 239	0.34	0.048 99	0.000 80	0.097 92	0.001 73	0.014 49	0.000 16	94.85	1.6	92.74	1.0	90.16	1.5		97
		LW01-17		206		2 869		18 444	0.16	0.046 49	0.000 72	0.095 10	0.001 61	0.014 80	0.000 15	92.24	1.5	94.74	1.0	88.74	1.6		97
		LW01-18		149		3 740		12 842	0.29	0.049 40	0.000 86	0.099 41	0.002 15	0.014 54	0.000 21	96.23	2.0	93.06	1.3	60.11	1.6		96
		LW01-19		264		3 970		23 067	0.17	0.046 43	0.000 68	0.091 91	0.001 64	0.014 32	0.000 21	89.28	1.5	91.66	1.3	96.00	1.6		97
		LW01-20		449		14 059		15 165	0.93	0.048 28	0.000 73	0.098 02	0.001 82	0.014 68	0.000 21	94.94	1.7	93.95	1.3	114.54	4.9		98
		LW01-21		649		22 961		15 164	1.51	0.047 24	0.000 72	0.092 46	0.001 73	0.014 12	0.000 18	89.80	1.6	90.40	1.2	81.84	1.3		99
		LW01-22		106		3 506		2 414	1.45	0.046 63	0.001 46	0.091 88	0.002 91	0.014 36	0.000 22	89.25	2.7	91.89	1.4	87.88	1.5		97
		LW01-23		211		2 460		16 085	0.15	0.050 53	0.000 82	0.103 08	0.002 45	0.014 63	0.000 21	99.61	2.3	93.65	1.3	115.01	3.5		93
		LW01-24		648		23 183		12 706	1.82	0.047 62	0.000 88	0.092 13	0.002 00	0.014 08	0.000 24	89.49	1.9	90.15	1.5	85.98	1.4		99
岩石		点号		含量/10^-6					Th/U	同位素比值						年龄/Ma							谐和度 /%
岩石		点号		Pb		Th		U	Th/U	²⁰⁷Pb/²⁰⁶Pb	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁸Pb/²³²Th	σ		谐和度 /%
ZK 31901 二长花岗岩 (LW01), (92.92± 0.69) Ma, MSWD =2.7		LW01-25		148		1 517		15 314	0.10	0.047 41	0.000 81	0.095 65	0.001 76	0.014 66	0.000 20	92.75	1.6	93.80	1.3	95.46	1.9		98
		LW01-26		257		9 135		6 740	1.36	0.049 66	0.001 03	0.098 21	0.002 59	0.014 36	0.000 29	95.12	2.4	91.88	1.8	82.45	1.7		96
		LW01-27		149		4 993		3 294	1.52	0.049 72	0.001 59	0.101 74	0.003 82	0.014 83	0.000 26	98.38	3.5	94.91	1.6	91.11	1.7		96
		LW01-28		140		4 234		3 604	1.17	0.051 66	0.001 37	0.103 74	0.002 76	0.014 54	0.000 17	100.23	2.5	93.08	1.1	92.89	1.5		92
		LW01-29		214		6 161		7 448	0.83	0.052 13	0.001 06	0.103 10	0.002 18	0.014 31	0.000 15	99.63	2.0	91.57	1.0	89.58	1.4		91
		LW01-30		99		1 168		9 678	0.12	0.046 36	0.000 85	0.096 65	0.002 01	0.015 05	0.000 18	93.68	1.9	96.31	1.1	93.90	2.1		97
		LW01-31		144		1 559		13 970	0.11	0.050 04	0.001 33	0.100 07	0.002 96	0.014 41	0.000 17	96.84	2.7	92.23	1.1	122.60	4.1		95
		LW01-32		288		9 163		7 044	1.30	0.049 45	0.001 08	0.102 77	0.002 50	0.015 00	0.000 20	99.33	2.3	95.97	1.3	92.42	1.4		96
岩石		点号		含量/10^-6					Th/U	同位素比值						年龄/Ma							谐和度 /%
岩石		点号		Pb		Th		U	Th/U	²⁰⁷Pb/²⁰⁶Pb	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁷Pb/²³⁵U	σ	²⁰⁶Pb/²³⁸U	σ	²⁰⁸Pb/²³²Th	σ		谐和度 /%
ZK 40004 黑云母花岗岩 (LW15), (92.50± 1.1) Ma, MSWD =2.6		LW15-03		135		966		15 261	0.06	0.048 31	0.000 65	0.097 37	0.001 60	0.014 56	0.000 17	94.34	1.5	93.20	1.1	107.70	2.0		98
		LW15-04		105		2 066		7 002	0.30	0.049 47	0.000 80	0.101 48	0.002 09	0.014 85	0.000 23	98.14	1.9	95.04	1.5	94.90	1.8		96
		LW15-07		48		1 211		1 870	0.65	0.053 00	0.001 57	0.102 79	0.003 11	0.014 11	0.000 21	99.35	2.9	90.30	1.3	96.30	2.0		90
		LW15-08		103		1 088		9 549	0.11	0.050 20	0.000 91	0.100 93	0.002 10	0.014 56	0.000 21	97.63	1.9	93.19	1.3	121.41	4.1		95
		LW15-10		711		25 291		11 568	2.19	0.051 62	0.000 93	0.100 58	0.001 82	0.014 12	0.000 16	97.31	1.7	90.37	1.0	88.35	1.5		92
		LW15-11		92		2 742		2 114	1.30	0.048 96	0.001 41	0.100 55	0.003 60	0.014 75	0.000 27	97.28	3.3	94.38	1.7	94.87	1.6		96
		LW15-12		276		8 617		5 360	1.61	0.051 11	0.001 06	0.100 02	0.002 27	0.014 14	0.000 18	96.79	2.1	90.53	1.1	92.64	1.5		93
		LW15-13		141		1 018		15 955	0.06	0.048 24	0.000 75	0.095 28	0.001 51	0.014 29	0.000 14	92.41	1.4	91.49	0.9	102.90	2.5		99
		LW15-15		551		18 309		10 052	1.82	0.048 68	0.001 00	0.095 54	0.002 55	0.014 14	0.000 23	92.65	2.4	90.52	1.5	91.84	1.8		97
		LW15-16		121		1 130		12 011	0.09	0.048 57	0.000 82	0.098 16	0.001 90	0.014 59	0.000 18	95.08	1.8	93.40	1.1	103.28	2.5		98
		LW15-18		187		2 055		18 270	0.11	0.046 78	0.000 72	0.094 72	0.001 58	0.014 62	0.000 15	91.89	1.5	93.58	0.9	91.93	1.7		98
		LW15-21		386		12 341		9 754	1.27	0.047 16	0.000 69	0.095 22	0.001 54	0.014 62	0.000 17	92.36	1.4	93.55	1.1	88.46	1.3		98
		LW15-06		164		4 451		6 372	0.70	0.050 80	0.000 99	0.107 79	0.002 80	0.015 30	0.000 28	103.94	2.6	97.90	1.8	91.39	1.5		94

	测点	¹⁷⁶Yb/¹⁷⁷Hf	¹⁷⁶Lu/¹⁷⁷Hf	¹⁷⁶Hf/¹⁷⁷Hf	2σ	年龄/Ma	ε_Hf(0)	ε_Hf(t)	T_DM1	T_DM2	f_Lu/Hf
那宁石英斑岩 (NN02)	NN02-04	0.017 553	0.000 655	0.282 194	0.000 023	94.46	-20.4	-18.4	1 478	2 326	-0.980 274
	NN02-06	0.027 249	0.000 977	0.282 533	0.000 021	92.36	-8.4	-6.5	1 016	1 569	-0.970 580
	NN02-11	0.045 272	0.001 566	0.282 683	0.000 022	92.34	-3.2	-1.2	819	1 236	-0.952 839
	NN02-19	0.032 451	0.001 146	0.282 537	0.000 023	94.14	-8.3	-6.3	1 015	1 562	-0.965 490
	NN02-21	0.021 194	0.000 776	0.282 497	0.000 020	94.12	-9.7	-7.7	1 062	1 650	-0.976 640
	NN02-23	0.041 380	0.001 451	0.282 526	0.000 023	94.52	-8.7	-6.7	1 039	1 586	-0.956 287
	NN02-26	0.052 688	0.001 931	0.282 532	0.000 022	92.97	-8.5	-6.6	1 045	1 576	-0.941 840
	NN02-14	0.055 506	0.002 104	0.282 623	0.000 022	91.38	-5.3	-3.4	917	1 371	-0.936 623
ZK 31901 二长花岗岩 (LW01)	LW01-01	0.057 400	0.001 964	0.282 553	0.000 039	93.64	-7.7	-5.8	1 014	1 527	-0.940 851
	LW01-02	0.047 734	0.001 672	0.282 545	0.000 022	93.58	-8.0	-6.1	1 018	1 545	-0.949 633
	LW01-03	0.081 764	0.002 695	0.282 588	0.000 026	90.76	-6.5	-4.7	984	1 453	-0.918 823
	LW01-04	0.073 351	0.002 573	0.282 592	0.000 023	91.33	-6.4	-4.5	975	1 445	-0.922 496
	LW01-05	0.049 618	0.001 702	0.282 547	0.000 021	92.60	-7.9	-6.0	1 016	1 541	-0.948 750
	LW01-06	0.063 284	0.002 360	0.282 564	0.000 040	90.59	-7.4	-5.5	1 010	1 507	-0.928 905
	LW01-07	0.047 789	0.001 771	0.282 544	0.000 019	90.76	-8.1	-6.2	1 023	1 550	-0.946 655
	LW01-08	0.056 025	0.001 946	0.282 561	0.000 021	90.22	-7.5	-5.6	1 003	1 513	-0.941 394
	LW01-09	0.055 295	0.001 986	0.282 497	0.000 021	96.42	-9.7	-7.7	1 096	1 651	-0.940 193
	LW01-10	0.072 069	0.002 575	0.282 728	0.000 029	90.01	-1.6	0.3	775	1 139	-0.922 443
	LW01-11	0.039 070	0.001 332	0.282 550	0.000 022	94.40	-7.9	-5.9	1 002	1 533	-0.959 878
	LW01-12	0.086 888	0.003 032	0.282 502	0.000 182	95.72	-9.6	-7.7	1 121	1 646	-0.908 678
	LW01-13	0.050 289	0.001 699	0.282 594	0.000 027	93.95	-6.3	-4.3	949	1 435	-0.948 827
	LW01-14	0.049 415	0.001 784	0.282 571	0.000 023	92.23	-7.1	-5.2	984	1 488	-0.946 266
	LW01-15	0.027 949	0.001 091	0.282 169	0.000 045	92.58	-21.3	-19.4	1 530	2 385	-0.967 127
	LW01-16	0.037 307	0.001 379	0.282 641	0.000 024	92.74	-4.6	-2.7	875	1 330	-0.958 458
	LW01-17	0.044 998	0.001 650	0.282 534	0.000 017	94.74	-8.4	-6.5	1 034	1 570	-0.950 293
	LW01-18	0.052 986	0.001 943	0.282 517	0.000 024	93.06	-9.0	-7.1	1 066	1 609	-0.941 488
	LW01-19	0.048 802	0.001 686	0.282 529	0.000 027	91.66	-8.6	-6.7	1 041	1 582	-0.949 209
	LW01-20	0.064 364	0.002 309	0.282 574	0.000 023	93.95	-7.0	-5.1	994	1 482	-0.930 456
	LW01-21	0.050 132	0.001 786	0.282 577	0.000 024	90.40	-6.9	-5.0	975	1 475	-0.946 196
	LW01-22	0.042 118	0.001 457	0.282 570	0.000 028	91.89	-7.1	-5.2	976	1 488	-0.956 104
	LW01-23	0.025 674	0.000 917	0.282 629	0.000 020	93.65	-5.1	-3.1	881	1 354	-0.972 387
	LW01-24	0.078 144	0.002 671	0.282 696	0.000 024	90.15	-2.7	-0.9	825	1 212	-0.919 538
	LW01-25	0.037 890	0.001 427	0.282 556	0.000 025	93.80	-7.6	-5.7	996	1 519	-0.957 021
	LW01-26	0.040 122	0.001 410	0.282 587	0.000 024	91.88	-6.5	-4.6	951	1 450	-0.957 538
	LW01-27	0.070 580	0.002 497	0.282 589	0.000 037	94.91	-6.5	-4.5	977	1 448	-0.924 787
	LW01-28	0.051 980	0.001 839	0.282 590	0.000 021	91.57	-6.4	-4.5	958	1 445	-0.944 598
	LW01-29	0.029 554	0.001 066	0.282 550	0.000 019	93.08	-7.9	-5.9	996	1 533	-0.967 878
	LW01-30	0.061 614	0.002 220	0.282 586	0.000 021	96.31	-6.6	-4.6	974	1 453	-0.933 126
	LW01-31	0.061 560	0.002 217	0.282 575	0.000 023	95.24	-7.0	-5.0	989	1 478	-0.933 213
	LW01-32	0.057 132	0.002 085	0.282 529	0.000 034	95.97	-8.6	-6.6	1 053	1 581	-0.937 191
ZK 40004 黑云母花岗岩 (LW15)	LW15-21	0.076 118	0.002 707	0.282 617	0.000 027	93.55	-5.5	-3.6	941	1 386	-0.918 461
	LW15-16	0.057 945	0.002 137	0.282 548	0.000 023	93.40	-7.9	-6.0	1 026	1 539	-0.935 647
	LW15-10	0.023 874	0.000 844	0.282 565	0.000 020	90.37	-7.3	-5.4	968	1 500	-0.974 568
	LW15-08	0.071 919	0.002 808	0.282 547	0.000 035	93.19	-8.0	-6.1	1 047	1 545	-0.915 407
	LW15-03	0.025 285	0.000 906	0.282 371	0.000 027	93.20	-14.2	-12.2	1 241	1 933	-0.972 710

广西右江褶皱带东南缘西大明山矿集区燕山期酸性岩浆锆石U-Pb年龄、Hf同位素和Ce(IV)/Ce(III)特征

LA-ICP-MS Zircon U-Pb Dating,Hf Isotopic Composition and Ce⁴⁺/Ce³⁺ Characteristics of the Yanshanian Acid Magma in the Xidamingshan Cluster,Southeastern Margin of the Youjiang Fold Belt,Guangxi

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