辽东岫岩地区晚侏罗世侵入岩的年代学、地球化学特征及地质意义

doi:10.19657/j.geoscience.1000-8527.2020.077

摘要/Abstract

摘要：

对辽东岫岩地区锉草沟黑云母二长花岗岩、刘家堡子二云母二长花岗岩进行了岩相学观察、LA-ICP-MS锆石U-Pb年代学和地球化学测试。测年结果显示锉草沟黑云母二长花岗岩的锆石年龄为(162.7±2.5) Ma,刘家堡子二云母二长花岗岩锆石年龄为(156.9±1.1) Ma,均形成于晚侏罗世。两个岩体具有相似的地球化学特征,主量元素具有富Si、Al和K以及贫Fe、Mg和Ca的特征,A/CNK值为1.01~1.15,A/NK值为1.13~1.33;微量元素亏损Nb、P和Ti等高场强元素,富集Rb、K和Hf等不相容元素,(La/Yb)_N为7.10~41.13,Eu无负异常,具有高Sr (128×10^-6~454×10^-6)、低Y(3.03×10^-6~12.10×10^-6)和Yb(0.40×10^-6~1.32×10^-6)特征,表现为具有埃达克质亲和性的过铝质I型花岗岩。结合两个岩体的时空特点分析认为,在晚侏罗世时期,辽东岫岩地区花岗质岩浆作用的发生是太平洋Izanaqi板块向西俯冲、西伯利亚板块与华北板块碰撞挤压造成地壳增厚,进而引发下地壳物质部分熔融的结果。

关键词: 辽东岫岩, 晚侏罗世侵入岩, 锆石U-Pb测年, 过铝质I型花岗岩, 埃达克质岩石

Abstract:

Petrographic and geochemical data and LA-ICP-MS zircon U-Pb ages have been obtained for the Cuocaogou biotite monzogranites, Liujiapuzi two-mica monzogranites at Xiuyan, eastern Liaoning Province. LA-ICP-MS zircon U-Pb ages of the Cuocaogou biotite monzogranites (162.7±2.5 Ma) and Liujiapuzi two-mica monzogranites (156.9±1.1 Ma) indicate that the granitoid emplacement occurred in the Late Jurassic. Two kinds of intrusions have the same geochemical characteristics, with their major element contents featured by high Si, Al, and K, but low Fe, Mg, and Ca. The rocks have A/CNK=1.01-1.15 and A/NK=1.13-1.33. Trace elements are enriched in incompatible elements such as Rb, K, and Hf, but depleted in Nb, P, and Ti. The rocks have (La/Yb)_N=7.10-41.13, and have no discernible Eu anomaly. With high Sr (128×10^-6-454×10^-6) and low Y (3.03×10^-6-12.10×10^-6) and Yb (0.40×10^-6-1.32×10^-6) features, the rocks show adakitic and peraluminous I-type affinity. Combined with spatial-temporal characteristics of the two plutons, magmatism at Xiuyan was likely formed in a continental crustal thickening setting, which may have been related to the Paleo-Pacific (Izanaqi plate) subduction when the Siberian and North China plate collided. This may have induced partial melting of lower crustal materials.

Key words: Xiuyan, eastern Liaoning, Late Jurassic intrusive rock, zircon U-Pb dating, peraluminous I-type granite, Adakitic rock

中图分类号:

王玉平, 吴文彬, 刘永俊, 李海洋, 王晓亮, 李超. 辽东岫岩地区晚侏罗世侵入岩的年代学、地球化学特征及地质意义[J]. 现代地质, 2021, 35(04): 955-967.

WANG Yuping, WU Wenbin, LIU Yongjun, LI Haiyang, WANG Xiaoliang, LI Chao. Geochronology, Geochemistry, and Geological Significance of Late Jurassic Intrusions at Xiuyan, Eastern Liaoning Province[J]. Geoscience, 2021, 35(04): 955-967.

图/表 10

参考文献 60

[1]	WU Fuyuan, YANG Jinhui, WILDE S A, et al. Geochronology, petrogenesis and tectonic implications of Jurassic granites in the Liaodong Peninsula, NE China[J]. Chemical Geology, 2005, 221(1):127-156. DOI URL
[2]	吴福元, 杨进辉, 柳小明. 辽东半岛中生代花岗质岩浆作用的年代学格架[J]. 高校地质学报, 2005, 11(3):305-317.
[3]	林景仟, 谭东娟, 迟效国. 胶辽半岛中生代花岗岩[M]. 北京: 科学出版社, 1992.
[4]	刘红涛, 翟明国, 刘建明, 等. 华北克拉通北缘中生代花岗岩:从碰撞后到非造山[J]. 岩石学报, 2002, 18(4):433-448.
[5]	秦亚, 梁一鸿, 胡兆初, 等. 吉南老岭地区早白垩世铝质A型花岗岩的厘定及其构造意义[J]. 地球科学——中国地质大学学报, 2013, 38(4):677-688.
[6]	刘杰勋, 郭巍, 朱凯. 辽东岫岩地区早白垩世侵入岩的年代学、地球化学及地质意义[J]. 岩石学报, 2016, 32(9):2889-2900.
[7]	刘俊来, 纪沫, 申亮, 等. 辽东半岛早白垩世伸展构造组合、形成时代及区域构造内涵[J]. 中国科学:地球科学, 2011, 41(5):618-637.
[8]	王晓亮, 吕行, 刘永俊, 等. 辽东岫岩地区晚三叠世侵入岩LA-ICP-MS锆石U-Pb年龄、地球化学特征及地质意义[J]. 地质论评, 2019, 65(2):401-416.
[9]	崔维龙, 刘正宏, 杜洋, 等. 辽东地区大兴岩体LA-ICP-MS锆石U-Pb定年、地球化学特征及地质意义[J]. 地球科学与环境学报, 2016, 38(5):623-637.
[10]	陈树良, 曲洪祥, 杨忠柱, 等. K51C004003(丹东市)、J51C001003(东港市)1∶25万区域地质调查成果报告[R]. 沈阳:辽宁省地质矿产调查院, 2003.
[11]	许立权, 邓晋福, 陈志勇, 等. 内蒙古达茂旗北部奥陶纪埃达克岩类的识别及其意义[J]. 现代地质, 2003, 17(4):428-434.
[12]	张旗, 焦守涛. 埃达克岩来自高压背景——一个科学的、可靠的、有预见性的科学发现[J]. 岩石学报, 2020, 36(6):1675-1683.
[13]	杨凤超, 宋运红, 郝立波, 等. 辽东三家子地区晚侏罗世花岗岩SHRIMP U-Pb年龄、Hf同位素特征及地质意义[J]. 地质学报, 2015, 89(10):1773-1782.
[14]	赵丽君, 吕晓瑜, 王岐. 辽东地区新太古代变质深成岩岩石化学特征及构造背景[J]. 地质与资源, 2012, 21(6):501-507.
[15]	段晓侠, 刘建明, 王永彬, 等. 辽宁青城子铅锌多金属矿田晚三叠世岩浆岩年代学、地球化学及地质意义[J]. 岩石学报, 2012, 28(2):595-606.
[16]	申亮. 华北克拉通东部晚中生代构造体制转换:以辽东半岛为例[D]. 北京:中国地质大学(北京), 2013.
[17]	李壮, 陈斌, 刘经纬, 等. 辽东半岛南辽河群锆石U-Pb年代学及其地质意义[J]. 岩石学报, 2015, 31(6):1589-1605.
[18]	陈井胜, 邢德和, 刘淼, 等. 辽宁辽阳地区辽河群酸性火山岩锆石U-Pb年代学及其地质意义[J]. 岩石学报, 2017, 33(9):2792-2810.
[19]	申亮, 刘俊来, 胡玲, 等. 辽东半岛大营子拆离断层系及其区域构造意义[J]. 中国科学:地球科学, 2011, 41(4):437-451.
[20]	杨进辉, 吴福元, 罗清华, 等. 辽宁丹东地区侏罗纪花岗岩的变形时代:⁴⁰Ar/³⁹Ar年代学制约[J]. 岩石学报, 2004, 20(5):216-225.
[21]	YANG Jinhui, CHUNG Sunlin, WILDE S A, et al. Petrogenesis of post-orogenic syenites in the Sulu Orogenic Belt, East China: geochronological, geochemical and Nd-Sr isotopic evidence[J]. Chemical Geology, 2005, 214(1):99-125. DOI URL
[22]	LIU Yongsheng, HU Zhaochu, ZONG Keqing, et al. Reappraisement and refinement of zircon U-Pb isotope and trace element analyses by LA-ICP-MS[J]. Chinese Science Bulletin, 2010, 55(15):1535-1546. DOI URL
[23]	HOU Kejun, TIAN Yourong, LI Yanhe. In situ U-Pb zircon dating using laser ablation-multi ion counting-ICP-MS[J]. Mineral Deposits, 2009, 28(4):481-492.
[24]	LIU Yongsheng, HU Zhaochu, GAO Shan, et al. In situ analysis of major and trace elements of anhydrous minerals by LA-ICP-MS without applying an internal standard[J]. Chemical Geology, 2008, 257(1):34-43. DOI URL
[25]	LI Yonggang, ZHAI Mingguo, YANG Jinhui, et al. Gold mineralization age of the Anjiayingzi gold deposit in Chifeng County, Inner Mongolia and implications for Mesozoic metallogenic explosion in North China[J]. Science in China:Earth Sciences, 2004, 47(2):115-121.
[26]	BOYNTON W V. Chapter 3-cosmochemistry of the rare earth elements: Meteorite studies[J]. Developments in Geochemistry, 1984, 2(2):63-114.
[27]	SUN S S, MCDONOUGH W F. Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes[J]. Geological Society,London,Special Publications, 1989, 42(1):313-345. DOI URL
[28]	GREEN T H. Significance of Nb/Ta as an indicator of geochemical processes in the crust-mantle system[J]. Chemical Geology, 1995, 120(3/4):347-359. DOI URL
[29]	SYLVESTER P J. Post-collisional alkaline granites[J]. The Journal of Geology, 1989, 97(3):261-280. DOI URL
[30]	吴福元, 刘小驰, 纪伟强, 等. 高分异花岗岩的识别与研究[J]. 中国科学:地球科学, 2017, 47(7):745-765.
[31]	CHAPPELL B W, SIAL A N, STEPHENS W E, et al. Aluminium saturation in I- and S-type granites and the characterization of fractionated haplogranites[J]. Lithos, 1999, 46(3):535-551. DOI URL
[32]	CHAPPELL B W, WHITE A J R. Two contrasting granite type[J]. Pacific Geology, 1974, 8:173-174.
[33]	骆念岗, 王彬娜, 刘显成, 等. 辽东桓仁西部古元古代侵入岩年代学及岩石地球化学[J]. 现代地质, 2019, 33(1):98-111.
[34]	DEFANT M J, DRUMMOND M S. Derivation of some modern arc magmas by melting of young subducted lithosphere[J]. Nature, 1990, 347:662-665. DOI URL
[35]	WANG Qiang, WYMAN D A, XU Jifeng, et al. Early Cretaceous adakitic granites in the Northern Dabie Complex, central China: Implications for partial melting and delamination of thickened lower crust[J]. Geochimica et Cosmochimica Acta, 2007, 71(10):2609-2636. DOI URL
[36]	许继峰, 梅厚钧, 于学元, 等. 准噶尔北缘晚古生代岛弧中与俯冲作用有关的adakite火山岩: 消减板片部分熔融的产物[J]. 科学通报, 2001, 46(8):684-687.
[37]	WHALEN J B, CURRIE K L, CHAPPELL B W. A-type granites: Geochemical characteristics, discrimination and petrogenesis[J]. Contributions to Mineralogy and Petrology, 1987, 95:407-419. DOI URL
[38]	NAKADA S, TAKAHASHI M . Regional variation in chemistry of the Miocene intermediate to felsic magmas in the Outer Zone and the Setouchi Province of Southwest Japan[J]. The Geological Society of Japan, 1979, 85(9):571-582.
[39]	COLLINS W J, BEAMS S D, WHITE A, et al. Nature and origin of A-type granites with particular reference to southeastern Australia[J]. Contributions to Mineralogy and Petrology, 1982, 80(2):189-200. DOI URL
[40]	WANG Qiang, WYMAN D A., XU Jifeng, et al. Partial melting of thickened or delaminated lower crust in the middle of Eastern China: Implications for Cu-Au mineralization[J]. The Journal of Geology, 2007, 115(2):149-161. DOI URL
[41]	ZHANG Hongfei, ZHANG Li, HARRIS Nigel, et al. U-Pb zircon ages, geochemical and isotopic compositions of granitoids in Songpan-Garze fold belt, eastern Tibetan Plateau: constraints on petrogenesis and tectonic evolution of the basement[J]. Contributions to Mineralogy and Petrology, 2006, 152(1):75-88. DOI URL
[42]	WANG Qiang, FRANK Mcdermott, XU Jifeng, et al. Cenozoic K-rich adakitic volcanic rocks in the Hohxil area, northern Tibet: Lower-crustal melting in an intracontinental setting[J]. Geology, 2005, 33(6):465-468. DOI URL
[43]	HOU Z Q, GAO Y F, QU X M, et al. Origin of adakitic intrusives generated during mid-Miocene east-west extension in southern Tibet[J]. Earth and Planetary Science Letters, 2004, 220(1/2):139-155. DOI URL
[44]	CHUNG S L, LIU D, JI J, et al. Adakites from continental collision zones: melting of thickened lower crust beneath southern Tibet[J]. Geology, 2003, 31(11):1021-1024 DOI URL
[45]	刘锦. 华北板块北缘东段开原地区中生代构造演化[D]. 长春:吉林大学, 2017.
[46]	ZHANG Hongfu, SUN Min, ZHOU Xinhua, et al. Geochemical constraints on the origin of Mesozoic alkaline intrusive complexes from the North China Craton and tectonic implications[J]. Lithos, 2005, 81(1):297-317. DOI URL
[47]	张允平. 东北亚地区晚侏罗—白垩纪构造格架主体特点[J]. 吉林大学学报(地球科学版), 2011, 41(5):1267-1284.
[48]	杨进辉, 吴福元, 柳小明, 等. 辽东半岛小黑山岩体成因及其地质意义:锆石U-Pb年龄和铪同位素证据[J]. 矿物岩石地球化学通报, 2007, 26(1):29-43.
[49]	张朋, 陈冬, 寇林林, 等. 辽东卧龙泉岩体锆石U-Pb年龄、地球化学、Sr-Nd-Pb同位素特征及其构造意义[J]. 地质学报, 2015, 89(10):1762-1772.
[50]	GAO S, RUDNICK R L, YUAN H L, et al. Recycling lower continental crust in the North China craton[J]. Nature, 2004, 432:892-897. DOI URL
[51]	WU Fuyuan, LIN Jingqian, WILDE S A, et al. Nature and significance of the Early Cretaceous giant igneous event in eastern China[J]. Earth and Planetary Science Letters, 2005, 233(1):103-119. DOI URL
[52]	LI X H, CHUNG S L, ZHOU H W, et al. Jurassic intraplate magmatism in southern Hunan-eastern Guangxi: ⁴⁰Ar/³⁹Ar da-ting, geochemistry, Sr-Nd isotopes and implications for the tectonic evolution of SE China[J]. Geological Society,London,Special Publications, 2004, 226(1):193-215. DOI URL
[53]	翟明国, 孟庆任, 刘建明, 等. 华北东部中生代构造体制转折峰期的主要地质效应和形成动力学探讨[J]. 地学前缘, 2004, 11(3):285-297.
[54]	张旗, 李承东. 花岗岩:地球动力学意义[M]. 北京: 海洋出版社, 2012.
[55]	姜耀辉, 蒋少涌, 赵葵东, 等. 辽东半岛煌斑岩SHRIMP锆石U-Pb年龄及其对中国东部岩石圈减薄开始时间的制约[J]. 科学通报, 2005, 50(19):2161-2168.
[56]	WU Fuyuan, YANG Yuehe, XIE Liewen, et al. Hf isotopic compositions of the standard zircons and baddeleyites used in U-Pb geochronology[J]. Chemical Geology, 2006, 234(1):105-126. DOI URL
[57]	陈斌, 田伟, 翟明国, 等. 太行山和华北其它地区中生代岩浆作用的锆石U-Pb年代学和地球化学特征及其岩浆成因和地球动力学意义[J]. 岩石学报, 2005, 21(1):13-24.
[58]	MARUYAMA S. Pacific-type orogeny revisited: Miyashiro-type orogeny proposed[J]. Island Arc, 1997, 6(1):91-120. DOI URL
[59]	YANG Jinhui, WU Fuyuan, SHAO Jian, et al. Constraints on the timing of uplift of the Yanshan Fold and Thrust Belt, North China[J]. Earth and Planetary Science Letters, 2006, 246(3):336-352. DOI URL
[60]	赵越, 张拴宏, 徐刚, 等. 燕山板内变形带侏罗纪主要构造事件[J]. 地质通报, 2004, 23(增):854-863.

测点号	Pb/ 10^-6	Th/ 10^-6	U/ 10^-6	Th/ U	同位素比值			年龄/Ma
测点号	Pb/ 10^-6	Th/ 10^-6	U/ 10^-6	Th/ U	²⁰⁷Pb/²⁰⁶Pb ±1σ	²⁰⁷Pb/²³⁵U ±1σ	²⁰⁶Pb/²³⁸U ±1σ	²⁰⁷Pb/²⁰⁶Pb ±1σ	²⁰⁷Pb/²³⁵U ±1σ	²⁰⁶Pb/²³⁸U ±1σ
P26Zr1-1	10	71	416	0.17	0.049 20±0.003 2	0.179 40±0.012 4	0.026 40±0.000 3	160.0±150.1	168±11.6	168±2.0
P26Zr1-2	50	217	2 070	0.10	0.050 80±0.000 6	0.180 20±0.002 7	0.025 70±0.000 3	231.0±28.8	168±2.5	164±1.9
P26Zr1-3	246	198	648	0.31	0.128 50±0.001 4	6.602 20±0.109 4	0.372 60±0.005 3	2 078.0±19.6	2 060±34.1	2 042±28.8
P26Zr1-4	21	60	848	0.07	0.051 10±0.001 2	0.183 80±0.004 9	0.026 10±0.000 3	245.0±54.1	171±4.6	166±2.1
P26Zr1-5	20	197	782	0.25	0.051 50±0.001 8	0.185 30±0.007 2	0.026 10±0.000 5	263.0±78.1	173±6.7	166±3.1
P26Zr1-6	256	265	786	0.34	0.126 00±0.001 4	5.632 10±0.075 6	0.324 30±0.003 3	2 043.0±19.9	1 921±25.8	1 810±18.2
P26Zr1-7	55	89	2 417	0.04	0.051 70±0.000 6	0.175 50±0.002 5	0.024 60±0.000 2	272.0±28.5	164±2.3	157±1.5
P26Zr1-8	7	74	263	0.28	0.050 10±0.002 2	0.181 60±0.008 2	0.026 30±0.000 3	199.0±103.5	169±7.6	167±1.7
P26Zr1-9	4	62	175	0.36	0.051 50±0.003 7	0.182 20±0.013 8	0.025 70±0.000 3	262.0±162.9	170±12.9	163±1.9
P26Zr1-10	4	31	180	0.17	0.051 70±0.004 8	0.175 70±0.016 1	0.024 60±0.000 3	274.0±210.9	164±15.0	157±1.8
P26Zr1-11	34	35	180	0.20	0.106 90±0.001 3	2.783 30±0.062 2	0.188 80±0.003 8	1 748.0±22.1	1 351±30.2	1 115±22.4
P26Zr1-12	5	87	188	0.46	0.051 80±0.003 1	0.175 60±0.010 5	0.024 60±0.000 3	279.0±136.9	164±9.8	156±1.6
P26Zr1-13	224	169	1 509	0.11	0.105 70±0.001 2	2.164 20±0.033 5	0.148 50±0.001 9	1 726.0±20.6	1 170±18.1	893±11.2
P26Zr1-14	101	82	1 138	0.07	0.104 20±0.001 4	1.293 30±0.041 1	0.090 00±0.002 4	1 700.0±23.9	843±26.8	556±15.0
P26Zr1-15	3	47	103	0.45	0.049 80±0.006 6	0.176 60±0.026 3	0.257 00±0.000 4	186.0±309.9	165±22.0	164±2.3
P26Zr1-16	24	16	112	0.14	0.121 50±0.001 5	3.572 60±0.080 1	0.213 30±0.004 1	1 978.0±22.6	1 543±34.6	1 247±24.1
P26Zr1-17	7	76	280	0.27	0.049 60±0.002 2	0.177 60±0.008 6	0.026 00±0.000 3	177.0±105.5	166±8.0	165±1.9
P26Zr1-18	4	31	139	0.22	0.048 40±0.004 2	0.173 60±0.015 1	0.026 00±0.000 3	177.0±202.7	162±14.2	166±2.0
P26Zr1-19	247	181	860	0.21	0.123 20±0.001 4	4.727 60±0.129 7	0.278 40±0.006 7	2 002.0±20.2	1 772±48.6	1 583±38.3
P26Zr1-20	24	75	999	0.07	0.050 10±0.001 1	0.178 70±0.004 1	0.025 90±0.000 4	199.0±48.8	167±3.9	165±2.4
P26Zr1-21	24	36	1 006	0.04	0.050 60±0.000 8	0.178 20±0.003 1	0.025 60±0.000 3	222.0±35.9	167±2.9	163±2.0
D309Zr1-1	3	50	106	0.47	0.054 99±0.004 7	0.193 73±0.016 1	0.025 80±0.000 5	413.0±192.0	179±13.0	164±2.9
D309Zr1-3	52	173	2 025	0.09	0.048 70±0.000 9	0.168 70±0.003 2	0.025 10±0.000 3	200.0±50.9	158±2.7	160±1.6
D309Zr1-4	255	32	894	0.04	0.114 83±0.001 1	4.215 29±0.066 3	0.265 60±0.003 4	1 877.0±16.5	1 677±12.0	1 518±17.0
D309Zr1-5	4	66	126	0.53	0.053 76±0.004 6	0.194 33±0.014 1	0.026 50±0.000 6	361.0±187.0	180±14.0	169±3.4
D309Zr1-6	3	41	86	0.47	0.055 95±0.004 1	0.194 33±0.014 1	0.025 60±0.000 5	450.0±164.0	180±11.0	163±3.2
D309Zr1-7	12	113	470	0.24	0.052 00±0.001 6	0.186 75±0.006 6	0.026 10±0.000 5	287.0±76.8	173±5.6	166±2.8
D309Zr1-9	56	235	2 124	0.11	0.051 99±0.001 0	0.182 71±0.004 0	0.025 40±0.000 2	283.0±46.2	170±3.4	161±1.4
D309Zr1-10	65	684	2 440	0.28	0.048 20±0.000 8	0.164 65±0.003 1	0.024 70±0.000 2	109.0±36.1	154±2.7	157±1.3
D309Zr1-11	319	265	829	0.32	0.130 06±0.001 5	5.873 35±0.106 0	0.326 70±0.004 2	2 099.0±20.3	1 957±15.0	1 822±20.0
D309Zr1-13	56	194	2 118	0.09	0.049 43±0.000 8	0.173 24±0.003 3	0.025 40±0.000 3	168.0±40.7	162±2.8	161±1.8
D309Zr1-14	60	279	2 428	0.11	0.047 63±0.000 8	0.156 59±0.003 2	0.023 70±0.000 2	79.7±40.7	147±2.8	151±1.4
D309Zr1-15	26	260	970	0.27	0.048 62±0.001 1	0.167 66±0.003 7	0.025 00±0.000 3	131.0±54.6	157±3.2	159±1.7
D309Zr1-16	632	110	1 516	0.07	0.153 52±0.001 4	7.816 81±0.090 3	0.369 10±0.003 5	2 387.0±214.0	2 210±10.0	2 025±16.0
D309Zr1-18	29	169	1 093	0.15	0.047 79±0.001 1	0.171 78±0.004 5	0.026 00±0.000 4	100.0±53.7	160±3.9	165±2.2
D309Zr1-19	33	201	1 434	0.14	0.051 03±0.002 3	0.151 05±0.007 2	0.021 40±0.000 3	242.0±73.1	142±6.3	136±1.9
D309Zr1-20	23	226	867	0.26	0.050 70±0.001 4	0.174 36±0.005 1	0.025 00±0.000 4	227.0±69.4	163±4.3	159±2.3
D309Zr1-21	150	153	337	0.45	0.146 45±0.001 9	7.329 17±0.155 6	0.361 90±0.006 0	2 305.0±22.0	2 152±18.0	1 991±28.0
D309Zr1-22	4	110	113	0.98	0.048 94±0.003 7	0.160 11±0.011 4	0.024 20±0.000 5	146.0±175.0	150±10.0	154±2.8
D309Zr1-23	59	306	2 226	0.14	0.049 98±0.000 9	0.170 41±0.002 8	0.024 70±0.000 2	194.0±38.8	159±2.4	157±1.1
D309Zr1-25	48	176	1 846	0.10	0.049 03±0.000 8	0.167 53±0.002 6	0.024 10±0.000 2	150.0±32.4	157±2.2	157±1.1
D309Zr1-26	45	436	1 701	0.26	0.047 06±0.001 0	0.160 34±0.003 0	0.024 70±0.000 2	53.8±149.0	151±2.6	157±1.4
D309Zr1-27	5	100	183	0.55	0.050 64±0.002 8	0.169 69±0.009 4	0.024 40±0.000 3	233.0±123.0	159±8.2	156±2.1
D309Zr1-28	63	292	2 444	0.12	0.047 78±0.000 8	0.160 89±0.002 9	0.024 90±0.000 2	87.1±36.1	151±2.5	155±1.0
D309Zr1-29	43	248	1 635	0.15	0.047 78±0.001 0	0.161 74±0.003 4	0.024 50±0.000 2	87.1±80.5	152±2.9	156±1.1
D309Zr1-30	12	205	447	0.46	0.046 75±0.001 8	0.155 72±0.006 1	0.024 10±0.000 3	35.2±92.5	146±5.3	153±1.7
D309Zr1-31	48	187	1 922	0.10	0.052 07±0.001 3	0.175 16±0.007 0	0.024 00±0.000 5	287.0±57.4	163±6.0	153±3.0

测点号	Pb/ 10^-6	Th/ 10^-6	U/ 10^-6	Th/ U	同位素比值			年龄/Ma
测点号	Pb/ 10^-6	Th/ 10^-6	U/ 10^-6	Th/ U	²⁰⁷Pb/²⁰⁶Pb ±1σ	²⁰⁷Pb/²³⁵U ±1σ	²⁰⁶Pb/²³⁸U ±1σ	²⁰⁷Pb/²⁰⁶Pb ±1σ	²⁰⁷Pb/²³⁵U ±1σ	²⁰⁶Pb/²³⁸U ±1σ
P26Zr1-1	10	71	416	0.17	0.049 20±0.003 2	0.179 40±0.012 4	0.026 40±0.000 3	160.0±150.1	168±11.6	168±2.0
P26Zr1-2	50	217	2 070	0.10	0.050 80±0.000 6	0.180 20±0.002 7	0.025 70±0.000 3	231.0±28.8	168±2.5	164±1.9
P26Zr1-3	246	198	648	0.31	0.128 50±0.001 4	6.602 20±0.109 4	0.372 60±0.005 3	2 078.0±19.6	2 060±34.1	2 042±28.8
P26Zr1-4	21	60	848	0.07	0.051 10±0.001 2	0.183 80±0.004 9	0.026 10±0.000 3	245.0±54.1	171±4.6	166±2.1
P26Zr1-5	20	197	782	0.25	0.051 50±0.001 8	0.185 30±0.007 2	0.026 10±0.000 5	263.0±78.1	173±6.7	166±3.1
P26Zr1-6	256	265	786	0.34	0.126 00±0.001 4	5.632 10±0.075 6	0.324 30±0.003 3	2 043.0±19.9	1 921±25.8	1 810±18.2
P26Zr1-7	55	89	2 417	0.04	0.051 70±0.000 6	0.175 50±0.002 5	0.024 60±0.000 2	272.0±28.5	164±2.3	157±1.5
P26Zr1-8	7	74	263	0.28	0.050 10±0.002 2	0.181 60±0.008 2	0.026 30±0.000 3	199.0±103.5	169±7.6	167±1.7
P26Zr1-9	4	62	175	0.36	0.051 50±0.003 7	0.182 20±0.013 8	0.025 70±0.000 3	262.0±162.9	170±12.9	163±1.9
P26Zr1-10	4	31	180	0.17	0.051 70±0.004 8	0.175 70±0.016 1	0.024 60±0.000 3	274.0±210.9	164±15.0	157±1.8
P26Zr1-11	34	35	180	0.20	0.106 90±0.001 3	2.783 30±0.062 2	0.188 80±0.003 8	1 748.0±22.1	1 351±30.2	1 115±22.4
P26Zr1-12	5	87	188	0.46	0.051 80±0.003 1	0.175 60±0.010 5	0.024 60±0.000 3	279.0±136.9	164±9.8	156±1.6
P26Zr1-13	224	169	1 509	0.11	0.105 70±0.001 2	2.164 20±0.033 5	0.148 50±0.001 9	1 726.0±20.6	1 170±18.1	893±11.2
P26Zr1-14	101	82	1 138	0.07	0.104 20±0.001 4	1.293 30±0.041 1	0.090 00±0.002 4	1 700.0±23.9	843±26.8	556±15.0
P26Zr1-15	3	47	103	0.45	0.049 80±0.006 6	0.176 60±0.026 3	0.257 00±0.000 4	186.0±309.9	165±22.0	164±2.3
P26Zr1-16	24	16	112	0.14	0.121 50±0.001 5	3.572 60±0.080 1	0.213 30±0.004 1	1 978.0±22.6	1 543±34.6	1 247±24.1
P26Zr1-17	7	76	280	0.27	0.049 60±0.002 2	0.177 60±0.008 6	0.026 00±0.000 3	177.0±105.5	166±8.0	165±1.9
P26Zr1-18	4	31	139	0.22	0.048 40±0.004 2	0.173 60±0.015 1	0.026 00±0.000 3	177.0±202.7	162±14.2	166±2.0
P26Zr1-19	247	181	860	0.21	0.123 20±0.001 4	4.727 60±0.129 7	0.278 40±0.006 7	2 002.0±20.2	1 772±48.6	1 583±38.3
P26Zr1-20	24	75	999	0.07	0.050 10±0.001 1	0.178 70±0.004 1	0.025 90±0.000 4	199.0±48.8	167±3.9	165±2.4
P26Zr1-21	24	36	1 006	0.04	0.050 60±0.000 8	0.178 20±0.003 1	0.025 60±0.000 3	222.0±35.9	167±2.9	163±2.0
D309Zr1-1	3	50	106	0.47	0.054 99±0.004 7	0.193 73±0.016 1	0.025 80±0.000 5	413.0±192.0	179±13.0	164±2.9
D309Zr1-3	52	173	2 025	0.09	0.048 70±0.000 9	0.168 70±0.003 2	0.025 10±0.000 3	200.0±50.9	158±2.7	160±1.6
D309Zr1-4	255	32	894	0.04	0.114 83±0.001 1	4.215 29±0.066 3	0.265 60±0.003 4	1 877.0±16.5	1 677±12.0	1 518±17.0
D309Zr1-5	4	66	126	0.53	0.053 76±0.004 6	0.194 33±0.014 1	0.026 50±0.000 6	361.0±187.0	180±14.0	169±3.4
D309Zr1-6	3	41	86	0.47	0.055 95±0.004 1	0.194 33±0.014 1	0.025 60±0.000 5	450.0±164.0	180±11.0	163±3.2
D309Zr1-7	12	113	470	0.24	0.052 00±0.001 6	0.186 75±0.006 6	0.026 10±0.000 5	287.0±76.8	173±5.6	166±2.8
D309Zr1-9	56	235	2 124	0.11	0.051 99±0.001 0	0.182 71±0.004 0	0.025 40±0.000 2	283.0±46.2	170±3.4	161±1.4
D309Zr1-10	65	684	2 440	0.28	0.048 20±0.000 8	0.164 65±0.003 1	0.024 70±0.000 2	109.0±36.1	154±2.7	157±1.3
D309Zr1-11	319	265	829	0.32	0.130 06±0.001 5	5.873 35±0.106 0	0.326 70±0.004 2	2 099.0±20.3	1 957±15.0	1 822±20.0
D309Zr1-13	56	194	2 118	0.09	0.049 43±0.000 8	0.173 24±0.003 3	0.025 40±0.000 3	168.0±40.7	162±2.8	161±1.8
D309Zr1-14	60	279	2 428	0.11	0.047 63±0.000 8	0.156 59±0.003 2	0.023 70±0.000 2	79.7±40.7	147±2.8	151±1.4
D309Zr1-15	26	260	970	0.27	0.048 62±0.001 1	0.167 66±0.003 7	0.025 00±0.000 3	131.0±54.6	157±3.2	159±1.7
D309Zr1-16	632	110	1 516	0.07	0.153 52±0.001 4	7.816 81±0.090 3	0.369 10±0.003 5	2 387.0±214.0	2 210±10.0	2 025±16.0
D309Zr1-18	29	169	1 093	0.15	0.047 79±0.001 1	0.171 78±0.004 5	0.026 00±0.000 4	100.0±53.7	160±3.9	165±2.2
D309Zr1-19	33	201	1 434	0.14	0.051 03±0.002 3	0.151 05±0.007 2	0.021 40±0.000 3	242.0±73.1	142±6.3	136±1.9
D309Zr1-20	23	226	867	0.26	0.050 70±0.001 4	0.174 36±0.005 1	0.025 00±0.000 4	227.0±69.4	163±4.3	159±2.3
D309Zr1-21	150	153	337	0.45	0.146 45±0.001 9	7.329 17±0.155 6	0.361 90±0.006 0	2 305.0±22.0	2 152±18.0	1 991±28.0
D309Zr1-22	4	110	113	0.98	0.048 94±0.003 7	0.160 11±0.011 4	0.024 20±0.000 5	146.0±175.0	150±10.0	154±2.8
D309Zr1-23	59	306	2 226	0.14	0.049 98±0.000 9	0.170 41±0.002 8	0.024 70±0.000 2	194.0±38.8	159±2.4	157±1.1
D309Zr1-25	48	176	1 846	0.10	0.049 03±0.000 8	0.167 53±0.002 6	0.024 10±0.000 2	150.0±32.4	157±2.2	157±1.1
D309Zr1-26	45	436	1 701	0.26	0.047 06±0.001 0	0.160 34±0.003 0	0.024 70±0.000 2	53.8±149.0	151±2.6	157±1.4
D309Zr1-27	5	100	183	0.55	0.050 64±0.002 8	0.169 69±0.009 4	0.024 40±0.000 3	233.0±123.0	159±8.2	156±2.1
D309Zr1-28	63	292	2 444	0.12	0.047 78±0.000 8	0.160 89±0.002 9	0.024 90±0.000 2	87.1±36.1	151±2.5	155±1.0
D309Zr1-29	43	248	1 635	0.15	0.047 78±0.001 0	0.161 74±0.003 4	0.024 50±0.000 2	87.1±80.5	152±2.9	156±1.1
D309Zr1-30	12	205	447	0.46	0.046 75±0.001 8	0.155 72±0.006 1	0.024 10±0.000 3	35.2±92.5	146±5.3	153±1.7
D309Zr1-31	48	187	1 922	0.10	0.052 07±0.001 3	0.175 16±0.007 0	0.024 00±0.000 5	287.0±57.4	163±6.0	153±3.0

样品号	岩性	SiO₂	Al₂O₃	FeO_T	CaO	MgO	K₂O	Na₂O	MnO	P₂O₅	TiO₂	烧失量	总量		K₂O/ Na₂O	K₂O+ Na₂O		A/CNK		A/NK		Mg^#
P26-1	锉草沟黑云母二长花岗岩	73.70	13.47	1.32	0.70	0.330	4.50	3.56	0.020	0.040	0.210	1.36	99.29		1.26	8.06		1.12		1.26		0.30
P26-2		73.52	13.88	1.33	1.19	0.660	4.18	3.80	0.025	0.044	0.180	1.10	99.99		1.10	7.98		1.07		1.29		0.46
P26-3		72.81	14.74	1.26	0.90	0.210	4.38	3.88	0.029	0.031	0.180	1.01	99.28		1.13	8.26		1.16		1.33		0.26
P26-4		74.32	13.71	0.56	0.42	0.071	5.65	3.65	0.013	0.013	0.042	0.87	99.30		1.55	9.30		1.06		1.13		0.20
D309-1	刘家堡子二云母二长花岗岩	75.20	13.60	1.53	1.08	0.310	4.13	3.57	0.039	0.045	0.110	0.87	100.29		1.16	7.70		1.11		1.31		0.31
D309-2		75.00	13.40	1.53	1.29	0.270	3.92	3.52	0.030	0.060	0.160	0.54	99.65		1.11	7.44		1.08		1.34		0.26
D309-3		76.60	12.50	1.34	1.33	0.310	4.02	3.44	0.037	0.027	0.150	0.50	100.27		1.17	7.46		1.00		1.25		0.30
D309-4		75.50	13.20	1.20	1.00	0.150	4.68	3.43	0.018	0.018	0.095	0.68	99.91		1.36	8.11		1.05		1.23		0.20
样品号	岩性	Ni	Ba	Co	Cr	Nb	Rb	Sr	V	Zr	Hf	Ta	Li		Th	U		La		Ce		Pr
P26-1	锉草沟黑云母二长花岗岩	1.57	1 390	1.56	16.70	10.30	159	444	6.89	157.0	4.84	1.14	14.40		10.6	2.06		23.3		58.6		4.66
P26-2		1.72	766	1.07	17.50	10.30	133	287	4.85	114.0	3.71	0.54	10.10		8.83	1.62		24.4		42.8		4.81
P26-3		2.33	1 028	1.11	16.90	10.10	148	474	6.46	67.5	2.29	0.69	11.30		7.32	1.02		24.7		44.5		4.83
P26-4		1.88	289	1.21	24.10	10.20	225	128	1.45	46.9	2.33	0.78	6.17		7.50	1.98		13.9		25.9		2.96
D309-1	刘家堡子二云母二长花岗岩	3.36	768	1.07	6.78	11.80	154	249	3.95	50.2	2.30	1.45	25.1		8.40	1.78		20.2		38.1		3.87
D309-2		3.79	871	1.25	6.25	9.67	107	454	6.35	76.0	2.03	0.38	19.2		9.84	1.01		41.5		70.5		7.51
D309-3		3.94	1 312	0.98	7.68	9.67	121	356	4.24	118.0	3.69	0.81	23.8		7.38	1.89		30.0		51.5		5.34
D309-4		4.09	785	0.94	6.17	9.47	155	245	1.77	82.0	3.14	0.29	12.3		13.00	1.01		38.9		67.4		7.36
样品号	岩性	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Y	∑REE			LREE/ HREE		(La/Yb)_N		δEu
P26-1	锉草沟黑云母二长花岗岩	16.2	1.96	0.90	2.39	0.22	1.52	0.25	0.43	0.097	0.75	0.110	5.60	111.387			18.31		20.94		1.27
P26-2		17.8	2.78	0.90	2.51	0.28	1.36	0.20	0.24	0.036	0.40	0.067	3.95	98.583			18.36		41.13		1.02
P26-3		16.6	2.38	0.93	2.45	0.26	1.15	0.18	0.20	0.031	0.46	0.110	3.03	98.781			19.41		36.20		1.17
P26-4		10.3	2.11	0.43	2.02	0.35	2.32	0.45	1.18	0.230	1.32	0.230	12.10	63.700			6.86		7.10		0.63
D309-1	刘家堡子二云母二长花岗岩	13.9	2.53	1.12	2.58	0.37	2.08	0.45	1.08	0.170	1.17	0.230	12.10	87.850			9.81		11.64		1.33
D309-2		26.2	4.03	1.53	4.97	0.60	1.77	0.29	0.61	0.082	0.75	0.190	6.80	160.532			16.33		37.31		1.04
D309-3		19.7	2.89	1.51	3.39	0.47	1.48	0.28	0.71	0.098	1.02	0.180	7.28	118.568			14.54		19.83		1.47
D309-4		25.6	4.86	1.36	4.50	0.73	2.00	0.38	0.87	0.082	0.90	0.210	9.05	155.152			15.04		29.14		0.87

样品号	岩性	SiO₂	Al₂O₃	FeO_T	CaO	MgO	K₂O	Na₂O	MnO	P₂O₅	TiO₂	烧失量	总量		K₂O/ Na₂O	K₂O+ Na₂O		A/CNK		A/NK		Mg^#
P26-1	锉草沟黑云母二长花岗岩	73.70	13.47	1.32	0.70	0.330	4.50	3.56	0.020	0.040	0.210	1.36	99.29		1.26	8.06		1.12		1.26		0.30
P26-2		73.52	13.88	1.33	1.19	0.660	4.18	3.80	0.025	0.044	0.180	1.10	99.99		1.10	7.98		1.07		1.29		0.46
P26-3		72.81	14.74	1.26	0.90	0.210	4.38	3.88	0.029	0.031	0.180	1.01	99.28		1.13	8.26		1.16		1.33		0.26
P26-4		74.32	13.71	0.56	0.42	0.071	5.65	3.65	0.013	0.013	0.042	0.87	99.30		1.55	9.30		1.06		1.13		0.20
D309-1	刘家堡子二云母二长花岗岩	75.20	13.60	1.53	1.08	0.310	4.13	3.57	0.039	0.045	0.110	0.87	100.29		1.16	7.70		1.11		1.31		0.31
D309-2		75.00	13.40	1.53	1.29	0.270	3.92	3.52	0.030	0.060	0.160	0.54	99.65		1.11	7.44		1.08		1.34		0.26
D309-3		76.60	12.50	1.34	1.33	0.310	4.02	3.44	0.037	0.027	0.150	0.50	100.27		1.17	7.46		1.00		1.25		0.30
D309-4		75.50	13.20	1.20	1.00	0.150	4.68	3.43	0.018	0.018	0.095	0.68	99.91		1.36	8.11		1.05		1.23		0.20
样品号	岩性	Ni	Ba	Co	Cr	Nb	Rb	Sr	V	Zr	Hf	Ta	Li		Th	U		La		Ce		Pr
P26-1	锉草沟黑云母二长花岗岩	1.57	1 390	1.56	16.70	10.30	159	444	6.89	157.0	4.84	1.14	14.40		10.6	2.06		23.3		58.6		4.66
P26-2		1.72	766	1.07	17.50	10.30	133	287	4.85	114.0	3.71	0.54	10.10		8.83	1.62		24.4		42.8		4.81
P26-3		2.33	1 028	1.11	16.90	10.10	148	474	6.46	67.5	2.29	0.69	11.30		7.32	1.02		24.7		44.5		4.83
P26-4		1.88	289	1.21	24.10	10.20	225	128	1.45	46.9	2.33	0.78	6.17		7.50	1.98		13.9		25.9		2.96
D309-1	刘家堡子二云母二长花岗岩	3.36	768	1.07	6.78	11.80	154	249	3.95	50.2	2.30	1.45	25.1		8.40	1.78		20.2		38.1		3.87
D309-2		3.79	871	1.25	6.25	9.67	107	454	6.35	76.0	2.03	0.38	19.2		9.84	1.01		41.5		70.5		7.51
D309-3		3.94	1 312	0.98	7.68	9.67	121	356	4.24	118.0	3.69	0.81	23.8		7.38	1.89		30.0		51.5		5.34
D309-4		4.09	785	0.94	6.17	9.47	155	245	1.77	82.0	3.14	0.29	12.3		13.00	1.01		38.9		67.4		7.36
样品号	岩性	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Y	∑REE			LREE/ HREE		(La/Yb)_N		δEu
P26-1	锉草沟黑云母二长花岗岩	16.2	1.96	0.90	2.39	0.22	1.52	0.25	0.43	0.097	0.75	0.110	5.60	111.387			18.31		20.94		1.27
P26-2		17.8	2.78	0.90	2.51	0.28	1.36	0.20	0.24	0.036	0.40	0.067	3.95	98.583			18.36		41.13		1.02
P26-3		16.6	2.38	0.93	2.45	0.26	1.15	0.18	0.20	0.031	0.46	0.110	3.03	98.781			19.41		36.20		1.17
P26-4		10.3	2.11	0.43	2.02	0.35	2.32	0.45	1.18	0.230	1.32	0.230	12.10	63.700			6.86		7.10		0.63
D309-1	刘家堡子二云母二长花岗岩	13.9	2.53	1.12	2.58	0.37	2.08	0.45	1.08	0.170	1.17	0.230	12.10	87.850			9.81		11.64		1.33
D309-2		26.2	4.03	1.53	4.97	0.60	1.77	0.29	0.61	0.082	0.75	0.190	6.80	160.532			16.33		37.31		1.04
D309-3		19.7	2.89	1.51	3.39	0.47	1.48	0.28	0.71	0.098	1.02	0.180	7.28	118.568			14.54		19.83		1.47
D309-4		25.6	4.86	1.36	4.50	0.73	2.00	0.38	0.87	0.082	0.90	0.210	9.05	155.152			15.04		29.14		0.87