柴-欧微地块花岗岩地球化学和Nd-Sr-Pb同位素组成: 基底性质和构造属性启示

陈能松; 王新宇; 张宏飞; 孙敏; 李晓彦; 陈强

Volume 32 Issue 1

Jan. 2007

Turn off MathJax

Article Contents

Article Navigation > Earth Science > 2007 > 32(1): 7-21

CHEN Neng-song, WANG Xin-yu, ZHANG Hong-fei, SUN Min, LI Xiao-yan, CHEN Qiang, 2007. Geochemistry and Nd-Sr-Pb Isotopic Compositions of Granitoids from Qaidam and Oulongbuluke Micro-Blocks, NW China: Constraints on Basement Nature and Tectonic Affinity. Earth Science, 32(1): 7-21.

Citation:

PDF( 1645 KB)

Geochemistry and Nd-Sr-Pb Isotopic Compositions of Granitoids from Qaidam and Oulongbuluke Micro-Blocks, NW China: Constraints on Basement Nature and Tectonic Affinity

1.
Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China
2.
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
3.
Department of Earth Sciences, The University of Hong Kong, Hong Kong

Received Date: 2006-06-26
Publish Date: 2007-01-25

Abstract

Abstract

The formation of major-and trace-elemental and Sr-Nd-Pb isotopic geochemistries in Early Paleoproterozoic Mohe pluton and Early Triassic Cahanno pluton of the Oulongbuluke micro-block and Neoproterozoic Shaliuhe pluton, Late-Permian to Early-Triaasic Xiangride pluton and Late-Triassic Keri pluton of the Qaidam Block of northwestern China, were investigated. The Shaliuhe pluton and Keri muscovite pluton are characterized by S-type and paraaluminium granite, the others are by Ⅰ-type granodiorite or granite. It is concluded from the comparsion of T_DM and ε_Nd(t) that the magma source area of the Shaliuhe granite belongs to the Ⅱ-type metabasement of the Oulongbuluke micro-block, and the magma of the rest of the plutons could not originate from the exposed supracurstal sequences. The T_DM are clustered at ~1.5-2.3 Ga and 0.9-1.3 Ga, with peak value of ~ 1.2 Ga, ~1.6 Ga and ~2.05 Ga for both granitoids and meta-supracurstal rocks, ~2.5 Ga and ².8 Ga are solely distributed in the Oulongbuluke micro-block. The two micro-blocks have ratios of (²⁰⁶Pb/²⁰⁴Pb)_t, (²⁰⁷Pb/²⁰⁴Pb)_t and (²⁰⁶Pb/²⁰⁴Pb)_t generally higher than 18, 15.5 and 38, respectively. These data suggest that the basements of the Oulongbuluke micro-blocks and the Qaidam micro-blocks are geochemically akin to that of the Yangtze Block, and that the Yangtze Block Domain can be extended northwestwards to the micro blocks on both sides of the Altyn-Tagh fault, and that the UHP-HP tectonic belt along the northern margin of the Qaidam micro-block is only a convergent boundary among the earlier broken-up micro-blocks within the Yangtze Block.
- Nd-Sr-Pb isotopic geochemistry,
- granitoids,
- basemental attribute,
- Qaidam and Oulongbuluke micro-blocks,
- NW China

FullText(HTML)

References(70)

References

Chen, B. W., Wang, Y. B., 1996. Some characteristics of orogenic belts in Qinghai-Tibet Plateau. Journal of Southeastern Asian Earth Sciences, 13: 237-242. doi: 10.1016/0743-9547(96)83685-3

Chen, J. F., Yan, J., Xie, Z., et al., 2001. Nd and Sr isotopic compositions of igneous rocks from the Lower Yangtze region in eastern China: Constraints on sources. Phys. Gem. Earth (A), 26 (9-10): 719-731. doi: 10.1016/S1464-1895(01)00122-3

Chen, N. S., Li, H. M., He, L., et al., 2002. Polygonal rule for assessing the discordant U-Pb data of single-grain zircon by TIMS: Taking high-grade metamorphic rocks from Dabie and East Kunlun Mountains as examples. Geological Science and Technology Information, 21 (3): 24-29 (in Chinese with English abstract).

DePaolo, D. J., 1988. Neodynium isotope geochemistry: An introduction. Springer-Verlag, Berlin, 189.

Dickin, A. P., 1998. Nd isotope mapping of a cryptic continental suture, Grenville Province of Ontario. Precambrian Research, 91: 433-444. doi: 10.1016/S0301-9268(98)00062-X

Downes, H., Duthou, J. L., 1988. Isotopic and trace element arguments for the lower crustal origin of Hercynian granitoids and pre-Hercynian orthogneisses, Massif Central (France). Chemical Geology, 68: 291-308. doi: 10.1016/0009-2541(88)90027-7

Farmer, G. L., 1992. Magmas as tracer of lower crustal composition: An isotopic approach. In: Foutain, D. M., Arculus, R., Kay, R. W., eds., Continental lower crustal development in geotectonics. Elsevier, Amsterdam, 363-390.

Ge, X. H., Liu, J. L., 2000. Broken "Western China Craton". Acta Petrologica Sinica, 16 (1): 59-66 (in Chinese with English abstract).

Huang, X., DePaolo, D. J., 1989. Study of sources of Paleozoic granitoids and the basement of South China by means of Nd-Sr isotopes. Acta Petrologica Sinica, 5 (1): 28-36 (in Chinese with English abstract).

Jahn, B. M., Condie, K. C., 1995. Evolution of the Kaapvaal craton as viewed from geochemical and Sr-Nd isotopic analyses of intracratonic pelites. Geochim. Cosmochim. Acta, 59: 2239-2258. doi: 10.1016/0016-7037(95)00103-7

Jahn, B. M., Wu, F. Y., Capdevila, R., et al., 2001. Highly evolved juvenile granites with tetrad REE patterns: The Woduhe and Baerzhe granites from the Great Xing'an (Khingan) Mountains in NE China. Lithos, 59: 171-198. doi: 10.1016/S0024-4937(01)00066-4

Liew, T. C., Hofmann, A. W., 1988. Precambrian crustal components, plutonic assimilations, plate environment of the Hercynian fold belt of Central Europe: Indications from a Nd and Sr isotopic study. Contrib. Mineral. Petrol. , 98: 129-138. doi: 10.1007/BF00402106

Ling, H. F., Xu, S. J., Shen, W. Z., et al., 1998. Nd, Sr, Pb and O isotopic compositions of Late Proterozoic Gezong- and Donggu-granites in the west margin of Yangtze plate and comparison with other coeval granitoids. Acta Petrologica Sinica, 14 (3): 269-277 (in Chinese with English abstract).

Liu, C. D., Mo, X. X., Luo, Z. H., et al., 2003. Pb-Sr-Nd-O isotope characteristics of granitoids in East Kunlun orogenic belt. Acta Geoscientica Sinica, 24 (6): 584-588 (in Chinese with English abstract).

Liu, C. D., Mo, X. X., Luo, Z. H., et al., 2004. Crust-mantle magma mixing in East Kunlun: Evidence from zircon SHRIMP chronology. Chinese Science Bulletin, 49 (6): 596-602 (in Chinese). doi: 10.1360/csb2004-47-6-596

Lu, S. N., Li, H. K., Chen, Z. H., et al., 2003. Meso-Neoproterozoic geological evolution in the Qinling orogeny and its response to the supercontinental events of China. Geological Publishing House, Beijing, 1-194 (in Chinese).

Lu, S. N., Wang, H. C., Li, H. K., et al., 2002b. Redifinition of the "Dakendaban Group" on the north margin of the Qaidam basin. Geological Bulletin of China, 21 (1): 19-23 (in Chinese with English abstract).

Lu, S. N., Yu, H. F., Jin, W., et al., 2002a. Microcontinents on the eastern margin of Tarim paleocontinent. Acta Petrologica et Mineralogica, 24 (4): 317-326 (in Chinese with English abstract).

Lu, S. N., Yu, H. F., Zhao, F. Q., et al., 2002c. Preliminary study of Precambrian geology in the North Tibet-Qinghai Plateau. Geological Publishing House, Beijing, 1-125 (in Chinese).

Ma, C. Q., Ehlers, E., Xu, C. H., et al., 2000. The roots of the Dabieshan ultrahigh-pressure metamorphic terrane: Constraints from geochemistry and Nd-Sr isotope systematics. Precambrian Research, 102: 279-301. doi: 10.1016/S0301-9268(00)00069-3

Maniar, P. D., Piccoli, P. M., 1989. Tectonic discrimination of granitoids. Geological Society of American Bulletin, 101: 635-643. doi: 10.1130/0016-7606(1989)101<0635:TDOG>2.3.CO;2

Miller, R. G., O'Nions, R. K., 1985. Source of Precambrian chemical and clastic sediments. Nature, 314: 325-330. doi: 10.1038/314325a0

Pearce, J. A., Harris, N. B. W., Tindle, A. G., 1984. Trace element discrimination diagrams for the tectonic interpretation of granitic rocks. Journal of Petrology, 54: 956-983.

Qi, L., Hu, J., Gregoire, D. C., 2000. Determination of trace elements in granites by inductively coupled plasma mass spectrometry. Talanta, 51: 507-513. doi: 10.1016/S0039-9140(99)00318-5

Qinghai Bureau of Geology and Mineral Resources, 1997. Petrological strata in Qinghai Province. China University of Geosciences Press, Wuhan (in Chinese).

Shand, S. J., 1927. Eruptive rocks. D. Van Nostrand Company, New York, 360.

Shen, W. Z., Zhu, J. C., Liu, C. S., et al., 1993. Sm-Nd isotopic study of basement metamorphic rocks in South China and its constraint on material sources of granitoids. Acta Petrologica Sinica, 9 (2): 115-124 (in Chinese with English abstract).

Tomascak, P. B., Krogstad, E. J., Walker, R. J., 1996. Nature of the crust in Maine, USA: Evidence from the Sebago batholith. Contributions to Mineralogy and Petrology, 125: 45- 59. doi: 10.1007/s004100050205

Wan, Y. S., Xu, Z. Q., Yang, J. S., et al., 2003. The Precambrian high-grade basement of the Qilian terrane and neighboring areas: Its ages and compositions. Acta Geoscientica Sinica, 24 (4): 319-324 (in Chinese with English abstract).

Wang, H. C., Lu, S. N., Yuan, G. B., et al., 2002. Tectonic setting and age of the "Tanjianshan Group" on the northern margin of the Qaidam basin. Geological Bulletin of China, 22 (7): 487-493.

Wu, F. Y., Jahn, B. M., Wilde, S. A., et al., 2000. Phanerozoic crustal growth: U-Pb and Sr-Nd isotopic evidence from the granites in northeastern China. Tectonophysics, 328: 89-113. doi: 10.1016/S0040-1951(00)00179-7

Xin, H. T., Zhou, S. J., Wang, H. C., et al., 2004. On reuse of Shaliuhe Group in the northern margin of Qaidam basin. Northwestern Geology, 37 (1): 26-33 (in Chinese with English abstract).

Yang, J. S., Xu, Z. Q., Song, S. G., et al., 2000. Discovery of eclogite in Dulan, Qinghai Province and its significance for studying the HP-UHP metamorphic belt along the central orogenic belt of China. Acta Geol. Sin. , 74 (2): 156-168 (in Chinese with English abstract).

Yin, H. F., Zhang, K. X., Chen, N. S., et al., 2003. Regional geological report of Donggi Conag Hu map (scale: 1∶250 000) of the People's Republic of China. China University of Geosciences Press, Wuhan, 1-457 (in Chinese).

Zhang, B. R., Gao, S., Zhang, H. F., et al., 2002. Geochemistry of Qinling orogenic belt. Science Press, Beijing, 1-187 (in Chinese).

Zhang, H. F., Gao, S., Zhong, Z. Q., et al, 2002. Geochemical and Sr-Nd-Pb isotopic compositions of Cretaceous granitoids: Constraints on tectonic framework and crustal structure of the Dabieshan ultrahigh-pressure metamorphic belt, China. Chemical Geology, 186: 281-299. doi: 10.1016/S0009-2541(02)00006-2

Zhang, H. F., Jin, L. L., Zhang, L., et al., 2005. Geochemical and Pb-Sr-Nd isotopic compositions of granitoids from western Qinling belt: Constrains on basement nature and tectonic affinity. Science in China (Series D), 35 (10): 914-926 (in Chinese).

Zhang, H. F., Jin, L. L., Zhang, L., et al., 2006. Pb and Nd isotopic compositions of basement and granitoid in the Qilianshan: Constraints on tectonic affinity. Earth Science—Journal of China University of Geosciences, 31 (1): 59-65 (in Chinese with English abstract).

Zhang, H. F., Ouyang, J. P., Ling, W. L., et al., 1997. Pb, Sr, Nd isotope composition of Ningshan granitoids, South Qinling and their deep geological information. Acta Petrologica et Mineralogica, 16 (1): 22-34 (in Chinese with English abstract).

Zhang, J. X., Meng, F. C., Wan, Y. S., et al., 2003b. Early Paleozoic tectono-thermal event of the Jinshuikou Group on the southern margin of Qaidam: Zircon U-Pb SHRIMP age evidence. Geological Bulletin of China, 22 (6): 397-404 (in Chinese with English abstract).

Zhang, J. X., Wan, Y. S., Meng, F. C., et al., 2003a. Geochemistry, Sm-Nd and U-Pb isotope study of gneisses (schists) enclosing eclogues in the North Qaidam Mountains—Deeply subducted Precambrian metamorphic basement? Acta Petrologica Sinica, 19 (3): 443-451 (in Chinese with English abstract).

Zhang, L. G., Liu, J. X., Wang, K. F., et al., 1995. Block-geology of eastern Asia lithosphere—Isotope geochemistry and dynamics of upper mantle, basement and granite. Science Press, Beijing, 252 (in Chinese).

Zhang, L. G., Wang, K. F., Chen, Z. S., et al., 1993. Feldspar lead isotope composition of Mesozoic granitoids and lead isotopic provinces of eastern China. Chinese Science Bulletin, 38 (3): 254-257 (in Chinese). doi: 10.1360/csb1993-38-3-254

Zhu, B. Q., 1993. Tri-dimension special topological diagrams of ore lead isotopes and their application to the division of geochemical provinces and mineralizations. Geochimica, 3: 209-216 (in Chinese with English abstract).

陈能松, 李惠民, 何蕾, 等, 2002. 热离子质谱测定的颗粒级锆石U-Pb不一致年龄数据处理的多边形准则及其应用. 地质科技情报, 21 (3): 24-29. doi: 10.3969/j.issn.1000-7849.2002.03.005

葛肖虹, 刘俊来, 2000. 被肢解的"西域克拉通". 岩石学报, 16 (1): 59-66. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200001006.htm

黄萱, DePaolo, D. J., 1989. 华南古生代花岗岩Nd-Sr同位素研究及华南基底. 岩石学报, 5 (1): 28-36. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB198901003.htm

凌洪飞, 徐士进, 沈渭洲, 等, 1998. 格宗、东谷岩体Nd、Sr、Pb、O同位素特征及其与扬子板块边缘其它晋宁期花岗岩对比. 岩石学报, 14 (3): 269-277. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB803.000.htm

刘成东, 莫宣学, 罗照华, 等, 2003. 东昆仑造山带花岗岩类Pb-Sr-Nd-O同位素特征. 地球学报, 24 (6): 584-588. doi: 10.3321/j.issn:1006-3021.2003.06.020

刘成东, 莫宣学, 罗照华, 等, 2004. 东昆仑壳-幔岩浆混合作用: 来自锆石SHRIMP年代学证据. 科学通报, 49 (6): 596-602. doi: 10.3321/j.issn:0023-074X.2004.06.018

陆松年, 李怀坤, 陈志宏, 等, 2003. 秦岭中-新元古代地质演化及对Rodina超级大陆事件的响应. 北京: 地质出版社, 1-194.

陆松年, 于海峰, 金巍, 等, 2002a. 塔里木古大陆东缘的微大陆块体群. 岩石矿物学杂志, 21 (4): 317-326. https://www.cnki.com.cn/Article/CJFDTOTAL-YSKW200204002.htm

陆松年, 王惠初, 李怀坤, 等, 2002b. 柴达木盆地北缘"达肯大坂群"的再厘定, 地质通报, 21 (1): 19-23. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD200201003.htm

陆松年, 于海峰, 赵凤清, 等, 2002c. 青藏高原北部前寒武纪地质初探. 北京: 地质出版社, 1-125.

青海地质矿产局, 1997. 青海省岩石地层. 武汉: 中国地质大学出版社, 21-25. https://www.cnki.com.cn/Article/CJFDTOTAL-GTJL199501000.htm

沈渭洲, 朱金初, 刘昌实, 等, 1993. 华南基底变质岩的Sm-Nd同位素及其对花岗岩类物质来源的制约. 岩石学报, 9 (2): 115-124. doi: 10.3321/j.issn:1000-0569.1993.02.001

万渝生, 许志琴, 杨经绥, 等, 2003. 祁连造山带及其邻区前寒武纪深变质基底的时代及组成. 地球学报, 24 (4): 319-324. doi: 10.3321/j.issn:1006-3021.2003.04.005

王惠初, 陆松年, 袁桂邦, 等, 2003. 柴达木盆地北缘滩间山群的构造属性及形成时代. 现代地质, 22 (7): 487-493. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD200307004.htm

辛后田, 周世军, 王惠初, 等, 2004. 柴达木盆地北缘"沙柳河岩群"的重新启用. 西北地质, 37 (1): 26-33. doi: 10.3969/j.issn.1009-6248.2004.01.005

杨经绥, 许志琴, 宋述光, 等, 2000. 青海都兰榴辉岩的发现及对中国中央造山带内高压-超高压变质带研究的意义. 地质学报, 74 (2): 156-168. https://www.cnki.com.cn/Article/CJFDTOTAL-DZXE200002006.htm

殷鸿福, 张克信, 陈能松, 等, 2003. 中华人民共和国区域地质调查报告(1∶25万冬给措纳湖幅). 武汉: 中国地质大学出版社, 1-457.

张本仁, 高山, 张宏飞, 等, 2002. 秦岭造山带地球化学. 北京: 科学出版社, 1-187. https://cdmd.cnki.com.cn/Article/CDMD-11415-1016067778.htm

张宏飞, 靳兰兰, 张利, 等, 2005. 西秦岭花岗岩类地球化学和Pb-Sr-Nd同位素组成限制基底性质及其构造属性. 中国科学D辑, 35 (10): 914-926. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200510001.htm

张宏飞, 靳兰兰, 张利, 等, 2006. 基底岩系和花岗岩类Pb-Nd同位素组成限制祁连山带的构造属性. 地球科学——中国地质大学学报, 31 (1): 59-65. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200601008.htm

张宏飞, 欧阳建平, 凌文黎, 等, 1997. 南秦岭宁陕地区花岗岩类Pb, Sr, Nd同位素组成及其深部地质信息. 岩石矿物学杂志, 16 (1): 22-34. https://www.cnki.com.cn/Article/CJFDTOTAL-YSKW201406005.htm

张建新, 万渝生, 孟繁聪, 等, 2003a. 柴北缘夹榴辉岩的片麻岩(片岩) 地球化学、Sm-Nd和U-Pb同位素研究——深俯冲的前寒武纪变质基底?岩石学报, 19 (3): 443-451. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200303007.htm

张建新, 孟繁聪, 万渝生, 等, 2003b. 柴达木盆地南缘金水口群的早古生代构造热事件: 锆石U-Pb SHRIMP年龄证据. 地质通报, 22 (6): 397-404. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201406001.htm

张理刚, 王可法, 陈振胜, 等, 1993. 中国东部中生代花岗岩长石铅同位素组成与同位素省划分. 科学通报, 38 (3): 254-257. https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB199303019.htm

张理刚, 刘敬秀, 王可法, 等, 1995. 东亚岩石圈块体地质——上地幔基底和花岗岩同位素地球化学及其动力学. 北京: 科学出版社, 252.

朱炳泉, 1993. 矿物Pb同位素三维空间拓扑图解用于地球化学省与矿种区划. 地球化学, 3: 209-216. doi: 10.3321/j.issn:0379-1726.1993.03.001

Relative Articles

Supplements(0)

Cited By

Proportional views