北祁连肃南一带奥陶纪硅质岩沉积地球化学特征及其多岛洋构造意义

杜远生; 朱杰; 顾松竹

Volume 31 Issue 1

Jan. 2006

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DU Yuan-sheng, ZHU Jie, GU Song-zhu, 2006. Sedimentary Geochemistry and Tectonic Significance of Ordovician Cherts in Sunan, North Qilian Mountains. Earth Science, 31(1): 101-109.

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DU Yuan-sheng, ZHU Jie, GU Song-zhu, 2006. Sedimentary Geochemistry and Tectonic Significance of Ordovician Cherts in Sunan, North Qilian Mountains. Earth Science, 31(1): 101-109.

DU Yuan-sheng, ZHU Jie, GU Song-zhu, 2006. Sedimentary Geochemistry and Tectonic Significance of Ordovician Cherts in Sunan, North Qilian Mountains. Earth Science, 31(1): 101-109.

Citation:

DU Yuan-sheng, ZHU Jie, GU Song-zhu, 2006. Sedimentary Geochemistry and Tectonic Significance of Ordovician Cherts in Sunan, North Qilian Mountains. Earth Science, 31(1): 101-109.

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Sedimentary Geochemistry and Tectonic Significance of Ordovician Cherts in Sunan, North Qilian Mountains

Faculty of Eurth Sciences, China Universiy of Geosciences, Wwhan 430074, China

Received Date: 2005-03-15
Publish Date: 2006-01-25

Abstract

Abstract

The North Qilian orogenic belt in northwestern China is an elongate tectonic unit situated between the North China plate in the north and the Qaidam plate in the south. It is a result of the collision of two plates during the Caledonian stage. The Sunan area, from Baiquanmen to Bianmagou, is located in the western sector of the North Qilian mountains, crossing three tectonic units (back-arc basin, island-arc and trench subduction complex) and three ophiolite zones (Baiquanmen-Jiugequan, Dachadaban and Bianmagou). The Yingou Formation is distributed over the Sunan area, and consists of medium-basic volcanic rocks, volcanic clastic rocks interspersed with cherts, marbles, metamorphic mudstone (slate or schist) and sandstone. The geochemistry of the cherts shows that the cherts, coexisting with ophiolite from Bianmagou, Dachadaban, Jiugequan and Baiquanmen, all formed the background of the continental margin basin. The rare earth elements show that these cherts formed in the deep-water basin far from the continent, where terrestrial material had no obvious effect on them. It is inferred that North Qilian orogenic belt was located in the tectonic background of an archipelagic ocean where a wide multi-island ocean existed in the Ordovician.
- North Qilian orogenic belt,
- cherts,
- geochemistry,
- tectonic.

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References(44)

References

Adachi, M., Yamamoto, K., Sugisaki, R, 1986. Hydrother-mal chert and associated siliceous rocks from the Northern Pacific, their geological significance as indication of ocean ridge activity. Sedimentary Geology, 47: 125-148. doi: 10.1016/0037-0738(86)90075-8

Bostrom, K., Kraaemer, T., Gartner, S., 1973. Provenance and accumulation rates of opaline silica, Al, Ti, Fe, Mn, Cu, Ni and Co in Pacific pelagic sediments. Chem. Geol., 11: 132-148.

Bostrom, K., Peterson, M N. A., 1969. The origin of Al-poor ferromaganoan sediments in areas of high heat flow on the East Pacific Rise. Mar. Geol., 7: 427-447. doi: 10.1016/0025-3227(69)90016-4

Ding, L., Zhang, D. L., 1995. Characteristics of rare earth elements and cerium anomalies in cherts from the paleo-Tethy in Changning-Menglian belt in western Yunnan, China. Science in China (Series B), 39: 35-45.

Du, Y. S., Wang, J., Han, X., et al., 2003. From flysch to molasse-The sedimentary and tectonic evolution of the Late Caledonian-Early Hercynian foreland basin in North Qilian mountains. Journal of China University of Geosciences, 13 (1): 1 - 7.

Du, Y. S., Zhang, Z., Zhou, D. H., et al., 2002. Silurian and Devonian palaeogeography of northern Qilian-Hexi corridor and its sedimentary response to synorogenesis of North Qilian orogenic belt. Journal of Palaeogeography, 4(4): 1-8 (in Chinese with English abstract).

Du, Y. S., Zhu, J., Han, X., et al., 2004. From back-arc basin to foreland basin-The sedimentary basin and tectonic evolution of the late Caledonian-early Hercynian stages in North Qilian Mountains. Geological Bulletin of China, 23(9-10): 911-917 (in Chinese with English abstract).

Elderfield, H., Goddard, R U., Sholkovitz, E. R, 1990. The rare earth elements in rivers, estuares and coastal sea and their significance to the composition of ocean water. Geochimica et Cosmochimica Acta, 54: 971-991. doi: 10.1016/0016-7037(90)90432-K

Feng, Y. M., He, S. P., 1996. Tectonics and Orogenesis of Qilian mountains. Geological Publishing House, Beijing, 1 - 135 (in Chinese).

Ge, X. H., Liu, J. L., 1999. Formation and tectonic background of the northern Qilian orogenic belt. Earth Science Frontiers, 6: 223 - 230 (in Chinese with English abstract).

Hein, J. R, Vallier, T. L., Allan, A., 1981. Chert petrology and geochemistry, Mid-Pacific Mountains Hess Rise, deep sea drilling project. Lnit. Rep. DSDP, 62: 711 -748.

Lai, S. C., Deng, J. F., Zhao, H. L., 1997. Petrologic restrictions on the Ordovician ocean basin scale and spreading rate in Qilian area. Journal of Mineral and Petrology, 17(1): 35-39 (in Chinese with English abstract).

McKerrow, W. S., Scotes, C. R, 1990. Palaeozoic paleogeog-raphy and biogeography. Geological Society Memoir, 1 -363.

Murray, R W., 1994. Chemical criteria to identify the depo-sitional environment of chert: General principles and applications. Sediment. Geol., 90: 213-232. doi: 10.1016/0037-0738(94)90039-6

Murray, R W., Buchholtz, T., Brink, M. R, 1990. Rare earth elements as indicators of different marine deposi-tional environments of chert and shale. Geology, 18: 268-271.

Murray, R W., Buchholtz, T., Brink, M R, 1991. Rare earth, major and trace element in chert from Franciscan complex and Monterey Group: Assessing REE source to fine-grained marine sediments. Geochim. Cosmochim. Acta, 55: 1875-1895. doi: 10.1016/0016-7037(91)90030-9

Murray, R W., Buchholtz, T., Brink, M. R, 1992a. Rare earth and trace element composition of Monterey and DSDP chert and associated host sediment: Assessing the influence of chemical fractionation during diagenesis. Geochim. Cosmochim. Acta, 56: 2657-2671. doi: 10.1016/0016-7037(92)90351-I

Murray, R W., Jone, D. L., Buchholtz, T., et al., 1992b. Di-agenetic formation of bedded chert: Evidence from chemistry of the chert-shale couplet. Geology, 20: 271-274.

Ormiston, A. E., Lane, H. R, 1976. A unique radiolarian fauna from the Sycamore limestone (Missippippian) and its biostratigraphic significance. Palaeontographica Abt. (A), 154(4-6): 158-180.

Song, S. G., 1997. The tectonic evolution of the subductive complex in North Qilian moutains. Advance in Earth Sciences, 12(4): 351-365 (in Chinese with English abstract).

Sugisaki, R., Yamamoto, K., Adachi, M., 1982. Triassic bedded cherts in central Japan are not pelagic. Nature, 268: 644-647.

Xia, L. Q., Xia, Z. C., Xu, X. Y., 1996. Origin of marine volcanic rocks in North Qilian mountains. Geological Publishing House, Beijing, 1-153 (in Chinese).

Xia, L. Q., Xia, Z. C., Xu, X. Y., 1998. The volcanism of the Palaeozoic oceanic ridge-oceanic island and back-arc basins in northern Qilian moutains. Acta Geologica Sinica, 72 (4): 301-312 (in Chinese with English abstract).

Xia, L. Q., Xia, Z. C., Xu, X Y., 2003. The orgin of the Or-dovician volcanic magma of back arc basin in northern Qilian moutains. Geology in China, 30(1): 48 - 60 (in Chinese with English abstract).

Xu, X. Y., Zhao, J. T., Li, X M., et al., 2003. Rare earth elements in siliceous rocks from North Qilian mountains for tectonic environment. Geological Science and Technology Information, 22 (3): 22-26 (in Chinese with English abstract).

Xu, Z. Q., Xu, H. F., Zhang, J. X., et al., 1994. The Zou-langnanshan Caledonian subductive complex in the northern Qilian mountains and its dynamics. Acta Geologica Sinica, 68(1): 1-15 (in Chinese with English abstract).

Yamamoto, K., 1987. Geochemical characteristics and depo-sitional environments of cherts and associated rocks in the Franciscan and Shimanto Terranes. Sedimentary Geology, 52: 65-108. doi: 10.1016/0037-0738(87)90017-0

Zhang, Q., Sun, X. M., Zhou, D. J., 1997. The characteristics of north Qilian ophiolites, forming settings and their tectonic significance. Advance in Earth Sciences, 12(4): 366-393 (in Chinese with English abstract).

Zhang, Q., Wang, Y., Qian, Q., 2000. The North Qilian ocean basin of the Early Paleozoic age - An aulacogen or a large oceanic basin: A discussion with Ge Xiao-hong. Scientia Geologica Sinica, 35 (1): 121 - 128 (in Chinese with English abstract).

Zuo, G. C., Liu, Y. K., Zhang, C., 2002. Tectono-strati-graphic characteristics of continent crustal remnants in central-western sector of the North Qilian orogen. Chinese Journal of Geology, 37(3): 302-312 (in Chinese with English abstract).

杜远生, 张哲, 周道华, 等, 2002. 北祁连-河西走廊志留纪和泥盆纪古地理及其同造山过程的沉积响应. 古地理学报, 4(4): 1-8. doi: 10.3969/j.issn.1671-1505.2002.04.001

杜远生, 朱杰, 韩欣, 等, 2004. 从弧后盆地到前陆盆地—北祁连造山带晚加里东—早海西期的沉积盆地与构造演化. 地质通报, (9-10): 911-917.

冯益民, 何世平, 1996. 祁连山大地构造与造山作用. 北京: 地质出版社, 1-135.

葛肖虹, 刘俊来, 1999. 北祁连造山带的形成与背景. 地学前缘, 6: 223-230. doi: 10.3321/j.issn:1005-2321.1999.04.004

赖绍聪, 邓晋福, 赵海铃, 1997. 北祁连奥陶纪洋脊扩张速率及古海洋规模的岩石学约束. 矿物岩石, 17(1): 35- 39. https://www.cnki.com.cn/Article/CJFDTOTAL-KWYS701.005.htm

宋述光, 1997. 北祁连俯冲杂岩带的构造演化. 地球科学进展, 12(4): 351-365. doi: 10.3321/j.issn:1001-8166.1997.04.006

夏林圻, 夏祖春, 徐学义, 1996. 北祁连山海相火山岩岩石成因. 北京: 地质出版社, 1-153.

夏林圻, 夏祖春, 徐学义, 1998. 北祁连山早古生代洋脊-洋岛和弧后盆地火山作用. 地质学报, 72(4): 301-312. doi: 10.3321/j.issn:0001-5717.1998.04.002

夏林圻, 夏祖春, 徐学义, 2003. 北祁连山奥陶纪弧后火山岩浆成因. 中国地质, 30(1): 48-60. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI200301005.htm

徐学义, 赵江天, 李向民, 等, 2003. 北祁连山早古生代硅质岩稀土元素特征及其构造意义. 地质科技情报, 22(3): 22 -26. doi: 10.3969/j.issn.1000-7849.2003.03.004

许志琴, 徐慧芬, 张建新, 等, 1994. 北祁连走廊南山加里东俯冲杂岩增生地体及其动力学. 地质学报, 68(1): 1-15. https://www.cnki.com.cn/Article/CJFDTOTAL-DZXE199401000.htm

张旗, 孙晓猛, 周德进, 1997. 北祁连蛇绿岩特征、形成环境及其构造意义. 地球科学进展, 12(4): 366-393. doi: 10.3321/j.issn:1001-8166.1997.04.007

张旗, 王焰, 钱青, 2000. 北祁连早古生代洋盆是裂陷槽还是大洋盆——与葛肖虹讨论. 地质科学, 35(1): 121- 128. doi: 10.3321/j.issn:0563-5020.2000.01.016

左国朝, 刘义科, 张崇, 2002. 北祁连造山带中-西段陆壳残块群的构造—地层特征. 地质科学, 37(3): 302-312. doi: 10.3321/j.issn:0563-5020.2002.03.006

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Sedimentary Geochemistry and Tectonic Significance of Ordovician Cherts in Sunan, North Qilian Mountains

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