北辽河群浪子山组地层的重新厘定
Redefinition of the Langzishan Formation in the North Liaohe Group

作者: 李 壮 , 王家林 , 王 盟 , 张 璐 , 刘经纬 , 钱加慧 , 余黄露 :北京大学地球与空间科学学院,北京;

关键词: 辽宁省北辽河群浪子山组重新厘定Liaoning Province North Liaohe Group Langzishan Formation Redefinition

摘要:
古元古代北辽河群浪子山组变质沉积岩系主要分布在辽宁省鞍山市、海城市、辽阳市一带,其岩石组合以石英岩、片岩、千枚岩、变粒岩夹大理岩、透闪岩等为主,原岩恢复为砂岩、泥质砂岩、泥岩、泥灰岩等。前人将其置于北辽河群底部。通过对南北辽河群各组进行了详细的地质调查和分析对比工作,依据岩石组合特征和锆石年代学数据,笔者认为浪子山组应与南辽河群盖县组层位相当,故浪子山组不宜置于辽河群底部而应重新厘定为北辽河群顶部。

Abstract: The Paleoproterzoic clastic rocks are widely distributed in the southern portion of Liaoning prov-ince, grouped as the Langzishan Formation of the North Liaohe Group. The Langzishan Formation, previously defined as the bottom of the North Liaohe Group, mainly consists of sandstone, shaly sandstone, clay rock, siltstone interbedded with limestone, and argillaceous limestone. They were metamorphosed to be quartzite, schist, phyllite, marble, and tremolite rocks. Based on detailed field investigation, integrating with zircon U-Pb data, we proposed that the Langzishan Formation is equivalent to the Gaixian Formation (top of the South Liaohe Group). The Langzishan Formation should be grouped into the upper clastic sequence of the North Liaohe Group, but not the bottom as previous consideration.

文章引用: 李 壮 , 王家林 , 王 盟 , 张 璐 , 刘经纬 , 钱加慧 , 余黄露 (2014) 北辽河群浪子山组地层的重新厘定。 地球科学前沿, 4, 397-403. doi: 10.12677/AG.2014.46047

参考文献

[1] Zhao, G.C. and Zhai, M.G. (2013) Lithotectonic elements of Precambrian basement in the North China Craton: Review and tectonic implications. Gondwana Research, 23, 1207-1240.

[2] Liu, D.Y., Nutman, A.P., Compston, W., Wu, J.S. and Shen, Q.H. (1992) Remnants of >3800 Ma crust in the Chinese part of the Sino-Korean Craton. Geology, 20, 339-342.

[3] Song, B., Nutman A.P., Liu, D.Y. and Wu, J.S. (1996) 3800 to 2500Ma crustal evolution in the Anshan area of Liaoning province, northeastern China. Precambrian Research, 78, 79-94.

[4] 路孝平, 吴福元, 林景仟, 孙德有, 张艳斌, 郭春丽 (2004) 辽东半岛南部早前寒武纪花岗质岩浆作用的年代学格架. 地质科学, 39, 123-138.

[5] Li, S.Z. and Zhao, G.C. (2007) SHRIMP U-Pb zircon geochronology of the Liaoji granitoids: Constraints on the evolution of the Paleoproterozoic Jiao-Liao-Ji belt in the Eastern Block of the North China Craton. Precambrian Research, 158, 1-16.

[6] Li, S.Z., Zhao, G.C., Santosh, M., Liu, X. and Dai, L.M. (2011) Palaeoproterozoic tectono-thermal evolution and deep crustal processes in the Jiao-Liao-Ji belt, north China craton: A review. Geological Journal, 46, 525-543.

[7] 辽宁省地质矿产局 (1988) 辽宁省区域地质志. 地质出版社, 北京.

[8] Li, S.Z., Zhao, G.C., Sun, M., Han, Z.Z., Luo, Y., Hao, D.F. and Xia, X.P. (2005) Deformation history of the Paleoproterozoic Liaohe assemblages in the Eastern Block of the North China Craton. Journal of Asian Earth Sciences, 24, 659-674.

[9] 张秋生, 杨振升, 刘连登 (1988) 辽东半岛早期地壳演化与矿产. 地质出版社, 北京.

[10] 贺高品, 叶惠文 (1998) 辽东-吉南地区早元古代两种类型变质作用及其构造意义. 岩石学报, 14, 152-162.

[11] Wan, Y.S., Song, B., Liu, D.Y., Wilde, S.A., Wu, J.S., Shi, Y.R., Yin, X.Y. and Zhou, H.Y. (2006) SHRIMP U-Pb zircon geochronology of Pa-leoproterozoic metasedimentary rocks in the North China Craton: Evidence for a major Late Paleoproterozoic tectono-thermal event. Precambrian Research, 149, 249-271.

[12] Luo, Y., Sun, M., Zhao, G.C., Li, S.Z., Xu, P., Ye, K. and Xia, X.P. (2004) LA-ICP-MS U-Pb zircon ages of the Liao- he Group in the Eastern Block of the North China Craton: Constraints on the evolution of the Jiao-Liao-Ji Belt. Precambrian Research, 134, 349-371.

[13] Luo, Y., Sun, M., Zhao, G.C., Li, S.Z., Ayers, J.C., Xia, X.P. and Zhang, J. (2008) A comparison of U-Pb and Hf isotopic compositions of detrital zircons from the North and South Liaohe Groups: Constraints on the evolution of the Jiao-Liao-Ji Belt, North China Craton. Precambrian Research, 163, 279-306.

[14] Sun, M., Armstrong, R.L., Lambert, R.S., Jiang, C.C. and Wu, J.H. (1993) Petrochemistry and Sr, Pb and Nd istopic geochemistry of Palaeoproterozoic Kuandian Complex in the eastern Liaoning province, China. Precambrian Research, 62,171-190.

[15] Li, Z. and Chen, B. (2014) Geochronology and geochemistry of the Paleoproterozoic meta-basalts from the Jiao-Liao- Ji Belt, North China Craton: Implications for petrogenesis and tectonic setting. Precambrian Research, 255, 653-676.

[16] 李壮, 陈斌, 刘经纬, 张璐, 杨川 (2015) 辽东半岛南辽河群锆石U-Pb年代学及其地质意义. 岩石学报, In Press.

[17] 孟恩, 刘福来, 刘平华, 刘超辉, 施建荣, 孔庆波, 廉涛 (2013) 辽东半岛东北部宽甸地区南辽河群沉积时限的确定及其构造意义. 岩石学报, 7, 2465-2480.

[18] Xie, L.W., Yang, J.H., Wu, F.Y., Yang, Y.H. and Wilde, S.A. (2011) PbSL dating of garnet and staurolite: Constraints on the Paleoproterozoic crustal evolution of the Eastern Block, North China Craton. Journal of Asian Earth Sciences, 42, 142-154.

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