| 大别山南部宿松群的组成及形成时代 |
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| 引用本文： | 高道明,吴维平.大别山南部宿松群的组成及形成时代[J].安徽地质,2008,18(2):85-91. |
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| 作者姓名： | 高道明 吴维平 |
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| 作者单位： | 华东冶金地勘局马鞍山地勘总院,安徽,马鞍山,243000;安徽省地质调查院,安徽,合肥,230001 |
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| 基金项目： | 国家自然科学基金，安徽省地质勘查专项费项目 |
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| 摘 要： | 在前人工作基础上，根据对大别山南部的区域地质调查和同位素年代学测定，对宿松群的组成和形成时代进行了研究。进一步论证了宿松群可解体为以变质侵入岩为主的蒲河杂岩和变质沉积岩为主的宿松岩群两部分。前者主要分别在原宿松群虎踏石组和蒲河组的范围内，组成岩石变花岗片麻岩和斜长角闪岩为主，其原岩主要为形成于新元古代的花岗岩类和基性侵入岩；后者主要分布在原宿松群大新屋组和柳萍组范围内，组成岩石主要为变质碎屑岩和化学沉积岩，可分为大新屋岩组和柳坪岩组，是不整合在古元古代二长花岗片麻岩之上，时代为中元古代早期。
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| 关 键 词： | 中元古代 变花岗片麻岩和斜长角闪岩 宿松群 大别山南部 |
| 文章编号： | 1005-6157(2008)02-85-08 |
| 修稿时间： | 2007年12月12 |
COMPOSITION AND FORMATION TIME OF THE SUSONG GROUP IN SOUTHERN DABIE MT |
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| GAO Dao-ming,WU Wei-ping.COMPOSITION AND FORMATION TIME OF THE SUSONG GROUP IN SOUTHERN DABIE MT[J].Geology of Anhui,2008,18(2):85-91. |
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| Authors: | GAO Dao-ming WU Wei-ping |
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| Institution: | GAO Dao-ming1,WU Wei-ping2(1.Maanshan Institute of Geological Prospecting,East China Metallurgical Geology Bureau,Maanshan,Anhui,China,2.Anhui Geological Survey,Hefei 230001,China) |
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| Abstract: | Based on the predecessors＇ work, this paper made a study of the composition and formation time of the Susong Group by regional geological survey in the southern Dabie Nit and isotopic dating, further verified that the Susong Group can be decomposed into the Puhe complex dominated by meta-intrusive rocks and the Susong rock group cored by meta-sedimentary rocks. The former is chiefly limited to the previous Hutashi Formation and Puhe Formation of the Susong Group, mainly composed of meta-grano-gneiss and plagioclase amphibolite, evolved from the neo-Proterozoic granotoids and basic intrusive rocks, and the latter mostly occurs in the previous Daxinwu Formation and Liuping Formation of the Susong Group, constituted by meta-clastics and chemically sedimentary rocks, which can be classified into the Daxinwu rock formation and Liuping rock formation, overlying the paleo-Proterozoic adamellite in unconformity in the early mid-Proterozoic. |
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| Keywords: | mid-Proterozoic meta-grano-gneiss and plagioclaseamphibolite Susong Group southern Dabie Mt |
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