| 大兴安岭绰源地区奥陶系多宝山组-苏呼河组解体及时代探讨 |
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| 引用本文： | 杨仲杰,张文静,刘学文,张元厚,王晓晗,刘长纯,姜春宇. 大兴安岭绰源地区奥陶系多宝山组-苏呼河组解体及时代探讨[J]. 地质找矿论丛, 2018, 33(3): 409-416 |
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| 作者姓名： | 杨仲杰 张文静 刘学文 张元厚 王晓晗 刘长纯 姜春宇 |
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| 作者单位： | 辽宁省地质矿产调查院;辽宁省地震局;吉林大学地球科学学院 |
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| 基金项目： | 中国地质调查局矿产资源调查项目"内蒙古东部博克图地区矿产远景调查（编号：1212010881205）"资助 |
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| 摘 要： | 大兴安岭绰源地区出露有呈零星分布的老变质岩系,前人对其归属存在一定的争议。文章通过对该套岩石进行的地层学、岩石学、岩石地球化学特征研究和锆石U-Pb测年,探讨了该套变质岩系的原岩性质、形成环境和区域变质作用。结果表明,原岩主要为一套中酸性凝灰岩、砂岩、粉砂岩、泥岩及其过渡类型的碎屑岩;推测其沉积环境为活动大陆边缘的浅海相或浅海-滨海相;该套地层定年为中下志留统。
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| 关 键 词： | 奥陶系 多宝山组-苏呼河组解体 地层年代 志留系 大兴安岭绰源地区 内蒙古 |
| 收稿时间： | 2017-04-17 |
| 修稿时间： | 2017-07-06 |
Disintegration and discussion on the time of Ordovician Duobaoshan Formation and Suhuhe Formation in Chaoyuan district of Daxing'anling Mountain |
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| YANG Zhongjie,ZHANG Wenjing,LIU Xuewen,ZHANG Yuanhou,WANG Xiaohan,LIU Changchun and JIANG Chunyu. Disintegration and discussion on the time of Ordovician Duobaoshan Formation and Suhuhe Formation in Chaoyuan district of Daxing'anling Mountain[J]. Contributions to Geology and Mineral Resources Research, 2018, 33(3): 409-416 |
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| Authors: | YANG Zhongjie ZHANG Wenjing LIU Xuewen ZHANG Yuanhou WANG Xiaohan LIU Changchun JIANG Chunyu |
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| Affiliation: | Geological and Mineral Survey Institute of Liaoning Porvice, Shenyang 110031, China,Liaoning Seismological Bureau, Shenyang 110031, China,Geological and Mineral Survey Institute of Liaoning Porvice, Shenyang 110031, China,College of Earth Sciences, Jilin University, Changchun 130061, China,Geological and Mineral Survey Institute of Liaoning Porvice, Shenyang 110031, China,Geological and Mineral Survey Institute of Liaoning Porvice, Shenyang 110031, China and Geological and Mineral Survey Institute of Liaoning Porvice, Shenyang 110031, China |
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| Abstract: | The metamorphic rock sequence is exposed sporadically in the Chaoyuan area of Daxinganling Mountains and the formation time controversial. Based on stratigraphy, petrology, rock geochemistry and U-Pb dating age is discussed the original rock property, formation environment and regional metamorphism. The result shows that the original rock is mainly a set of intermediate-acidic tuff, sandstone, siltstone, mudstone and their transitional types of clastic rock deposited under an active continent marginal shallow or shallow-neritic environment. Geological time of the sequence belongs to Middle-Early Silurian Period. |
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| Keywords: | Ordovician Duobaoshan Formation-Suhuhe formation disintegration chronological age Silurian Period Chaoyuan district in Daxing''anling Mountain Inner Mongolia |
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