| 辽北地区新元古代原殷屯组岩石地层单位的重新划分及其地质意义 |
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| 引用本文： | 卢崇海,田德欣,李彪,邵九龙,刘振伟,赵娇,卢思桥.辽北地区新元古代原殷屯组岩石地层单位的重新划分及其地质意义[J].世界地质,2018,37(4):1085-1091. |
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| 作者姓名： | 卢崇海 田德欣 李彪 邵九龙 刘振伟 赵娇 卢思桥 |
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| 作者单位： | 1. 辽宁省矿产勘查院, 沈阳 110031;2. 辽宁省地质矿产研究院, 沈阳 110032 |
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| 基金项目： | 辽宁新元古代南华纪地层划分与对比研究（辽地科[2016]04号）. |
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| 摘 要： | 本次研究把20世纪八十年代初期完成的辽宁1∶5万大甸子、下肥地和上年马洲幅区调报告中所建立的震旦系殷屯组3个岩性段,即底部砾岩段、中部砂岩段和上部板岩、页岩段,分别厘定为新元古界北方系(南华系)殷屯组、陈千户组和汎河组。并确认出殷屯组为辽宁北方系(南华系)第一次陆相冰碛作用的产物;陈千户组为陆相间冰期沉积的产物;汎河组为辽宁第二次陆相冰湖相堆积的产物。上述组级岩石地层单位的厘定,首次在辽宁北部地区划分出2次冰水堆积物。
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| 关 键 词： | 辽北地区 殷屯组 陈千户组 汎河组 二次冰期 间冰期 |
| 收稿时间： | 2018-06-28 |
| 修稿时间： | 2018-08-30 |
Re-division of lithostratigraphic units of previous Neoproterozoic Yintun Formation and its geological significance in northern Liaoning |
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| LU Chong-hai,TIAN De-xin,LI Biao,SHAO Jiu-long,LIU Zhen-wei,ZHAO Jiao,LU Si-qiao.Re-division of lithostratigraphic units of previous Neoproterozoic Yintun Formation and its geological significance in northern Liaoning[J].World Geology,2018,37(4):1085-1091. |
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| Authors: | LU Chong-hai TIAN De-xin LI Biao SHAO Jiu-long LIU Zhen-wei ZHAO Jiao LU Si-qiao |
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| Institution: | 1. Liaoning Institute of Mineral Exploration, Shenyang 110031, China;2. Liaoning Institute of Geology and Mineral Resources, Shenyang 110032, China |
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| Abstract: | Sinian Yintun Formation was originally established during the 1:50 000 regional geological survey in Dadianzi, Xiafeidi and Shangnianmazhou area in the early eighties of 20 century. In this study, the authors redefined the previous three lithologic units of Yintun Formation as Yintun, Chenqianhu and Fanhe formations of Neoproterozoic Beifang System(Nahua System). Meanwhile, it is confirmed that Yintun Formation was the product of the first continental moraine in Beifang System(Nahua System) in Liaoning, Chenqianhu Formation was the product of continental interglacial deposition, and Fanhe Formation was the product of the second continental glacial lacustrine deposit in Liaoning. It is the first time to determine two ice-water deposits in northern Liaoning. |
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| Keywords: | northern Liaoning Yintun Formation Chenqianhu Formation Fanhe Formation twice ice age interglacial period |
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