| 从原岩建造角度探讨辽河群的形成环境 |
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| 引用本文： | 翟富荣,梁帅,郭洪方. 从原岩建造角度探讨辽河群的形成环境[J]. 地质找矿论丛, 2016, 31(4): 550-554. DOI: 10.6053/j.issn.1001-1412.2016.04.011 |
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| 作者姓名： | 翟富荣 梁帅 郭洪方 |
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| 作者单位： | 1. 辽宁省地质矿产研究院,沈阳,110032;2. 辽宁省地质矿产调查院,沈阳,110032;3. 辽宁省地质勘查院,辽宁大连,116100 |
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| 基金项目： | 《辽宁省区域地质志》修编项目“辽宁省地质系列图件编制与综合研究”(基[2008]01-20-01) |
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| 摘 要： | 文章通过对辽河群上百条实测剖面中岩石类型进行了加权平均统计,得出了辽河群中各种岩石类型的百分含量;对辽河群中已有的上千组岩石化学数据进行了筛选,选取具有代表性的94组数据,用以对辽河群原岩建造恢复和形成构造环境的讨论。认为辽河群的原岩建造为巨厚的陆源沉积碎屑岩—内源沉积碳酸盐岩(夹少量火山岩)建造,具有典型的大陆架沉积特征;这在威尔逊旋回中属于成年期洋盆(大西洋)阶段所独具的沉积特征,这个洋盆暂且称之为辽吉古元古洋。
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| 关 键 词： | 辽河群 古环境 沉积建造 陆源碎屑岩 内源碳酸盐岩 大陆架型沉积 辽宁省 |
| 收稿时间： | 2015-09-07 |
| 修稿时间： | 2016-03-28 |
The original formation-based discussion on Liaohe Group's environment |
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| ZHAI Furong,LIANG Shuai and GUO Hongfang. The original formation-based discussion on Liaohe Group's environment[J]. Contributions to Geology and Mineral Resources Research, 2016, 31(4): 550-554. DOI: 10.6053/j.issn.1001-1412.2016.04.011 |
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| Authors: | ZHAI Furong LIANG Shuai GUO Hongfang |
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| Affiliation: | Geological Research Institute of Liaoning Province, Shenyang 110000, China;Geological Survey Institute of Liaoning Province, Shenyang 110000, China;Geological Exploration Institute of Liaoning Province, Dalian 116000, Liaoning, China |
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| Abstract: | In this paper, the author make a weighted average statistics of the rock types in about one hundred sections through Liaohe Group obtaining the percentage of each rock type. 94 representatives are screened out from about one thousand petro-geochemical data sets to reconstruct the original formation and discuss the tectonic environment of sedimentation. The data show that original Liaohe Group is a thick terrigenous clastic sedimentary rock-intrabasin sedimentary carbonate rock (interclated with a little volcanic rock) sequence characterized by typical continental shelf sedimentation and adult ocean basin (the Atlantic) sedimentary stage of Wilson cycle. The ocean basin of Liaohe group is called here Liaoji Paleoproterozoic Ocean. |
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| Keywords: | Liaoning Group palae-environment sedimentary formation terrigenous elastic rocks intra-basin precipitated carbonate rocks continental shelf sedimentation Liaoning province |
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