| 内蒙古白云鄂博群中微生物岩的发现及其地质意义 |
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| 引用本文： | 梁玉左, 王楫. 1994. 内蒙古白云鄂博群中微生物岩的发现及其地质意义. 地质通报, (3). |
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| 作者姓名： | 梁玉左 王楫 |
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| 作者单位： | 1. 内蒙古第一区域地质研究院;; 2. 内蒙古地质科学研究所 |
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| 摘 要： | 白云鄂博群的微生物岩Ｍｉｃｒｏｂｉｏｌｉｔｅ主要位于其中部Ｈ＿６－Ｈ＿８岩段（哈拉霍疙特组）。在Ｈ＿６岩段中下部可见到典型的凝块石层位，其形态与柱状叠层石的形象差不多，产在钙质砂岩或砂质灰岩中。Ｈ＿７岩段主要为不发育的微小型叠层石层位。Ｈ＿８岩段上部约５０～６０ｍ部分是最主要的微生物岩层位。主要产出微小型叠层石和凝块石等；而核形石的形体较大，多呈放射状。微生物泥丘为黑色的丘状体，大小不一，产于碳酸盐层位中。微生物岩与石油天然气的形成有密切的联系。
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THE DISCOVERY OF MICROBIOLITE IN THE BAYAN OBO GROUP OF INNER MONGOLIA AND ITS GEOLOGICAL SIGNIFICANCE |
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| 1994. THE DISCOVERY OF MICROBIOLITE IN THE BAYAN OBO GROUP OF INNER MONGOLIA AND ITS GEOLOGICAL SIGNIFICANCE. Geological Bulletin of China, (3). |
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| Abstract: | Microbiolite of the Bayan Obo Group mainly occurs in Menbers H6-H8（Halahuogete Forma-tion）in the middle part of the group.In the middle and lower parts of Member H6 ,we can see thetypical thrombolite horizon. Its form is almost the same as that of columnar stromatolite occurringin calcareous sandstone or sandy limestone. Member H7 is chiefly a less developed ministroma-tolite horizon. The top 50-60 m interval in the upper part of Member H8 is the main microbiolitehorizon ,yielding microstromatolite and thrombolite. The size of oncolite , however ,is bigger andmostly radiate in shape. Microorganism mud mounds are black mounds and variable in size occur-ring in the carbonate gorezon. Microbiolite is intimately associated with the formation ofpetroleum. |
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