| 试论嵩山地区亮甲山组白云岩和燧石的成因 |
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| 引用本文： | 田海芹. 试论嵩山地区亮甲山组白云岩和燧石的成因[J]. 中国石油大学学报(自然科学版), 1989, 0(3) |
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| 作者姓名： | 田海芹 |
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| 作者单位： | 石油大学勘探系 |
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| 摘 要： | 本文应用野外和室内相结合的研究方法,对篙山地区亮甲山组白云岩和燧石的成因进行了探索。白云岩中燧石的产状有纹层状、树丛状、斑状、结核状及团块状等。室内岩石薄片、扫描电子显微镜及阴极发光显微镜等研究表明,该组原始沉积的CaCO_3沉积物及早期形成的石灰岩曾先后遭受了初次云化、初次硅化、二次云化及二次硅化作用的改造才形成了目前的含有燧石的白云岩。本文提出了白云岩及其燧石成因的解释机理。
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| 关 键 词： | 白云岩 燧石 成因 机理 嵩山地区 |
ON THE ORIGIN OF DOLOSTONES AND CHERTS IN LIANGJIASHAN FORMATION OF SONGSHAN MOUNTAIN REGION |
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| Tian Haiqin. ON THE ORIGIN OF DOLOSTONES AND CHERTS IN LIANGJIASHAN FORMATION OF SONGSHAN MOUNTAIN REGION[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 1989, 0(3) |
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| Authors: | Tian Haiqin |
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| Affiliation: | Dept of Petroleum Exploration |
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| Abstract: | In this paper the origin of dolostones and cherts of Liangjia-shan Formation is studied by combining field and laboratory work. The occurrences of cherts in the dolostones are various, such as Lamina, groves, specks, nodules, lumps etc. The thin section, scanning electron microscope, ca thodeluminescence microscope studied in ladoratory show that the primary CaCO3 deposits and the limestones formed earlier could have been reformed by primary-dolomitization, primary-silicification, secondary-dolomitization and secondary-silicification in turn, resulting in the present cherts-bearing dolos tones. An original mechanism about the origin of dolomites and cherts is presented in this paper. |
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| Keywords: | Dolomite Cherts Cause of formation Mechanism Songshan area |
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