| 鲁、苏、皖震旦系寒武系含金刚石砾岩特征 |
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| 引用本文： | 朱连兴.鲁、苏、皖震旦系寒武系含金刚石砾岩特征[J].吉林大学学报(地球科学版),1992(2). |
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| 作者姓名： | 朱连兴 |
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| 作者单位： | 长春地质学院地质系 |
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| 摘 要： | 中国东部发现的震旦系、寒武系含金刚石砾岩,分别划属震旦系黑山宫组,寒武系五山组和金山寨组.它们都形成于不整合侵蚀面的洼陷处.含金刚石砾岩呈层状,透镜状.金刚石来源于太古界、元古界分布区的金伯利岩。砾岩形成与基底准平原化有关,在浪蚀、海流作用下形成于滨海地带。
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| 关 键 词： | 含金刚石砾岩 震旦系 准平原化 |
CHARACTERISTICS OF SINIAN AND CAMBRIAN DIAMONDIFEROUS IN JIANGSU, SHANDONG, ANHUEI PROVINCE |
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| Zhu Lianxing.CHARACTERISTICS OF SINIAN AND CAMBRIAN DIAMONDIFEROUS IN JIANGSU, SHANDONG, ANHUEI PROVINCE[J].Journal of Jilin Unviersity:Earth Science Edition,1992(2). |
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| Authors: | Zhu Lianxing |
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| Institution: | Department of Geologyg |
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| Abstract: | The first diamendiferous conglomerates of bottom was found at Sinian (Z) and early Cambrian e-poch, east China. Conglomerates belong to Shandong Tumen formation underlain by Taishan formation. Conglomerates of Wushan , Jinshanzhai belong to early Cambrian series underlain by Tumen formation.The diamondiferous conglomerates lie on erosion surfaces and invariably occupy depressions of unconformities. Their bottoms are less regular than their tops . But it may be bedded, as in Tumen formation which attained thicknesses of a few-80m. They are formed along seathores by the concentrating effects of wave and shore action. Diamonds and gravels probably come orginally from weathered kimberlites. |
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| Keywords: | diamondiferous Sinian epoch concentrating effects |
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