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e dong nan xia er die tong mao kou zu fang she chong gui zhi yan de cheng yin chu tan
Author(s): 
Pages: 67-74+159
Year: Issue:  2
Journal: Acta Sedimentologica Sinica

Keyword:  放射虫硅质岩鄂东南茅口组下二叠统成因初探菊石带状硅生物成因层位古陆;
Abstract: <正> 近年来,关于华南下二叠统茅口组硅质岩成因的讨论,引起广泛的兴趣。这套硅质岩湖南称为当冲组,江西称为鸣山层,桂中称为孤峰组,在湖北被命名为珞珈组、胭脂街组或鸣山层等。这些硅质岩中,产有丰富的具有特色的阿尔图菊石、孤蜂菊石及付色尔特菊石等。在层位上多出现在龙潭组——一套含煤的碎屑岩系与栖霞组或茅口组下部之间。所以,盛金章教授(1962)曾根据生物组合和层位关系把它们置于同一层位而归属于茅口灰岩的同期异相沉积。
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