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黔东湘西寒武纪碳酸盐斜坡上的风暴沉积
引用本文:金振奎,蒋盘良,冯增昭.黔东湘西寒武纪碳酸盐斜坡上的风暴沉积[J].中国石油大学学报(自然科学版),1995(3).
作者姓名:金振奎  蒋盘良  冯增昭
作者单位:石油大学地科系
摘    要:黔东万山-湖南新晃地区的寒武系中风暴沉积发育。风暴沉积的岩石类型主要是砾屑石灰岩和砂屑石灰岩,砾屑石灰岩从细砾屑石灰岩到巨砾屑石灰岩均有,但以中砾屑石灰岩最多,砾屑大都呈板状,但有的呈近等轴状。其排列方式呈平行状和迭瓦状。砂屑石灰岩具递变层理、平行层理、丘状层理、单向交错层理等。砾屑石灰岩和砂屑石灰岩夹于大套暗色中薄层碳酸盐岩中,为斜坡环境中的风暴沉积。

关 键 词:寒武纪  斜坡  风暴沉积  贵州东部地区  湘西地区

CAMBRIAN STORM DEPOSITS ON CARBONATE SLOPE AT EAST GUIZHOU AND WFST HUNAN PROVINCES
Jin Zhenkui,Jiang Pailiiang,Feng Zengzhao.CAMBRIAN STORM DEPOSITS ON CARBONATE SLOPE AT EAST GUIZHOU AND WFST HUNAN PROVINCES[J].Journal of China University of Petroleum,1995(3).
Authors:Jin Zhenkui  Jiang Pailiiang  Feng Zengzhao
Abstract:Storm deposits are well developed at Wanshan in the East Guizhou Province andXinhuang in the West Hunan Province,Those deposits are mainly gravelclast limestones andsandclast limestones.The gravelclast limestones include all gravelclast limestones from fine tovery coalse gravelclast llmestones. Most gravelclasts are platy in shape, but some are nearlyequidimensional.They are parallel to bedding planes or imbricated. Sandclast limestonesshow grading stratitication,parallel stratification, hummocky stratification, unidirectionalcross stratification etc.Gravelclast limestones and sandclast limestones are intercalated withthick intervals of darkcoloured medium-thin bed carbonate rocks,and were deposited in slopeenvironments.
Keywords:Cambrian period:Slope  Tempestite  East part of Guizhou  West part of Hunan
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