| 中元古界蒙山组、陈塘坞组的建立 |
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| 引用本文： | 颜铁增,龚日祥,汪庆华,余心起,华锡宏.中元古界蒙山组、陈塘坞组的建立[J].地层学杂志,2009,33(3). |
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| 作者姓名： | 颜铁增 龚日祥 汪庆华 余心起 华锡宏 |
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| 作者单位： | 1. 浙江省地质调查院,浙江杭州,311203
2. 中国地质大学地球科学与资源学院,北京,100083 |
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| 基金项目： | 中国地质调查局1/25万《金华市幅》区域地质调查项目 |
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| 摘 要： | 依据浙江省浦江县蒙山剖面建立蒙山组和陈塘坞组等二个地层单位层型,将二组归并为平水群。同时,恢复了平水群的地层名称和修订了它的含义,下部蒙山组细碧—角斑岩建造(未见底)和上部陈塘坞组海相砂泥岩建造,与上覆地层双溪坞群为整合关系,它代表浙江省西北部最老的基底。通过对层型剖面微古植物化石和同位素年龄的研究对比,提出平水群地质时代归属中元古代。对层型剖面层序地层、岩石化学、稀土、微量元素的分析研究,认为平水群的细碧—角斑岩形成于岛弧环境。
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| 关 键 词： | 岩石地层 地层划分 蒙山组 陈塘坞组 平水群 中元古代 浦江县 浙江省 |
ESTABLISHMENT OF THE MESOPROTEROZOIC MENGSHAN AND CHENTANGWU FORMATIONS |
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| YAN Tie-zeng,GONG Ri-xiang,WANG Qing-hua,YU Xin-qi,HUA Xi-hong.ESTABLISHMENT OF THE MESOPROTEROZOIC MENGSHAN AND CHENTANGWU FORMATIONS[J].Journal of Stratigraphy,2009,33(3). |
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| Authors: | YAN Tie-zeng GONG Ri-xiang WANG Qing-hua YU Xin-qi HUA Xi-hong |
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| Institution: | YAN Tie-zeng 1),GONG Ri-xiang 1),WANG Qing-hua 1),YU Xin-qi 2), HUA Xi-hong 1)1)Zhejiang Institute of Geological Survey,Hanzhou 311203,2)School of Earth Sciences , Resources,China University of Geosciences,Beijing 100083 |
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| Abstract: | On the basis of the Mesoproterozoic Mengshan section in the Pujiang area of Zhejiang Province,the authors have estabilished two lithostratigraplic units and their stratotypes:Mengshan Formation and Chentangwu Formation.These two formations belong to the Pingshui Group.The lithostratigraphic unit of the Pingshui Group is reviwed and revised.The lower part of the Pingshui Group is represented by the Mengshan Formation(spilite-keratophyre)and the upper part by the Chentangwu Formation(marina facies sand-mudsto... |
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| Keywords: | lithostratigraphy stratigraphic division Mengshan Formation Chentangwu Formation Pingshui Group Mesoproterozoic Pujiang Zhejiang Province |
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