颜铁增,龚日祥,汪庆华,余心起,华锡宏

• 1:浙江省地质调查院
• 2:中国地质大学地球科学与资源学院

摘要(Abstract)：

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。

关键词(KeyWords)： 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

Abstract:

Keywords:

基金项目(Foundation): 中国地质调查局1/25万《金华市幅》区域地质调查项目(200113000032)成果

作者(Author): 颜铁增,龚日祥,汪庆华,余心起,华锡宏

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