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福建政和地区"稻香组"问题的探讨
引用本文:揭育金.福建政和地区"稻香组"问题的探讨[J].福建地质,2004,23(3):124-130.
作者姓名:揭育金
作者单位:中国地质大学,武汉,430074
摘    要:在野外实际调研成果并结合前人资料的基础上,从岩石组合、岩石地球化学特征及构造组合特征等方面分析,认为原“稻香组”建组剖面(政和稻香-高堀剖面),可划分为三套分属不同时代的岩性组合,且将稻香组的定义重新修订。其下部为细砂岩、粉砂岩、硅质岩、泥岩组合,时代暂置晚古生代。三套岩石组合间为构造拼接关系,其性质为逆冲推覆.运动方向由南东向北西,推测逆冲推覆事件发生在晚侏罗世。

关 键 词:稻香组  逆冲推覆  岩石组合  政和地区
修稿时间:2004年7月3日

On Discussion of Daoxiang Formation in Zhenghe, Fujain Province
Jie,Yujin.On Discussion of Daoxiang Formation in Zhenghe, Fujain Province[J].Geology of Fujian,2004,23(3):124-130.
Authors:Jie  Yujin
Abstract:Based on the field investigation and the data summed up by our predecessors, t he author studied the characteristics of litho-geochemistry and rock associat io n and tectonic fabric And it is considered that the former profile ( Daoxiang -Gaojue Profile in Zhenghe County) of establishing Daoxiang Formation can be di vi ded into three suites of lithologic association which belong to the different ge ological ages The definition of Daoxiang Formation is re-revised so that the l ower segment of the rock association is regarded as the combination of fine sand stone, siltstone, silicalite and mudstone At present, the geologic age is d e terminated late paleozoic era There is a tectonic splicing relation among th ree suites of rock assemblages They belong to a thrust nappe structure with S E -NW direction of motion It is inferred that the event of thrust overriding ta kes place in Late Jurassic
Keywords:Daoxiang Formation    thrust nappe    rock assemblage    Zhenghe area
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