地质与勘探2012，Vol.48Issue(1)：49-57,9.
河南石炭系本溪组古生物学划分对比方法研究
Stratigraphic Subdivision and Correlation of the Carboniferous Benxi Formation in Henan Province Using Paleontology
王令全 1王军强 1马晓辉 1徐长钊 1张坤 1崔蓓蕾 1付治国1
作者信息
- 1. 河南省地质矿产勘查开发局第二地质勘查院,河南许昌461000
- 折叠
摘要
Abstract
Henan Province is the second largest aluminum-producing province in China, where the bauxite occurs in the Carboniferous Benxi Formation. However, stratigraphic division of the Benxi Formation remains controversial for a long time. This paper presents a comprehensive analysis about lithological association, zoolite and plant fossil assemblage and sporo-pollen assemblage.. The conclusions are as follows. （ 1 ） The Benxi Formation in He- bi of North Henan Province is a lithostratigraphic unit that spans across the Huashiban stage and Dalat stage. （2） The upper limit of the Benxi Formation in Jiaozuo City is near the upper limit of the Dala stage. （ 3 ） The Benxi Formation in West Henan Province is a lithstratigraphic unit cutting across the Hua- shiban stage, Dalat stage and Maping stage. （4） The biological group in the Benxi Formation of the North Songqi area is the product of the late Carboniferous epoch. （5） The biological group in the Benxi Formation of the central Songqi area is later than that in the north Songqi area. To sum up, the aluminiferous Benxi Formation in Henan Province is an obviously diachronous and typical litbostratigraphic unit. According to the current subdivision method of Carboniferous epoch, it formed both in the early and middle stage of the late Carboniferous. It is a litbostratigraphie assembly with homophase but different periods.关键词
铝土矿/本溪组/化石组合/孢粉组合/地层单位/成矿时代/河南省Key words
bauxite/Benxi Formation/fossil association/sporo-pollen association/stratigraphic unit/metallogenetic epoch/Henan Province分类
天文与地球科学引用本文复制引用
王令全,王军强,马晓辉,徐长钊,张坤,崔蓓蕾,付治国..河南石炭系本溪组古生物学划分对比方法研究[J].地质与勘探,2012,48(1):49-57,9.
