七溪岭组

时代属早奥陶世道保湾期至中奥陶世,大致相当于欧洲阿雷尼格期晚期至兰维恩期。分布于江西西南部宁冈一带。命名地点在江西宁冈新城七溪岭附近。为海相硅质、砂质沉积,主要为灰黑色中薄层硅质板岩夹炭质板岩,含丰富的笔石,自下而上包含十个笔石带:①Tetragratus approximatus带,②Pendeograptus fruticosus带,③Didymograptus“protobifidus”带,④Didymograptus abnormis带,⑤Oncograptus magnus带,⑥Cardiograptus cor带,⑦Undulograptus austrodentatus带,⑧Paraglossograptus tantaculatus带,⑨Nicholsonograptus fasciculatus带,⑩Pterograptus elegans带。共厚359米。与下伏爵山沟组呈整合接触。

Concept & Semantic
  34

Alias

七溪岭组

Contributor

contributed at 2011-10-11

Classification(s)

Earth System(in Chinese)Geostratigraphic stratigraphy

Detailed Description

English
Name Qixiling Fm
Chinese
Name 七溪岭组
Description 时代属早奥陶世道保湾期至中奥陶世,大致相当于欧洲阿雷尼格期晚期至兰维恩期。分布于江西西南部宁冈一带。命名地点在江西宁冈新城七溪岭附近。为海相硅质、砂质沉积,主要为灰黑色中薄层硅质板岩夹炭质板岩,含丰富的笔石,自下而上包含十个笔石带:①Tetragratus approximatus带,②Pendeograptus fruticosus带,③Didymograptus“protobifidus”带,④Didymograptus abnormis带,⑤Oncograptus magnus带,⑥Cardiograptus cor带,⑦Undulograptus austrodentatus带,⑧Paraglossograptus tantaculatus带,⑨Nicholsonograptus fasciculatus带,⑩Pterograptus elegans带。共厚359米。与下伏爵山沟组呈整合接触。

How to Cite

NNU_Group (2011). 七溪岭组, Concept & Semantic, OpenGMS, https://geomodeling.njnu.edu.cn/repository/concept/b133957b-486f-4270-87ab-77704159689d
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contributed at 2011-10-11

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