[1]蔡雄飞,罗中杰,叶 琴.湖南四都坪南沱组沉积特征与古气候变化耦合关系[J].华东地质,2017,38(02):91-98.[doi:10.16788/j.hddz.32-1865/P.2017.02.002]
 CAI Xiong-fei,LUO Zhong-jie,YE Qin.Sedimentary characteristics of the Nantuo Formation in Siduping, Hunan and its coupling relationship with paleoclimate[J].East China Geology,2017,38(02):91-98.[doi:10.16788/j.hddz.32-1865/P.2017.02.002]
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湖南四都坪南沱组沉积特征与古气候变化耦合关系()
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《华东地质》[ISSN:2096-1871/CN:32-1865/P]

卷:
38
期数:
2017年02期
页码:
91-98
栏目:
基础地质
出版日期:
2017-06-15

文章信息/Info

Title:
Sedimentary characteristics of the Nantuo Formation in Siduping, Hunan and its coupling relationship with paleoclimate
文章编号:
2096-1871(2017)02-091-08
作者:
蔡雄飞罗中杰叶 琴
(中国地质大学生物地质与环境地质国家重点实验室,武汉 430074; 中国地质大学地球科学学院,武汉 430074)
Author(s):
CAI Xiong-feiLUO Zhong-jieYE Qin
(State Key Laboratory of Biogeology and Environmental Geology,Wuhan 430074,China; School of Earth Sciences, China University of Geosciences, Wuhan 430074,China)
关键词:
冰碛岩 沉积特征 古气候 南沱组 湖南
Keywords:
tillite sedimentary characteristics paleoclimate Nantuo Formation Hunan Province
分类号:
P588.2
DOI:
10.16788/j.hddz.32-1865/P.2017.02.002
文献标志码:
A
摘要:
运用现代冰川理论并结合南沱组冰碛岩研究现状,根据湖南四都坪南沱组宏观地层序列和微观构造特征,识别并总结2期冰期和2期间冰期沉积特点,认为冰碛岩前缘是沉积作用活跃地带,以重力碎屑流、浊流为特点,间冰期以深水和浅水的牵引流为特点。结合沉积作用与古气候、海平面变化特征,认为该区南沱组冰碛岩由古气候控制,海平面的起落导致形成不同的沉积类型。
Abstract:
On the basis of the modern theory of glacier and research progress of the Nantuo Formation tillite, this study summarized the sedimentary features of the two glacial periods and two interglacial periods in combination to the macroscopic stragtigraphic sequences and microscopic structures of the Nantuo Formation in Siduping of Hunan Province. The results show that the front margin of the tillite is an active zone of sedimentation characterized by gravitational debris flow and turbidity current. And the interglacial period was characteristic of deep and shallow water tractive current deposits. The sedimentation of the Nantuo Formation and change characteristic of paleoclimate and sea level suggest that the tillite of the Nantuo Formation was controlled by the paleoclimate and the big fluctuations of sea level resulted in various sedimentary types.

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备注/Memo

备注/Memo:
*收稿日期:2016-06-24 修订日期:2016-08-18 责任编辑:谭桂丽
基金项目:中国地质调查局“神农架―雪峰山地区区域地质专项调查(项目编号:12120114066301)”资助。
第一作者简介:蔡雄飞,1952年生,男,研究员,主要从事地层学和沉积学研究。
更新日期/Last Update: 2017-06-16