中国科学院南海海洋研究所机构知识库
Advanced  
SCSIO OpenIR  > 中科院边缘海地质重点实验室  > 期刊论文
学科主题: Geology
题名: Microbial mounds prior to the Frasnian-Famennian mass extinctions, Hantang, Guilin, South China
作者: Shen, JW ; Webb, GE ; Qing, HR
通讯作者: jwshen@scsio.ac.cn
关键词: Devonian ; Frasnian ; microbial mounds ; platform margin ; South China
刊名: SEDIMENTOLOGY
发表日期: 2010
卷: 57, 期:7, 页:1615-1639
收录类别: sci
部门归属: [Shen, Jianwei] Chinese Acad Sci, Dept Marine Geol, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Shen, Jianwei] Chinese Acad Sci, Key Lab Marginal Sea Geol, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Shen, Jianwei] Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510301, Guangdong, Peoples R China; [Webb, Gregory E.] Queensland Univ Technol, Sch Nat Resource Sci, Brisbane, Qld 4001, Australia; [Qing, Hairuo] Univ Regina, Dept Geol, Regina, SK S4S 0A2, Canada
项目归属: 海洋地质
摘要: Late Frasnian mounds of the Yunghsien Formation, Guilin, South China, developed as part of the Guilin platform, mostly in reef-flat and platform margin settings. Microbial mounds in platform margin settings at Hantang, about 10 km west of Guilin, contain Frasnian biota, such as Stachyodes and Kuangxiastraea and, thus, occur below the Frasnian-Famennian mass extinction boundary. Platform margin facies were dominated by microbes, algae and receptaculitids. Massive corals and stromatoporoids are not common and rarely show reef-building functions as they did in Givetian time. The margin mounds are composed of brachiopod-receptaculitid cementstone, and a variety of boundstones that contain Rothpletzella, Renalcis, thrombolite and stromatolite. Other microbial communities include Girvanella, Izhella, Ortonella and Wetheredella. Solenoporoid algae are abundant locally. Zebra structures and neptunian dykes are well-developed at some intervals. Pervasive early cementation played an important role in lithification of the microbial boundstones and rudstones. Frasnian reefs of many regions of the world were constructed by stromatoporoids and corals, although a shift to calcimicrobe-dominated frameworks occurred before the Famennian. However, the exact ages of many Frasnian margin outcrops are poorly constrained owing to difficulties dating shallow carbonate facies. The Hantang mounds represent a microbe-dominated reef-building community with rare skeletal reef builders, consistent with major Late Devonian changes in reef composition, diversity and guild structure occurring before the end of the Frasnian. A similar transition occurred in the Canning Basin of Western Australia, but coeval successions in North America, Western Europe and the northern Urals are either less well-known or represent different bathymetric settings. The transition in reef-building style below the Frasnian-Famennian boundary is documented here in the two best exposed successions on two continents, which may have been global. Set in the larger context of Late Devonian and Mississippian microbial reef-building, the Hantang mounds help to demonstrate that controls on microbial reef communities differed from those on larger skeletal reef biota. Calcimicrobes replaced stromatoporoids as major reef builders before the Frasnian-Famennian extinction event, and increasing stromatoporoid diversity towards the end of the Famennian did not result in a resurgence of skeletal reef frameworks. Calcimicrobes dominated margin facies through the Famennian, but declined near the Devonian-Carboniferous boundary. Stromatolite and thrombolite facies, which occurred behind the mound margin at Hantang, rose to dominate Mississippian shallow-water reef frameworks with only a minor resurgence of the important Frasnian calcimicrobe Renalcis in the Visean when well-skeletonized organisms (corals) also became volumetrically significant frame builders again.
原文出处: 查看原文
WOS记录号: WOS:000284321500002
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4300
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Microbial mounds prior to the Frasnian-Famennian mass extinctions, Hantang, Guilin, South China.pdf(2649KB)----开放获取--View Download

Recommended Citation:
Shen, JW; Webb, GE; Qing, HR.Microbial mounds prior to the Frasnian-Famennian mass extinctions, Hantang, Guilin, South China,SEDIMENTOLOGY,2010,57(7):1615-1639
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Shen, JW]'s Articles
[Webb, GE]'s Articles
[Qing, HR]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Shen, JW]‘s Articles
[Webb, GE]‘s Articles
[Qing, HR]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Microbial mounds prior to the Frasnian-Famennian mass extinctions, Hantang, Guilin, South China.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院南海海洋研究所 - Feedback
Powered by CSpace