The late early Cambrian microbial reefs immediately after the demise of archaeocyathan reefs, Hunan Province, South China

The archaeocyath-bearing reefs that first appeared in South China in the Atdabanian were last seen in the lower Toyonian (e.g., in the Tianheban and Jindingshan formations). The upper Toyonian-lower Amgan Qingxudong Formation of Hunan Province examined in this study includes large-sized reefs formed...

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Bibliographic Details
Published in:Palaeogeography, Palaeoclimatology, Palaeoecology
Main Authors: Adachi, Natsuko, Ezaki, Yoichi, Liu, Jianbo
Other Authors: Adachi, N (reprint author), Naruto Univ Educ, Dept Geosci, Naruto, Tokushima 7728502, Japan., Naruto Univ Educ, Dept Geosci, Naruto, Tokushima 7728502, Japan., Osaka City Univ, Dept Geosci, Sumiyoshi Ku, Osaka 5588585, Japan., Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China.
Format: Journal/Newspaper
Language:English
Published: palaeogeography palaeoclimatology palaeoecology 2014
Subjects:
Archaeocyaths
late early Cambrian
Extinction
Microbial reefs
SHACKLETON LIMESTONE
SIBERIAN PLATFORM
GUIZHOU PROVINCE
MASS EXTINCTION
METAZOAN REEFS
CONSTRUCTION
TRANSITION
AUSTRALIA
SUBDIVISION
ANTARCTICA
Shackleton
Antarc*
Antarctica
Online Access:https://hdl.handle.net/20.500.11897/210658
https://doi.org/10.1016/j.palaeo.2014.04.013
Description
Summary:The archaeocyath-bearing reefs that first appeared in South China in the Atdabanian were last seen in the lower Toyonian (e.g., in the Tianheban and Jindingshan formations). The upper Toyonian-lower Amgan Qingxudong Formation of Hunan Province examined in this study includes large-sized reefs formed solely by calcimicrobes of Epiphyton, Kordephyton, Girvanella, Hedstroemia, and Renalcis. During the middle and upper Cambrian, small-scale stromatolite reefs were formed. The Qingxudong reefs are therefore interpreted to be the most well-developed microbial reefs of the post archaeocyath-bearing reefs in the late early Cambrian. The transition from archaeocyath-bearing to purely microbial reefs was caused by a decline in the diversity of metazoans, and was accompanied by a reduction in the abundance of reefs, possibly related in part to late early Cambrian regression. The late early Cambrian reefs of South China contain a well-preserved record of reef succession, and provide important insights into the factors that led to the demise of archaeocyath-bearing reefs and the subsequent long-lasting hindrances to the development of skeletal-dominated reefs during the middle and late Cambrian. (C) 2014 Elsevier B.V. All rights reserved. http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000337777500005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 Geography, Physical Geosciences, Multidisciplinary Paleontology SCI(E) 1 ARTICLE nadachi@naruto-u.ac.jp 45-55 407

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