Microbialites of modern siliciclastic rock coasts-Reference-Cited by-同舟云学术

Microbialites of modern siliciclastic rock coasts

Published:2022-07-11 Issue:7 Volume:92 Page:619-634
ISSN:1938-3681
Container-title:Journal of Sedimentary Research
language:en
Short-container-title:

Author:

Cooper Andrew¹²,Smith Alan²,Rishworth Gavin³⁴⁵,Dodd Carla⁶⁴,Forbes Matt⁷,Cawthra Hayley⁸⁴⁵,Anderson Callum⁶⁴

Affiliation:

1. 1 School of Geography and Environmental Science, University of Ulster, Coleraine, Northern Ireland, U.K.

2. 2 Discipline of Geology, School of Agriculture, Earth and Environmental Sciences, University of KwaZulu–Natal, Westville, South Africa

3. 3 Department of Zoology, Nelson Mandela University, Gqeberha, South Africa

4. 7 Institute for Coastal and Marine Research (CMR), Nelson Mandela University, Gqeberha, South Africa

5. 8 African Centre for Coastal Palaeoscience, Nelson Mandela University, Gqeberha, South Africa

6. 4 Department of Geosciences, Nelson Mandela University, Gqeberha, South Africa

7. 5 ARC Centre of Excellence for Australian Biodiversity and Heritage, University of Wollongong, Australia

8. 6 Geophysics and Remote Sensing Unit, Council for Geoscience, Western Cape Regional Office, Bellville, South Africa

Abstract

ABSTRACT Contemporary microbialite formation has been documented on rock coasts in a variety of geomorphic, oceanographic, and climatic settings. Based on a synthesis of these diverse occurrences plus new observations, a generalized model is presented. At each locality microbialite development is associated with discharge of mineralized freshwater in the coastal zone. Microbialite formation in the high intertidal and supratidal zones of rock coasts occurs in a variety of sub-environments (cliff face, shore platform surface, platform surface pools, boulder beach, and sand beach) and forms a variety of laminated rock encrustations and oncoids. Allochthonous microbialites occur on the backshore as breccias of reworked microbialite clasts, oncoids transported from rock pools, and partly encrusted boulders. The microbialite-influenced rock coast is a distinct type of siliciclastic environment that offers potential comparison for ancient microbialite occurrences. It has preservation potential in both transgressive and regressive settings. Potential ancient examples are suggested.

Publisher

Society for Sedimentary Geology

Subject

Geology

Link

https://pubs.geoscienceworld.org/sepm/jsedres/article-pdf/92/7/619/5651241/i1938-3681-92-7-619.pdf

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