Living Dendrolitic Microbial Mats in Hamelin Pool, Shark Bay, Western Australia
Autor: | Kathleen Grey, Stanley M. Awramik, R. Pamela Reid, John F. Stolz, Erica P. Suosaari |
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Jazyk: | angličtina |
Rok vydání: | 2018 |
Předmět: |
0301 basic medicine
ved/biology.organism_classification_rank.species Intertidal zone 010502 geochemistry & geophysics Geologic record Lyngbya 01 natural sciences Shrub cyanobacteria 03 medical and health sciences dendrolite Microbial mat 0105 earth and related environmental sciences biology ved/biology Ecology Hamelin Pool Ephemeral key lcsh:QE1-996.5 microbialites biology.organism_classification lcsh:Geology shrubs 030104 developmental biology Lyngbya aestuarii General Earth and Planetary Sciences Bay non-lithifying microbial mats Geology |
Zdroj: | Geosciences, Vol 8, Iss 6, p 212 (2018) Geosciences Volume 8 Issue 6 |
ISSN: | 2076-3263 |
Popis: | Hamelin Pool, Shark Bay, Western Australia, is home to the largest and most diverse assemblage of living marine stromatolites, with shapes and sizes comparable to ancient structures. A recent field-intensive program revealed seasonally ephemeral occurrences of modern dendrolitic microbial mats forming in intertidal, low energy settings. Dominated by filamentous cyanobacteria, dendrolitic microbial mats are formed when filaments provide a supporting framework as a result of gliding mobility, to build a shrubby morphology. Dendrolites, known throughout the rock record, refer to macroscopic microbialites with mesostuctures composed of unlaminated arborescent structures called shrubs. In these modern examples, thick filaments of Lyngbya aestuarii form the &ldquo trunk&rdquo of the bush, with finer filaments of Lyngbya fragilis, Phormidium sp. and Schizothrix sp. forming the &ldquo branches&rdquo These biologically-influenced dendrolitic structures provide insight into the complex interplay of microbial communities and the environment, broadening our understanding of shrub and dendrolite formation throughout the rock record. |
Databáze: | OpenAIRE |
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