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Title

Organomineralization processes in freshwater stromatolites: A living example from eastern Patagonia

Authors
Martinuzzi, Vincent
Cusminsky, Gabriela
Burdin, Beatrice
Barmettler, Kurt
Vasconcelos, Crisogono
Published in Depositional Record. 2016, p. 130–146
Abstract Living stromatolites have been mostly described within shallow marine and (hyper)saline lacustrine environments. Southernmost South America lacks detailed investigations of these (organo)sedimentary buildups, particularly in regions experiencing extreme and variable environmental conditions. Here, we report and describe living freshwater stromatolites in the Maquinchao region, north-western Patagonia, Argentina. Fossil stromatolites characterized by globular and cauliflower shapes are also present in a continuous palaeoshoreline of a former lake at an altitude of 830 m, whereas their living counterparts only occur in the calm waters of sheltered or meandering sections of the Maquinchao River.
Keywords StromatolitesGeomicrobiologyPatagonia
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Research group Limnology and Geomicrobiology
Project FNS: 200021-155927/1
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PACTON, Muriel et al. Organomineralization processes in freshwater stromatolites: A living example from eastern Patagonia. In: Depositional Record, 2016, p. 130–146. https://archive-ouverte.unige.ch/unige:80609

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Deposited on : 2016-02-09

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