ArticleScientific reports2016
Microbial and diagenetic steps leading to the mineralisation of Great Salt Lake microbialites.
Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
- Documenting the occurrence of microbial carbonate deposits in Puerto Rico.Scientific reports · 2026Article
- Chemosynthesis enhances net primary production and nutrient cycling in a hypersaline microbial mat.The ISME journal · 2025Article
- The eukaryome of modern microbialites reveals distinct colonization across aquatic ecosystems.NPJ biofilms and microbiomes · 2024Article
- Wood-Ljungdahl pathway encoding anaerobes facilitate low-cost primary production in hypersaline sediments at Great Salt Lake, Utah.FEMS microbiology ecology · 2024Article
- Newly identified nematodes from the Great Salt Lake are associated with microbialites and specially adapted to hypersaline conditions.Proceedings. Biological sciences · 2024Article
- Carbonate precipitation and phosphate trapping by microbialite isolates from an alkaline insular lake (Bagno dell'Acqua, Pantelleria Island, Italy).Frontiers in microbiology · 2024Article
- Non-charismatic waterbodies and ecosystem disservices: Mine pit lakes are underrepresented in the literature.Frontiers in microbiology · 2022Review
- Unexpected Abundance and Diversity of Phototrophs in Mats from Morphologically Variable Microbialites in Great Salt Lake, Utah.Applied and environmental microbiology · 2020Article
- Influence of temperature, salinity and MgScientific reports · 2019Article
- Deciphering Biosignatures in Planetary Contexts.Astrobiology · 2019Article
- Microbially induced potassium enrichment in Paleoproterozoic shales and implications for reverse weathering on early Earth.Nature communications · 2019Article
- Calcified coccoid from Cambrian Miaolingian: Revealing the potential cellular structure of Epiphyton.PloS one · 2019Article
- Key Role of Alphaproteobacteria and Cyanobacteria in the Formation of Stromatolites of Lake Dziani Dzaha (Mayotte, Western Indian Ocean).Frontiers in microbiology · 2018Article
- The Effect Of microbial Mats In The Decay Of Anurans With Implications For Understanding Taphonomic Processes In The Fossil Record.Scientific reports · 2017Article
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- Dolomitic Microfossil Preservation in a Cryogenian Microbial Reef, Arkaroola (South Australia).GeobiologyArticle
- Microbialite Diversity and Ocean Redox Geochemistry of the Late Tonian Callison Lake Formation.GeobiologyArticle
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Authors and funding
16 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Microbialites are widespread in modern and fossil hypersaline environments, where they provide a unique sedimentary archive. Authigenic mineral precipitation in modern microbialites results from a complex interplay between microbial metabolisms, organic matrices and environmental parameters. Here, we combined mineralogical and microscopic analyses with measurements of metabolic activity in order to characterise the mineralisation of microbial mats forming microbialites in the Great Salt Lake (Utah, USA). Our results show that the mineralisation process takes place in three steps progressing along geochemical gradients produced through microbial activity. First, a poorly crystallized Mg-Si phase precipitates on alveolar extracellular organic matrix due to a rise of the pH in the zone of active oxygenic photosynthesis. Second, aragonite patches nucleate in close proximity to sulfate reduction hotspots, as a result of the degradation of cyanobacteria and extracellular organic matrix mediated by, among others, sulfate reducing bacteria. A final step consists of partial replacement of aragonite by dolomite, possibly in neutral to slightly acidic porewater. This might occur due to dissolution-precipitation reactions when the most recalcitrant part of the organic matrix is degraded. The mineralisation pathways proposed here provide pivotal insight for the interpretation of microbial processes in past hypersaline environments.
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