Isotopic fingerprints of microbial respiration in aragonite from Bahamian stromatolites

Research Article| November 01, 2006 Isotopic fingerprints of microbial respiration in aragonite from Bahamian stromatolites Miriam S. Andres; Miriam S. Andres 1Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149, USA Search for other works by this author on: GSW Google Scholar Dawn Y. Sumner; Dawn Y. Sumner 2Geology Department, University of California–Davis, 1 Shields Avenue, Davis, California 95616, USA Search for other works by this author on: GSW Google Scholar R. Pamela Reid; R. Pamela Reid 3Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149, USA Search for other works by this author on: GSW Google Scholar Peter K. Swart Peter K. Swart 3Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Miriam S. Andres 1Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149, USA Dawn Y. Sumner 2Geology Department, University of California–Davis, 1 Shields Avenue, Davis, California 95616, USA R. Pamela Reid 3Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149, USA Peter K. Swart 3Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149, USA Publisher: Geological Society of America Received: 01 Apr 2006 Revision Received: 12 Jun 2006 Accepted: 16 Jun 2006 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 The Geological Society of America, Inc. Geology (2006) 34 (11): 973–976. https://doi.org/10.1130/G22859A.1 Article history Received: 01 Apr 2006 Revision Received: 12 Jun 2006 Accepted: 16 Jun 2006 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Miriam S. Andres, Dawn Y. Sumner, R. Pamela Reid, Peter K. Swart; Isotopic fingerprints of microbial respiration in aragonite from Bahamian stromatolites. Geology 2006;; 34 (11): 973–976. doi: https://doi.org/10.1130/G22859A.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Authigenic aragonite preserves a carbon isotopic record of heterotrophic microbial influences on dissolved inorganic carbon (DIC) in microenvironments within shallow subtidal stromatolites from Highborne Cay, Bahamas. A greater amount of aragonite precipitates when and where respiration, rather than photosynthesis, influences local DIC, which is consistent with sulfate reduction promoting carbonate precipitation and calcium release during decay of exopolymeric substances. Thus, heterotrophs play a more direct role than phototrophs in stromatolite lithification. Cyanobacteria are spatially associated with aragonite containing heterotrophic isotopic signatures. Hence, the absence of an autotrophic isotopic signature in the rock record does not imply the absence of photosynthetic organisms. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.