Journal article
Isotopic biosignatures in carbonate‐rich, cyanobacteria‐dominated microbial mats of the Cariboo Plateau, B.C.
Abstract
Photosynthetic activity in carbonate-rich benthic microbial mats located in saline, alkaline lakes on the Cariboo Plateau, B.C. resulted in pCO2 below equilibrium and δ(13) CDIC values up to +6.0‰ above predicted carbon dioxide (CO2 ) equilibrium values, representing a biosignature of photosynthesis. Mat-associated δ(13) Ccarb values ranged from ~4 to 8‰ within any individual lake, with observations of both enrichments (up to 3.8‰) and …
Authors
Brady AL; Druschel G; Leoni L; Lim DSS; Slater GF
Journal
Geobiology, Vol. 11, No. 5, pp. 437–456
Publisher
Wiley
Publication Date
September 2013
DOI
10.1111/gbi.12050
ISSN
1472-4677