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Radiocarbon measurements of stromatolite heads and crusts at the Salgada Lagoon, Rio de Janeiro State, Brazil

Authors
Journal
Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms
0168-583X
Publisher
Elsevier
Publication Date
Volume
172
Identifiers
DOI: 10.1016/s0168-583x(00)00391-8
Disciplines
  • Biology
  • Chemistry
  • Ecology
  • Geography

Abstract

Abstract In this work, we prepared and measured some stromatolite carbonate samples, from Salgada Lagoon, Rio de Janeiro, Brazil. Stromatolites are bio-sedimentary, laminated, carbonate structures produced by sedimentary, chemical and biological processes related to the development and growth of microbial benthic communities, mainly dominated by blue algae and cyanobacteria. These structures are present in the geological record in rocks older than 3.0 billion years and have been used to study the origin of primitive life and variations in past environmental conditions. Detailed AMS measurements were performed at PRIME Lab (Purdue Rare Isotope Measurement Laboratory, Purdue University, IN, USA).

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