Now showing items 1-2 of 2

  • Multiple oscillations in Neoarchaean atmospheric chemistry 

    Izon, Gareth; Zerkle, Aubrey Lea; Zhelezinskaya, Yadviga; Farquhar, James; Newton, Robert J.; Poulton, Simon W.; Eigenbrode, Jennifer L.; Claire, Mark (2015-12-01) - Journal article
    The Great Oxidation Event (GOE) represents a crucial juncture in Earth history, signifying the rise in atmospheric oxygen from parts per million to per cent levels at ~2.45-2.32 billion-years-ago (Ga). Although planetary ...
  • SQUID-SIMS is a useful approach to uncover primary signals in the Archean sulfur cycle 

    Fischer, Woodward W; Fike, David A; Johnson, Jena E; Raub, Timothy D; Guan, Yunbin; Kirschvink, Joseph L; Eiler, John M (2014-04-15) - Journal article
    Many aspects of Earth's early sulfur cycle, from the origin of mass-anomalous fractionations to the degree of biological participation, remain poorly understood-in part due to complications from postdepositional diagenetic ...