Insights into hydrothermal controls and processes leading to the formation of the Late Ediacaran Gaoyan stratiform manganese-carbonate deposit, Southwest China
Sign Up to like & getrecommendations! Published in 2021 at "Ore Geology Reviews"
DOI: 10.1016/j.oregeorev.2021.104524
Abstract: Abstract The stratiform Mn-carbonate ore from the Gaoyan deposit occurs within terrigenous-sedimentary rocks of the upper part of the Ediacaran Doushantuo Formation and is characterized by rhodochrosite spherulites. Here we examine the effect of depositional… read more here.
Keywords: deposit; insights hydrothermal; stratiform; formation ... See more keywords
Reconstruction of the Ediacaran sulfur cycle and oceanic redox evolution in shallow-water regions of the Yangtze platform, South China
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DOI: 10.1016/j.precamres.2020.106004
Abstract: Abstract The emergence and proliferation of metazoan lineage in the Ediacaran Period is commonly hypothesized to reflect an increase in the oxygen content of marine environments. However, recent studies suggest that the Ediacaran oceanic redox… read more here.
Keywords: ediacaran; shallow water; yangtze platform; oceanic redox ... See more keywords
Palaeobiology of latest Ediacaran phosphorites from the upper Khesen Formation, Khuvsgul Group, northern Mongolia
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DOI: 10.1080/14772019.2018.1443977
Abstract: Microfossil assemblages that include large acritarchs with complex processes, known as Doushantuo-Pertatataka-type acritarchs, are recovered from early Ediacaran successions globally. They are commonly found in shale and chert lithologies, but their diversity and palaeobiological significance… read more here.
Keywords: phosphorites upper; upper khesen; khesen formation; ediacaran ... See more keywords
Cochleatina: an enigmatic Ediacaran–Cambrian survivor among small carbonaceous fossils (SCFs)
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DOI: 10.1111/pala.12484
Abstract: Conspicuously few body‐fossil taxa are known to span the Ediacaran–Cambrian boundary, a pattern usually taken to signal either a terminal Proterozoic mass extinction, or taphonomic failure. We draw attention to the emerging record of small… read more here.
Keywords: ediacaran; carbonaceous fossils; fossils scfs; ediacaran cambrian ... See more keywords
Demise of Ediacaran dolomitic seas marks widespread biomineralization on the Siberian Platform
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DOI: 10.1130/g38367.1
Abstract: The trigger for biomineralization of metazoans in the terminal Ediacaran, ca. 550 Ma, has been suggested to be the rise of oxygenation or an increase in seawater Ca concentration, but geochemical and fossil data have… read more here.
Keywords: seawater; chemistry; ediacaran; siberian platform ... See more keywords