All Articles tagged Mesoproterozoic

• Science Paper
  September 01, 2022 EDT
  Post-depositional Transformations in Sedimentary Rocks and Implications for Paleoenvironmental Studies: Evidence From the Mesoproterozoic (∼1.1 Ga) of the Taoudeni Basin, Mauritania
  Mohamed GhnahallaAbderrazak El AlbaniAhmed Abd ElmolaOlabode M. BankoleClaude FontaineMohamed Salem SabarAlain TrentesauxClaude LaforestAlain MeunierCeline BoissardChenyi TuTimothy W. Lyons

  Understanding paleoenvironmental dynamics linked to biological evolution in Earth history is a major goal within the geological community. The difficulty of achieving this goal, at least in part, lies with...

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• Science Paper
  February 01, 2019 EDT
  Shallow Water Redox Conditions of the mid-Proterozoic Muskwa Assemblage, British Columbia, Canada
  Eric J. BellefroidNoah J. PlanavskyAshleigh V. S. HoodGalen P. HalversonKasparas Spokas

  The mid-Proterozoic was a time of apparent prolonged biological and geochemical stability, preceeding the environmental turmoil and rapid biological innovations that characterized the Neoproterozoic. Despite an upswing in work on...

  Abstract
• Science Paper
  October 01, 2017 EDT
  Oxygen, Climate and the Chemical Evolution of a 1400 Million Year Old Tropical Marine Setting
  Xiaomei WangShuichang ZhangHuajian WangChristian J. BjerrumEmma U. HammarlundEmma R. HaxenJin SuYu WangDonald E. Canfield

  The Xiamaling Formation is an exceptionally well-preserved sedimentary succession deposited on a marine passive margin about 1400 million years ago. We used a multi-proxy approach, including iron speciation, trace metal...

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• Science Paper
  February 01, 2014 EDT
  Geochemistry and Geochronology of Mesoproterozoic Basement Rocks From the Eastern Amery Ice Shelf and Southwestern Prydz Bay, East Antarctica: Implications for a Long-Lived Magmatic Accretion in a Continental Arc
  Xiaochun LiuBor-ming JahnYue ZhaoJian LiuLiudong Ren

  The high-grade metamorphic rocks from the eastern Amery Ice Shelf and southwestern Prydz Bay of East Antarctica represent reworked Rayner Complex during the late Neoproterozoic/Cambrian metamorphism. These Mesoproterozoic basement rocks...

  Abstract