• Euxinia or euxinic conditions occur when water is both anoxic and sulfidic. This means that there is no oxygen (O2) and a raised level of free hydrogen...
    54 KB (6,621 words) - 21:12, 21 September 2024
  • Thumbnail for Late Ordovician mass extinction
    pulse was associated with intense worldwide anoxia (oxygen depletion) and euxinia (toxic sulfide production), which persisted into the subsequent Rhuddanian...
    102 KB (11,101 words) - 04:09, 19 October 2024
  • enhanced volcanism (the release of CO2) as the "central external trigger for euxinia." Human activities in the Holocene epoch, such as the release of nutrients...
    41 KB (5,022 words) - 00:27, 8 September 2024
  • Thumbnail for Permian–Triassic extinction event
    Traps, which released sulfur dioxide and carbon dioxide, resulting in euxinia (oxygen-starved, sulfurous oceans), elevating global temperatures, and...
    379 KB (40,599 words) - 02:06, 1 November 2024
  • Thumbnail for Hangenberg event
    ISSN 0012-8252. Marynowski, Leszek; Filipiak, Paweł (2007-05-01). "Water column euxinia and wildfire evidence during deposition of the Upper Famennian Hangenberg...
    53 KB (6,069 words) - 04:00, 30 October 2024
  • Boring Billion may have been oxygen-poor, nutrient-poor and sulfidic (euxinia), populated by mainly anoxygenic purple bacteria, a type of bacteriochlorophyll-based...
    72 KB (8,149 words) - 18:02, 27 October 2024
  • Thumbnail for Capitanian mass extinction event
    erosion, which in turn has been propounded as a factor enhancing oceanic euxinia. Euxinia may have been exacerbated even further by the increasing sluggishness...
    69 KB (7,445 words) - 23:52, 29 April 2024
  • reoxygenation during OAE2. Sulphate reduction increased during OAE2, causing euxinia, a type of anoxia defined by sulphate reduction and hydrogen sulphide production...
    104 KB (10,780 words) - 03:56, 19 October 2024
  • Thumbnail for Triassic–Jurassic extinction event
    zone euxinia through organic matter respiration and carbon dioxide release. Off the shores of the Wrangellia Terrane, the onset of photic zone euxinia was...
    157 KB (16,679 words) - 19:14, 31 October 2024
  • Thumbnail for Extinction event
    Hongyan; Chen, Daizhou; Lu, Bin; Shi, Zhensheng; Tao, Huifei (2018). "Ocean euxinia and climate change "double whammy" drove the Late Ordovician mass extinction"...
    147 KB (15,032 words) - 05:02, 30 October 2024