Lower Triassic carbonate δ238U record demonstrates expanded oceanic anoxia during Smithian Thermal Maximum and improved ventilation during Smithian-Spathian boundary cooling event
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DOI: 10.1016/j.palaeo.2019.109393
Abstract: Abstract The Smithian-Spathian boundary (SSB) transition was recently identified as a major biocrisis on the road to marine ecosystem recovery following the end-Permian mass extinction. Marine anoxia is hypothesized to have played an important role… read more here.
Keywords: record; anoxia; anoxia smithian; spathian boundary ... See more keywords
The Smithian–Spathian boundary in North Greenland: implications for extreme global climate changes
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DOI: 10.1017/s0016756819000669
Abstract: Abstract Smithian–lower Anisian strata in Peary Land, North Greenland, were deposited at ∼45° N on the northern margin of Pangaea in offshore to upper shoreface settings. The well-constrained succession (palynology and ammonite biostratigraphy) documents a… read more here.
Keywords: north greenland; spathian boundary; late smithian; smithian thermal ... See more keywords