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Showing 1 to 1 of 1 for “"end-Marjuman extinction"”.
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Carbon cycle changes during the end-Marjuman (Cambrian) extinction in the Southern Appalachians
… Ordovician transition contains several trilobite extinctions. The first of these extinctions (the end-Marjuman) is thought to coincide with the Steptoean Positive Carbon Isotope Excursion or SPICE, a large and rapid excursion in the marine carbon isotope record. This excursion, which is expressed …