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A. Aftabi
DevonianMeteoriteOrganic matterExtinctionIsotopes of oxygen
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About 35 samples were collected from lower and upper parts of the proposed Frasnian-Famennian boundary in three sections of Upper Devonian marine sediments of the Kerman province. The biostratigraphical and geochemical studies indicate that about 45% extinction of brachiopods probably caused by the Frasnian-Famennian bioevents, which is slightly higher than thr rate of DevonianCarboniferous extinction elsewhere. The results of isotopic carbon and oxygen isotope analysis (δ 13 C%0 VPDB and δ 10 O...
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