Effects of Past Global Change on Life (1995) / Chapter Skim
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Pages 48-48
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Development of an integrated real-time scale for the Cenomanian-Turonian extinction interval, blending new 40Ar-39Ar ages from volcanic ashes (bentonites) , with 100,000- and 41,000-yr Milankovitch climate cycle deposits across the boundary, allows a precise timetable for environmental perturbation and C-T mass extinction to be developed at a resolution comparable to Quaternary studies of global change.
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