Estimates of Cenozoic Oceanic Sedimentation Rates

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Science  01 Jul 1977:
Vol. 197, Issue 4298, pp. 53-55
DOI: 10.1126/science.197.4298.53


Estimation of average Cenozoic sedimentation rates for the Atlantic, Indian, and Pacific oceans indicates global synchronous fluctuations. Paleocene-early Eocene and late Eocene-early Miocene rates are only a fraction of middle Eocene and middle Miocene-Recent rates. These changes must reflect significantly different modes of continental weathering, which may be due to alternate states of atmospheric circulation marked by reduction of global precipitation.