Late Pleistocene History of the North Pacific: Evidence from a Quantitative Study of Radiolaria in Core V21-173

Quaternary Research - Tập 3 - Trang 89-98 - 1973
Harvey Maurice Sachs1
1CLIMAP, Department of Geological Sciences, Brown University, Providence, RI 02912 USA

Tóm tắt

AbstractObjective quantitative estimates of paleo-oceanographic conditions in the North Pacific can be made by analyses of radiolarian assemblages. With appropriate computation, transfer functions developed in a study of surface sediments can be used to estimate oceanographic conditions in cores containing late Pleistocene radiolarian faunas. Analysis of core V21-173 indicates that conditions as warm as the Holocene were rare during the past 800,000 yr, and that the region experienced marked near-surface temperature drops correlative with Caribbean and continental records for the past 250,000 yr. A major world-wide warm event at about 400,000 yr is also indicated.

Tài liệu tham khảo

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Quaternary Research

Tập 3

89-98

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