Widespread Miocene deep-sea hiatuses: Coincidence with periods of global cooling

Geology
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Abstract

High-resolution biostratigraphic analyses of Miocene deep-sea cores reveal eight intervals of widespread hiatuses in the world ocean at 23.0–22.5, 20.0–18.0, 16.0–15.0, 13.5–12.5, 12.0–11.0, 10.0–9.0, 7.5–6.2, and 5.2–4.7 m.y. ago. In complete sections these hiatuses correspond to intervals of cool faunal and floral assemblages, rapid enrichment of δ18O, and sea-level regressions. These factors suggest that Miocene deep-sea hiatuses result from an increased intensity of circulation and corrosiveness of bottom currents during periods of increased polar refrigeration.

Publication type Article
Publication Subtype Journal Article
Title Widespread Miocene deep-sea hiatuses: Coincidence with periods of global cooling
Series title Geology
DOI 10.1130/0091-7613(1982)10<577:WMDHCW>2.0.CO;2
Volume 10
Issue 11
Year Published 1982
Language English
Publisher Geological Society of America
Description 5 p.
First page 577
Last page 581
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