Toward an orbital chronology for the early Aptian Oceanic Anoxic Event (OAE1a, ~120 Ma)

Authors :: Yongxiang Li
Isabella Premoli Silva
Timothy D Herbert
Elisabetta Erba
David M. Bice
Isabel P. Montañez
David A. Osleger
Timothy J. Bralower
Michael A. Arthur
Source :: Earth and Planetary Science Letters. 271:88-100
Publication Year :: 2008
Publisher :: Elsevier BV, 2008.
Abstract: The early Aptian Oceanic Anoxic Event (OAE1a, 120 Ma) represents a geologically brief time interval in the mid-Cretaceous greenhouse world that is characterized by increased organic carbon accumulation in marine sediments, sudden biotic changes, and abrupt carbon-isotope excursions indicative of significant perturbations to global carbon cycling. The brevity of these drastic environmental changes (

Subjects :: Total organic carbon
Milankovitch cycles
Environmental magnetism
Aptian
Anoxic waters
Carbon cycle
Paleontology
Geophysics
Oceanography
Space and Planetary Science
Geochemistry and Petrology
Earth and Planetary Sciences (miscellaneous)
Abrupt climate change
sense organs
Geology
Chronology

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