Carbon cycle instability and orbital forcing during the Middle Eocene Climatic Optimum
نویسندگان
چکیده
منابع مشابه
Orbital forcing of the Paleocene and Eocene carbon cycle
Multimillion-year proxy records across the Paleocene and Eocene show prominent variations on orbital time scales. The cycles, which have been identified at various sites across the globe, preferentially concentrate spectral power at eccentricity and precessional frequencies. It is evident that these cycles are an expression of changes in global climate and carbon cycling paced by astronomical f...
متن کاملA middle Eocene carbon cycle conundrum
1 The global carbon cycle The global carbon cycle encompasses the sum of processes that determine the amount of carbon within, and fluxes between, different carbon reservoirs on Earth (Fig. 1). These processes are quantitatively important on a range of timescales and can induce both short-term fluctuations and changes in steady-state conditions1–3. On timescales of up to centuries and thousands...
متن کاملNew biostratigraphic, magnetostratigraphic and isotopic insights into the Middle Eocene Climatic Optimum in low latitudes
Article history: Received 14 June 2010 Received in revised form 13 September 2010 Accepted 19 September 2010 Available online 25 September 2010
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The Middle Eocene Climatic Optimum (MECO; ~ 40 million years ago [Ma]) is one of the most prominent transient global warming events in the Paleogene. Although the event is well documented in geochemical and isotopic proxy records at many locations, the marine biotic response to the MECO remains poorly constrained. We present new high-resolution, quantitative records of siliceous microplankton a...
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M. ELLIOT SMITH1*, ALAN R. CARROLL1 AND ERICH R. MUELLER2 Department of Geology and Geophysics, University of Wisconsin-Madison, 1215 W Dayton St., Madison WI 53706, USA Department of Geography, University of Colorado, Boulder, Colorado 80309, USA *Current address: Department of Geology, Sonoma State University, 1801 E Cotati Ave, Rohnert Park, California 94928, USA †e-mail: michael.smith@sonom...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2019
ISSN: 2045-2322
DOI: 10.1038/s41598-019-45763-2