Symbiont 'bleaching' in planktic foraminifera during the Middle Eocene Climatic Optimum
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چکیده
منابع مشابه
Did Photosymbiont Bleaching Lead to the Demise of Planktic Foraminifer Morozovella at the Early Eocene Climatic Optimum?
The symbiont-bearing mixed-layer planktic foraminiferal genera Morozovella and Acarinina were among the most important calcifiers of early Paleogene tropical-subtropical oceans. A marked and permanent switch in the abundance of these genera is known to have occurred at low-latitude sites at the beginning of the Early Eocene Climatic Optimum (EECO), such that the relative abundance of Morozovell...
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Larger benthic foraminifera (LBF) are common and diverse throughout the Paleogene sediments of southern Tanzania, but have previously been little studied. A recent programme of onshore drilling known as the Tanzania Drilling Project has recovered large proportion of this succession for palaeoclimatic and palaeontological study. The sediment is largely a hemipelagic clay with secondary gravity s...
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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: Geology
سال: 2012
ISSN: 0091-7613,1943-2682
DOI: 10.1130/g33388.1