Kaiho, Kunio (1998): Global climatic forcing of deep-sea benthic foraminiferal test size during the past 120 m.y.

Leg/Site/Hole:
Identifier:
1998-037024
georefid
10.1130/0091-7613(1998)026<0491:GCFODS>2.3.CO;2
doi
Creator:
Kaiho, Kunio
Tohoku University, Institute of Geology and Paleontology, Sendai, Japan
author
Identification:
Global climatic forcing of deep-sea benthic foraminiferal test size during the past 120 m.y.
1998
Geology (Boulder)
Geological Society of America (GSA), Boulder, CO, United States
26
6
491-494
Stratigraphic distribution of the maximum diameter of the largest deep-water (>1500 m water depths) calcareous trochospiral benthic foraminiferal tests in samples representing the past 120 m.y. shows that average values of the maximum diameter have doubled since Early Cretaceous time. Fluctuations in test size show six minima and six maxima. It is significant that the fluctuations correspond to changes in global climate and in deep-water dissolved oxygen conditions. This latter synchronism indicates that deep-sea foraminiferal test size was likely controlled by fluctuations in the level of dissolved oxygen or related factors in the deep ocean caused by global climatic changes.
English
Serial
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Stratigraphy; benthic taxa; biostratigraphy; Cenozoic; climate change; cores; correlation; Cretaceous; deep-sea environment; dissolved materials; Foraminifera; Invertebrata; isotope ratios; isotopes; marine environment; Mesozoic; microfossils; O-18/O-16; oxygen; paleoclimatology; paleoecology; phylogeny; Protista; size; size distribution; stable isotopes; tests;
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