Isotopic evidences of past upwelling intensity in the Arabian Sea

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doi: 10.1016/j.gloplacha.2003.09.002
Author(s): Naidu, Pothuri Divakar
Author Affiliation(s): Primary:
National Institute of Oceanography, Dona Paula, Goa, India
Volume Title: Global and Planetary Change
Source: Global and Planetary Change, 40(3-4), p.285-293. Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0921-8181
Note: In English. Natl. Inst. Oceanogr., Contrib. No. 3851. 34 refs.; illus., incl. 3 tables, sketch map
Summary: Oxygen and carbon isotopic analyses have been performed on the tests of Globigerina bulloides, Globigerinoides sacculifer, Neogloboquadrina dutertrei and Pulleniatina obliquiloculata to study the Δδ18O and Δδ13C of shallow and deeper depth living planktic foraminifera species. High and low Δδ18Oobl-bul and Δδ13Csac-dut coincides respectively with the low and high flux of G. bulloides (established monsoon upwelling index). The tangible relationships between the flux of G. bulloides and oxygen and carbon isotope differences between the shallow and deeper depth habitat planktic foraminiferal species appear to suggest that Δδ18O and Δδ13C of surface and subsurface living foraminifera can be used as isotope indices of upwelling in the Arabian Sea. Abstract Copyright (2004) Elsevier, B.V.
Year of Publication: 2004
Research Program: ODP Ocean Drilling Program
Key Words: 02 Geochemistry; 24 Surficial Geology, Quaternary Geology; Arabian Sea; Biochemistry; C-13/C-12; Carbon; Cenozoic; Ecology; Foraminifera; Globigerina; Globigerina bulloides; Globigerinacea; Globigerinidae; Globigerinoides; Globigerinoides sacculifer; Habitat; Holocene; Indian Ocean; Invertebrata; Isotope ratios; Isotopes; Leg 117; Living taxa; Marine environment; Modern; Modern analogs; Monsoons; Neogloboquadrina; Neogloboquadrina dutertrei; O-18/O-16; ODP Site 723; Ocean Drilling Program; Oxygen; Paleo-oceanography; Planktonic taxa; Protista; Pulleniatina; Pulleniatina obliquiloculata; Quaternary; Rotaliina; Stable isotopes; Tests; Upwelling
Coordinates: N180304 N180305 E0573634 E0573633
Record ID: 2004018134
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands