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Title: Stable isotopic investigation of Porites coral from the Minicoy Island
Authors: Fousiya, A. A.
Chakraborty, S.
Achyuthan, H.
Gandhi, Naveen
Sinha, Nitesh
Datye, Amey
Keywords: Coral porites;Minicoy Island;Stable isotope of O and C;Kinetic fractionation;SST;SSS
Issue Date: Nov-2016
Publisher: NISCAIR-CSIR, India
Abstract: Stable isotope analysis has been performed on a coral collected from the Minicoy Island to investigate its potential as a proxy for southwest monsoonal variability. The X-Ray picture of the porites coral collected revealed about 24 annual bands (1989-2013). The mean annual extension over this period is ca. 7.7mm/year. Stable carbon (δ13C) and oxygen isotope (δ18O) analysis of these bands reveal that the isotopic composition is controlled by kinetic fractionation. There is a drop of δ18O, ca 1‰ relative to the mean value -during -1998 indicating anomalous warming of the sea surface warming.
Page(s): 1465-1470
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.45(11) [November 2016]

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