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Pleistocene paleoclimatic zonation in northern Indian ocean as revealed from <i>Globorotalia menardii</i> abundance

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Title Pleistocene paleoclimatic zonation in northern Indian ocean as revealed from Globorotalia menardii abundance
 
Creator Sarkar, Ashish
Guha, Asit K
 
Description 84-87
The fluctuations in frequency of occurrence of Globorotalia menardii a commonly occurring planktonic foraminifera at DSDP Sites 219, 220 and 241 have been correlated with the Pleistocene paleoclimatic (Ericson) zonation. Abundance of Gr. menardii has been found to be high to moderate during R, T, V, X and Z (all interglacial, interstadial and post-glacial) zones while it was remarkably low during S, U, W and Y (all glacial) stages. Varying thicknesses of the above paleoclimatic zones at these three sites are due to differences in sediment accumulation rates. A comparison of Gr, menardii and total planktonic foraminiferal abundance at these sites show very good correspondence, the correlation coefficients of which are highly significant, indicating Ericson paleoclimatic zones can be precisely delineated with the help of total planktonic foraminifera also in tropical region.
 
Date 2016-10-26T04:39:55Z
2016-10-26T04:39:55Z
1997-03
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/36152
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.26(1) [March 1997]