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Some aspects of Plio/Pleistocene boundary - A case history from DSDP Site 217, southern Bay of Bengal

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Title Some aspects of Plio/Pleistocene boundary - A case history from DSDP Site 217, southern Bay of Bengal
 
Creator Sarkar, Ashish
Datta, Saugata
Guha, Asit K.
 
Description 158-161
The planktonic foraminiferal change during Pliocene/Pleistocene transition at DSDP Site 217 (Hole A) have been recorded with reference to relative family abundance; relative species abundance and frequency distribution of total planktonic foraminifera, Globorotalia menardii, Pulleniatina obliquiloculata, Sphaeroidinella dehiscens and Orbulina universa. These, along with the temporal variation in coiling direction of Gr. menardii, Globigerinoides sacculifer, Neogloboquadrina dutertrei and Pre. obliquiloculata; morphometric variation of Gr. menardii and O. universa; and changes in diversity indices viz., S, D, (H) over bar and E along the depth justify the placement of Plio/Pleistocene boundary at a depth between 23 and 22 m at Site 217 in the southern Bay of Bengal.
 
Date 2016-10-26T09:21:48Z
2016-10-26T09:21:48Z
1997-06
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/36235
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.26(2) [June 1997]