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Pteropod occurrence in relation to aragonite compensation depth—An example from Carlsberg Ridge(Indian Ocean)

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Title Pteropod occurrence in relation to aragonite compensation depth—An example from Carlsberg Ridge(Indian Ocean)
 
Creator Bhattacharjee, Debajyoti
Mallik, Tapas Kumar
 
Description 305-309
Morphological
characteristics of twenty pteropod species were examined to understand the
ecological significance of pteropods of the Carlsberg Ridge in Indian Ocean. Faunal assemblage indicates a warm water
tropical environment which is associated with well-known centre of winnowing
action. The characteristic pteropod assemblage such as Cuvierina columnella,
Cavolinia inflexa, Diacria trispinosa, Cavlinia
globulosa, Limacina inflata and Creseis virgula suggests
a closer tie with the upwelling off Somali coast. The nature of aragonite compensation
depth (ACD) and its variation due to the change

of oceanographic condition was
reflected by the pteropod. These pteropods occur below the expected bathymetric
level of aragonite compensation depth as per the available literature.This
study reveals the possible hydrothermal activity in the area which is also
supported by the brown to dark brown colouration of the biota within the
pelagic sediments.
 
Date 2014-01-13T05:12:09Z
2014-01-13T05:12:09Z
2000-12
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/25495
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.29(4) [December 2000]