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Planktonic percentage of foraminiferal fauna in surface sediments of the Arabian sea (Indian Ocean) and a regional model for paleodepth determination

DRS at CSIR-National Institute of Oceanography

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Title Planktonic percentage of foraminiferal fauna in surface sediments of the Arabian sea (Indian Ocean) and a regional model for paleodepth determination
 
Creator Nigam, R.
Henriques, P.J.
 
Description The percentage of planktonic specimens in foraminiferal assemblages were determined in 126 surface sediment samples (depth range 13 to 1050 m) from the Arabian Sea along the western continental margin of India. The results obtained are in agreement with previous studies in other areas that planktonic percentage increased with depth. The resultant pattern is compared with results from the Atlantic margin of the northeastern United States, Gulf of Mexico, Timor Sea and Red Sea. Comparisons reveal that in spite of diversity between various areas, the over-all pattern indicate a positive correlation between planktonic percentage and depth. Based on the above relationship, a regional model has been constructed for the western continental margin of India in the Arabian Sea region to determine paleodepth from the planktonic percentage of fossil foraminiferal fauna. Regional differences in salinity patterns could be one of the main reasons for deviation of the regional model for the Arabian Sea with other regional models from Pacific and Atlantic regions and also with the Global model.
 
Date 2009-05-08T11:56:13Z
2009-05-08T11:56:13Z
1992
 
Type Journal Article
 
Identifier Palaeogeography, Palaeoclimatology, Palaeoecology, Vol.91; 89-98p.
http://drs.nio.org/drs/handle/2264/3022
 
Language en
 
Rights Copyright [1992]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Elsevier