NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.36 [2007] >
IJMS Vol.36(4) [December 2007] >


Title: Neogene oceanographic and climatic changes in the northern Indian Ocean: Evidence from Radiolaria
Authors: Sharma, V.
Devi, L. Bhagyapati
Keywords: Radiolaria
Indian Ocean
Neogene
Paleoceanography
Paleoclimate
Climatic changes
Oceanographic changes
Biochronology
Circulation
Upwelling
Paleotemperature
Monsoonal changes
Issue Date: Dec-2007
Publisher: CSIR
Abstract: Neogene is one of the important periods in the earth’s history in view of significant changes that took place during the period in climatic and oceanographic conditions. Radiolarians from well preserved cores, uplifted marine sequences, and surface sediments from the northern Indian Ocean provided opportunity to reconstruct the Neogene oceanographic and climatic events. Studies based on radiolarians from land-based sections revealed episodes of cooling and warming in the late Early Miocene to Middle Miocene. Investigations of radiolarian upwelling fauna in the cores from the western Arabian sea demonstrated strengthening and weakening of upwelling during late Middle Miocene to Recent. Examination of radiolarians from surface sediments suggested presence of Antarctic Bottom water in the Mozambique and Madagascar basins of the western Indian Ocean. Certain radiolarian species are found useful in understanding paleomonsoonal changes and have been used to interpret such changes.
Page(s): 361-368
ISSN: 0379-5136
Source:IJMS Vol.36(4) [December 2007]

Files in This Item:

File Description SizeFormat
IJMS 36(4) (2007) 361-368.pdf523.31 kBAdobe PDFView/Open
 Current Page Visits: 927 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 592987 since 06-Feb-2009  Last updated on 18-Sep-2014Webmaster: nopr@niscair.res.in