Authors:
N. Khare Ministry of Earth Sciences, Block # 12, CGO Complex, Lodhi Road, New Delhi, 110 003 India

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P. Govil National Centre for Antarctic and Ocean Research, Headland Sada, Vasco-da-Gama, 403 804 Goa, India

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Pankaj Kumar Inter-University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi, 110067 India

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A. Mazumder National Centre for Antarctic and Ocean Research, Headland Sada, Vasco-da-Gama, 403 804 Goa, India

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S. Chopra Inter-University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi, 110067 India

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J. Pattanaik

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S. Balakrishnan Department of Earth Science, Pondicherry University, Puducherry, 605 014 India

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G. Roonwal Inter-University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi, 110067 India

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Abstract  

The variations in the concentration of 10Be in the core (SK 200/23) from south western Indian Ocean apparently illuminate past levels of 10Be. The level in the core where lower concentration of 10Be (1.01 × 109 atoms/g) is encountered during the Late Holocene is not at tandem with the Late Holocene southern hemisphere temperature variation. The results further suggest that during last glacial maxima (LGM) the 10Be concentration is higher (2.67 × 109 atoms/g) than the Late Holocene values. The present results, though preliminary, show that local bottom topography seems to have influenced the 10Be concentration at core site. Many studies from different geographic regions need to be undertaken before we finally consider 10Be as yet another strong proxy for palaeoclimatic reconstructions.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)