Sediment deposition rates on the continental margins of the eastern Arabian Sea using 210Pb, 137Cs and 14C

B. L.K. Somayajulu; R. Bhushan; Ashish Sarkar; G. S. Burr; A. J.T. Jull

doi:10.1016/S0048-9697(99)00155-2

Sediment deposition rates on the continental margins of the eastern Arabian Sea using ²¹⁰Pb, ¹³⁷Cs and ¹⁴C

B. L.K. Somayajulu
, R. Bhushan
, Ashish Sarkar
, G. S. Burr
, A. J.T. Jull

Research output: Contribution to journal › Article › peer-review

56 Scopus citations

Abstract

Eight gravity cores from the active eastern continental margins of the Arabian Sea were dated using ²¹⁰Pb(xs), ¹³⁷Cs and ¹⁴C. The short-term (≤ 100 years) sedimentation rates range from 0.06 to 0.66 cm/year where as the long-term (≥ 1000 years) ones using AMS ¹⁴C on planktonic foraminifera varied from 0.004 to 0.13 cm/year. For long-term chronology (≤ 50000 years) AMS dating of well-cleaned planktonic foraminifera is most suited.

Original language	English (US)
Pages (from-to)	429-439
Number of pages	11
Journal	Science of the Total Environment
Volume	237-238
DOIs	https://doi.org/10.1016/S0048-9697(99)00155-2
State	Published - Sep 30 1999

Keywords

AMS
Arabian Sea
Continental margins
Dating
Radioisotope
Sedimentation rate

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution

Access to Document

10.1016/S0048-9697(99)00155-2

Cite this

@article{3ef67944ea6849d6872b7ae8f8b40d92,

title = "Sediment deposition rates on the continental margins of the eastern Arabian Sea using 210Pb, 137Cs and 14C",

abstract = "Eight gravity cores from the active eastern continental margins of the Arabian Sea were dated using 210Pb(xs), 137Cs and 14C. The short-term (≤ 100 years) sedimentation rates range from 0.06 to 0.66 cm/year where as the long-term (≥ 1000 years) ones using AMS 14C on planktonic foraminifera varied from 0.004 to 0.13 cm/year. For long-term chronology (≤ 50000 years) AMS dating of well-cleaned planktonic foraminifera is most suited.",

keywords = "AMS, Arabian Sea, Continental margins, Dating, Radioisotope, Sedimentation rate",

author = "Somayajulu, \{B. L.K.\} and R. Bhushan and Ashish Sarkar and Burr, \{G. S.\} and Jull, \{A. J.T.\}",

note = "Funding Information: We thank J.P. Bhavsar, S. Chakraborty, A.R.S. Pandian, J.S. Ray, S.K. Singh of PRL, P.R. Leopold of CMFRI, Cochin, the DOD fishing hands and the Captain and crew of FORV Sagar Sampada during cruises SS No. 117 and SS No.132 for help in core collection. Mr V. Ravindranathan, Director DOD Cell, Cochin and his associates were of great help in making necessary arrangements. We thank Dr JoLynn Carroll for papers and the computer program to use the SIT model, L.R. Hewitt and D. Biddulph for help in AMS operations, Dr D.N. Yadav for help in radiochemistry and α-assay of some samples from core 2502 and Prof. S. Krishnaswami for discussion. This work was funded in part by the Department of Space and by Department of Ocean Development (through JGOFS India program) and by NSF grant EAR95-08413. BLKS is thankful to CSIR for the Emeritus Scientistship. We are thankful to the anonymous reviewer for important suggestions, which served to improve the manuscript.",

year = "1999",

month = sep,

day = "30",

doi = "10.1016/S0048-9697(99)00155-2",

language = "English (US)",

volume = "237-238",

pages = "429--439",

journal = "Science of the Total Environment",

issn = "0048-9697",

publisher = "Elsevier B.V.",

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T1 - Sediment deposition rates on the continental margins of the eastern Arabian Sea using 210Pb, 137Cs and 14C

AU - Somayajulu, B. L.K.

AU - Bhushan, R.

AU - Sarkar, Ashish

AU - Burr, G. S.

AU - Jull, A. J.T.

N1 - Funding Information: We thank J.P. Bhavsar, S. Chakraborty, A.R.S. Pandian, J.S. Ray, S.K. Singh of PRL, P.R. Leopold of CMFRI, Cochin, the DOD fishing hands and the Captain and crew of FORV Sagar Sampada during cruises SS No. 117 and SS No.132 for help in core collection. Mr V. Ravindranathan, Director DOD Cell, Cochin and his associates were of great help in making necessary arrangements. We thank Dr JoLynn Carroll for papers and the computer program to use the SIT model, L.R. Hewitt and D. Biddulph for help in AMS operations, Dr D.N. Yadav for help in radiochemistry and α-assay of some samples from core 2502 and Prof. S. Krishnaswami for discussion. This work was funded in part by the Department of Space and by Department of Ocean Development (through JGOFS India program) and by NSF grant EAR95-08413. BLKS is thankful to CSIR for the Emeritus Scientistship. We are thankful to the anonymous reviewer for important suggestions, which served to improve the manuscript.

PY - 1999/9/30

Y1 - 1999/9/30

N2 - Eight gravity cores from the active eastern continental margins of the Arabian Sea were dated using 210Pb(xs), 137Cs and 14C. The short-term (≤ 100 years) sedimentation rates range from 0.06 to 0.66 cm/year where as the long-term (≥ 1000 years) ones using AMS 14C on planktonic foraminifera varied from 0.004 to 0.13 cm/year. For long-term chronology (≤ 50000 years) AMS dating of well-cleaned planktonic foraminifera is most suited.

AB - Eight gravity cores from the active eastern continental margins of the Arabian Sea were dated using 210Pb(xs), 137Cs and 14C. The short-term (≤ 100 years) sedimentation rates range from 0.06 to 0.66 cm/year where as the long-term (≥ 1000 years) ones using AMS 14C on planktonic foraminifera varied from 0.004 to 0.13 cm/year. For long-term chronology (≤ 50000 years) AMS dating of well-cleaned planktonic foraminifera is most suited.

KW - AMS

KW - Arabian Sea

KW - Continental margins

KW - Dating

KW - Radioisotope

KW - Sedimentation rate

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