Study of 10Be in the sediments from the Krossfjorden and Kongsfjorden Fjord System, Svalbard

被引：11

作者：

Kumar, Pankaj ^{[1
]}

Pattanaik, J. K. ^{[2
]}

Khare, N. ^{[3
]}

Chopra, S. ^{[1
]}

Yadav, S. ^{[4
]}

Balakrishnan, S. ^{[5
]}

Kanjilal, D. ^{[1
]}

机构：

[1] Interuniv Accelerator ctr, New Delhi 110067, India

[2] Indian Inst Sci Educ & Res Kolkata, Dept Earth Sci, Nadia, WB, India

[3] Prithvi Bhavan, Minist Earth Sci, New Delhi 110003, India

[4] Jawaharlal Nehru Univ, Sch Environm Sci, New Delhi 110067, India

[5] Pondicherry Univ Kalapet, Dept Earth Sci, Pondicherry 605014, India

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2014年 / 302卷 / 02期

关键词：

Be-10; AMS; Fjord system; Krossfjorden; Kongsfjorden; Arctic Ocean; MULTIBEAM BATHYMETRY; FRAM STRAIT; SPITSBERGEN; SEA;

D O I：

10.1007/s10967-014-3315-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The distribution of Be-10, as well as the major elements concentrations and the grain size in surface and core sediment samples, collected from Krossfjorden and Kongsfjorden, Svalbard have been studied for understanding the origin of Be-10 and an estimation of its accumulation rate. The Be-10 concentration in sediments varies between 0.90 x 10(8) and 2.53 x 10(8) atoms g(-1). Our results show that atmospherically produced Be-10 dominates over terrigenous (in situ) sources of Be-10 in the studied samples. The calculated Be-10 accumulation rate varies from 3.1 x 10(6) atoms cm(-2) year(-1) to 8.6 x 10(6) atoms cm(-2) year(-1) which is higher than the accumulation rate observed in the deep sea sediment cores of the Arctic Ocean and the Norwegian Sea. The higher accumulation rate of Be-10 is attributed to the higher influx of glacier melt water into the fjord system.

引用

页码：903 / 909

页数：7

共 36 条

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