Abstract
The distribution of 10Be, 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 10Be and an estimation of its accumulation rate. The 10Be concentration in sediments varies between 0.90 × 108 and 2.53 × 108 atoms g−1. Our results show that atmospherically produced 10Be dominates over terrigenous (in situ) sources of 10Be in the studied samples. The calculated 10Be accumulation rate varies from 3.1 × 106 atoms cm−2 year−1 to 8.6 × 106 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 10Be is attributed to the higher influx of glacier melt water into the fjord system.
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Authors are thankful to the handling editor and the anonymous reviewers for their critical comments and help in improving the quality of MS. PK acknowledges Dr. Pramod Singh, Dr. Jitendra Das and Soumya Prakash Dhal (Pondicherry University) for their help in particle size and geochemical analysis of the samples. Supports received during the experiments from the Pelletron crew members at IUAC are also gratefully acknowledged.
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Kumar, P., Pattanaik, J.K., Khare, N. et al. Study of 10Be in the sediments from the Krossfjorden and Kongsfjorden Fjord System, Svalbard. J Radioanal Nucl Chem 302, 903–909 (2014). https://doi.org/10.1007/s10967-014-3315-7
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DOI: https://doi.org/10.1007/s10967-014-3315-7