The study of distribution and forms of uranium occurrences in Lake Baikal sediments by the SSNTD method

摘要

Sediments of Lake Baikal drill cores VER-96-1 St8 TW2 (53 degrees 32'15"E; 107 degrees 56'25"N), (interval 181.8-235 cm from the sediment surface) were studied by means of SSNTD with the aim of defining uranium occurrence in the sediments and the uranium concentration. The neutron-fission ((n, f)-autoradiographic) method allowed a detailed study of uranium distribution of these Lake Baikal sediments within the Academicheskiy Ridge. Layered accumulations of uranium-bearing grained phosphorite, uranium-bearing particles of organic material, and abnormal uranium concentration in diatomite of unknown origin were discovered. (c) 2005 Elsevier Ltd. All rights reserved.