Published August 2001 | Version v1
Journal article Metadata-only

Uranium-bearing phosphorites in the bottom sediments of Lake Baikal

Creators

  • 1. Limnologicheskij Inst. SO RAN, Irkutsk (Russian Federation)
  • 2. Geologicheskij Inst. SO RAN, Ulan-Udeh (Russian Federation)
  • 3. Ob''edinennyj Inst. Geologii, Geofiziki i Mineralogii SO RAN, Novosibirsk (Russian Federation)

Description

Spatial distribution of uranium and phosphorus in bottom sediment column of the Baikal Lake was studied by the method of (n, f)-autoradiography by 235U fission tracks and activation (n, β)-autoradiography by 32P radioactivity. It was ascertained that in the entire range of depths studied (88-125 cm from sediment surface) distribution of scattered uranium is recorded except the range of 110-111.5 cm, where exceedingly high content of uranium (up to 80-89 g/t) and phosphorus up to 19 wt. % P2O5 was detected. Study of chemical and phase composition of surrounding rocks permitted explanation of the phenomenon observed

Abstract (Russian)

Методами (n, f)-авторадиографии по трекам деления 235U и активационной (n, β)-авторадиографии по радиоактивности 32P изучено пространственное распределение урана и фосфора в колонке донных осадков озера Байкал. Установлено, что на всем исследованном интервале глубин (88-125 см от поверхности осадка) регистрируется распределение рассеянного урана, за исключением интервала 110-111,5 см, где обнаружено исключительно высокое содержание урана (до 80-89 г/т) и фосфора до 19 мас. % Р2О5. На основе изучения химического и фазового состава окружающих пород предложено объяснение наблюдаемого явления

Additional details

Additional titles

Original title (Russian)
Урансодержащие фосфориты в донных осадках озера Байкал

Publishing Information

Journal Title
Doklady Akademii Nauk - Rossijskaya Akademiya Nauk
Journal Volume
379
Journal Issue
4
Journal Page Range
p. 528-533
ISSN
0869-5652
CODEN
DAKNEQ

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
34045671
Subject category
S54: ENVIRONMENTAL SCIENCES; S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Descriptors DEI
AUTORADIOGRAPHY; CHEMICAL COMPOSITION; CONCENTRATION RATIO; DEPTH; LAKE BAIKAL; NEUTRON RADIOGRAPHY; PHASE STUDIES; PHOSPHORITES; PHOSPHORUS COMPOUNDS; SEDIMENTS; SPATIAL DISTRIBUTION; URANIUM COMPOUNDS
Descriptors DEC
ACTINIDE COMPOUNDS; DIMENSIONS; DISTRIBUTION; INDUSTRIAL RADIOGRAPHY; LAKES; MATERIALS TESTING; NONDESTRUCTIVE TESTING; PHOSPHATE ROCKS; ROCKS; SEDIMENTARY ROCKS; SURFACE WATERS; TESTING

Optional Information

Notes
15 refs.; 1 tab.; 3 figs.