Published May 2007 | Version v1
Journal article Metadata-only

High-resolution record of uranium isotopic composition in paleo-Baikal water during last 100 Ky

Creators

  • 1. Limonologicheskij Inst. Sibirskogo Otdeleniya Rossijskoj Akademii Nauk, Irkutsk (Russian Federation)

Description

Isotopic measurements are carried out on sediments of core from mountainside of the underwater Academical mountain ridge dividing Central and South basins of the Lake Baikal. Measurements were carried out using 239Th and 236U isotope mixture, accuracy of the isotope ratio analysis is equal to 0.5%. Calculated uranium isotope ratio in sediments is presented. Observed uranium isotope ratio in water of the Lake depends on the ratio of uranium flows from different sources

Abstract (Russian)

Изотопные измерения выполнены на осадках керна, взятого на склоне подводного Академического хребта, разделяющего центральную и южную котловины озера Байкал. Измерения проводили с использованием смеси изотопов 239Th и 236U, точность определения изотопных отношений - 0.5%. Приведено рассчитанное изотопное отношение урана в осадках. Наблюдаемое в водах озера отношение изотопов урана зависит от соотношения потоков урана, поступающих в озеро из разных источников

Additional details

Additional titles

Original title (Russian)
Высокоразрешающая летопись изотопного состава урана в воде палео-Байкала за последние 100 тыс. лет

Publishing Information

Journal Title
Doklady Akademii Nauk - Rossijskaya Akademiya Nauk
Journal Volume
414
Journal Issue
3
Journal Page Range
p. 381-384
ISSN
0869-5652
CODEN
DAKNEQ

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
39003792
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
BIOLOGICAL EVOLUTION; ISOTOPE RATIO; LAKE BAIKAL; NATURAL OCCURRENCE; RADIATION MONITORING; SEDIMENTARY BASINS; THORIUM 232; URANIUM 234; URANIUM 238
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; DIMENSIONLESS NUMBERS; EVEN-EVEN NUCLEI; EVOLUTION; GEOLOGIC STRUCTURES; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; ISOTOPES; LAKES; MAGNESIUM 28 DECAY RADIOISOTOPES; MONITORING; NEON 24 DECAY RADIOISOTOPES; NUCLEI; RADIOISOTOPES; SPONTANEOUS FISSION RADIOISOTOPES; SURFACE WATERS; THORIUM ISOTOPES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
15 refs., 2 figs.