Dating of deep-water sediments of Lake Baikal from the ratios of thorium and uranium isotopes in various fractions of their authigenic part

Authors
Sandimirov, IV Kosov, AA Vladimirova, TA
Citation
Iv. Sandimirov et al., Dating of deep-water sediments of Lake Baikal from the ratios of thorium and uranium isotopes in various fractions of their authigenic part, GEOL GEOFIZ, 42(1-2), 2001, pp. 194-205
Citations number
41
Categorie Soggetti
Earth Sciences
Journal title
GEOLOGIYA I GEOFIZIKA
ISSN journal
00167886 → ACNP
Volume
42
Issue
1-2
Year of publication
2001
Pages
194 - 205
Database
ISI
SICI code
0016-7886(2001)42:1-2<194:DODSOL>2.0.ZU;2-0
Abstract
We propose a method for dating Baikal deep-water sediments from the ratios of radioactive isotopes of Th and U in various fractions of the authigenic pan of the sediments. We have determined the Th-U age of six horizons of th e borehole BDP-96-2 and the average parameters of gravitational consolidati on of the sediments, The extrapolated Th-U ages show a good correlation wit h paleomagnetic data throughout the core of BDP-95-2.