Published September 1993 | Version v1
Journal article Metadata-only

Comparative study of U-Pb and U-Xe isotope systems of metamict zircons under high temperatures and pressures

Creators

  • 1. AN SSSR, Moscow (Russian Federation). Inst. Geokhimii i Analiticheskoj Khimii

Description

A comparative laboratory hydrothermal study of migration properties of Pb and Xe has been conducted for metamict zircon 9-A from the Uros lake metasomatics (Central Karelia). The starting natural samples clearly showed discordant and too young U-Pb age (206Pb/238U-2.1 Ga and 206Pb/238U - 2.3 Ga) as compared to the true age of this zircon-2.5 Ga. Two samples-initial one and mild treated under the extremely mild conditions showed Xes-Xen age 2.34+-0.16 and 2.73+-0.36 Ga close to the true age. Supposition has been made that U-Xe isotope system is presented better under the definite conditions than U-Pb one

Additional details

Additional titles

Original title (Russian)
Сравнительное изучение уран-свинцовой и уран-ксеноновой изотопных систем метамиктных цирконов в условиях повышенных температур и давлений

Publishing Information

Journal Title
Geokhimiya
Journal Issue
no.9
Journal Page Range
p. 1320-1327.
ISSN
0016-7525
CODEN
GEOKAQ

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
26014135
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
COMPARATIVE EVALUATIONS; ERRORS; HIGH PRESSURE; ISOTOPE DATING; LEAD ISOTOPES; METAMICT STATE; SAMPLE PREPARATION; TEMPERATURE RANGE 0400-1000 K; URANIUM ISOTOPES; XENON ISOTOPES; ZIRCON
Descriptors DEC
AGE ESTIMATION; EVALUATION; MINERALS; SILICATE MINERALS; TEMPERATURE RANGE