Published 1986
| Version v1
Journal article
First Rb-Sr data for ongorhyolites from Mongolia
Creators
- 1. AN SSSR, Irkutsk. Inst. Geokhimii
Description
A rubidium-strontium isotope dating of acid volcanites from the South Mongolia is carried out. Samples of effusions and their glasses are studied. Ages from 107 to 125 mln yrs, pointing to the fact that acid volcanites from the South Mongolia have been formed in the early Cretaceous period. It agrees satisfactorily with potassium - argon dating (115-118 mln yrs.) The first ratio of 87Sr/86Sr is calculated: 0.7084-07237 is effusions and 0.7185 - in glasses, that points to the crustal source of strontium. At the same time the pallial source of the material of Cretaceous basalts with 87Sr/86Sr=0.7044-0.7059 is obvious
Additional details
Additional titles
- Original title (Russian)
- Первые Рб-Ср-даты для онгориолитов Монголии
Publishing Information
- Journal Title
- Dokl. Akad. Nauk SSSR
- Journal Volume
- 286
- Journal Issue
- 1
- Series
- Dokl. Akad. Nauk SSSR.
- Journal Page Range
- 168-171
- ISSN
- 0002-3264
- CODEN
- DANKA
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- USSR
- INIS RN
- 18004753
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ASIA; IGNEOUS ROCKS; ISOTOPE DATING; ISOTOPE RATIO; PETROGENESIS; RUBIDIUM 87; STRONTIUM 86; STRONTIUM 87
- Descriptors DEC
- AGE ESTIMATION; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; NUCLEI; ODD-EVEN NUCLEI; RADIOISOTOPES; ROCKS; RUBIDIUM ISOTOPES; STABLE ISOTOPES; STRONTIUM ISOTOPES; YEARS LIVING RADIOISOTOPES