The origin of south siberian radiogeochemically specialized volcanites
| Parent link: | Geochemistry International.— , 1988 Vol. 25, iss. 7.— 1988.— P. 69-79 |
|---|---|
| Other Authors: | , , , , , |
| Summary: | The elevated uranium levels in Devonian acid volcanites are syngenetic. The contrasty volcanic series has a single common Rb-Sr isochron corresponding to 413±13 My and indicates a single magmatic source for the acid and basic effusives. The original Sr ratio in the magma source was 0.7043±0.0006 and corresponds to the range of similar values for island-arc basalts (0.7033-0.7051). It is assumed that the generation of the magmas involved mantle material. В фонде НТБ ТПУ отсутствует |
| Language: | English |
| Published: |
1988
|
| Subjects: | |
| Format: | Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=595795 |