Open AccessLATE CENOZOIC VOLCANISM OF THE UDA RIVER AREA (EASTERN SAYAN, SIBERIA): THE FIRST GEOCHEMICAL AND ISOTOPIC DATA
Author(s) -
Е. I. Demonterova,
Alexei V. Ivanov,
A. B. Perepelov
Publication year - 2017
Publication title -
geodinamika i tektonofizika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.336
H-Index - 8
ISSN - 2078-502X
DOI - 10.5800/gt-2017-8-3-0258
Subject(s) - craton , geology , volcanism , basalt , cenozoic , volcano , geochemistry , lithosphere , earth science , rift , paleontology , tectonics , structural basin
Volcanic eruptions within the Baikal rift of predominantly basaltic composition belong to numerous small-volume eruptions, which took place in Cenozoic in Central Asia. The great majority of these eruptions occurred within the mobile belts in the southern framing of the Siberian craton. Only few of such eruptions have happened within the cratonic margin and these are of particular interest, because volcanic rock composition may provide insights on the composition of the cratonic lithosphere. Until recently, the Uda river area with the size of ~2000 km2 located within the Biryusa block of the Siberian craton (Fig. 1) was a white spot in terms of precise geochemical and isotopic data for basalts. Here we provide such data for the first time