To understand the origin of the Siberian Traps it is necessary to know the evolution of magmatism in space and time inside the Siberian Platform. It was suggested that volcanic rocks were formed in three stages: rift (OIB), intermediate and trap (WPB). It was studied rocks of the Tuklonsky, Nadezhdinsky and Morongovsky suits in the western part of the Norilsk area and found that they have no intermediate geochemical characteristics (major components and rare elements, especially La/Sm ratios) between OIB and WPB. Therefore, there are only two main stages in the magmatism evolution as the actual trapping stage began from Tuklonsky time.
Siberian Traps in the Norilsk Area: A Corrected Scheme of Magmatism Evolution
N. Krivolutskaya,B. Gongalsky,A. Dolgal,N. Svirskaya,T. Vekshina
Published 2016 in IOP Conference Series: Earth and Environmental Science
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- Publication year
2016
- Venue
IOP Conference Series: Earth and Environmental Science
- Publication date
2016-10-01
- Fields of study
Physics, Geology
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