Premium
Water‐induced shear zone and fabric transition in the lithospheric mantle beneath the Siberian craton
Author(s) -
Gu Xiaotong,
Wang Qin,
Shatsky Vlad
Publication year - 2019
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.13987
Subject(s) - geology , craton , geochemistry , carbonatite , mantle (geology) , seismology , tectonics
Water can be incorporated into lattice defects of normally anhydrous minerals of the upper mantle as hydroxyl. Water can significantly affect physical and chemical properties of mantle minerals as well as deformation mechanisms and rheology of the upper mantle. The Udachnaya kimberlite in the Siberian craton erupted at ~360 Ma and brought up large amounts of fresh peridotite, eclogite and granulite. The eruption of the Siberian Traps occurred at ~250 Ma. Therefore, xenoliths from the Udachnaya pipe provide a window to investigate deformation and water distribution in the lithospheric mantle beneath the Siberian craton prior to the formation of the Siberian Traps.