Abstract
Ultramafic and mafic lithologies, attributed to the orogenic terranes and formed under ultrahigh-pressure (UHP) and high-pressure (HP) conditions, have been intensively studied for the last decades. It is mainly related to a particular significance of these rocks for geodynamics, since they contain an important information on the fluid-rock interactions and element redistribution in the subduction-collision zones and could shed the light on the tectonic evolution of the studied region.
Highlights
Ultramafic and mafic lithologies, attributed to the orogenic terranes and formed under ultrahigh-pressure (UHP) and high-pressure (HP) conditions, have been intensively studied for the last decades
Within the western part of the Central Asian Orogenic Belt ultramafic-mafic (U)HP lithologies are attributed to Kokchetav massif in Northern Kazakhstan [Katayama et al, 2001], Makbal complex [Meyer et al, 2013], Aktyuz block [Orozbaev et al, 2010] in Northern Tien Shan, Atbashi and Chatkal complexes in Southern
The only case of garnet and spinel peridotites finding in the west CAOB is referred to Kokchetav massif, where UHP garnet peridotites are interpreted to have been formed after shallow metasomatized basalts, imbedded into the upper parts of continental crust prior subduction and correspond to the “crustal” type of UHP ultramafics (e.g. [Reverdatto et al, 2008])
Summary
Ultramafic and mafic lithologies, attributed to the orogenic terranes and formed under ultrahigh-pressure (UHP) and high-pressure (HP) conditions, have been intensively studied for the last decades. For citation: Pilitsyna A.V., Tretyakov A.A., Alifirova T.A., Degtyarev K.E., 2017.
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