Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Structural location, composition, and geodynamic nature of diamond-bearing metamorphic rocks of the Kokchetav subduction-collision zone of the Central Asian Fold Belt (northern Kazakhstan). / Buslov, M. M.; Dobretsov, N. L.; Vovna, G. M. и др.
в: Russian Geology and Geophysics, Том 56, № 1-2, 01.01.2015, стр. 64-80.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Structural location, composition, and geodynamic nature of diamond-bearing metamorphic rocks of the Kokchetav subduction-collision zone of the Central Asian Fold Belt (northern Kazakhstan)
AU - Buslov, M. M.
AU - Dobretsov, N. L.
AU - Vovna, G. M.
AU - Kiselev, V. I.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - We present data on different aspects of geology, mineralogy, petrology, geochemistry, and geochronology of diamond-bearing metamorphic rocks of the Kumdy-Kol terrane, which show the similarity of their protolith to the sedimentary rocks of the Kokchetav microcontinent. The structural location of the studied objects in the accretion-collision zone evidences that the subduction of the Kokchetav microcontinent beneath the Vendian-Cambrian Ishim-Selety island arc is the main mechanism of transport of graphite-bearing terrigenous-carbonate rocks to zones of their transformation into diamond-bearing metamorphic rocks. The sedimentary rocks of the Kokchetav microcontinent, which are enriched in graphite and iron sulfides and carbonates, contain all components necessary for diamond crystallization in deep-seated subduction zone. This is in agreement with the experimental data and the compositions of fluid-melt inclusions in the minerals of diamond-bearing rocks.
AB - We present data on different aspects of geology, mineralogy, petrology, geochemistry, and geochronology of diamond-bearing metamorphic rocks of the Kumdy-Kol terrane, which show the similarity of their protolith to the sedimentary rocks of the Kokchetav microcontinent. The structural location of the studied objects in the accretion-collision zone evidences that the subduction of the Kokchetav microcontinent beneath the Vendian-Cambrian Ishim-Selety island arc is the main mechanism of transport of graphite-bearing terrigenous-carbonate rocks to zones of their transformation into diamond-bearing metamorphic rocks. The sedimentary rocks of the Kokchetav microcontinent, which are enriched in graphite and iron sulfides and carbonates, contain all components necessary for diamond crystallization in deep-seated subduction zone. This is in agreement with the experimental data and the compositions of fluid-melt inclusions in the minerals of diamond-bearing rocks.
KW - Collision
KW - Diamond-bearing calc-silicate rocks
KW - Eclogites
KW - Exhumation
KW - Geochemistry
KW - Geochronology
KW - Kokchetav microcontinent
KW - Olistostrome
KW - Protoliths
KW - Subduction
KW - Tectonic rocks
KW - Thrusts
UR - http://www.scopus.com/inward/record.url?scp=84925310361&partnerID=8YFLogxK
U2 - 10.1016/j.rgg.2015.01.004
DO - 10.1016/j.rgg.2015.01.004
M3 - Article
AN - SCOPUS:84925310361
VL - 56
SP - 64
EP - 80
JO - Russian Geology and Geophysics
JF - Russian Geology and Geophysics
SN - 1068-7971
IS - 1-2
ER -
ID: 25480739