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)

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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. et al.

In: Russian Geology and Geophysics, Vol. 56, No. 1-2, 01.01.2015, p. 64-80.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{d5358d54854b40feaf740130e53ed131,

title = "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)",

abstract = "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.",

keywords = "Collision, Diamond-bearing calc-silicate rocks, Eclogites, Exhumation, Geochemistry, Geochronology, Kokchetav microcontinent, Olistostrome, Protoliths, Subduction, Tectonic rocks, Thrusts",

author = "Buslov, {M. M.} and Dobretsov, {N. L.} and Vovna, {G. M.} and Kiselev, {V. I.}",

year = "2015",

month = jan,

day = "1",

doi = "10.1016/j.rgg.2015.01.004",

language = "English",

volume = "56",

pages = "64--80",

journal = "Russian Geology and Geophysics",

issn = "1068-7971",

publisher = "Elsevier Science B.V.",

number = "1-2",

}

RIS

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