Результаты исследований: Научные публикации в периодических изданиях › статья по материалам конференции › Рецензирование
The Khairkhan dunite-troctolite-gabbro massif (Lake Zone of the Western Mongolia) - Example of syncollision Middle Cambrian mafic intrusion. / Izokh, A. E.; Vishnevskiy, A. V.; Shelepaev, R. A. и др.
в: IOP Conference Series: Earth and Environmental Science, Том 319, № 1, 012009, 19.09.2019.Результаты исследований: Научные публикации в периодических изданиях › статья по материалам конференции › Рецензирование
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TY - JOUR
T1 - The Khairkhan dunite-troctolite-gabbro massif (Lake Zone of the Western Mongolia) - Example of syncollision Middle Cambrian mafic intrusion
AU - Izokh, A. E.
AU - Vishnevskiy, A. V.
AU - Shelepaev, R. A.
AU - Polyakov, G. V.
AU - Gertner, I. F.
AU - Vrublevskii, V. V.
AU - Kurumshieva, K. R.
PY - 2019/9/19
Y1 - 2019/9/19
N2 - Geological, mineralogical, petrochemical and geochronological data are considered for the Khairkhan dunite-troctolite-gabbro massif in the Lake zone of Western Mongolia. The massif intrude the Lower Cambrian molasse stratum and intruded by the Middle Cambrian diorite-plagiogranite bodies (507 Ma). Mineralogical, petrographic and geochemical data show typical suprasubduction characteristics: high An component of plagioclases with increased iron content of olivines, high whole-rock alumina content, low contents of titanium and alkalis, Ta, Nb, Zr and Hf minima. The layered series is characterized by a layers of orbicular gabbros, which can be considered as gabbro-gabbro mingling. At the same time, high-temperature viscous-plastic deformations are characteristic of the layered series, which cover the entire volume of the intrusion. These observations, together with geological and geochronological data related to the melting of the suprasubduction mantle in the Cambrian-Ordovician time, allow treating the Khairkhan massif as an example of syncollisional stratified gabbroids.
AB - Geological, mineralogical, petrochemical and geochronological data are considered for the Khairkhan dunite-troctolite-gabbro massif in the Lake zone of Western Mongolia. The massif intrude the Lower Cambrian molasse stratum and intruded by the Middle Cambrian diorite-plagiogranite bodies (507 Ma). Mineralogical, petrographic and geochemical data show typical suprasubduction characteristics: high An component of plagioclases with increased iron content of olivines, high whole-rock alumina content, low contents of titanium and alkalis, Ta, Nb, Zr and Hf minima. The layered series is characterized by a layers of orbicular gabbros, which can be considered as gabbro-gabbro mingling. At the same time, high-temperature viscous-plastic deformations are characteristic of the layered series, which cover the entire volume of the intrusion. These observations, together with geological and geochronological data related to the melting of the suprasubduction mantle in the Cambrian-Ordovician time, allow treating the Khairkhan massif as an example of syncollisional stratified gabbroids.
KW - PALEOZOIC GRANITOID BATHOLITHS
KW - GEODYNAMIC ENVIRONMENTS
KW - AGE
KW - MAGMATISM
UR - http://www.scopus.com/inward/record.url?scp=85073068398&partnerID=8YFLogxK
U2 - 10.1088/1755-1315/319/1/012009
DO - 10.1088/1755-1315/319/1/012009
M3 - Conference article
AN - SCOPUS:85073068398
VL - 319
JO - IOP Conference Series: Earth and Environmental Science
JF - IOP Conference Series: Earth and Environmental Science
SN - 1755-1307
IS - 1
M1 - 012009
T2 - 10th All Russian Petrographic Conference with International Participationon Petrology of Magnetic and Metamorphic Complexes
Y2 - 27 November 2018 through 28 November 2018
ER -
ID: 21848050