Research output: Contribution to journal › Article › peer-review
Evolution of High-Magnesium Melts During Crystallization of Rocks in Ultramafic Massifs, Siberian Platform. / Simonov, V. A.; Vasiliev, Yu R.; Kotlyarov, A. V. et al.
In: Doklady Earth Sciences, Vol. 487, No. 1, 01.07.2019, p. 819-822.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Evolution of High-Magnesium Melts During Crystallization of Rocks in Ultramafic Massifs, Siberian Platform
AU - Simonov, V. A.
AU - Vasiliev, Yu R.
AU - Kotlyarov, A. V.
AU - Prihodko, V. S.
N1 - Publisher Copyright: © 2019, Pleiades Publishing, Ltd.
PY - 2019/7/1
Y1 - 2019/7/1
N2 - Abstract: The results of study of primary melt inclusions in accessory Cr–spinelides from dunite have revealed features of the chemical compositions of high-magnesium picrite–basalt melts that formed ultramafic massifs of the Siberian Platform. Computational modeling (with the PETROLOG and PLUTON software) using the inclusion compositions allowed determination of the crystallization temperatures of olivines from dunites of the Guli (1520–1420°С), Konder (1545–1430°С), Inagli (1530–1430°С), and Chad (1460–1420°C) massifs. The Cr–spinellids from the same complexes crystallized at Guli (1410–1370°С), Konder (1420–1380°С), Inagli (up to 1430°С), and Chad (1430–1330°С). Overall, computational modeling has revealed two types of trends of high-Mg melt evolution on the Siberian Platform. The first type is characteristic of the Guli Pluton, with the following rock sequence: dunite–pyroxenite–alkalic rocks. The second type occurs in the Konder massif, with a different sequence: dunite–kosvite–pyroxenite and olivine–diopside rocks.
AB - Abstract: The results of study of primary melt inclusions in accessory Cr–spinelides from dunite have revealed features of the chemical compositions of high-magnesium picrite–basalt melts that formed ultramafic massifs of the Siberian Platform. Computational modeling (with the PETROLOG and PLUTON software) using the inclusion compositions allowed determination of the crystallization temperatures of olivines from dunites of the Guli (1520–1420°С), Konder (1545–1430°С), Inagli (1530–1430°С), and Chad (1460–1420°C) massifs. The Cr–spinellids from the same complexes crystallized at Guli (1410–1370°С), Konder (1420–1380°С), Inagli (up to 1430°С), and Chad (1430–1330°С). Overall, computational modeling has revealed two types of trends of high-Mg melt evolution on the Siberian Platform. The first type is characteristic of the Guli Pluton, with the following rock sequence: dunite–pyroxenite–alkalic rocks. The second type occurs in the Konder massif, with a different sequence: dunite–kosvite–pyroxenite and olivine–diopside rocks.
KW - MEIMECHITES
KW - INCLUSIONS
KW - PETROLOGY
KW - MINERALS
KW - MAGMAS
UR - http://www.scopus.com/inward/record.url?scp=85071483888&partnerID=8YFLogxK
U2 - 10.1134/S1028334X19070183
DO - 10.1134/S1028334X19070183
M3 - Article
AN - SCOPUS:85071483888
VL - 487
SP - 819
EP - 822
JO - Doklady Earth Sciences
JF - Doklady Earth Sciences
SN - 1028-334X
IS - 1
ER -
ID: 21468116