Геодинамика и тектонофизика, 2018 Ancient primary boninitic melts of the Gorny Altai (65–105 km, 1410–1590 °C) were studied from the composition of melt inclusions in clinopyroxenes.
A. V. Kotlyarov +2 more
doaj +1 more source
The Late- Cretaceous volcanic rocks from Talesh area (western Alborz): chemical variation, crystallization condition, hygrometry and tectonic setting [PDF]
پترولوژی, 2020 In the Talesh area (western Alborz), a thick sedimentary- volcanic association formed in a littoral- deltaic environment during the Late Cretaceous. The extrusives comprise volcanoclastics (tuffs), lava flows (pillow and massive) and basic dykes.
Khadijeh Amani +3 more
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Symplectite and kelyphite formation during decompression of mafic granulite from Gjelsvikfjella, central Dronning Maud Land, Antarctica [PDF]
European Journal of Mineralogy, 2023 Central Dronning Maud Land (cDML) is part of the late Mesoproterozoic Maud Belt in East Antarctica, which was metamorphosed and deformed during the Ediacaran–Cambrian Gondwana assembly. Here we study high-pressure (HP) mafic rocks in Gjelsvikfjella, cDML,
S. Elvevold +5 more
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Brazilian Journal of Geology: In the present study, detailed micro-analytical data (major and trace elements) in minerals from sills of Serra Geral Formation represents the first attempt to evaluate the partition coefficient of Sc, Ti, V, Cr, Co, Ni, Cu, Zn, Rb, Sr, Y, Zr, Nb, Mo ...
Leonardo Cardoso Renner +4 more
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Deep lithospheric dynamics beneath the Sierra Nevada during the Mesozoic and Cenozoic as inferred from xenolith petrology [PDF]
, 2001 Peridotite xenoliths erupted in late Miocene basalts (~8 Ma) in the central Sierra Nevada sample a lithosphere that is vertically stratified in terms of age and thermal history.
Brimhall, George H., Jr. +2 more
core +1 more source
Trace element geochemistry of peridotites from the Izu-Bonin-Mariana Forearc, Leg 125
, 1992 Trace element analyses (first-series transition elements, Ti, Rb, Sr, Zr, Y, Nb, and REE) were carried out on whole rocks and minerals from 10 peridotite samples from both Conical Seamount in the Mariana forearc and Torishima Forearc Seamount in the Izu ...
Ingram, G. +4 more
core +1 more source
Natural evidence for garnet-spinel transition (GST) in the Earth's mantle [PDF]
, 2008 This study based on compiled world-wide garnet peridotite data confirms the GST in high P and T conditions, which was obtained from Al-free experimental system (MgO-Cr~2~O~3~-SiO~2~) by Klemme (2004). A new spinel-phase peridotite zone, garnet peridotite
BenXun Su
core +3 more sources
Partitioning of chromium between garnet and clinopyroxene: first-principle modelling versus metamorphic assemblages [PDF]
European Journal of Mineralogy, 2020 Understanding the geochemical behaviour of trace and minor elements in mineral assemblages is of primary importance to study small- and large-scale geological processes.
S. Figowy +3 more
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Frontiers in Earth Science, 2023 Mantle peridotites from the Mesoproterozoic forearc-type ophiolites in the Eastern Sayan range (Eastern Siberia) provide insights into the nature and formation processes of the supra-subduction mantle.
Marina A. Gornova +8 more
doaj +1 more source
Degassing history of water, sulfur, and carbon in submarine lavas from Kilauea volcano, Hawaii [PDF]
, 1991 Major, minor, and dissolved volatile element concentrations were measured in tholeiitic glasses from the submarine portion (Puna Ridge) of the east rift zone of Kilauea Volcano, Hawaii.
Clague, David A. +2 more
core +1 more source