Chromian spinel geochemistry as a petrogenetic indicator in the chromitites and peridotites of the Bajgan Complex, Western Makran [PDF]
پترولوژیIntroductionEconomic chromite deposits are very common in ophiolite belts. These deposits usually occur in the uppermost horizons of the ophiolite mantle sequence or within the ultramafic cumulitic rocks at the base of the crustal sequence (González ...
Leila Vahedi +2 more
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Evolution history of north Anarak, Central Iran ophiolitic olistoliths using petrographical and mineral chemistry studies [PDF]
پترولوژی, 2021 Anarak ophiolite, belonging to Paleozoic, formed along with the tectonic evolution of the Paleo- Tethys Ocean, consisting of meta- peridotites of mantle and crust, cumulate rocks, massive gabbros, pillow lava, basic and ultrabasic dikes, rodingite and ...
Elahe Zarei +2 more
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Fluid/mineral interaction in UHP garnet peridotite [PDF]
, 2009 We present two case studies of metasomatised garnet peridotite from the Sulu (Zhimafang) and of garnet orthopyroxenite from the Dabie Shan (Maowu) ultrahigh-pressure terranes (Eastern China).
J. Hermann +7 more
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Fluid-rock interaction in eclogite-facies meta-peridotite (Erro-Tobbio Unit, Ligurian Alps) [PDF]
, 2023 openExhumed blueschist/eclogite-facies serpentinites, altered oceanic rocks and sediments can provide information on dehydration reactions, fluid activity and, possibly, seismicity occurring during subduction of oceanic lithosphere.
CACCIARI, SERENA
core
Nickel–cobalt contents of olivine record origins of mantle peridotite and related rocks
, 2016 Olivine is distinguished from all other minerals in providing a remarkable chemical narrative about magmatic processes that occurred in Earth’s crust, mantle, and core over the entire age of Earth history.
C. Herzberg, C. Vidito, N. Starkey
semanticscholar +1 more source
Compositional trends of Icelandic basalts: Implications for short–length scale lithological heterogeneity in mantle plumes [PDF]
Lithological variations in the mantle source regions under mid-ocean ridges and ocean islands have been proposed to play a key role in controlling melt generation and basalt composition.
Maclennan, John, Shorttle, Oliver
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Geochemistry, Geophysics, Geosystems, 2014 Both silicate melts and aqueous fluids are thought to play critical roles in the chemical differentiation of the Earth's crust and mantle. Yet their relative effects are poorly constrained. We have addressed this issue by measuring partition coefficients
John Adam +4 more
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Anais da Academia Brasileira de Ciências, 2014 This paper presents gravimetric and morphologic analyses based on the satellite-derived data set of EGM2008 and TOPEX for the area of the oceanic mantle massif of the Saint Peter and Saint Paul peridotite ridge, Equatorial Atlantic Ocean.
KENJI F. MOTOKI +2 more
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Olivine versus peridotite during serpentinization: Gas formation
, 2015 The dependence of starting materials and their initial grain sizes on the formation of gases (H-2, CH4, C2H6 and C3H8) during serpentinization was investigated by conducting hydrothermal experiments at 311A degrees C and 3 kbar on olivine and peridotite ...
Sun WeiDong +4 more
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Ultramafic xenoliths from the Bearpaw Mountains, Montana, USA: evidence for multiple metasomatic events in the lithospheric mantle beneath the Wyoming craton [PDF]
, 2004 Ultramafic xenoliths in Eocene minettes of the Bearpaw Mountains volcanic field (Montana, USA), derived from the lower lithosphere of the Wyoming craton, can be divided based on textural criteria into tectonite and cumulate groups. The tectonites consist
James, D. +8 more
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