Compositions of chromite, associated minerals, and parental magmas of podiform chromite deposits: The role of slab contamination of asthenospheric melts in …
Podiform chromitites in the mantle sections of ophiolites belong to either high-Cr
(metallurgical) or high-Al (refractory) varieties. Their highly variable compositions are …
(metallurgical) or high-Al (refractory) varieties. Their highly variable compositions are …
Chromitites in ophiolites: How, where, when, why? Part II. The crystallization of chromitites
A review of previous work relevant to the formation of concentrations of chromite in
peridotites from ophiolitic (sl) sequences highlights some of the key problems in …
peridotites from ophiolitic (sl) sequences highlights some of the key problems in …
The origin and significance of crustal minerals in ophiolitic chromitites and peridotites
PT Robinson, RB Trumbull, A Schmitt, JS Yang… - Gondwana …, 2015 - Elsevier
Various combinations of zircon, quartz, corundum, K-feldspar, plagioclase, apatite,
amphibole, rutile, titanite, almandine garnet, kyanite, andalusite, and coesite have been …
amphibole, rutile, titanite, almandine garnet, kyanite, andalusite, and coesite have been …
The geochemistry of mantle chromitites from the northern part of the Oman ophiolite: inferred parental melt compositions
H Rollinson - Contributions to Mineralogy and Petrology, 2008 - Springer
Chromitites from a single section through the mantle in the Oman ophiolite are of two
different types. Low-cr# chromitites, of MORB affinity are found in the upper part of the …
different types. Low-cr# chromitites, of MORB affinity are found in the upper part of the …
Using trace elements in chromites to constrain the origin of podiform chromitites in the Thetford Mines ophiolite, Québec, Canada
Abstract The Thetford Mines Ophiolite is interpreted as a fragment of a fore-arc oceanic
lithosphere. This complete ophiolitic sequence consists of a thick mantle sequence, a …
lithosphere. This complete ophiolitic sequence consists of a thick mantle sequence, a …
Formation and modification of chromitites in the mantle
S Arai, M Miura - Lithos, 2016 - Elsevier
Podiform chromitites have long supplied us with unrivaled information on various mantle
processes, including the peridotite-magma reaction, deep-seated magmatic evolution, and …
processes, including the peridotite-magma reaction, deep-seated magmatic evolution, and …
High-Cr and high-Al chromitites from the Sagua de Tánamo district, Mayarí-Cristal ophiolitic massif (eastern Cuba): Constraints on their origin from mineralogy and …
Several chromitite bodies of variable sizes are hosted in dunite-harzburgite of the small (<
3km) mining district of Sagua de Tánamo, in the Mayarí-Cristal ophiolitic massif, eastern of …
3km) mining district of Sagua de Tánamo, in the Mayarí-Cristal ophiolitic massif, eastern of …
Origin of podiform chromitite, a new model based on the Luobusa ophiolite, Tibet
F Xiong, J Yang, PT Robinson, X Xu, Z Liu, Y Li, J Li… - Gondwana …, 2015 - Elsevier
Podiform chromitites have been interpreted as the result of melt–rock reaction and related
melt mixing in upper mantle sections of ophiolites. However, the discovery of ultrahigh …
melt mixing in upper mantle sections of ophiolites. However, the discovery of ultrahigh …
Interaction of adakitic melt-peridotite: Implications for the high-Mg# signature of Mesozoic adakitic rocks in the eastern North China Craton
Abundant dunite and harzbugite xenoliths are preserved in Early Cretaceous high-Mg#[63–
67, where Mg#= molar 100× Mg/(Mg+ Fetot)] diorite intrusions from western Shandong in the …
67, where Mg#= molar 100× Mg/(Mg+ Fetot)] diorite intrusions from western Shandong in the …
Fractionation of the noble metals by physical processes
C Ballhaus, C Bockrath… - … to Mineralogy and …, 2006 - Springer
During partial melting in the earth's mantle, the noble metals become fractionated. Os, Ir, Ru,
and Rh tend to remain in the mantle residue whereas Pt, Pd, and Re behave mildly …
and Rh tend to remain in the mantle residue whereas Pt, Pd, and Re behave mildly …