Results 11 to 20 of about 2,269 (206)

Post-magmatic processes recorded in bimodal chromitites of the East Chalkidiki meta-ultramafic bodies, Gomati and Nea Roda, Northern Greece

open access: yesFrontiers in Earth Science, 2022
The meta-ultramafic bodies of Gomati and Nea Roda are situated in the Serbomacedonian Massif. They demonstrate bimodal character in terms of chromitite chemistry with both Cr- and Al-rich chromitites outcropping in proximity, with no obvious tectonic ...
Alkiviadis Sideridis   +7 more
doaj   +1 more source

Major, trace and platinum-group element geochemistry of harzburgites and chromitites from Fuchuan, China, and its geological significance

open access: yesOpen Geosciences, 2022
The Fuchuan peridotites have dual features of mid-ocean ridge basalt and supra-subducted zone peridotites and have been experienced high degrees of partial melting; chondrite-normalized “U”-shaped rare earth element (REE) patterns of Fuchuan harzburgites
Liu Ting, Wu Jun, Tan Qi, Bai Lijuan
doaj   +1 more source

GARNET MINERALIZATION ASSOCIATED WITH LATE MAGMATIC AND HYDROTHERMAL-METASOMATIC PROCESSES IN DUNITES OF THE NIZHNY TAGIL CLINOPYROXENITE-DUNITE MASSIF, CENTRAL URALS [PDF]

open access: yesМинералогия, 2022
The miarolitic dunites of the Nizhny Tagil massif (Central Urals), the structure of miaroles and the principles of co-occurrence of minerals are studied.
S.Yu. Stepanov   +5 more
doaj   +1 more source

the origin of Abgarm ultramafic complex (South of Kerman province) [PDF]

open access: yesپترولوژی, 2020
Abgarm ultramafic complex in the south of Kerman province is a part of Esfandagheh- Haji Abad ophiolite which is located in the northern edge of Zagros thrust. The complex contains harzburgites, lherzolites, dunites, and chromitites.
Raziyeh Alipour   +2 more
doaj   +1 more source

Genetic Link between Podiform Chromitites in the Mantle and Stratiform Chromitites in the Crust: A Hypothesis [PDF]

open access: yesMinerals, 2021
No genetic link between the two main types of chromitite, stratiform and podiform chromitites, has ever been discussed. These two types of chromitite have very different geological contexts; the stratiform one is a member of layered intrusions, representing fossil magma chambers, in the crust, and the podiform one forms pod-like bodies, representing ...
openaire   +1 more source

Chromite Composition and Platinum-Group Element Distribution in the Proterozoic Chimalpahad Anorthosite Complex, South India: Implications for Magmatic Processes and Discrimination of Tectonic Setting

open access: yesLithosphere, 2022
The Proterozoic Chimalpahad Anorthosite Complex (CAC) is a deformed and dismembered complex in South India comprising of anorthosite-leucogabbro-gabbro-ultramafic rocks.
Tushar Meshram   +5 more
doaj   +1 more source

The Changing Character of Carbon in Fluids with Pressure

open access: yesGeophysical Monograph Series, Page 259-269., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Dimitri Sverjensky   +2 more
wiley  

+1 more source

Masirah – The other Oman ophiolite: A better analogue for mid-ocean ridge processes? [PDF]

open access: yes, 2017
Oman has two ophiolites – the better known late Cretaceous northern Oman (or Semail) ophiolite and the lesser known and smaller, Jurassic Masirah ophiolite located on the eastern coast of the country adjacent to the Indian Ocean.
Anonymous   +57 more
core   +9 more sources

Diamond and Other Exotic Mineral-Bearing Ophiolites on the Globe: A Key to Understand the Discovery of New Minerals and Formation of Ophiolitic Podiform Chromitite

open access: yesCrystals, 2021
Ophiolite-hosted diamond from peridotites and podiform chromitites significantly differs from those of kimberlitic diamond and ultra-high pressure (UHP) metamorphic diamond in terms of occurrence, mineral inclusion, as well as carbon and nitrogen ...
Fei Liu   +3 more
doaj   +1 more source

PLATINUM METAL MINERALIZATION OF THE SOUTH URALS MAGMATIC COMPLEXES: GEOLOGICAL AND GEODYNAMIC CHARACTERISTICS OF FORMATIONS, PROBLEMS OF THEIR GENESIS, AND PROSPECTS

open access: yesГеодинамика и тектонофизика, 2021
In the South Urals, we have identified and investigated two platinum-bearing formations – ophiolite chromitebearing complexes, and the Khudolaz differentiated mafic-ultramafic complex with sulfide Cu-Ni mineralization.
I. R. Rakhimov   +2 more
doaj   +1 more source

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