Results 11 to 20 of about 1,482 (158)

Genesis of Chromitite in Qalander Area, Northern Iraq [PDF]

open access: yesKirkuk Journal of Science, 2006
The study area is an isolated ultramafic complex composite of harzburgite-dunite-chromitite association in Qalander area, abut 10 km east of Mergesur, Erbil City, northern Iraq.
doaj   +3 more sources

Uvarovite in podiform chromitite; the Moa-Baracoa ophiolitic massif, Cuba [PDF]

open access: yes, 2018
The chromitite pods of the Moa-Baracoa massif, in the eastern ophiolitic belt of Cuba, contain pre-existing gabbro sills. This association is affected by two processes of hydrothermal alteration.
Melgarejo i Draper, Joan-Carles   +2 more
core   +8 more sources

Integrated geophysical methods for boulder delineation to improve mining

open access: yesGeophysical Prospecting, Volume 71, Issue 7, Page 1226-1246, September 2023., 2023
Abstract Near‐surface boulders can pose serious challenges to opencast mining. They often introduce complexities, delays in drilling, blasting and excavation programmes, which subsequently decrease mining efficiency, increase mining risks and costs. The location of subsurface boulders and the identification of other geological features that may impact ...
Sikelela Gomo   +13 more
wiley   +1 more source

The Central Series of the Rum Igneous Complex, NW Scotland: the rises and falls of magma in a large mafic‐ultramafic volcano

open access: yesGeology Today, Volume 39, Issue 4, Page 130-143, July/August 2023., 2023
The Central Series of the Paleocene mafic to ultramafic Rum complex is the youngest of the three main cumulate series that make up the layered igneous complex of this famed Scottish island. The Central Series lies along the Long Loch Fault and provides insights into the feeder system to the Rum intrusion at an erosion level of about two kilometres ...
Brian G.J. Upton   +3 more
wiley   +1 more source

Abiotic Methane Generation via CO2 Hydrogenation With Natural Chromitite Under Hydrothermal Conditions

open access: yesGeochemistry, Geophysics, Geosystems, 2021
In modern continental serpentinization systems and ultramafic rock‐hosted sub‐seafloor hydrothermal systems, it is believed that chromitite plays an important role in abiotic hydrocarbon generation.
Hisahiro Ueda   +2 more
doaj   +1 more source

CHROMITITE PROSPECTING USING LANDSAT TM AND ASTER REMOTE SENSING DATA [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Studying the ophiolite complexes using multispectral remote sensing satellite data are interesting because of high diversity of minerals and the source of podiform chromitites.
A. Beiranvand Pour   +2 more
doaj   +1 more source

The structure and cryptic layering of the Pados-Tundra ultramafic complex, Serpentinite belt, Kola Peninsula, Russia [PDF]

open access: yesBulletin of the Geological Society of Finland, 2017
The Paleoproterozoic Pados-Tundra ultramafic complex, ~6 x 1.5-2.1 km in size and ~2.1 Ga in age, located in the Kola Peninsula of Russia, is the main representative of the Serpentinite belt in the northern Fennoscandian Shield.
A.Y. Barkov, A.A. Nikiforov, R.F. Martin
doaj   +1 more source

Petrography and Metamorphism of the MetasedimentaryCountry-Rocks of the Jacurici Valley Chromitite-HostingMafic-Ultramafic Complexes, Bahia,Northeastern Brazil [PDF]

open access: yesGeologia USP. Série Científica, 2001
Este trabalho enfoca as encaixantes metassedimentares das rochas ultramáficas, portadoras de mineralização de cromita, que ocorrem no nordeste do estado da Bahia. Esta região, conhecida como"Distrito Cromitífero do Vale do Rio Jacurici", apresenta grande
Eliane A. Del Lama   +2 more
doaj   +2 more sources

Solid-state redistribution of mineral particles in the upwelling mantle flow as a mechanism of chromite concentration in the ophiolite ultramafic rocks (on the example of Kraka ophiolite, the Southern Urals)

open access: yesGeoresursy, 2019
The main regularities of the structure of chromitite-bearing zones of ultramafic rock of the ophiolitic association are considered on the example of Kraka massifs.
D.E. Saveliev, V.B. Fedoseev
doaj   +1 more source

Hydrothermal remobilization platinum group elements and their secondary minerals in chromitite deposits of the Eastern Sayan ophiolites (Russia) [PDF]

open access: yesE3S Web of Conferences, 2019
Serpentinization is an important post-magmatic process in spreading and subducted zones. This process is the cause of the remobilization and redistribution of highly mobile elements, platinum group elements (PGE) and base metals. Secondary platinum group
Kiseleva Ol’ga   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy