Results 41 to 50 of about 971 (142)

Evolution and economic significance of listwaenites associated with Neoproterozoic ophiolites in south Eastern Desert, Egypt [PDF]

open access: yes, 2013
Most South Eastern Desert ophiolites are found along the Allaqi-Heiani-Gerf suture along the Egypt-Sudan border. Serpentinites, altered slices of upper mantle, are the main components of this suture and other sutures in the Arabian-Nubian Shield ...
Azer, M.K.
core   +3 more sources

Sulfides associated with podiform bodies of chromite at Tsangli, Eretria, Greece

open access: yesMineralium Deposita, 1984
Small bodies of pyrrhotite, chalcopyrite, minor pentlandite, and magnetite occur at the peripheries of podiform bodies of chromite in ultramafic ophiolitic rocks at Tsangli, Eretria, central Greece. Banding of magnetite and sulfide within the bodies is reminiscent of magmatic banding.
Economou, M.I., Naldrett, A.J.
openaire   +2 more sources

Serpentinites and serpentinites within a fossil subduction channel : La Corea mélange, eastern Cuba [PDF]

open access: yes, 2011
A variety of metaultramafic (serpentinite) rocks in La Corea mélange, Sierra de Cristal, eastern Cuba, show differences in chemical, textural and mineralogical characteristics demonstrating a variety of protoliths.
Blanco-Quintero, I. F.   +4 more
core   +6 more sources

Formation and evolution of the chromitites of the Stillwater Complex : a trace element study [PDF]

open access: yes, 2011
Large layered intrusions, such as the Stillwater Complex, contain cyclic units of chromite-rich layers (cm to m thick) having kilometre-scale lateral extension.
Barnes, Sarah-Jane   +2 more
core   +1 more source

The Chemistry of Serpentine Soils Developed Over A Podiform Chromite Deposit, Western Sierra Nevada, USA [PDF]

open access: yesActa Geologica Sinica - English Edition, 2017
The Chinese Camp mining district in the western Sierra Nevada of California, USA, contains a serpentinized, ultramafic dunite intrusion with podiform chromite deposits. Serpentine soils have developed over this intrusion, creating a unique ecosystem of endemic vegetation and soils characterized by low Ca/Mg ratios and high Ni and Cr contents.
Lisa L. STILLINGS, Steven W. BLECKER
openaire   +1 more source

The structure of and origin of nodular chromite from the Troodos ophiolite, Cyprus, revealed using high-resolution X-ray computed tomography and electron backscatter diffraction [PDF]

open access: yes, 2015
Nodular chromite is a characteristic feature of ophiolitic podiform chromitite and there has been much debate about how it forms. Nodular chromite from the Troodos ophiolite in Cyprus is unusual in that it contains skeletal crystals enclosed within the ...
Barnes, S.   +7 more
core   +1 more source

An Alternative Scenario on the Origin of Ultra-High Pressure (UHP) and Super-Reduced (SuR) Minerals in Ophiolitic Chromitites: A Case Study from the Mercedita Deposit (Eastern Cuba) [PDF]

open access: yes, 2018
The origin of the assemblage of ultra-high pressure (UHP), super-reduced (SuR) and several crustally derived phases in ophiolitic chromitites is still hotly debated.
Andreazini, Aleu   +6 more
core   +6 more sources

The Spatial Distribution of Some Chromite Deposits in Iran, Using Fry Analysis [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2006
The spatial distribution of mineralization is the foremost concern in regional exploration and it could be considered as a very important tool in the investigation of mineral deposits.
doaj  

An ultrahigh pressure mineral assemblage from the Luobusa Ophiolite, Tibet [PDF]

open access: yes, 2001
in http://www.lpi.usra.edu/meetings/gold2001/pdf/3138 ...
Bai, WJ   +4 more
core  

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