Results 101 to 110 of about 33,129 (274)

Chemistry, Morphology and Origin of Magmatic-Reaction Chromite Stringers Associated with Anorthosite in the Upper Critical Zone at Winnaarshoek, Eastern Limb of the Bushveld Complex

Journal of Petrology, 2018
The occurrence of numerous chromitite layers within the Rustenburg Layered Suite of the Bushveld Complex, South Africa, has been widely cited in models to explain the origin of the igneous layering.
R. Scoon, G. Costin
semanticscholar   +1 more source

Síntese de pigmentos pretos à base de Fe, Co e Cr pela rota dos precursores poliméricos Synthesis of Fe-, Co- and Cr-based black pigments by the polymeric precursor route

Cerâmica, 2006
Pigmentos pretos à base de Co, Fe e Cr foram sintetizados pelo método dos precursores poliméricos. Analizou-se o efeito do tratamento térmico no desenvolvimento da cor e de estabilidade dos pigmentos. O resultado da composição otimizada do pigmento foi a
P. R. G. Gonçalves Jr, J. H. G. Rangel, M. M. Oliveira, E. Azevedo, L. P. S. dos Santos, E. Longo   +5 more
doaj   +1 more source

The formation of ore mineral deposits on the Moon: A feasibility study [PDF]

Most of the ore deposits on Earth are the direct result of formation by hydrothermal solutions. Analogous mineral concentrations do not occur on the Moon, however, because of the absence of water.
Lu, Fengxiang, Taylor, Lawrence A.
core   +1 more source

Improving Lithological Mapping by SVM Classification of Spectral and Morphological Features: The Discovery of a New Chromite Body in the Mawat Ophiolite Complex (Kurdistan, NE Iraq)

Remote Sensing, 2014
The mineral ore potential of many mountainous regions of the world, like the Kurdistan region of Iraq, remains unexplored. For logistical and sometimes political reasons, these areas are difficult to map using traditional methods.
Arsalan A. Othman, Richard Gloaguen
doaj   +1 more source

Origin of Platinum Group Minerals (PGM) Inclusions in Chromite Deposits of the Urals

Minerals, 2018
This paper reviews a database of about 1500 published and 1000 unpublished microprobe analyses of platinum-group minerals (PGM) from chromite deposits associated with ophiolites and Alaskan-type complexes of the Urals.
F. Zaccarini, G. Garuti, E. Pushkarev, O. Thalhammer   +3 more
semanticscholar   +1 more source

Geochemical behavior of chromium in minerals of high-Mg rocks, associated with granitoid massifs of the Urals

Литосфера, 2019
Research subject. High-magnesium rocks associated with the granitoid massifs of the Urals are represented by gabbro-diorites and their melanocratic varieties (hornblendites), as well as by diorites and quartz diorites.
S. V. Pribavkin, G. A. Кallistov, Т. A. Оsipova, I. A. Gottman, E. A. Zin’kova   +4 more
doaj   +1 more source

Volatile products from the interaction of KCl(g) with Cr2O3 and LaCrO3 in oxidizing environments [PDF]

Cooled target collection techniques and high pressure mass spectrometric sampling were used to measure the relative rates of oxidative vaporization and to identify the volatile products emanating from samples of chromia and Mg-doped lanthanum chromite ...
Dillard, J. G., Fryburg, G. C., Kohl, F. J., Miller, R. A., Stearns, C. A.   +4 more
core   +1 more source

Bioaccessibility and human health risk : chromium in Glasgow [PDF]

, 2006
The assessment of risk to human health from contaminated land is based on a comparison of predicted human exposure to a contaminant with a Health Criteria Value (HCV) that represents an exposure below which there is thought to be little or no risk to ...
Bewley, RJ.F., Broadway, A., Cave, M.R., Farmer, J.G., Fordyce, F.M., Ngwenya, B.T.   +5 more
core  

Petrogenetic Implications for Ophiolite Ultramafic Bodies from Lokris and Beotia (Central Greece) Based on Chemistry of Their Cr-spinels

Geosciences, 2017
Cr-spinels from ultramafic rocks from Lokris (Megaplatanos and Tragana), and Beotia (Ypato and Alyki) ophiolitic occurrences were studied. These rocks comprise principally harzburgite with minor dunite. Small amounts of clinopyroxene-rich harzburgite and
Panagiotis Pomonis, Andreas Magganas
doaj   +1 more source

Does Firm Ownership Differentiate Environmental Compliance? Evidence from Indian Chromite Mining Industry [PDF]

This paper compares the environmental performance of public and private firms in the context of Indian chromite mining industry. It proposes a new methodology to measure firms’ environmental performance in a multidimensional framework.
Das, Amarendra
core   +1 more source