Results 1 to 10 of about 33,129 (274)

Back to chromite as a mineralogical strategy for long-term chromium pollution control [PDF]

open access: yesNature Communications
Re-oxidation of Cr(III) in treated Cr-contaminated sites poses a considerable source of Cr(VI) pollution, necessitating stable treatment solutions for long-term control.
Tianci Hua   +10 more
doaj   +3 more sources

Metamorphism on Chromite Ores from the Dobromirtsi Ultramafic Massif, Rhodope Mountains (SE Bulgaria) [PDF]

open access: yesGeologica Acta, 2009
Podiform chromitite bodies occur in highly serpentinized peridotites at Dobromirtsi Ultramafic Massif (Rhodope Mountains, southeastern Bulgaria). The ultramafic body is believed to represent a fragment of Palaeozoic ophiolite mantle.
J.M. GONZÁLEZ JIMÉNEZ   +3 more
doaj   +9 more sources

Sub-pixel Mineral Mapping of Serpentine and Magnesite for Chromite Exploration, Using Hyperion (EO1) Images [PDF]

open access: yesAnalytical and Numerical Methods in Mining Engineering, 2023
Abdasht chromite mine is located in the ultramafic complex of southern Iran, which has abundant chromite reserves such as Soghan, Esfandagheh, Faryab, etc.
Saeed Khojastehfar   +2 more
doaj   +1 more source

Interpretation of magnetic and geoelectrical data based on geological and mineralogical evidence in the podiform chromite prospecting, Khoy ophiolite, Northwest Iran

open access: yesJournal of Economic Geology, 2021
Introduction Podiform chromite deposits are small magmatic chromite bodies formed in the lower section of an ophiolite complex. The Khoy ophiolite covers an extensive area in the northwest of Iran along the Iran-Turkey border.
Behnam Mehdikhani, Ali Imamalipour
doaj   +1 more source

CHROMITE-PLATINUM MINERALIZATION OF CLINOPYROXENITE-DUNITE MASSIF ZHELTAYA SOPKA, NORTH URAL [PDF]

open access: yesМинералогия, 2020
The paper presents the new data on platinum group minerals (PGM) and chromite from the Zheltaya Sopka massif, North Urals. Few chromite bodies along with specific composition of chromite indicate weak ore-forming processes developed in this massif ...
I.A. Kuzmin   +4 more
doaj   +1 more source

An Image Analysis-Based Methodology for Chromite Exploration through Opto-Geometric Parameters; a Case Study in Faryab Area, SE of Iran [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering, 2017
Traditional methods of chromite exploration are mostly based on geophysical techniques and drilling operations. They are expensive and time-consuming.
Mansur Ziaii   +3 more
doaj   +1 more source

Application of geological methods for prospecting of podiform chromite deposits in the Khoy ophiolite zone, Northwestern Iran

open access: yesJournal of Economic Geology, 2019
Introduction Podiform chromite deposits are small magmatic chromite bodies formed in the lower section of an ophiolite complex. Podiform chromite mines have produced 57.4 percent of the world’s total chromite production.
Jaber Masoudi, Ali Imamalipour
doaj   +1 more source

A neoproterozoic age for the chromitite and gabbro of the Tapo Ultramafic Massif, Eastern Cordillera, Central Peru, and its tectonic implications [PDF]

open access: yes, 2011
The ultramafic-mafic rocks of the Tapo Complex are exposed in the Eastern Cordillera of the Central Peruvian Andes. This complex is composed of serpentinised peridotites and metabasites with some podiform chromitite lenses and chromite disseminations and
Amaral   +25 more
core   +3 more sources

Effect of Temperature on Chromite-Based Moulding Sands Bonded with Sodium Silicate

open access: yesArchives of Foundry Engineering, 2016
In the paper, a research on effects of baking temperature on chromite sand base of moulding sands bonded with sodium silicate is presented. Pure chromite sand and its chromite-based moulding sand prepared with use of sodium silicate were subjected to ...
Stachowicz M.   +3 more
doaj   +1 more source

Effect of mechanical activation on the soda roasting kinetics of chromite

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2010
Soda roasting kinetics of non-activated and mechanically activated chromite was investigated. It was determined that the reaction was diffusion controlled between 700 – 900°C and chemical reaction controlled between 900 – 1200°C. The activation energy of
Kenan Yıldız, Güven Yarkadaş
doaj   +1 more source

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