Results 11 to 20 of about 1,743 (188)

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   +2 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

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

Geology, geochemistry and tectonic setting of Pan-African serpentinites of Um Salim-Um Salatit area, Central Eastern Desert, Egypt

open access: yesEgyptian Journal of Remote Sensing and Space Sciences, 2012
This research aims at integrating remote sensing data and field studies for lithological mapping of different rock units. Geological interpretation of Landsat ETM+ image and field studies revealed that the study area is mainly covered by ophiolitic ...
A.K.A. Salem, A.E. Khalil, T.M. Ramadan
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

COMPOSITION OF SPINEL GROUP MINERALS FROM LATE PROTEROZOIC ULTRAMAFIC LAMPROPHYRES OF THE BOLSHETAGNINSKII ALKALINE ULTRAMAFIC CARBONATITE COMPLEX LOCATED AT THE URIK-IYA GRABEN, EASTERN SAYAN REGION

open access: yesГеодинамика и тектонофизика, 2022
This paper provides the results on spinel sampled from ailikites of the Bolshetagninskii massif of the East Sayan region. The study aimed to determine the history of formation of ultramafic lamprophyres of the Ziminsky complex. Spinel from three dikes of
Ya. N. Nugumanova, A. G. Doroshkevich
doaj   +1 more source

Home - About - Disclaimer - Privacy