Results 21 to 30 of about 31,354 (260)
Геодинамика 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
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On the oxide formation on stainless steels AISI 304 and incoloy 800H investigated with XPS [PDF]
, 1987 The influence of cold work on the initially formed oxide layer on the stainless steels AISI 304 and Incology 800H has been studied by XPS. Oxidations were performed at pressures of 10-6-10-4 Pa and temperatures of 300–800 K.
Gellings, P.J. +3 more
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Effect of mechanical activation on the soda roasting kinetics of chromite
Sakarya 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
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Egyptian 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
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Effective Laboratory Method of Chromite Content Estimation in Reclaimed Sands
Archives of Foundry Engineering, 2016 The paper presents an original method of measuring the actual chromite content in the circulating moulding sand of foundry. This type of material is applied for production of moulds. This is the case of foundry which most frequently perform heavy casting
Ignaszak Z., Prunier J-B.
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The mineralogy, petrology, and composition of anomalous eucrite Emmaville [PDF]
, 2017 The Emmaville eucrite is a relatively poorly studied basaltic achondrite with an anomalous oxygen isotope signature. In this study, we report comprehensive mineralogical, petrographic, and geochemical data from Emmaville in order to understand its ...
Barrat +47 more
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Landsat-8 data for chromite prospecting in the Logar Massif, Afghanistan
Heliyon, 2018 Chromite is widely distributed in the east and southeast of Afghanistan, especially in Logar Province. Chromite mineralization is podiform-type and is hosted in the stratigraphically lowest ultramafic rocks of the Logar Ophiolite Complex.
Ramadan Abdelaziz +2 more
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INVESTIGATION OF CHROMITE ORE BENEFICIATION POSSIBILITIES WITH DIFFERENT GRAVITY CONCENTRATORS
Rudarsko-geološko-naftni Zbornik, 2023 The rapid development of industry increases the demand and importance of chromium. In this study, beneficiation possibilities of the representative chromite ore taken from the Tokat Province with a laboratory type jig, spiral concentrator, shaking table ...
Ali Aras, Hasan Ali Taner
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JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2021 The study area is located in North Kabaena District, Bombana Regency, Southeast Sulawesi. This paper is aimed to describe characacristics of chromite deposits.
Hasria +7 more
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Widespread abiotic methane in chromitites [PDF]
, 2018 Recurring discoveries of abiotic methane in gas seeps and springs in ophiolites and peridotite massifs worldwide raised the question of where, in which rocks, methane was generated.
Etiope, G. +8 more
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