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Study on diversity of Cr spinel composition within the ultramafic massif based on the example of SE Kosovo : implications for chromium deposit exploration and beneficiation
Języki publikacji
Abstrakty
New data on chemistry of Cr spinels hosted within the ultramafic massif located in SE Kosovo show variations in their primary composition, which depends on ore and rock types. Spinels form disseminated and vein type ores and accessory spinels in peridotites are characterized by lower Cr and higher Fe concentrations in comparison to spinels making up massive ores. Concentrations of these metals increase in altered spinels both in ores and peridotites. Contents ofMn and Zn tend to be higher in accessory spinels than in spinels occurring in ores. The lower Cr:Fe ratio for Cr-rich spinels in disseminated ores in relations to chromite in massive ores may have an influence on their industrial usefulness. The use of EPMA-WDS technique for detrital spinels should be considered as an effective tool for chromium deposit exploration, especially in greenfield projects, to assess an ultramafic massifpotential for hosting rich ores. Chemical analyses of spinels are recommended in planning a beneficiation process for the low-grade chromite ores, in order to obtain high quality concentrates.
Czasopismo
Rocznik
Tom
Strony
186--188
Opis fizyczny
Bibliogr. 4 poz., wykr.
Twórcy
autor
- AGH Akademia Górniczo-Hutnicza, Wydział Geologii, Geofizyki i Ochrony Środowiska, al. Mickiewicza 30, 30-059 Kraków
autor
- GH Akademia Górniczo-Hutnicza, Wydział Geologii, Geofizyki i Ochrony Środowiska, al. Mickiewicza 30, 30-059 Kraków
autor
- AGH Akademia Górniczo-Hutnicza, Wydział Geologii, Geofizyki i Ochrony Środowiska, al. Mickiewicza 30, 30-059 Kraków
autor
- AGH Akademia Górniczo-Hutnicza, Wydział Geologii, Geofizyki i Ochrony Środowiska, al. Mickiewicza 30, 30-059 Kraków
Bibliografia
- 1. DELURA K. 2012 - Chromitites from the Sudetic ophiolite: origin and alteration. Wydaw. UW, Warszawa.
- 2. DILEK Y., FURNES H. 2009 - Structure and geochemistry of Tethyan ophiolites and their petrogenesis in subduction rollback systems. Lithos, 113: 1-20.
- 3. GONZÁLEZ-JIMÉNEZ J.M., KERESTEDJIAN T., PROENZA J.A., GERVILLA F. 2009 - Metamorphism on chromite ores from the Dobromirtsi ultramafic massif, Rhodope Mountains (SE Bulgaria). Geol. Acta, 7(4): 413-429.
- 4. ROEDER P.L., CAMPBELL I.H. 1985 - The effect of postcumulus reactions on composition of olivine-spinels from the Jimberlana. J. Petrol., 26 (3): 763-786.
Uwagi
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-f759b74f-3c71-46e4-bcdf-f787b846fafa