Chromitiferous
WebSep 1, 1999 · Compositional variation of chromite is limited within the massive LG6 Chromitite layer, where chromite is the sole cumulus phase. Compositions vary significantly in chromitiferous orthopyroxenite and in those samples where the immediate contact between the silicate and oxide cumulates has been intersected. WebShinkle, David; University of Minnesota Duluth. Department of Geological Sciences. (2014). "The Black Thor Igneous Complex: A Chromitiferous Ultramafic-mafic Layered Intrusion …
Chromitiferous
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WebFeb 1, 1996 · The chromitiferous rocks of the Troodos ophiolite complex, Cyprus D. Greenbaum Geology 1977 The Troodos massif is a well-developed ophiolite complex comprising a sequence of basaltic volcanic rocks overlying a plutonic complex of upper gabbros and lower peridotites containing podiform… Expand 115 Chromite deposits in … WebThe chromitiferous ore is rich in Fe–Ni–Cu sulfides and PGEs. Concentration of disseminated sulfides in the upper parts of basement gneisses is caused by downward migration of residual sulfide liquid and fractionation out of the remaining platinum elements. Sulfide-rich zones with massive sulfides accumulating at the footwall are due to the ...
WebRead Volume 72 Issue 7 of Economic Geology. Ultramafic-Hosted Ni-Cu-Co-(As) Mineralization from an Ancient Oceanic Transform Fault Zone in the Troodos Ophiolite, Cyprus: An Analogue for Ultramafic Sea Floor Massive Sulfide Mineralization? WebDec 1, 2007 · The chromitiferous ore body is situated between the transition . zone of dunite and harzburgite which belong to the Ye sildag ultramafic rock units. The Yesildag …
WebThe chromitiferous rocks range from disseminations and minor segregations of chromite in dunite to orebodies of economic size and grade composed of nearly … WebThe upper ultramafic unit contains, more frequently, pegmatoidal sections, and the Chromitiferous Harzburgite unit has less massive chromitite layers than the …
WebAug 14, 2013 · The few metres to 200 m thick on the Chrome, Page, Peterson chromitiferous zone on the Chrome property in general Block and National-Ledin properties (Figure GS-19-3). contains numerous straight, continuous, massive chro- The transition series was either absent or ranges from 1 to mitite (>85% chromite) seams …
Webchromitiferous orthopyroxenite approximately 0.02 m thick. This is in turn overlain by the massive chromitite (1.04 m thick). The chromitite itself has negligible amounts of inter cumulus orthopyroxene. A thin orthopyroxenite layer (0.01 m thick) occurs just below the upper contact and several city chic bling flirt topWebDec 1, 2010 · The rejects of the beneficiation process contains chromite which can be used as a feed for the ferro chrome plants. Through physical beneficiation the iron enrichment … city chic black jumpsuitWebDec 1, 2000 · Materials Chromitiferous overburden, analaR grade sulphuric acid, NaC1, CaCI2, MgSO4, A12 (SO4)3, Na2SO4, K2SO4 and sea water. EXPERIMENTAL … city chic biba maxi dressWebDec 31, 2024 · The upper ultramafic unit contains, more frequently, pegmatoidal sections, and the Chromitiferous Harzburgite unit has less massive chromitite layers than the southeastern parts of the complex, whereas the gabbro(-norite) units contain more interstitial liquid with late-stage minerals. The findings confirm that the anvil-shaped intrusion in ... city chic black topWebThe Troodos massif is a well-developed ophiolite complex comprising a sequence of basaltic volcanic rocks overlying a plutonic complex of upper gabbros and lower peridotites containing podiform chromite deposits. The chromitiferous rocks range from disseminations and minor segregations of chromite in dunite to orebodies of economic … city chic blue dressWebJan 2, 2024 · The anorthosites are also characterized by a slightly smaller average plagioclase grain size than plagioclase in the norite (1·41 mm and 1·54 mm, … city chic blousesWebChromite in small podiform deposits has 100 Cr/ (Cr + Al) ratios of 62–85, which are consistent with crystallization from such melts. Most of the chromite composition parameters are similar to those of ophiolite deposits except for the high ferric iron contents (2.77–8.95 wt% Fe 2 O 3 ). city chic board of directors