Results 61 to 70 of about 194 (169)

PGE distribution in the Chromite bearing mafic-ultramafic Kondapalli Layered Complex, Krishna district, Andhra Pradesh, India

Open Geosciences, 2015
The Kondapalli Layered Complex (KLC) is a dismembered mafic-ultramafic layered intrusion, mainly composed of gabbroic and anorthositic rocks with subordinate ultramafics and chromitite.
Meshram Tushar M., Nannaware Shraddha. B., Nannaware B., Bhatacharjee Shantanu, Waghmare Minakshi. M., Rajakumar T.   +5 more
doaj   +1 more source

Multi-stage formation of the Feragen ophiolite, Norway: Implication from petrology and geochemistry of peridotites and chromitites and its potential for prospecting

China Geology
: The ultramafic massif of Feragen, which belongs to the eastern ophiolitic belt of Norway, has abundant amounts of chromite ores. Recent studies have revealed a complex melt evolution in a supra-subduction zone (SSZ) environment. This study presents new
Tian Qiu, Fa-hui Xiong, David G. Gee, Yuan Li, Jing-sui Yang   +4 more
doaj   +1 more source

COMPARISON OF PLATINUM GROUP MINERALS FROM ELUVIAL-DELUVIAL PLACER OF THE SVETLY BOR CLYNOPIROXENITE-DUNITE MASSIF (CENTRAL URALS) [PDF]

Минералогия, 2017
Morphology and composition of platinum group minerals (PGMs) from loose sediments of eluvial-deluvial placer of the Svetly Bor clinopyroxenite-dunite massif are studied.
R.S. Palamarchuk, S.Yu. Stepanov, D.A. Khanin, A.V. Antonov, A.A. Zolotarev   +4 more
doaj  

Geochemistry of podiform chromitite and host rocks within the Buem Structural Unit, Northwestern Benin Republic: Implications for the geodynamic evolution of the Dahomeyide orogenic belt

Results in Earth Sciences
The paper presents the geochemistry, origin and geodynamic setting of podiform chromitite and host rocks from the Buem Structural Unit (BSU) in the northwestern Benin Republic.
Daniel N. Kouagou N’Dah, Samuel B. Olobaniyi, Luc C. Adissin Glodji, Sory I.M. Konate, Elhadji Mory Traore, Daniel Kwayisi, Clement B. N’Satta, Ibrahim S. Yerima   +7 more
doaj   +1 more source

Chromitites: An Enigmatic Mantle Rock Type

Journal of Geography (Chigaku Zasshi), 2010
Various characteristics of podiform chromitites, an enigmatic mantle rock member, are reviewed in this article. Chromitites are composed of chromian spinel, with the general formula (Mg, Fe2+)(Cr, Al, Fe3+)2O4, and silicates (mainly olivine). The Fe3+ content is generally very low, being less than 0.1 to all trivalent cations, in mantle chromian ...
openaire   +2 more sources

Exotic accessory minerals in layered chromities of the Campo Formoso complex (Brazil)

Geologica Acta, 2006
The Campo Formoso stratiform intrusive complex, in Bahia State, Brazil, considered to be of Paleoproterozoic age, consists of a tabular body of ultramafic rocks about 40 km long and 100-1100 m wide.
F. ZACCARINI, G. GARUTI, R. MARTIN
doaj   +1 more source

The Rustenburg Layered Suite formed as a stack of mush with transient magma chambers. [PDF]

Nat Commun, 2021
Yao Z, Mungall JE, Jenkins MC.
europepmc   +1 more source

Chromite chemistry of a massive chromitite seam in the northern limb of the Bushveld Igneous Complex, South Africa: correlation with the UG-2 in the eastern and western limbs and evidence of variable assimilation of footwall rocks. [PDF]

Miner Depos, 2021
Langa MM, Jugo PJ, Leybourne MI, Grobler DF, Adetunji J, Skogby H.   +5 more
europepmc   +1 more source

Morphological, textural and structural features of chromitite deposits of Main ore field of Kempirsay massif (South Urals, Kazakhstan)

Georesursy
In the paper data of morphology, textural and structural features of chromitites from deposits of southeast part of Kempirsay massif (South Urals, Kazakhstan) are summarized. It is showed that formation of unique chromium deposits is closely related with
D. E. Saveliev, D. K. Makatov, V. S. Portnov, R. A. Gataullin   +3 more
doaj   +1 more source

Genesis of Chromitite in Qalander Area, Northern Iraq [PDF]

Kirkuk University Journal-Scientific Studies, 2006
The study area is an isolated ultramafic complex composite of harzburgite-dunite-chromitite association in Qalander area, abut 10 km east of Mergesur, Erbil City, northern Iraq. The chromite-bearing rocks are located within lower part of Walash Volcanic Series of Paleocene-Eocene age.
openaire   +2 more sources