Results 71 to 80 of about 194 (169)

Contrasting Textural and Chemical Signatures of Chromitites in the Mesoarchaean Ulamertoq Peridotite Body, Southern West Greenland

Geosciences, 2018
Peridotites occur as lensoid bodies within the Mesoarchaean orthogneiss in the Akia terrane of Southern West Greenland. The Ulamertoq peridotite body is the largest of these peridotites hosted within the regional orthogneiss.
Juan Miguel Guotana, Tomoaki Morishita, Ryoko Yamaguchi, Ikuya Nishio, Akihiro Tamura, Kenichiro Tani, Yumiko Harigane, Kristoffer Szilas, D. Graham Pearson   +8 more
doaj   +1 more source

The podiform chromitites in the Dagküplü and Kavad mines, Eskisehir ophiolite (NW-Turkey): Genetic implications of mineralogical and geochemical data

Geologica Acta, 2009
Mantle tectonites from Eskisehir (NW-Turkey) include high-Cr chromitites with limited variation of Cr#, ranging from 65 to 82. Mg# ratios are between 54 and 72 and chromite grains contain up to 3.71 wt% Fe2O3 and 0.30 wt% TiO2.
I. UYSAL, F. ZACCARINI, M.B. SADIKLAR, M. TARKIAN, O.A.R. THALHAMMER, G. GARUTI   +5 more
doaj  

Hydrothermal Pt mineralization in ophiolitic chromitites [PDF]

Goldschmidt2021 abstracts, 2021
Júlia Farré de Pablo, Joaquín Proenza, Jose María González-Jiménez, Thomas Aiglsperger, Lisard Torró, Cristina Domènech, Antonio Garcia-Casco   +6 more
openaire   +1 more source

Strontium isotope stratigraphy through the Flatreef PGE-Ni-Cu mineralization at Turfspruit, northern limb of the Bushveld Igneous Complex: evidence of correlation with the Merensky Unit of the eastern and western limbs. [PDF]

Miner Depos, 2021
Mayer CC, Jugo PJ, Leybourne MI, Grobler DF, Voinot A.   +4 more
europepmc   +1 more source

Chemical Characterization of Chromite from the Crominia and Mairipotaba Massifs, Goiás, Brazil [PDF]

Geologia USP. Série Científica, 2010
Metaultramafi c bodies tectonically emplaced within the metasedimentary sequence of the Araxá Group are associatedwith an ophiolitic melange in southeast Goiás. In the region of Cromínia - Mairipotaba, they occur as lenticular bodiesaligned E-W. Cumulate
Nélson Angeli, Guillermo Rafael Beltran Navarro, Antenor Zanardo, Silvio Roberto Farias Vlach   +3 more
doaj  

Chromitite deposits of Ufaley ultramafic massif (South Urals)

Georesursy
Data on the morphology, composition, textural and structural features of chromite deposits of the Ufaley ultramafic massif are presented. The mineralogical and compositional features of the host ultramafic rocks allow us to interpret them as depleted ...
D. E. Saveliev
doaj   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

Metamorphism on Chromite Ores from the Dobromirtsi Ultramafic Massif, Rhodope Mountains (SE Bulgaria)

Geologica Acta, 2009
Podiform chromitite bodies occur in highly serpentinized peridotites at Dobromirtsi Ultramafic Massif (Rhodope Mountains, southeastern Bulgaria). The ultramafic body is believed to represent a fragment of Palaeozoic ophiolite mantle.
J.M. GONZÁLEZ JIMÉNEZ, T. KERESTEDJIAN, J.A. PROENZA FERNÁNDEZ, F. GERVILLA LINARES   +3 more
doaj  

Correction for Thompson et al., The case and context for atmospheric methane as an exoplanet biosignature. [PDF]

Proc Natl Acad Sci U S A, 2022
europepmc   +1 more source

Ti³⁺ in corundum traces crystal growth in a highly reduced magma. [PDF]

Sci Rep, 2021
Oliveira B, Griffin WL, Gain SEM, Saunders M, Shaw J, Toledo V, Afonso JC, O'Reilly SY.   +7 more
europepmc   +1 more source