pointon, michael a. smyth, helen omma, jenny e. morton, andrew c. schneider, simon hülse, peter rippington, stephen j. lopez-mir, berta crowley, quentin g. millar, ian
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A multi-proxy provenance study of Late Carboniferous to Middle Jurassic sandstones from the eastern Sverdrup Basin was undertaken employing optical petrography and heavy mineral analysis, chemical analysis of apatite, garnet and rutile grains, as well as detrital zircon U–Pb geochronology and Hf isotope analysis. Late Carboniferous to Middle Jurass...
schwarzinger, clemens
Natural pink zoisites owe their color to a high concentration of manganese paired with low concentrations of other coloring elements such as vanadium or titanium. Upon conventional heating, such stones typically suffer from the reduction of Mn3+ to the colorless Mn2+ species alongside the destruction of the brownish yellow color that is related to ...
essarraj, samira zoheir, basem steele-macinnis, matthew frische, matthias khalifa, abdelali ouadjou, abdelmalek
The Koudiat Aïcha Zn-Cu-Pb deposit (3–Mt ore @ 3 wt.% Zn, 1 wt.% Pb, 0.6 wt.% Cu) in the Jebilet massif (Morocco) comprises stratabound lenticular orebodies and crosscutting sulfide-bearing quartz ± carbonate veins in the lower Carboniferous Sarhlef volcano sedimentary succession. The veins are characterized by abundant pyrrhotite, sphalerite, subo...
putiš, marián nemec, ondrej ustalić, samir babajić, elvir ružička, peter koller, friedrich kurylo, sergii katanić, petar
The Dinaride Ophiolite Belt formed from the Jurassic part of the Neotethys. The investigated Ozren ophiolite complex in Bosnia and Herzegovina consists of peridotites, plagioclase peridotites, plagiogranites, troctolites and other gabbroic rocks, and fewer basalts. Lherzolites and harzburgites contain corroded ortho- and clinopyroxene1 porphyroclas...
bozkaya, ömer yalçın, hüseyin
The mineral chemistry of illite/mica and chlorites, together with the evaluation of textural data of low-temperature metaclastic rocks, plays an important role in determining their origin and metamorphic grade. This study aimed to investigate the chemical properties of phyllosilicates in early Paleozoic metaclastic rocks in the Eastern Tauride Belt...
Chavide, Maria Tabatabaei Manesh, Seyed Mohsen Ahmadian, Jamshid
Published in
Petrology
AbstractThe Urumieh-Dokhtar Magmatic Arc (UDMA) appears as a nearly linear suite of magmatic rocks that extends from NW to SE Iran parallel with the orogenic suture of the Zagros Fold-Thrust belt. The Qazan granitoids formed along the central part of UDMA and span a wide range of felsic rocks, including granodiorite, quartz diorite, diorite, and mo...
stergiou, christos l. melfos, vasilios voudouris, panagiotis papadopoulou, lambrini spry, paul g. peytcheva, irena dimitrova, dimitrina stefanova, elitsa
The Gerakario Cu-Au porphyry deposit in the Kilkis ore district, northern Greece, contains epithermal quartz-stibnite veins on the eastern side of the deposit, which crosscut a two-mica gneiss. Metallic mineralization in these veins consists of stibnite + berthierite + native antimony + pyrite + arsenopyrite, and minor marcasite, pyrrhotite, chalco...
layton-matthews, daniel mcclenaghan, m. beth
This paper provides a summary of traditional, current, and developing exploration techniques using indicator minerals derived from glacial sediments, with a focus on Canadian case studies. The 0.25 to 2.0 mm fraction of heavy mineral concentrates (HMC) from surficial sediments is typically used for indicator mineral surveys, with the finer (0.25–0....
Ferrando, C. France, L. Basch, V. Sanfilippo, A. Tribuzio, R. Boulanger, M.
Beneath slow spreading ridges, melt bodies are generally considered to represent ephemeral magma reservoirs filled with crystal mushes. Formation of the oceanic crust requires at least partial extraction of melts from these crystal mushes. However, melts collection and extraction are processes yet to be fully constrained. We investigate olivine gab...
ARAÚJO NETO, JOSÉ F. BARRETO, SANDRA B. CARRINO, THAIS A. SOUZA, IGOR M.B.A. SANTOS, GLENDA L.
Abstract The Paraná emerald deposit is one of the few occurrences of emerald, a rare beryl variety, in Borborema Province, northeastern Brazil. We characterized the Paraná deposit by combining field geology, petrography, whole-rock geochemistry, mineral chemistry, and reflectance spectroscopy. The mineralization is associated with phlogopite-, acti...
