Results 21 to 30 of about 11,494 (230)
Ti MINERALS IN ORES AND SKARNS OF THE AKTASH MAGNETITE-POLYMETALLIC DEPOSIT, WESTERN KARAMAZAR, TAJIKISTAN [PDF]
МинералогияThe article characterizes Ti minerals from different mineral assemblages of the Aktash magnetite-polymetallic deposit (Western Karamazar, Northern Tajikistan).
U.A. Yatimov +4 more
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A neoproterozoic age for the chromitite and gabbro of the Tapo Ultramafic Massif, Eastern Cordillera, Central Peru, and its tectonic implications [PDF]
, 2011 The ultramafic-mafic rocks of the Tapo Complex are exposed in the Eastern Cordillera of the Central Peruvian Andes. This complex is composed of serpentinised peridotites and metabasites with some podiform chromitite lenses and chromite disseminations and
Amaral +25 more
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Crystallographic Determination of Titanite from Smilevski Dol in Selečka Mountain, Macedonia
Geologia Croatica, 2010 On 30 crystal s of titani tc, goniometrically measured, the appearanceof faces of 25 forms was determined. Crystallographic elements werecalculated and morphology and paragenesis of minerals were described.The shape of the crystals was represented by ten
Vladimir Zebec +1 more
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Deeply subducted continental fragments - Part 2: Insight from petrochronology in the central Sesia Zone (western Italian Alps) [PDF]
, 2018 Subducted continental terranes commonly comprise an assembly of subunits that reflect the different tectono-metamorphic histories they experienced in the subduction zone.
Burn, Marco +4 more
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Vestnik MGTU, 2019 Grothite – rare F-Al-rich type of titanite – has been found in accessory zircon from the granitoids of the pre-Jurassic basement of the Verkhnerechensky oil-gas area (in the southern part of the Yamal Peninsula) as a result of the study.
Erokhin Yu. V. +2 more
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Timing of ductile shearing within the Drūkšiai–Polotsk Deformation Zone, Lithuania: a U–Pb titanite age [PDF]
Estonian Journal of Earth Sciences, 2010 A U–Pb dating of titanite from an augen granitoid mylonite in the Drūkšiai–Polotsk Deformation Zone has yielded a concordant age of 1534 ± 9 Ma.
Alevtina Fedoseenko +4 more
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Frontiers in Earth Science, 2019 Volcanic glasses are rarely preserved in the rock record, and the quality of preservation generally declines with increasing age. Records preserved in ancient basaltic glasses therefore provide important links between processes operating in the distant ...
Matthew R. M. Izawa +9 more
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Geosciences, 2020 Titanite in submarine mafic magmatic rocks of Neotethyan origin was studied to reveal its possible use as an indicator mineral of modern Cyprus-type VMS deposits.
Gabriella B. Kiss, Federica Zaccarini
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Radiometric ages and other isotopic data bearing on the evolution of Archaean crust and ores in the Kuhmo-Suomussalmi area, eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1999 The Archaean greenstone-gneiss terrain in the Kuhmo-Suomussalmi district in eastern Finland has been isotopically studied in connection with regional bedrock mapping and local mineral exploration projects.
M. Vaasjoki, K. Taipale, I. Tuokko
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Литосфера, 2019 Research subject. High-magnesium rocks associated with the granitoid massifs of the Urals are represented by gabbro-diorites and their melanocratic varieties (hornblendites), as well as by diorites and quartz diorites.
S. V. Pribavkin +4 more
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