Results 21 to 30 of about 11,333 (211)

Timing of ductile shearing within the Drūkšiai–Polotsk Deformation Zone, Lithuania: a U–Pb titanite age [PDF]

open access: yesEstonian 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
doaj   +1 more source

The inclusion of grothite in the zircon from granitoids of the crystalline basement of the Southern Yamal Peninsula

open access: yesVestnik 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
doaj   +1 more source

Radiometric ages and other isotopic data bearing on the evolution of Archaean crust and ores in the Kuhmo-Suomussalmi area, eastern Finland [PDF]

open access: yesBulletin 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
doaj   +1 more source

Deeply subducted continental fragments - Part 2: Insight from petrochronology in the central Sesia Zone (western Italian Alps) [PDF]

open access: yes, 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
core   +3 more sources

Crystallographic Determination of Titanite from Smilevski Dol in Selečka Mountain, Macedonia

open access: yesGeologia 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
doaj   +1 more source

Titanite Mineralization of Microbial Bioalteration Textures in Jurassic Volcanic Glass, Coast Range Ophiolite, California

open access: yesFrontiers 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
doaj   +1 more source

Compositional Variations of Titanite: A Possible New Tool for Cyprus-Type Volcanogenic Massive Sulfide Deposit Prospecting

open access: yesGeosciences, 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
doaj   +1 more source

Microstructures associated with the Sottunga-Jurmo shear zone and their implications for the 1.83–1.79 Ga tectonic development of SW Finland [PDF]

open access: yes, 2010
This petrographic study of rock samples from the area of a large-scale shear zone, the Sottung-Jurmo shear zone, in SW Finland, illuminates the thermal development of and strain distribution within the rocks during the last development stages of the ...
Carl Ehlers, Taija Torvela
core   +1 more source

Optical and Spectroscopic Properties of Lorenzenite, Loparite, Perovskite, Titanite, Apatite, Carbonates from the Khibiny, Lovozero, Kovdor, and Afrikanda Alkaline Intrusion of Kola Peninsula (NE Fennoscandia)

open access: yesCrystals, 2022
This manuscript deals with the analysis of significant rare earth elements (REE) minerals such as eudialyte, lorenzenite, loparite, perovskite, titanite, apatite, and carbonates.
Miłosz Huber   +3 more
doaj   +1 more source

Mineral chemistry of late Variscan gabbros from central Spain: constraints on crystallisation processes and nature of the parental magmas [PDF]

open access: yes, 2015
© 2016. Universidad Complutense de Madrid. The commercial rights of the printed and online versions of Journal of Iberian Geology are property of the Universidad Complutense de Madrid (UCM) and the Consejo Superior de Investigaciones CientÍficas (CSIC),
Jeffries, T   +3 more
core   +3 more sources

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