Results 21 to 30 of about 4,934 (160)

U-Pb age of titanite from diorit of Osnytsky Block (Volyn Megablock of Ukrainian Shield)

open access: yesГеологія і корисні копалини Світового океану, 2023
The Osnytsky block is a constituent part of the Osnytsky-Mikashevytsky volcano-plutonic belt. The leading place in the geological structure of the Osnytsky block is occupied by the rock association, which includes a number of plutonic formations from ...
VYSOTSKY O.B.   +3 more
doaj   +1 more source

Timing of syn-orogenic, high-grade transtensional shear zone formation in the West Uusimaa Complex, Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 2022
We present zircon and titanite U-Pb ages from granulite-facies transtensional shear zones and a greenschist facies strike-slip shear zone in the Karkkila-Vihti area, West Uusimaa. The zircon rim and titanite ages of c.
Taija Torvela, Matti Kurhila
doaj   +1 more source

Dating Deformation with Titanite [PDF]

open access: yes, 2022
Directly dating deformation is a critical, unresolved challenge in tectonics. The mineral titanite (CaTiSiO5) is one of the best candidates for a “deformation chronometer”—a way to interpret dates in their microstructural context to directly date ...
Moser, Amy Catherine
core   +1 more source

Titanite composition and SHRIMP U–Pb dating as indicators of post-magmatic tectono-thermal activity: Variscan I-type tonalites to granodiorites, the Western Carpathians

open access: yesGeologica Carpathica, 2019
Titanite belongs to the common accessory minerals in Variscan (~360–350 Ma) metaluminous to slightly peraluminous tonalites to granodiorites of I-type affinity in the Tatric and Veporic Units, the Western Carpathians, Slovakia.
Uher Pavel   +5 more
doaj   +1 more source

U-Pb dating identifies titanite precipitation in Paleogene sandstones from a volcanic terrane, East Greenland

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2019
Titanite (CaTiSiO5) occurs as a rare mineral in magmatic and metamorphic rocks. It is commonly found in clastic sedimentary rocks as an accessory heavy mineral – a mineral of high density.
Rikke Weibel, Tonny B Thomsen
doaj   +1 more source

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

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

Ti MINERALS IN ORES AND SKARNS OF THE AKTASH MAGNETITE-POLYMETALLIC DEPOSIT, WESTERN KARAMAZAR, TAJIKISTAN [PDF]

open access: yesМинералогия
The article characterizes Ti minerals from different mineral assemblages of the Aktash magnetite-polymetallic deposit (Western Karamazar, Northern Tajikistan).
U.A. Yatimov   +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

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