Results 21 to 30 of about 5,763 (231)

Metamorphic titanite–zircon pseudomorphs after igneous zirconolite [PDF]

European Journal of Mineralogy, 2023
The formation of metamorphic zircon after baddeleyite is a well-known reaction that can be used to date the metamorphism of igneous silica-undersaturated rocks. By contrast, metamorphic minerals formed after igneous zirconolite have rarely been reported.
C. L. Urueña, C. Möller, A. Plan
doaj   +1 more source

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

Bulletin 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

Strengths and limitations of in situ U–Pb titanite petrochronology in polymetamorphic rocks: An example from western Maine, USA

Journal of Metamorphic Geology, 2021
Titanite is a potentially powerful U–Pb petrochronometer that may record metamorphism, metasomatism, and deformation. Titanite may also incorporate significant inherited Pb, which may lead to inaccurate and geologically ambiguous U–Pb dates if a proper ...
J. Walters, A. Cruz‐Uribe, W. Song, C. Gerbi, Kimberley Biela   +4 more
semanticscholar   +1 more source

Rare and Critical Metals in Pyrite, Chalcopyrite, Magnetite, and Titanite from the Vathi Porphyry Cu-Au±Mo Deposit, Northern Greece

Minerals, 2021
The Vathi porphyry Cu-Au±Mo deposit is located in the Kilkis ore district, northern Greece. Hydrothermally altered and mineralized samples of latite and quartz monzonite are enriched with numerous rare and critical metals.
Christos L. Stergiou, V. Melfos, P. Voudouris, L. Papadopoulou, P. Spry, I. Peytcheva, D. Dimitrova, Elitsa Stefanova, K. Giouri   +8 more
semanticscholar   +1 more source

Molybdenite Re–Os, titanite and garnet U–Pb dating of the Magushan skarn Cu–Mo deposit, Xuancheng district, Middle–Lower Yangtze River Metallogenic Belt

, 2021
The Magushan skarn Cu–Mo deposit is a representative example of the skarn mineralization occurring within the Xuancheng ore district of the Middle–Lower Yangtze River Metallogenic Belt of eastern China.
Yue Li, Yue Li, F. Yuan, S. Jowitt, Fangyue Wang, Xiangling Li, Yu-Feng Deng, Yunyue Wang, Taofa Zhou   +8 more
semanticscholar   +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

Geologica 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, Broska Igor, Krzemińska Ewa, Ondrejka Martin, Mikuš Tomáš, Vaculovič Tomáš   +5 more
doaj   +1 more source

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

Geological 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

The luminescence of titanite (CaTiSiO5) [PDF]

Materials Research Bulletin, 1988
The luminescence of CaTiSiO5 crystals is reported. The emission band has its maximum at 520 nm. The results are discussed in connection with titanium compounds containing comparable titanate polyhedra.
Blasse, G., Dirksen, G.J., Tanaka, I., Kojima, H.   +3 more
openaire   +2 more sources

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, Biserka Radanović-Gužvica   +1 more
doaj   +1 more source

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, Sonya Yakovleva, Ekaterina Salnikova, Svetlana Bogdanova, Irma Vejelyte   +4 more
doaj   +1 more source