Results 81 to 90 of about 5,763 (231)

U-Pb age of Kaapvaal craton titanite: geotectonic interpretation and correlation with the Karelian craton

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2019
The results of dating of Kaapvaal Craton titanite are reported. It is shown that metamorphiczircon, apatite, amphibole and garnet in the Neoarchaean tectono-thermal activation belt in the eastern Swaziland terrane have an age of ca.
Наталья Сергеевна Нестерова, Александр Иванович Слабунов, Наиля Гаптрахмановна Ризванова, Natalya Nesterova, Alexander Slabunov, Nailya Rizvanova   +5 more
doaj   +1 more source

Gemological and Chemical Characterization of Gem-Quality Titanite from Morocco

Crystals
Titanite is a widespread accessory mineral in igneous, metamorphic, and hydrothermal rocks, but few comply with gem-grade requirements. Previous studies on Moroccan titanite focused on elementary composition and U-Pb dating.
Yu Yuan, Zhuang Miao, Yi Zhao, Bo Xu, Jialu Gu, Pengyu Yuan   +5 more
doaj   +1 more source

Geochronology of the felsic rocks in Orijärvi, southern Finland – implications for stratigraphy [PDF]

Estonian Journal of Earth Sciences
The Orijärvi area within the Paleoproterozoic Uusimaa belt contains volcanic and minor sedimentary formations, providing valuable insights into the oldest Svecofennian crust in southern Finland.
Elisa Toivanen, Teemu Vehkamäki, Markku Väisänen, Jaakko Kara, Hugh O’Brien   +4 more
doaj   +1 more source

Geochemical characteristics of titanite and U-Pb age of garnet from mineral mines of the Southern Urals

Записки Горного института
Mineralogical-geochemical (SIMS method) study of titanite and geochronological (ID-TIMS method) study of garnets from mineral mines of the Southern Urals has been carried out. The mineral associations containing titanite belong to four contrasting types:
Vladislav S. Stativko, Anton B. Kuznetsov, Vadim V. Smolensky, Nailya G. Rizvanova, Nadezhda A. Sergeeva   +4 more
doaj  

Metamict titanite [PDF]

Acta Crystallographica Section A Foundations of Crystallography, 2010
Tobias Beirau, Ulrich Bismayer, Carsten Paulmann   +2 more
openaire   +1 more source

Yttro‐Titanit, eine neue Mineralspecies [PDF]

Annalen der Physik
n ...
openaire   +2 more sources

Al-Rich Titanites from Mont Blanc Alpine Fissures: Evidence of Ti-Nb-Y-REE Mobility during Water–Rock Interactions

Crystals
Titanites can be excellent markers of element transfer in medium-temperature retrograde metamorphism. Euhedral titanites from several alpine fissures from Mont Blanc, particularly those of Périades and Courtes, crystallised at the end of the main quartz ...
Michel Cathelineau, Chantal Peiffert
doaj   +1 more source

The solubility of titanite in silicate melt determined from growth and dissolution experiments

Contributions to Mineralogy and Petrology, 2022
John Cammerer Ayers, Daniel M. Flanagan, C. Miller, E. Watson, F. Ryerson, B. Wallrich, M. Ackerson   +6 more
semanticscholar   +1 more source

Palaeoproterozoic assembly of the São Francisco craton, SE Brazil : new insights from U–Pb titanite and monazite dating.

, 2017
Isotopic U–Pb titanite and monazite data from the southern Sao Francisco craton better constrain the timing of the tectono-thermal event that led to the amalgamation of the craton and the crust that forms the basement of its fringing orogenic belts in ...
C. Aguilar, F. Alkmim, C. Lana, F. Farina   +3 more
semanticscholar   +1 more source

Geological and isotopic constraints on the copper ore formation in Ta Phoi area, Lao Cai province, Northwestern Vietnam

Горные науки и технологии
The Ta Phoi copper deposit, located in the northeastern Phan Si Pan zone, Northwestern Vietnam, is a significant site of Neoproterozoic Cu mineralization.
K. T. Hung, D. X. Ngo
doaj   +1 more source