Results 81 to 90 of about 3,716 (224)

Eoarchean–Paleoproterozoic Tectonothermal History of the Acasta Gneiss Complex Constrained by Titanite and Apatite Petrochronology

Geochemistry, Geophysics, Geosystems
Deciphering Earth's earliest geodynamic processes requires temporally constrained chemical and structural data from rare exposures of ancient rocks.
Omar Khalil Droubi, Ann M. Bauer, Chloë Bonamici, William O. Nachlas, Joshua M. Garber, Michael J. Tappa, Jesse R. Reimink   +6 more
doaj   +1 more source

T-t Evolution of the Early Proterozoic Rocks in the Northern Ladoga Region from the Data on U-Pb, Rb-Sr and Sm-Nd Systems in Minerals

Геодинамика и тектонофизика
This paper presents the results of a study of isotopic systems in minerals and rocks in southern margin of the epi-Archean Karelian craton in the zone of its junction with the Svecofennian mobile belt.
Sh. K. Baltybaev, V. M. Savatenkov, M. E. Petrakova   +2 more
doaj   +1 more source

Notes on alunite, psilomlanite, and titanite [PDF]

Proceedings of the United States National Museum, 1916
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +3 more sources

Peixe Zircon as a Quality Control Reference Material in U‐Pb Geochronology by LA‐ICP‐MS

Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 369-389, June 2026.
Key Points Peixe#0 zircon was characterised for U‐Pb geochronology using CA‐ID‐TIMS, SIMS and a long‐term LA‐ICP‐MS data set. The consistent results establish Peixe#0 as a reference material for U‐Pb quality control. Trace element heterogeneity requires careful, CL‐guided spot selection.
Margareth Sugano Navarro, Erica Martini Tonetto, Elson P. Oliveira, Mauricio Ibañez‐Mejia, Cristina Talavera, Neal J. McNaughton, Jacinta Enzweiler, Michael Wiedenbeck   +7 more
wiley   +1 more source

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

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

Unravelling complex geologic histories using U–Pb and trace element systematics of titanite [PDF]

, 2019
Unravelling the spatio-temporal evolution of orogenic terranes requires a comprehensive understanding of the duration and extent of metamorphic events and hydrothermal alteration.
Olierook, Hugo K. H., Clark, Chris, Erickson, Timmons, Clark, Christopher, Jahn, Inalee, Erickson, Timmons M., Reddy, Steven, Kirkland, Christopher L., Kirkland, Chris, Reddy, Steven M., Taylor, Richard J. M., Olierook, Hugo, Taylor, Richard, Barham, Milo   +13 more
core   +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

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