Results 11 to 20 of about 1,245 (182)

Episodic construction of the early Andean Cordillera unravelled by zircon petrochronology [PDF]

Nature Communications, 2021
Episodic magmatism of the early Andes is the result of a complex interplay between mantle, crust, slab and sediment contributions that can be traced using zircon chemistry.
José Joaquín Jara, Fernando Barra, Martin Reich, Mathieu Leisen, Rurik Romero, Diego Morata   +5 more
doaj   +7 more sources

Petrogenesis and Tectonic Evolution of Cenozoic Magmatism in the Southernmost Northern Andes: Insights From Zircon Petrochronology

Geochemistry, Geophysics, Geosystems
This study integrates new zircon U–Pb ages, zircon εHf(t)–δ18O isotopic data, and whole‐rock geochemistry to refine the temporal and spatial framework of magmatism in the southern Northern Andes (SNA) from ∼65 to 6 Ma.
J. Iglesias, C. Witt, L. C. Sandoval Espinel, M. Zattin, M. Poujol, O. Bruguier, O. Poma, M. J. Hernández, O. Averbuch, M. Seyler, D. Bosch, F. Chanier, S. Ventalon, C. Liorzou, V. Bosse   +14 more
doaj   +3 more sources

Geochronology and geochemistry data for the Elbrus, Tyrnyauz, and Chegem magmatic centers, Greater Caucasus, Russia [PDF]

Data in Brief, 2021
The dataset presented here is associated with the article “Young Silicic Magmatism of the Greater Caucasus, Russia with implication for its delamination origin based on zircon petrochronology and thermomechanical modeling” [1]. We present detailed sample
I.N. Bindeman, J.-F. Wotzlaw, R.A. Stern, M. Chiaradia, M. Guillong, D.P. Colón   +5 more
doaj   +2 more sources

Age of the magma chamber and its physicochemical state under Elbrus Greater Caucasus, Russia using zircon petrochronology and modeling insights [PDF]

Scientific Reports, 2023
Mount Elbrus, Europe's tallest and largely glaciated volcano, is made of silicic lavas and is known for Holocene eruptions, but the size and state of its magma chamber remain poorly constrained.
I. N. Bindeman, O. E. Melnik, M. Guillong, I. S. Utkin, J.-F. Wotzlaw, A. K. Schmitt, R. A. Stern   +6 more
doaj   +2 more sources

Monazite Microstructures and Their Interpretation in Petrochronology [PDF]

Frontiers in Earth Science, 2021
The phosphate mineral monazite (LREE,Y,Th,Ca,Si)PO4 occurs as an accessory phase in peraluminous granites and Ca-poor meta-psammopelites. Due to negligible common Pb and very low Pb diffusion rates at high temperatures, monazite has received increasing ...
Bernhard Schulz
doaj   +2 more sources

Titanite petrochronological data across the continental crust section exposed in Val d'Ossola (Ivrea-Verbano Zone, Italy) [PDF]

Data in Brief
Titanite-bearing calc-silicates and mafic gneisses, metamorphosed under amphibolite- to granulite-facies conditions, crop out in Val d'Ossola area (Ivrea-Verbano Zone, Italy).
Stefania Corvò, Andrew R.C. Kylander-Clark, Antonio Langone   +2 more
doaj   +2 more sources

Petrochronology of polygenetic white micas (Naxos, Greece) [PDF]

Journal of Metamorphic Geology, 2023
Naxos in the Greek Cyclades preserves a type example of polymetamorphism. The southern and northern parts of the island record different Tertiary P–T histories between Eocene and Miocene times, including a blueschist facies event, one or more amphibolite/
Skelton, Alasdair, Uwe Ring, Glodny, Johannes, Skelton, Alasdair,, Ring, Uwe,, Alexandre Peillod, Johannes Glodny, Peillod, Alexandre, Ring, Uwe, Villa, Igor M., Igor M. Villa, Alasdair Skelton   +11 more
core   +6 more sources

Metasomatism and Mélange Development at the Conditions of Modern Deep Slow Slip: P‐T‐t Evolution of Metasomatic Rocks (Pimu'nga/Santa Catalina Island, CA)

Geochemistry, Geophysics, Geosystems
The subduction interface hosts megathrust earthquakes and ductile creep, is fluid‐rich and chemically dynamic, and produces metasomatic rocks that may host episodic tremor and slow slip (ETS).
W. Hoover, C. B. Condit, A. Moser, S. Mulcahy, P. C. Lindquist, V. E. Guevara   +5 more
doaj   +2 more sources

Origin and evolution of the Variscan Léon eclogites: insights from zircon and garnet petrochronology [PDF]

European Journal of Mineralogy
Eclogites record the deep burial and exhumation of crustal terranes, which are key tectonic markers in the evolution of orogenic belts. Unraveling the evolution of eclogites and eclogite-bearing terranes may nevertheless be challenging, especially in old
L. Tual, C. Authemayou, C. Lotout, C. Lotout, M. A. Smit, M. A. Smit, K. Musiyachenko, D. Bussien Grosjean, E. Kooijman, E. Bruand   +9 more
doaj   +2 more sources

Titanite Petrochronology

Reviews in Mineralogy and Geochemistry, 2017
Titanite (CaTiSiO5) is a common mineral in calc-silicates, metamorphosed igneous rocks, and calc-alkaline plutons. The mineral was first named by Martin Klaproth in 1795 for its high content of the element titanium, which had been discovered only a few ...
Matthew J. Kohn, Kohn, Matthew J.
core   +4 more sources