Results 111 to 120 of about 1,125 (137)

Laser-ablation split-stream ICP petrochronology

Chemical Geology, 2013
Abstract Laser-ablation split-stream (LASS) analysis—high-speed, high spatial-resolution, simultaneous isotopic and elemental analysis—enables petrochronology at a new level, through the interpretation of isotopic dates combined with elemental abundances and/or isotopic tracers.
Andrew R.C. Kylander-Clark, Bradley R. Hacker, John M. Cottle   +2 more
openaire   +1 more source

Deformation and metasomatism recorded by single-grain apatite petrochronology

Geology, 2022
Abstract The timing and processes of ductile deformation and metasomatism can be documented using apatite petrochronology. We integrated microstructural, U-Pb, and geochemical analyses of apatite grains from an exhumed mylonitic shear zone in the St.
Margaret L. Odlum, Drew A. Levy, Daniel F. Stockli, Lisa D. Stockli, Joel W. DesOrmeau   +4 more
openaire   +1 more source

Petrochronology of oxidized granulites from southern Peru

Journal of Metamorphic Geology, 2019
AbstractSapphirine–quartz granulites from the Cocachacra region of the Arequipa Massif in southern Peru record early Neoproterozoic ultrahigh‐temperature metamorphism. Phase equilibrium modelling and zircon petrochronology are used to quantify timing and pressure–temperature (P–T) conditions of metamorphism.
Chris Yakymchuk, Adrian Rehm, Zhuoheng Liao, John M. Cottle   +3 more
openaire   +1 more source

Zircon Petrochronology of the Kışladaǧ Porphyry Au Deposit (Turkey)

Economic Geology, 2022
Abstract Porphyry deposits typically occur in subduction-related arcs but have more recently also been described in postsubduction, collisional to extensional back-arc settings. These different tectonic environments not only might imply different genetic processes but also seem to result in different metal endowments (e.g., Au rich ...
Paolillo, Luca, Chiaradia, Massimo, Ulianov, Alexey   +2 more
openaire   +2 more sources

Unraveling orogenic processes through U–Pb garnet petrochronology

2022
Orogenic processes typically proceed through a number of tectonic stages in which rocks are subjected to burial, heating, exhumation and cooling. The rates and durations of the prograde stages are commonly poorly constrained, because the minerals typically used for age dating mostly form late in the process during decompression and the onset of cooling,
Marschall, Horst, Axel, Gerdes, Leo, Millonig, Richard, Albert, Aratz, Beranoaguirre, Dominik, Hezel   +5 more
openaire   +1 more source

Petrochronologic constraints on Paleozoic tectonics in southern New England

2023
ABSTRACT The Appalachian Mountains were formed through multiple phases of Paleozoic orogenesis associated with terrane accretion. The timing, tempo, and significance of each event in New England are obscured by overprinting, the limits of geochronologic tools, and differences between lithotectonic domains.
Ian Hillenbrand*, Michael L. Williams, Michael J. Jercinovic, Matthew T. Heizler, Daniel J. Tjapkes   +4 more
openaire   +1 more source

Petrochronology Based on REE-Minerals: Monazite, Allanite, Xenotime, Apatite

Reviews in Mineralogy and Geochemistry, 2017
### REE-minerals Monazite, xenotime, and allanite are REE1-minerals sensu stricto because lanthanides (La…Lu) and yttrium are critical constituents in them. Apatite does not require REE, but because it contains substantial REE in many rocks, it is included in this review.
openaire   +1 more source

ADVANCES IN RUTILE PETROCHRONOLOGY

Geological Society of America Abstracts with Programs, 2020
Ellen Kooijman, Matthijs A. Smit, Melanie Schmitt   +2 more
openaire   +1 more source

Developing Reference Materials for High-Resolution Apatite Petrochronology

Goldschmidt2023 abstracts, 2023
Francisco Apen, Sean Gaynor, Blair Schoene   +2 more
openaire   +1 more source

5. Electron Microprobe Petrochronology

2017
Michael L. Williams, Michael J. Jercinovic, Kevin H. Mahan, Gregory Dumond   +3 more
openaire   +1 more source