Author: "Twelker, Evan" / Language: english / Topic: geological time scales and zircon - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Twelker, Evan"' showing total 4 results

Start Over Author "Twelker, Evan" Topic geological time scales Topic zircon Language english

Author: Gavel, Michelle M., Regan, Sean P., Holland, Mark, Wildland, Alec D., Wypych, Alicja, Naibert, Travis J., and Twelker, Evan
Subjects: BEDROCK, GEOLOGICAL time scales, GEOLOGICAL research, ZIRCON, GEOCHEMISTRY, DIORITE, IGNEOUS intrusions
Published: 2023

Author: Twelker, Evan and O'Sullivan, Paul
Subjects: *GEOLOGICAL time scales, *GEOCHEMISTRY, *ZIRCON, *PETROLEUM geology, *MUSCOVITE, *PROVENANCE (Geology), *FLYSCH
Published: 2021

Author: Todd, Erin, Kylander-Clark, Andrew, Wypych, Alicja, Twelker, Evan, and Sicard, Karri R.
Subjects: TRACE elements, ZIRCON, GEOLOGICAL time scales, GEOLOGICAL mapping
Published: 2017

Author: Twelker, Evan and O'Sullivan, Paul
Subjects: *ZIRCON, *GEOLOGICAL time scales, *IGNEOUS rocks, *CRYSTALLIZATION, *SEDIMENTARY rocks
Abstract: We report U-Pb zircon geochronology results for one metavolcanic and one metaplutonic rock sample from the Mount Hayes A-6 Quadrangle of central Alaska. These samples are representative of rock units assigned to the Clearwater terrane of Jones and others (1987), a sequence of greenschist-grade metavolcanic and metasedimentary rocks of poorly constrained age and tectonic origin. Our results indicate a crystallization age of 277.33 ± 11.84 Ma for a felsic metavolcanic rock, and a 268.05 ± 11.64 Ma crystallization age for a granitic metaplutonic unit intruding the former. [ABSTRACT FROM AUTHOR]
Published: 2016

Books, media, physical & digital resources

Searchworks