Zobrazeno 1 - 10
of 55
pro vyhledávání: '"S. Andrew DuFrane"'
Publikováno v:
Minerals, Vol 14, Iss 9, p 886 (2024)
There were three errors in the original publication [...]
Externí odkaz:
https://doaj.org/article/6f64c486e7954cdcb484581433208837
Publikováno v:
Minerals, Vol 14, Iss 6, p 578 (2024)
New U-Pb zircon ages are reported for granulite facies crustal xenoliths brought to the surface by mafic lavas in the Snake River Plain. All samples yield Meso-to-Neoarchean ages (2.4–3.6 Ga) that significantly expand the known extent of the Archea
Externí odkaz:
https://doaj.org/article/099a1ea31b9b484d8f610bacd158b3fc
Autor:
Grayson S. Bilak, Kaylyn Niemetz, Jesse R. Reimink, Alberto V. Reyes, Thomas Chacko, S. Andrew DuFrane, Michael Belosevic, John W. F. Ketchum
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 23, Iss 5, Pp n/a-n/a (2022)
Abstract The Acasta Gneiss Complex (AGC) is a ∼2,400 km2 Hadean‐Mesoarchean terrane that contains the oldest known zircon‐bearing rocks on Earth. Despite its importance for early Earth geology, only a small fraction (∼50 km2) of the AGC has b
Externí odkaz:
https://doaj.org/article/dec56af66dfb4623871dcd0050fa82fd
Autor:
Benjamin J.C. Neil, Daniel B. Tersmette, Thomas Chacko, Larry M. Heaman, Bruce A. Kjarsgaard, Edith Martel, Robert A. Creaser, D. Graham Pearson, Richard A. Stern, S. Andrew Dufrane, Yan Luo
Publikováno v:
Geology. 51:597-601
We report the discovery of one of the largest ancient (>3.0 Ga) crustal terranes on Earth. Granitoids with crystallization ages >3.0 Ga and/or Sm-Nd depleted mantle model ages ≥3.2 Ga define a ~1000 × 100 km belt on the western margin of the Rae c
Autor:
Derek Drayson, Alfredo Camacho, Mary Sanborn-Barrie, Daniele Regis, Kyle Larson, Alix Osinchuk, S. Andrew DuFrane
Publikováno v:
Canadian Journal of Earth Sciences. 59:1031-1052
The recently recognized Sanagak Lake shear zone (SLsz) is a 165 km long, southwest striking corridor of high-strain rocks that transects the southern portion of Boothia Peninsula, Nunavut. This zone records pervasive deformation (DSL1) at conditions
Autor:
Hilary Corlett, Brandon Campbell, Hendrik Falck, Marko Szmihelsky, Wyatt M. Bain, S. Andrew DuFrane, Robin Adair, Ashley Went, Matthew Steele-MacInnis
Publikováno v:
Geology. 49:488-492
Hydrocarbons are commonly invoked as triggers for the precipitation of sphalerite in carbonate-hosted Pb-Zn deposits, but direct evidence for the presence of petroleum during sulfide mineralization is rarely documented. Here, we report evidence of fl
Autor:
Robert A. Creaser, S. Andrew DuFrane, Jeffrey Marsh, Jeremy P. Richards, Jingwen Mao, Joseph A. Petrus, Huishou Ye, Xuyang Meng
Publikováno v:
Economic Geology. 115:51-77
The Tongkuangyu copper deposit in the Zhongtiaoshan region, southern Trans-North China orogen, is hosted by a poorly constrained sequence of Paleoproterozoic volcano-sedimentary (quartz-sericite schist and biotite schist) and granitic rocks that have
Autor:
Serhiy D. Buryak, Alberto V. Reyes, Britta J.L. Jensen, Joshua H.F.L. Davies, John A. Westgate, S. Andrew DuFrane, Yan Luo, Duane G. Froese, D. Graham Pearson, Jeff A. Benowitz
Publikováno v:
Quaternary Geochronology. 73:101398
Autor:
Boris B. Kochnev, Andrey K. Khudoley, Nadezhda S. Priyatkina, S. Andrew Dufrane, Boris G. Pokrovsky, Anton B. Kuznetsov, Olga K. Kaurova, Vasiliy V. Marusin
Publikováno v:
Precambrian Research. 382:106877
Publikováno v:
American Journal of Science. 319:694-735
The tectonic history of the Appalachian orogen is recorded in the adjacent foreland. Offshore seismic data suggest that an initial, Middle Ordovician foreland basin was filled by sources in Newfoundland, whereas the Late Ordovician foreland basin was