Zobrazeno 1 - 10
of 165
pro vyhledávání: '"Dirk Frei"'
Autor:
Michael J. Flowerdew, Edward J. Fleming, David M. Chew, Andrew C. Morton, Dirk Frei, Aukje Benedictus, Jenny Omma, Teal. R. Riley, Eszter Badenszki, Martin J. Whitehouse
Publikováno v:
Geosciences, Vol 13, Iss 3, p 91 (2023)
The importance of topography generated by Eocene Eurekan deformation as a sediment source for sandstones deposited on the western Barents Shelf margin is evaluated through a sediment provenance study conducted on wellbore materials retrieved from Spi
Externí odkaz:
https://doaj.org/article/96f0cfd97319475ca25ce9d186612708
Publikováno v:
Geosciences, Vol 13, Iss 2, p 45 (2023)
The Colorado River has flowed across the dextral strike-slip plate boundary between the North American and Pacific plates since the latest Miocene or earliest Pliocene. The Fish Creek-Vallecito Basin (FCVB) lies on the Pacific Plate in southern Calif
Externí odkaz:
https://doaj.org/article/7a2df10c87704077a16d1b45b3259209
Autor:
Michael A. Pointon, Helen Smyth, Jenny E. Omma, Andrew C. Morton, Simon Schneider, Peter Hülse, Stephen J. Rippington, Berta Lopez-Mir, Quentin G. Crowley, Ian Millar, Martin J. Whitehouse, Dirk Frei, Robert A. Scott, Michael J. Flowerdew
Publikováno v:
Geosciences, Vol 13, Iss 1, p 10 (2022)
A multi-proxy provenance study of Late Carboniferous to Middle Jurassic sandstones from the eastern Sverdrup Basin was undertaken employing optical petrography and heavy mineral analysis, chemical analysis of apatite, garnet and rutile grains, as wel
Externí odkaz:
https://doaj.org/article/ab92a6765c4a4239b5d62795e51c4083
Publikováno v:
Geosciences, Vol 13, Iss 1, p 13 (2022)
A study of Triassic sandstones in the central North Sea, UK, has shown that combined detrital zircon and apatite geochronology and apatite trace element analysis is a powerful tool for reconstructing provenance for sandstones with diagenetically impo
Externí odkaz:
https://doaj.org/article/6ffd98786db2477b9dc7e9a2c1453b10
Autor:
Juan Moisés Casas-Peña, Juan Alonso Ramírez-Fernández, Fernando Velasco-Tapia, Eduardo Alejandro Alemán-Gallardo, Carita Augustsson, Bodo Weber, Dirk Frei, Uwe Jenchen
Publikováno v:
Data in Brief, Vol 35, Iss , Pp 106846- (2021)
From samples of the Paleozoic Tamatán Group (Huizachal–Peregrina Anticlinorium, Tamaulipas, Mexico), petrographic (qualitative and modal) and geochemical analyses (major, trace, and rare earth elements) were conducted. The first U–Pb geochronolo
Externí odkaz:
https://doaj.org/article/82eba08106444ec5a1afec80bdeec308
Autor:
Michael A. Pointon, Helen Smyth, Jenny E. Omma, Andrew C. Morton, Simon Schneider, Peter Hülse, Stephen J. Rippington, Berta Lopez-Mir, Quentin G. Crowley, Ian Millar, Martin J. Whitehouse, Dirk Frei, Robert A. Scott, Michael J. Flowerdew
Publikováno v:
Geosciences; Volume 13; Issue 1; Pages: 10
A multi-proxy provenance study of Late Carboniferous to Middle Jurassic sandstones from the eastern Sverdrup Basin was undertaken employing optical petrography and heavy mineral analysis, chemical analysis of apatite, garnet and rutile grains, as wel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bf9984e065bbe60b519b08c73417169
Publikováno v:
South African Journal of Geology. 124:795-804
The Naros Granite occurs as a large, northwest-trending ovoid batholith roughly 30 km long and 15 km wide straddling the Orange River border between South Africa and Namibia, 25 km northeast of Onseepkans. It consists mainly of a leucocratic to mesoc
Publikováno v:
South African Journal of Geology. 124:783-794
The Twakputs Gneiss is a garnetiferous, K-feldspar megacrystic, biotite granite-granodiorite orthogneiss. It represents a major unit in the Kakamas Domain of the Mesoproterozoic Namaqua-Natal Metamorphic Province extending about 250 km between Riemva
Publikováno v:
International Journal of Earth Sciences. 110:2705-2724
Metabasic rocks of the ophiolitic sequences of the Glockner Nappe and Eclogite Zone in the south-central Tauern Window, Austria, reveal important insights into rifting and spreading of the Alpine Tethys. U–Pb dating of magmatic zircons yields a con
Publikováno v:
Ore Geology Reviews. 157:105440