Results 111 to 120 of about 11,921 (228)

L'unité de la Boghen (Nouvelle-Calédonie, Pacifique SW): un complexe d'accrétion jurassique. Données radiochronologiques préliminaires U-Pb sur les zircons détritiques. [PDF]

open access: yes, 2002
La datation des zircons détritiques de l'unité de la Boghen permet d'attribuer un âge post-liasique à cet ensemble, autrefois considéré comme le " socle anté-permien " de la Nouvelle-Calédonie.
Cluzel, Dominique, Meffre, Sébastien
core   +4 more sources

Malignant melanoma of the urethra: a rare histologic subdivision of vulvar cancer with a poor prognosis [PDF]

open access: yes, 2012
Malignant melanoma of the urethra is a rare tumour that is difficult to diagnose and treat, resulting in a poor prognosis. In this paper, we present the case of a 65-year-old woman who was referred to a gynaecologist because of a urethral mass that ...
Alkatout, Ibrahim   +8 more
core   +2 more sources

Re-discussion on the detrital zircon provenance of the lower Yanchang Formation in the southern Ordos Basin

open access: yesOpen Geosciences, 2016
The Ordos Basin is the second largest sedimentary basin in China. The Yanchang Formation is the key oilbearing layer in the Ordos Basin. The stratigraphic time interval and the stratigraphic division of the Yanchang Formation has been highly debated with
Zhang Yu   +3 more
doaj   +1 more source

Laser ablation U/Pb age patterns of detrital zircons in the Schlieren Flysch (Central Switzerland): new evidence on the detrital sources [PDF]

open access: yes, 2018
The palaeogeographic attribution of the Schlieren Flysch and its counterparts in the Gurnigel Nappe is still a matter of debate. These Late Alpine deep-sea trench deposits show a variable tectonic thrust relationship with other nappes inferring either an
Bütler, Endrio   +2 more
core  

Grain selection for representative detrital zircon age populations

open access: yesEarth and Planetary Science Letters
http://dx.doi.org/10.13039/501100009108 Minerals Research Institute of Western ...
Andreas Zametzer   +4 more
openaire   +2 more sources

Resolving Paragneiss Provenance at Grollier Lake in the Athabasca Granulite Terrane, Western Canadian Shield [PDF]

open access: yes, 2016
U-Pb crystallization ages of metamorphic and detrital zircons from all three paragneiss samples fall into the range of ca. 1.85-2.59 Ga, excluding two much older grains.
Ply, Dustin
core   +1 more source

DETRITAL ZIRCONS FROM THE PRECAMBRIAN OF THE IGARKA UPLIFT (NORTHWESTERN SIBERIAN PLATFORM)

open access: yesГеодинамика и тектонофизика
Herein we report the results of LA-ICP-MS dating of detrital zircons from eight stratigraphic levels of the Proterozoic section of the Igarka uplift (northwestern Siberian Platform).
B. B. Kochnev   +5 more
doaj   +1 more source

Progressive development of the Paleocene to early Miocene Shimanto accretionary complex in eastern Shikoku, Southwest Japan: response to magmatic arc evolution along the East Asian continental margin

open access: yesProgress in Earth and Planetary Science
Evolution of the Shimanto accretionary complex suggests implications for the geological history of the East Asian continental margin. To better understand the tectonic evolution of the complex during Paleocene to early Miocene, we collected new ...
Hidetoshi Hara   +2 more
doaj   +1 more source

Some general features of the Western Urals terrigenous deposits formation: Synthesis of U-Pb isotopic age data of detrital zircon and geochemical investigation of the sales and mudstones

open access: yesЛитосфера, 2016
The data on U-Pb-isotopic ages of detrital zircons from Riphean-Paleozoic and Early Triassic sandstones and geochemistry of shales and mudstones of the Western Urals are discussed.
A. V. Maslov   +8 more
doaj   +2 more sources

Resolution of the age structure of the detrital zircon populations of two Lower Cretaceous sandstones from the Weald of England by fission track dating [PDF]

open access: yes, 2017
Modes in the frequency of distribution of fission track ages obtained from detrital zircon grains may prove characteristic of individual sandstone bodies, supporting the identification of the sources from which a particular flow of sedimentary detritus ...
Clarke, A., Fitch, F. J., Hurford, A. J.
core  

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