Results 51 to 60 of about 470 (166)
New evidence for a biostratigraphic assessment of the limestone succession comprising K‐bentonite levels exposed in the Yılanlı Formation of the Istanbul-Zonguldak Terrane are provided from conodonts at the Gavurpınarı quarry in Bartın area (NW Turkey).
AYŞE ATAKUL-ÖZDEMIR +4 more
doaj +1 more source
Abstract In the French Armorican Massif, the Bretonian phase of the Variscan orogeny has been defined by the Late Devonian (Famennian‐Frasnian) erosion gap, and the Early Carboniferous (Tournaisian) syntectonic terrigenous deposits of the l’Huisserie formation in the Laval basin in the Central‐North Armorican Domain, ascribed to the Armorica ...
Wei Lin, Michel Faure, Lingtong Meng
wiley +1 more source
Devonian strata of the Southern Timan: paleomagnetic data [PDF]
New paleomagnetic determinations are presented based on a reconnaissance collection of rocks of the Frasnian and Famennian stages of the Upper Devonian, selected on the river Ukhta and river Izhma.
Iosifidi A.G., Sal'naya N.V.
doaj
Three stages, namely Middle Devonian (I), Early Late Devonian (II) and Late Late Devonian (III), are distin-guished in the evolution of antiarchs (Placodermi, Antiarchi) in the Middle-Late Devonian of Northern Eurasia.
S. V. Moloshnikov
doaj +1 more source
Late Famennian Stromatoporoids from Dębnik Anticline, Southern Poland [PDF]
Famennian Stromatoporoidea from the Quasiendothyra communis Foraminiferal Zone and slightly younger strata from the Debnik anticline, southern Poland, form a succession of three consecutive assemblages. Assemblages 1 and 3 consist of representatives of the order Clathrodictyida, while assemblage 2 is dominated by the order Labechiida.
openaire +2 more sources
THE CAUSE OF BIOMASS EXTINCTION AT THE FRASNIAN-FAMENNIAN BOUNDARY, THE KERMAN PROVINCE SOUTHEASTERN, CENTRAL IRAN [PDF]
About 35 samples were collected from lower and upper parts of the proposed Frasnianamennian boundary in three sections of Upper Devonian marine sediments of the Kerman province.
doaj
ABOUT STRATIFICATION FAMENNIAN DEPOSITS SOUTH TIMAN
First Izhma Suite was selected for the South Timan in 1930 N. N. Tikhonovich in the study of oil deposits of the upper Devonian. Part of this Suite, they had included a wide range of rocks exposed on the right Bank of the r. Izhma. Later D. C. Obruchev (1958) as part of the Suite rocks have been identified the remains of testaceous fish Bothriolepis ...
openaire +2 more sources
New data about the stable carbon and oxygen isotopic composition for the Frasnian/Famennian and Devonian/Carboniferous boundary intervals, as well as for middle and upper parts of the Tournasian Stage (the Lower Carboniferous), are represented in this ...
G. A. Mizens +4 more
doaj +2 more sources
Survivorship dynamics of the flora of Devonian Angarida. [PDF]
Dowding EM, Akulov NI, Mashchuk IM.
europepmc +1 more source

