Results 51 to 60 of about 4,338 (216)
Frasnian gypidulid Brachiopods from the Holy Cross Mountains (Poland), Comparative stratigraphic analysis with the Dinant Synclinorium (Belgium) [PDF]
, 1990 The authors describe the Frasnian gypidulid brachiopods from the Holy Cross Mountains (Poland) with special emphasis on their stratigraphic distribution. Among the five taxa distinguished, Physemella christinae is new, two are identified as Metabolipa cf.
Godefroid, J, Racki, G
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Basin Research, Volume 37, Issue 6, November/December 2025.The spatial interplay between updip clastic and carbonate depositional systems and downdip detrital and biogenic mud dominated depositional systems are mapped temporally using the sequence stratigraphic method to predict the occurrence of aquifers, petroleum reservoirs and organic‐rich deposits. ABSTRACT Middle to Upper Devonian strata preserved in the
Rene Jonk, Kevin Bohacs, Ken Potma
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FRASNIAN AND VISEAN-NAMURIAN CONODONT FAUNAS AT PRAPROTNO, SLOVENIA
Rivista Italiana di Paleontologia e Stratigrafia, 2017 Conodont faunas from the limestone pebbles of the Upper Paleozoic Conglomerate at Praprotno, Slovenia demonstrate the presence of two faunas. The older fauna, marked by Palmatolepis surecta and Polygnathus decorosus is indicative of the Frasnian stage ...
TEA KOLAR-JURKOVSEK, BOGDAN JURKOVSEK
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Trace element variations in the Middle Frasnian punctata zone (Late Devonian) in the western Canada sedimentary basin: changes in oceanic bioproductivity and paleoredox spurred by a pulse of terrestrial afforestation? [PDF]
, 2010 The ‘punctata Event’ (Early–Middle Frasnian transition, Late Devonian) was recently recognized as yet another episode of major geochemical perturbations associated with the Middle-Late Devonian ecosystem readjustments which culminated in the Frasnian ...
Day, J., Sliwinski, M.G., Whalen, M.T.
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Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.Abstract Boundaries in the Phanerozoic chronostratigraphic scale are mainly precisely defined and dated, and many correspond to environmental catastrophes induced by the emplacement of LIPs. The pre‐Ediacaran geological timescale is currently subdivided by approximate absolute ages.
Shuan‐Hong Zhang +7 more
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Georesursy, 2018 A conodont sequence from the Przhidolian stage of the Upper Silurian and almost the entire Lokhkovian stage of the Lower Devonian has been established in the sections of the Upper Silurian-Lower Devonian on the southwestern part of the field named after ...
Т.М. Mavrinskaya +2 more
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, 2006 The name Frasnian, which comes from the locality of Frasnes near Couvin in Belgium, was introduced by Gosselet in 1879 and was formally retained for the lower stage of the Upper Devonian by the Subcommission on Devonian Stratigraphy in 1981. The modern definition of the Frasnian is based on conodonts and the historical background of the stage is ...
Coen-Aubert, M., Boulvain, Frédéric
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Geochemistry, Geophysics, Geosystems, Volume 26, Issue 6, June 2025.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
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Devonian strata of the Southern Timan: paleomagnetic data [PDF]
Нефтегазовая геология: Теория и практикаNew 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