Results 1 to 10 of about 1,927,269 (224)
Геодинамика и тектонофизика, 2015 The tectonic and paleogeographic evolution of the Ural-Mongol belt between the cratons of Baltica, Siberia, and Tarim is the key to the formation of the Eurasian supercontinent during Paleozoic time, but the views on this complicated process remain very ...
Natalia M. Levashova +3 more
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Middle to Late Devonian–Carboniferous collapse basins on the Finnmark Platform and in the southwesternmost Nordkapp basin, SW Barents Sea [PDF]
Solid Earth, 2018 The SW Barents Sea margin experienced a pulse of extensional deformation in the Middle–Late Devonian through the Carboniferous, after the Caledonian Orogeny terminated.
J.-B. P. Koehl +6 more
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Devonian Spores in a Middle Silurian Reef [PDF]
Grana Palynologica, 1963 Abstract A subsurface core from the Tilden reef (Middle Silurian) in southern Illinois contains a large and diverse assemblage of hystrichospherids and plant spores. The plant spores are restricted to sinuous cracks filled with calcite and brownish-gray clay.
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Acta Palaeontologica Polonica, 2023 Fossils of Devonian ammonoids are abundant and well-preserved in the Anti-Atlas of Morocco; as such they provide an invaluable record of regional morphological disparity changes (diversity of shapes) that characterise the first steps of ammonoid ...
NINON ALLAIRE +6 more
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Parautochthonic paleooceanic and island-arc complexes of the Southern Urals
Литосфера, 2020 Research objects. Paleozoic (Ordovician–Middle Devonian) volcanic-sedimentary complexes of the contiguous Sakmara and Mugodzharskaya structural zones of the Southern Urals, which have a paleo-oceanic and island-arc nature. Мaterials and methods.The work
V. G. Korinevsky
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GIVETIAN–FRASNIAN BOUNDARY CONODONTS FROM KERMAN PROVINCE, CENTRAL IRAN
Rivista Italiana di Paleontologia e Stratigrafia, 2013 The Middle - Late Devonian boundary is investigated based on twenty-two conodont species and subspecies from three sections in the north and west of Kerman, southeastern central Iran.
HOSSEIN GHOLAMALIAN +4 more
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Middle Devonian lithostratigraphy of Belgium
Geologica BelgicaThe revision of the lithostratigraphic scale of southern Belgium, based on the revised geological map of Wallonia and recent stratigraphic and sedimentological works, has led to the re-definition of 63 lithostratigraphic units for the Middle Devonian Series.
Denayer, Julien +3 more
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The stages of сalcareous Algae development in the Urals during Devonian
Литосфера, 2015 The article highlights the following stages of the development microscopic Devonian Algae in the Urals: the rise of Algae in the early Devonian (Karpinski time), degradation of Algae flora during the end of Early Devonian (taltiysk time), the Middle ...
A. L. Anfimov
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A Middle Devonian Callixylon (Archaeopteridales) from Ronquières, Belgium [PDF]
Review of Palaeobotany and Palynology, 2012 article i nfo A permineralized Callixylon trunk is reported from Ronquieres, a mid to late Givetian (Middle Devonian) locality from Belgium. The specimen consists of an 80 cm long trunk adpression whose central area is pre- served as a pyrite permineralization. The pyritized area is composed of a eustele surrounded by secondary xylem.
Cornet, Luc +3 more
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Geochemistry, Geophysics, Geosystems, 2018 The thick Silurian siliciclastic sedimentary rocks in the Qin‐Fang region contrasting with their absence in surrounding regions have long been an enigma for the early Paleozoic geology of South China. Here we employ detrital zircon U‐Pb geochronology and
Xinchang Zhang +5 more
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