Results 21 to 30 of about 275,631 (233)
Cadomian metabasites of the Eastern Pyrenees revisited
Geologica Acta, 2022 This study presents a new geochemical, petrological, and geochronological U–Pb dataset from Ediacaran metabasites of the Canigó and Cap de Creus massifs, Eastern Pyrenees.
Núria Pujol-Solà +7 more
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Geologica Acta, 2022 This work assessed the age distribution of Cadomian/Pan-African orogenic events (550-590 and 605-790Ma, respectively) in several zones of Iberian Massif by means of detrital and inherited zircon analysis compilation. Detrital zircon age spectra show that
Martim Chichorro +4 more
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Geological Society Special Publication, 2023 The recent discovery of Ediacaran ophiolites in the SW Iberian Massif has made it possible to pinpoint the evolution of the Cadomian basement of Europe. The Calzadilla and Merida ophiolites (gabbroic protoliths dated at c. 600 and 594 Ma, respectively)
R. Arenas +9 more
semanticscholar +1 more source
Geological Society Special Publication, 2022 Cornute stylophorans are a minor, although typical, component of Middle–Late Ordovician echinoderm assemblages adapted to soft siliciclastic substrates in high-latitude peri-Gondwanan regions.
B. Lefebvre +5 more
semanticscholar +1 more source
Rivista Italiana di Paleontologia e Stratigrafia, 2021 Lower Ordovician brachiopod macrofaunas in Belgium (Avalonia) are seldom collected and studied due to the poor preservation of material. Here we describe a new fauna of linguliformean brachiopods from the Chevlipont Formation (lower Tremadocian) in the ...
YVES CANDELA +5 more
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Paleozoic Decollement Displaced the Surface Trace of Iapetus Ocean Closure in Northern Appalachians
Geophysical Research Letters, 2023 The northern Appalachians record accretion of Laurentia‐ and Gondwana‐derived terranes to Laurentian margin during the formation of Pangea. Terrane bounding structures, key to reconstructing this history, are poorly understood at depth.
V. Levin +3 more
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Middle–Late Ordovician organic- walled phytoplankton from Sweden: diversity and early radiation [PDF]
Estonian Journal of Earth Sciences, 2023 The Borenshult-1 core, drilled in the vicinity of Motala, east of Lake Vättern in south central Sweden, comprises a well-dated and nearly complete succession of marine marly carbonates deposited relatively close to land. The 34 core samples analyzed for
Claudia V. Rubinstein, Vivi Vajda
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Preservation of fossils in the Šárka Formation (Darriwilian, Czech Republic) [PDF]
Estonian Journal of Earth Sciences, 2023 The Šárka Formation is a well-known, fossiliferous Ordovician deposit in Bohemia. It has been targeted by fossil collectors since the 19th century due to the excellent preservation of many fossils.
Petr Kraft, Jana Bruthansová
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Comptes Rendus. Géoscience, 2021 The Posada Valley amphibolites in the inner zone of Variscan Sardinia are characterized by garnet porphyroblasts containing epidote, titanite, quartz, clinopyroxene, amphibole, and plagioclase concentrated in the garnet core.
Scodina, Massimo +2 more
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Ordovician graptolites from the basal part of the Palaeozoic transgressive sequence in the Karadere area, Zonguldak Terrane, NW Turkey [PDF]
Estonian Journal of Earth Sciences, 2014 The Karadere area to the east of Safranbolu in NW Anatolia is one of the very few localities in Turkey where the contact between the Cadomian basement and the Lower Palaeozoic transgressive succession is well exposed.
M. Cemal Göncüoglu +3 more
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