Results 1 to 10 of about 110 (106)
Large-scale geological structures of the Egyptian Nubian Shield [PDF]
Scientific Reports, 2023 Integration of potential field- and structural data make it possible to trace surface and subsurface large-scale geological structures of the Egyptian Nubian Shield (ENS).
Zakaria Hamimi +3 more
doaj +2 more sources
Geochemistry, Geophysics, GeosystemsIn 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
Wei Lin, Michel Faure, Lingtong Meng
doaj +2 more sources
The Depositional RecordEstablishing the biogenicity of sedimentary surface textures with unresolved microbial origin is critical to any environmental and geobiological interpretation of clastic settings.
J. Javier Álvaro +5 more
doaj +2 more sources
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
doaj +1 more source
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
doaj +1 more source
The composition of zircon trace elements in the various Cadomian granitoid types of Taknar zone, south of Sabzevar [PDF]
پترولوژی, 2023 The composition of minerals in igneous rocks is influenced by the type and nature of their parent magma, and for this reason, minerals can provide valuable information regarding the original magma.
Seyed Ali Mazhari, Urs KlÃtzli
doaj +1 more source
60 years of the Serbo-Macedonian Unit concept: From Cadomian towards alpine tectonic frameworks [PDF]
Geološki Anali Balkanskoga Poluostrva, 2020 The study represents a summary of the hitherto tectonic concepts revolving around a peri-Gondwanan fragment referred to as the Serbo- Macedonian Unit. The Serbo-Macedonian Unit as a gneiss-dominated basement segment is positioned in the proximity of the ...
Spahić Darko, Gaudenyi Tivadar
doaj +1 more source
Geologica Acta, 2018 The Ediacaran-Lower Ordovician successions exposed in the Eastern Pyrenees are updated and revised based on recent U-Pb zircon radiometric ages, intertonguing relationships of carbonate-dominated strata, and onlapping patterns marking the top of volcano-
M. PADEL +3 more
doaj +3 more sources
Neoproterozoic-paleozoic evolution of the Drina formation (Drina-Ivanjica entity) [PDF]
Geološki Anali Balkanskoga Poluostrva, 2018 This paper addresses a Drina-Ivanjica basement member, Drina Formation, characterized by ŕ controversial Neoproterozoic to Carboniferous age. The Drina Formation is also informally referred to as the “Lower Drina Formation” and the “Upper Drina ...
Spahić Darko +3 more
doaj +1 more source
Variscan structures and their control on latest to post-Variscan basin architecture: insights from the westernmost Bohemian Massif and southeastern Germany [PDF]
Solid Earth, 2022 The Bohemian Massif exposes structures and metamorphic rocks remnant from the Variscan orogeny in central Europe and is bordered by the Franconian Fault System (FFS) to the west.
H. Fazlikhani, W. Bauer, H. Stollhofen
doaj +1 more source