Results 1 to 10 of about 871 (186)
Cadomian metabasites of the Eastern Pyrenees revisited
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 +12 more sources
Large-scale geological structures of the Egyptian Nubian Shield [PDF]
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
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 +3 more sources
The composition of zircon trace elements in the various Cadomian granitoid types of Taknar zone, south of Sabzevar [PDF]
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]
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
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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]
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]
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
We report new LA-ICP-MS U-Pb zircon ages of varied crystalline rocks occurring in the Serre Chevalier crystalline terrain, an allochtonous basement unit located at the top of the Briançonnais nappes stack ∼5 km west of Briançon city.
Thiéblemont Denis +4 more
doaj +1 more source
Geochronology and Lu-Hf isotope of mafic-intermediate rocks from SW Salmas: implication for Neoproterozoic juvenile melts [PDF]
The southwest Salmas metamorphosed mafic-intermediate intrusive rocks are located in Sanandaj-Sirjan zone in NW of Iran. The metamorphosed intrusives rocks comprise metagabbro and metadiorite that intruded the Precambrian metamorphosed volcanic ...
Fahime kozekoulani +2 more
doaj +1 more source

