Results 21 to 30 of about 32,456 (106)

The last stages of the Avalonian–Cadomian arc in NW Iberian Massif: isotopic and igneous record for a long-lived peri-Gondwanan magmatic arc

Tectonophysics, 2016
Peer ...
Pilar Andonaegui, Ricardo Arenas, Richard Albert, Sonia Sánchez Martínez, Rubén Díez Fernández, Axel Gerdes   +5 more
openaire   +3 more sources

Petrogenesis and tectonic setting of Aftabru-Qlichkandi High-K metaluminous intrusive bodies (South of Buin-Zahra): Evidences from Nd-Sr isotopic Data [PDF]

پترولوژی, 2022
Granites are the most important components of the continental crusts. As an important part of the Alpine-Himalayan global belt and the result of the Tethys evolutionary cycle, the Urmia-Dokhtar Magmatic Arc (UDMA) has formed during different magmatic ...
Hassan Gohari, Mohammad Hassan Karimpour, Hooshang Asadi Haroni, Seyyed Ahmad Mazaheri, Jose Francisco Santos, Tonny Bern Thomsen   +5 more
doaj   +1 more source

Geochronology and Lu-Hf isotope of mafic-intermediate rocks from SW Salmas: implication for Neoproterozoic juvenile melts [PDF]

پترولوژی, 2018
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, Mohammad Rahgoshay, Hadi Shafaii Moghadam   +2 more
doaj   +1 more source

Geochronology and detrital zircons sources from the Sierra Albarrana Domain (SW Iberian Massif)

Geogaceta, 2023
This study compiles the U-Pb and 40Ar/39Ar geochronology of the metasedimentary, migmatitic and granitic rocks of the Sierra Albarrana Domain, based on data recently published by the authors together with other bibliographic sources.
Byron Solis Alulima, Jacobo Abati Gómez, Alicia López Carmona, Gabriel Gutiérrez Alonso, Javier Fernández Suárez   +4 more
doaj   +1 more source

The Tectonic Map and Structural Provinces of the Late Neoproterozoic Egyptian Nubian Shield: Implications for Crustal Growth of the Arabian–Nubian Shield (East African Orogen)

Frontiers in Earth Science, 2022
The Late Neoproterozoic Egyptian Nubian Shield (ENS) has attracted increasing attention since the establishment of the Egyptian Geological Survey and Mining Authority (EGSMA (1896)), which conducted the first mapping.
Zakaria Hamimi, Zakaria Hamimi, Wael Hagag, Harald Fritz, Haitham Baggazi, Samir Kamh   +5 more
doaj   +1 more source

U-Pb ZIRCON DATING OF MIDDLE EOCENE CLASTIC ROCKS FROM THE GERCUS MOLASSE, NE IRAQ: NEW CONSTRAINTS ON THEIR PROVENANCE, AND TECTONIC EVOLUTION

Iraqi Geological Journal, 2021
The provenance of Middle Eocene clastic rock from the Gercus Molasse, NE Iraq was determined by detrital zircon (DZ) U-Pb geochronology. The Gercus Molasse in the Iraqi segment of the north-eastern Zagros Thrust Zone provides an ideal example of foreland
Aziz, Nabaz
doaj   +1 more source

Poly-Orogenic Melting of Metasedimentary Crust From a Granite Geochemistry and Inherited Zircon Perspective (Southern Calabria-Peloritani Orogen, Italy)

Frontiers in Earth Science, 2019
Inherited zircon ages and geochemical features of late Cadomian and late Variscan granitoids from the north-eastern Peloritani Mountains (NE Sicily) and the western Aspromonte Massif (SW Calabria) shed new light on the sources and processes involved in ...
Patrizia Fiannacca, Ian S. Williams, Rosolino Cirrincione, Antonino Pezzino   +3 more
doaj   +1 more source

Geochemical and Isotopic Characteristics of the Protolith of Eclogites from the North Shahrekord Metamorphic Complex: Evidence of Late Neoproterozoic Back-arc Basin development in Sanandaj-Sirjan Zone

Journal of Economic Geology, 2019
Introduction All of the major tectonic zones of Iran, except for the Kopet-Dagh, contain Pan-African crystalline basement. Subduction of the Proto-Tethys at about 630 Ma caused Cadomian arc– and backarc magmatism in the northern margin of Gondwana ...
Forough Malek Mahmoudi, Ali Reza Davoudian Dehkordy, Nahid Shabanian Boroujeni, Hossein Azizi   +3 more
doaj   +1 more source

Data for: Prolonged Magmatism and Growth of the Iran-Anatolia Cadomian Continental Arc Segment in Northern Gondwana

, 2020
Much of the crust of Iran and Anatolia, including their oldest exposed rocks, formed during an episode of intense convergent margin (arc) magmatism as a result of subduction of oceanic lithosphere beneath northern Gondwana from ca 620 Ma to ca 500 Ma ...
Shafaii Moghadam, H (via Mendeley Data)
core   +1 more source

Cadomian/Pan-African consolidation of the Iberian Massif assessed by its detrital and inherited zircon populations: is the ~610Ma age peak a persistent Cadomian magmatic inheritance or the key to unravel its Pan-African basement?

Geologica Acta, 2023
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.
Martim Chichorro, Ana Rita Solà, Telmo Bento dos Santos, João Lains Amaral, Lourenço Crispim   +4 more
doaj