Results 11 to 20 of about 871 (186)

Cadomian and Variscan sutures of Iberia: a comparison [PDF]

open access: yes, 2022
p.11-12. -A meeting held as a tribute to Teodoro Palacios on his retirement as Professor of Palaeontology at the University of Extremadura, Badajoz, Spain, 26th & 27th January, 2022, University of Extremadura, Badajoz.
Díez Fernández, Rubén   +20 more
core   +4 more sources

Transcurrent displacement of the Cadomian magmatic arc [PDF]

open access: yesPrecambrian Research, 2021
The Ossa-Morena Zone in Iberia, and equivalent terranes in northern France and Central Europe, are thought to be paleogeographically linked to the West African Craton at Ediacaran to early Paleozoic times. Evidence is mainly based on metasedimentary rock
González Lodeiro, Francisco   +6 more
core   +4 more sources

The Uplift of Armorica and the Bretonian Movements of the Variscan Orogeny‐New Insights From Detrital Zircons in the Early Carboniferous Terrigenous Rocks of the Laval Basin (Armorican Massif, France)

open access: yesGeochemistry, Geophysics, Geosystems
In 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

Biogenicity of amorphous organic matter and bacteriomorph acritarchs preserved in wrinkle structures from the Ediacaran Cíjara Formation, Spain

open access: yesThe Depositional Record
Establishing 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

Foreword: The Ediacaran-early Palaeozoic Cadomian zircon province fringing Northwest Gondwana

open access: yesGeologica Acta, 2022
This special issue grew out of the ¿The Panafrican and Cadomian orogenies in North Africa and western Europe¿ meeting, held online in June 2021.
Álvaro, J. Javier   +6 more
core   +5 more sources

Crustal Evolution of NW Iran: Cadomian Arcs, Archean Fragments and the Cenozoic Magmatic Flare-Up [PDF]

open access: yes, 2022
The Cadomian orogen of NW Iran includes a series of metamorphic rocks with zircon U-Pb ages between ca 562 and 505 Ma (Ediacaran to middle Cambrian). The Ediacaran-Cambrian basement is intruded by a series of Late Eocene-Late Oligocene I-type granitic ...
Li, Xian-Hua   +9 more
core   +2 more sources

Evidence for Pan African-Cadomian Tectonic upheavals in Himalaya

open access: yesJournal of the Palaeontological Society of India, 1993
K.S. Valdiya
doaj   +2 more sources

Prolonged magmatism and growth of the Iran-Anatolia Cadomian continental arc segment in Northern Gondwana

open access: yes, 2021
Highlights • Iran and Anatolia were characterized by vigorous Cadomian magmatism at 570–525 Ma. • Zircon Hf isotope data span a very wide εHf(t) variation of +20 to −43.2.
Stern, R. J.   +12 more
core   +2 more sources

Repeated magmatic buildup and deep “hot zones” in continental evolution: The Cadomian crust of Iran [PDF]

open access: yes, 2020
Highlights • Cadomian continental arc crust of NE Iran was built during ∼15 Myr of magmatism. • Magmatic flare-up in Iran Cadomia occurred over ∼45 Myr; 570 to 525 Ma.
Li, Q. L.   +8 more
core   +2 more sources

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

open access: yesFrontiers 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   +3 more
doaj   +1 more source

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