Results 21 to 30 of about 871 (186)

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, Valeri Sachanski, Juan Carlos Gutiérrez-Marco, Cengiz Okuyucu   +3 more
doaj   +1 more source

Cadomian magmatism and metamorphism at the Ossa Morena/Central Iberian zone boundary, Iberian Massif, Central Portugal: Geochemistry and P–T constraints of the Sardoal Complex [PDF]

, 2020
: A well preserved Cadomian basement is exposed in the Iberian Massif, Central Portugal, at the Ossa Morena/Central Iberian zone boundary, which allows the determination of reliable geochemical data.
Dunning, G. R., Neiva, A.M.R., Henriques, S.B.A., Tajcmanová, L.   +3 more
core   +1 more source

Detrital zircon similarities and dissimilarities between the Iberian Pyrite Belt, Ossa-Morena Zone and Meguma

Geologica Acta, 2022
Despite the so-called exotic nature of the South Portuguese Zone relatively to the other major domains of the Iberian Massif of peri-Gondwanan affinity, Devonian detrital rocks of the oldest strata in the Iberian Pyrite Belt have a remarkable resemblance
João Lains Amaral, Ana Rita Solá, Telmo M. Bento dos Santos, Martim Chichorro   +3 more
doaj   +1 more source

Transversely isotropic lower crust of Variscan central Europe imaged by ambient noise tomography of the Bohemian Massif [PDF]

Solid Earth, 2021
The recent development of ambient noise tomography, in combination with the increasing number of permanent seismic stations and dense networks of temporary stations operated during passive seismic experiments, provides a unique opportunity to build the ...
J. Kvapil, J. Plomerová, H. Kampfová Exnerová, V. Babuška, G. Hetényi   +4 more
doaj   +1 more source

Variability in the sources of North Gondwana Cadomian basins tracked by Nd isotopic systematics (Iberian Massif)

, 2023
The Cadomian Orogeny encompassed the opening and closure of oceanic domains and associated sedimentary basins in the northern margin of Gondwana from Ediacaran to Early Cambrian time.
Díez Fernández, Rubén, José Manuel Fuenlabrada, Rojo Pérez, Esther, Esther Rojo Pérez, Sánchez Martínez, Sonia, Rubén Díez Fernández, Fuenlabrada, Jose Manuel, Sonia Sánchez Martínez, Arenas, Ricardo, Fuenlabrada, J.M., Ricardo Arenas, Arenas Martín, Ricardo, Pereira, M. Francisco, Rojo-Pérez, E., Manuel Francisco Pereira, Fuenlabrada Pérez, José Manuel   +15 more
core   +1 more source

ON PALEOTECTONIC BELONGING OF THE SUVANYAK METAMORPHIC COMPLEX (SOUTHERN URALS) FROM THE U-Th-Pb DATING OF DETRITAL ZIRCON GRAINS

Геодинамика и тектонофизика, 2023
U-Th-Pb isotope dating of grains of detrital zircon from quartzites of the Suvanyak metamorphic complex, which forms the Suvanyak tectonic unit that forms the western part of the Uraltau uplift, located in the east of the West Ural megazone in the ...
B. G. Golionko, N. B. Kuznetsov, A. V. Strashko, T. V. Romanyuk, A. S. Novikova, A. S. Dubensky, V. S. Sheshukov, K. G. Erofeeva   +7 more
doaj   +1 more source

Opening and closure of Cadomian peri-Gondwanan oceans: age and evolution of the Mérida Ophiolite (SW Iberia)

, 2022
In the SW Iberian Massif, the Ossa-Morena Complex contains a stack of units of different origin and tectonothermal evolution. Individual terranes of the complex record a Cadomian history, traditionally interpreted in relation to the dynamics of a peri ...
J. M. Fuenlabrada (13917163), Díez Fernández, Rubén, S. Sánchez Martínez (2845232), Garcia Casco, Antonio, R. Arenas (2845235), I. Novo-Fernández (9289166), A. Gerdes (2841890), A. Garcia-Casco (9289169), Sánchez Martínez, Sonia, Novo Fernández, Irene, Albert, R., Andonaegui Moreno, María Del Pilar, E. Rojo-Pérez (13917160), R. Albert (9190533), P. Andonaegui (13917166), R. Díez Fernández (9005975), D. Moreno-Martín (13917169), Moreno Martín, Diana, Arenas Martín, Ricardo, Gerdes, Axel, Rojo-Pérez, Esther   +20 more
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  

Geochronological and geochemical characteristics of the Dehzaman intrusive and volcanic rocks (NE Iran): Implication for a Cadomian magmatism [PDF]

, 2019
Cadomian magmatism is interpreted to indicate fragments of late Neoproterozoic-Early Cambrian continental arcs bordering the northern margin of Gondwana.
Hajimirzajan, H., Shari, M. R. H., Shafaroudi, A. M., Homam, S. M., Santos, José Francisco   +4 more
core   +1 more source

First evidence for the subduction initiation and boninitic magmatism from the Armutlu Peninsula (NW Turkey): geodynamic significance for the Cadomian magmatic arc system of the Gondwanan margin

, 2021
The Cadomian Orogeny was active along the northern margin of Gondwanaland during the Late Neoproterozoic–Early Cambrian period. Remains of this orogenic activity are traced from Western Europe to the Himalayas, including some metamorphic basement rocks ...
Namık Aysal (4325140), Özge Karslıoğlu (11553602), Zeynep Özbey (2840903)   +2 more
core   +2 more sources