Search Results - "Álvaro, J. Javier"

Cambrian syn‐rift tectonic pulses at unconformity‐bounded carbonates in the Avalon Zone of Newfoundland, Canada by Álvaro, J. Javier

“…In the Avalon Zone of SE Newfoundland, several Terreneuvian to Cambrian Series 2 carbonate bodies occur associated with paraconformities and onlapping…”
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Deciphering the Sardic (Ordovician) and Variscan deformations in the Eastern Pyrenees, SW Europe by Puddu, Claudia, Álvaro, J. Javier, Carrera, Núria, Casas, Josep Maria

“…Detailed geological mapping of the La Cerdanya area (Canigo unit, Eastern Pyrenees) provides new data characterizing the different structural styles exhibited…”
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Glendonite occurrences in the Tremadocian of Baltica: first Early Palaeozoic evidence of massive ikaite precipitation at temperate latitudes by Popov, Leonid E., Álvaro, J. Javier, Holmer, Lars E., Bauert, Heikki, Ghobadi Pour, Mansoureh, Dronov, Andrei V., Lehnert, Oliver, Hints, Olle, Männik, Peep, Zhang, Zhifei, Zhang, Zhiliang

“…The Tremadocian (Early Ordovician) is currently considered a time span of greenhouse conditions with tropical water surface temperature estimates, interpolated…”
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Submarine metalliferous carbonate mounds in the Cambrian of the Baltoscandian Basin induced by vent networks and water column stratification by Álvaro, J. Javier, Holmer, Lars E., Shen, Yanan, Popov, Leonid E., Ghobadi Pour, Mansoureh, Zhang, Zhifei, Zhang, Zhiliang, Ahlberg, Per, Bauert, Heikki, González-Acebrón, Laura

“…Two massive precipitation events of polymetallic ore deposits, encrusted by a mixture of authigenic carbonates, are documented from the Cambrian of the…”
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The oldest echinoderm faunas from Gondwana show that echinoderm body plan diversification was rapid by Smith, Andrew B., Zamora, Samuel, Álvaro, J. Javier

“…The oldest echinoderm faunas have previously been restricted to North America and had a radiate body plan. This discovery of echinoderms from Morocco reveals a…”
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Neoproterozoic–Cambrian stratigraphic framework of the Anti-Atlas and Ouzellagh promontory (High Atlas), Morocco by Álvaro, J. Javier, Benziane, Fouad, Thomas, Robert, Walsh, Gregory J., Yazidi, Abdelaziz

“…[Display omitted] •Rift-to-Pan-African orogeny and aftermath – Neoproterozoic and Cambrian stratigraphy.•Lkest-Taghdout, Iriri, Bou Azzer and Saghro…”
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Cadomian volcanosedimentary complexes across the Ediacaran–Cambrian transition of the Eastern Pyrenees, southwestern Europe by Padel, Maxime, Álvaro, J. Javier, Casas, Josep Maria, Clausen, Sébastien, Poujol, Marc, Sánchez-García, Teresa

“…The volcanism hosted by the Ediacaran–Terreneuvian Canaveilles Group of the Eastern Pyrenees displays two distinct geochemical affinities: (1) metabasites of…”
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Sublacustrine hydrothermal seeps and silicification of microbial bioherms in the Ediacaran Oued Dar'a caldera, Anti‐Atlas, Morocco by Álvaro, J. Javier, González‐Acebrón, Laura

“…This paper presents a case study of the sublacustrine precipitation of hydrothermal silica ± TiO2 in the Ediacaran Mançour Group of the Saghro inlier,…”
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Advances in the Lower Ordovician of the western Iberian Chain, NE Spain by Alvaro, J. Javier, Ma

“…The western Iberian Chain of NE Spain represents a lateral prolongation of the West Asturian-Leonese Zone. As other proximal sectors fringing NW Gondwana, the…”
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The Furongian break-up (rift/drift) unconformity in the central Anti-Atlas, Morocco by Alvaro, J. Javier, Vizcaino, Daniel

“…This paper presents a stratigraphic, sedimentological and palaeontological study of the Cambrian–Ordovician transition in the central Anti-Atlas in order to…”
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Early Palaeozoic geodynamics in NW Gondwana by Álvaro, J. Javier, Casas, Josep Maria, Clausen, Sébastien, Quesada, Cecilio

“…During Ordovician times, the northwestern margin of Gondwana, in a transect linking the Anti-Atlas, the western and eastern branches of the Ibero-Armorican Arc…”
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Comparative geochemical study on Furongian–earliest Ordovician (Toledanian) and Ordovician (Sardic) felsic magmatic events in south-western Europe: underplating of hot mafic magmas linked to the opening of the Rheic Ocean by Álvaro, J. Javier, Sánchez-García, Teresa, Puddu, Claudia, Casas, Josep Maria, Díez-Montes, Alejandro, Liesa, Montserrat, Oggiano, Giacomo

“…A geochemical comparison of early Palaeozoic felsic magmatic episodes throughout the south-western European margin of Gondwana is made and includes…”
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The Sardic unconformity and the Upper Ordovician successions of the Ribes de Freser area, Eastern Pyrenees by Puddu, Claudia, Álvaro, J. Javier, Casas, Josep Maria

“…The Ribes de Freser area of the Eastern Pyrenees is characterized by an Alpine antiformal stack that comprises the so-called El Baell and Bruguera…”
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Early Neoproterozoic rift-related magmatism in the Anti-Atlas margin of the West African craton, Morocco by Álvaro, J. Javier, Pouclet, André, Ezzouhairi, Hassan, Soulaimani, Abderrahmane, Bouougri, El Hafid, Imaz, Andrés Gil, Fekkak, Abdelilah

“…•A Cryogenian tholeiitic magmatism is identified in the Anti-Atlas margin of the West African craton.•Magmatism is representative of a rifting phase derived…”
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The role of abiotic factors in the Cambrian Substrate Revolution: A review from the benthic community replacements of West Gondwana by Álvaro, J. Javier, Zamora, Samuel, Clausen, Sébastien, Vizcaïno, Daniel, Smith, Andrew B.

“…The Cambrian Substrate Revolution refers to a substantial and “rapid” change to the nature of marine sedimentary substrates in the early Cambrian and is widely…”
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Cadomian metabasites of the Eastern Pyrenees revisited by Pujol-Sola, Nuria, Casas, Josep Maria, Proenza, Joaquin A, Blanco-Quintero, Idael F, Druguet, Elena, Liesa, Montserrat, Roman-Alpiste, Manuel J, Alvaro, J. Javier

“…This study presents a new geochemical, petrological, and geochronological U–Pb dataset from Ediacaran metabasites of the Canigó and Cap de Creus massifs,…”
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Replacement of benthic communities in two Neoproterozoic–Cambrian subtropical-to-temperate rift basins, High Atlas and Anti-Atlas, Morocco by Clausen, Sébastien, Álvaro, J. Javier, Zamora, Samuel

“…[Display omitted] •Atlas Rift triggered the diachronic record of the ‘Cambrian explosion’.•Microbial consortia dominated (peri-) reefal ecosystems after…”
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Cambrian trilobites from the Huérmeda Formation (Iberian Chains, north‐east Spain) and the inadequacy of the Marianian Stage by Álvaro, J. Javier, Esteve, Jorge, Gracia, Fernando, Zamora, Samuel, Zhang, Xi‐Guang

“…A taxonomic study of the trilobites found in the Marianian parastratotype of the Iberian Chains, north‐east Spain, results in the recognition of the new…”
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Colour banding in a latest Neoproterozoic–Cambrian microbially variegated sabkha of the Taoudeni Basin, Adrar of Mauritania by Alvaro, JJavier

“…The Taoudeni Basin is a large intracratonic trough located in the West African craton, with more than 2km of Neoproterozoic–lower Palaeozoic sedimentary…”
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First reported Late Ordovician trilobites from the High Zagros Ranges, Iran: A biogeographic link between Gondwanan Chinese and Mediterranean faunas by Ghobadi Pour, Mansoureh, Ghavidel-Syooki, Mohammad, Álvaro, J. Javier, Popov, Leonid E., Ehsani, Mohammad H.

“…The study of the Upper Ordovician in the Faraghan Mountains, southeastern Iran, reveals for the first time the presence of a low-diversity trilobite fauna in…”
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