Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Juan Gómez Barreiro"'
Publikováno v:
Geogaceta, Vol 71 (2022)
Slates are low-grade metamorphic rocks characterized by an alignment of the phyllosilicates, resulting in the development of a marked foliation. A consequence of this is a strong directional dependence of their elastic properties, which are tightly b
Externí odkaz:
https://doaj.org/article/864ede2554c944249a34595749e045e2
Autor:
Irene Pérez Cáceres, Irene DeFelipe, Puy Ayarza, Juan Gómez Barreiro, Helena Sant’Ovaia, Cláudia Cruz, Maria dos Anjos Ribeiro, Juan José Villalaín, Manuela Durán Oreja, José Ramón Martínez Catalán
The Iberian Massif presents a complex Late Paleozoic evolution, with intense compressional tectonics followed by gravitational collapse of the thickened crust and orocline development. In NW Iberia, extensional detachments and associated shear zones
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3b8a20e8ba8e1db2fb80c87f003803a
https://doi.org/10.5194/egusphere-egu23-9797
https://doi.org/10.5194/egusphere-egu23-9797
Autor:
Jérémie Malecki, Stephen Collett, José R. Martínez Catalán, Juan Gómez Barreiro, Karel Schulmann
The allochthonous complexes of the Galicia-Trás-os-Montes Zone (GTMZ) of the NW Iberian Massif consist of an ensemble of peri-Gondwanan terranes and ophiolitic units stacked during the Variscan orogeny. The Middle Allochthon also known as the ophiol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a06c05471a33940506852ba8ca96839
https://doi.org/10.5194/egusphere-egu23-8080
https://doi.org/10.5194/egusphere-egu23-8080
Autor:
Puy Ayarza, José Ramón Martínez Catalán, Juan Gómez Barreiro, Imma Palomeras Torres, Yolanda Sánchez Sánchez, Mercedes Rivero Montero
The Iberian Massif presents a geometry characterized by two oroclines: the conspicuous and tight Ibero-armorican arc to the north and the older and less pronounced Central Iberian Arc (CIA) to the south. The latter is clearly depicted by low amplitud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08076e63c4899828cc64a9517d19cbdb
https://doi.org/10.5194/egusphere-egu23-6391
https://doi.org/10.5194/egusphere-egu23-6391
Plastics stand out for being cheap, lightweight, easily moulded and highly endurance materials, hence used in a wide range of applications all around the planet. One of the reasons of the amazing durability is that common plastics are not biodegradab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f978fb8b77125838055085c78a834ddd
https://doi.org/10.5194/egusphere-egu21-15150
https://doi.org/10.5194/egusphere-egu21-15150
Autor:
Magdalena Tettamanti, Kelvin dos Santos Alves, Juan Gómez-Barreiro, Juan Morales Sánchez-Migallón, José Manuel Compaña Prieto, Santos Barrios-Sánchez, Inés Puente Orench
The origin of gold nuggets (Au‐Ag alloys) is not completely understood. They crop out in placer deposits, potentially derived from a primary source (hydrothermal/magmatic). Meteorization, erosion and transport of primary gold deposits result in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3dd980ac603a8635379bddae3ed49d9
https://doi.org/10.5194/egusphere-egu21-15930
https://doi.org/10.5194/egusphere-egu21-15930
Autor:
Juan Gómez Barreiro, Mercedes Suárez Barrios, Jeremi Malecki, Raúl Merinero Palomares, Santos Barrios, Juan Morales Sánchez-Migallón, Rafael Pablo Lozano Fernández, Kelvin dos Santos Alves
Gold placers are abundant and intensively surveyed in western Iberia since antiquity. Three Cenozoic gold placers covering Neoproterozoic-Lower Paleozoic basement rocks have recently been revealed, which stand out for the number and size of the sampl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a59eb60f245a0dcaca11729360d32d1e
https://doi.org/10.5194/egusphere-egu21-13358
https://doi.org/10.5194/egusphere-egu21-13358
Autor:
Inés Puente Orench, Magdalena Tettamanti, Manuela Durán Oreja, Santos Barrios Sánchez, Juan Morales Sánchez Migallón, Juan Gómez Barreiro, José R. Martínez Catalán, Jeremie Malecki
The NW Iberian Massif represents a segment of the Variscan Belt, where several allochthonous complexes crop out: : Cabo Ortegal, Ordenes and Malpica-Tuy, in Spain, and Bragança and Morais in Portugal. These allochthonous complexes comprise allochtho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12b38ecea982b67a3d7bf07512aeca79
https://doi.org/10.5194/egusphere-egu21-9986
https://doi.org/10.5194/egusphere-egu21-9986
Autor:
José Manuel Compaña Prieto, Kelvin dos Santos Alves, Raúl Merinero Palomares, Santos Barrios Sánchez, Juan Gómez Barreiro, Rafael Pablo Lozano Fernández
In this contribution we have investigated the Fresnedoso Quaternary gold placer (Western Spain), analyzing the morphotextural and microchemical evolution of gold particles. The statistical analysis has revealed the presence of two populations of part
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b011e32afe2ef474799db049e4996d8e
https://doi.org/10.5194/egusphere-egu21-12077
https://doi.org/10.5194/egusphere-egu21-12077
Autor:
José R. Martínez Catalán, Andreas Gärtner, Alejandro Díez Montes, Ícaro Dias da Silva, Emilio González Clavijo, Juan Gómez Barreiro, Mandy Hofmann, Gabriel Gutiérrez Alonso, Ulf Linnemann
The allochthonous complexes of Galicia – Trás-os-Montes Zone (NW Iberia) are part of the tectonic stack that unrooted the Variscan accretionary prism. They are formed by individual tectonic slices marked by specific tectono-metamorphic evolution,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::417e3d6d1b6d283a3e3709e60637f4bc
https://doi.org/10.5194/se-2020-173
https://doi.org/10.5194/se-2020-173