Thesis Collection
Last Deposit
Geogaceta -- Nº 17, (1994)
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Recent Submissions
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Structure, cinématique et chronologie des déformations dans la dorsale du Haouz (Rif, Maroc)
(Sociedad Geológica de España, 1994)The complex thrust-slice structure of the Haouz Mountains was formed during the Neogene in several phases, in which we recognize: a- Paroxysmal tectonic events, occurred in the Early Miocene, responsible of the formation ... -
Relación estructural entre los cuerpos peridotíticos situados al Norte y al Sur del Estrecho de Gibraltar
(Sociedad Geológica de España, 1994)The peridotite bodies of the Bedes and Rif, on either side of the Strait of Gibraltar, are intercaled among the highest units of the Alpujarride complex. Before Miocene times, they must have constituted an uitramaficsiab ... -
Registro metamorfico de alta presión-baja temperatura en la unidad de Jubrique e imbricaciones de Benarrabá (Cordillera Bético-Rifeña)
(Sociedad Geológica de España, 1994)The presence of carpholitep seudomorphs and the kyanite-chloritoid-chlorite association in the Jubrique unitphy/iites and in the Benarrabá imbrications indicates metam rphic conditions of T < 450º C and P> 8 Kb. This means ... -
Mise en evidence d'une structure diapirique déformée au niveau de la partie basale du Massif des Beni-Bousera (Rif interne, Maroc)
(Sociedad Geológica de España, 1994)La région basale du massif uitrabasique des Beni-Bousera correspond pétrographiquement à des lherzolites à spine/le avec des textures à gros grain et porphyrodastique à gros grain. Les données microstructurales et de ia ... -
Les failles normales a faible pendage du Rif interne (Maroc) et leur effet sur l'amincissement crustal du domaine D'Alboran
(Sociedad Geológica de España, 1994)Several low angle, shallow dippinng normal faults are described from the internal domaine of the Rif chain. They dip gently towards the Alboran sea and cause important omissions in the stratigraphictectonic pile. These ... -
Le Bassin pliocène intramontagneux de Tirinesse et son mode d'ouverture (Rif interne, Maroc)
(Sociedad Geológica de España, 1994)Tirinesse basin is opened by two NE-SW and NW-SE high angle normal fault systems. These contemporaneous faults belong to the iate-Piiocene rifting stage with bidirectional extensionai stress field -
La Sierra Alhamilla (Beticas orientales), una ventana extensional abierta en el basamento de la cuenca Miocena de Alboran
(Sociedad Geológica de España, 1994)The Alpujarride/Nevado-Filabride boundary exposed in the Sierra Alhamilla is a detachment fault belonging to the Fiiabres Extensional System (FES), a pronouncedly asymmetric system with a westsouthwestward transport ... -
La falla normal de bajo ángulo de Tejeda: un ejemplo de la deformación miocena en las Béticas centrales
Alonso Chaves, Francisco Manuel
; Orozco, Miguel; García Dueñas, V.; Mayoral Alfaro, Eduardo (Sociedad Geológica de España, 1994)
The existence of a major extensional fault in Sierra Tejeda, Central Betics, developed during the middle Miocene, is evidenced. The Tejeda, Venta de Palma, Bentomiz and Alcaiceria units make up the hanging-wall o f the ... -
La distension de L'Oligocène supérieur à Burdigalien dans les nappes Ghomarides (Rif interne septentrional, Maroc)
(Sociedad Geológica de España, 1994)The Ghomarides nappes are overlain by late OUgocene-eariy Burdigaiian moiassic deposits. These deposits show three successive extensional stages wich are oriented: 1- NE-SW during late Oligocene. 2- NW-SE duringAquitanian. ... -
Interference pattern of Miocene extensional systems in the Alpujarride Complex (N of Sierra Nevada, Betic Cordillera)
(Sociedad Geológica de España, 1994)During the Miocene rift in gof the Alboran Domain, various extensional systems developed. North of Sierra Nevada, in the Sierra de Baza region, two low-angle normal fault systems with subperpendicular extension directions, ... -
High-pressure, low-temperature metamorphism in the Sebtides nappes, northern Rif, Morocco
(Sociedad Geológica de España, 1994)On the southern bank of the Gibraltar strait, the Permian-Triassic phyllites of the Sebtides-Alpujarrides nappes yielded edogite and biueschist-fades relic assemblages. The various metamorphic units are juxtaposed through ... -
¿Existe un cuerpo peridolítico entre dos fallas extensionales en el margen noroccidental del Mar de Alborán?
(Sociedad Geológica de España, 1994)An analysis of multichanell seismic reflection profiles leads to define the main extensional features in the nortwestern margin of the Alboran Sea. Two strong (high amplitude) characteristic reflectors have been interpretated ... -
Evolution tectono-séd i mentai re alpine autour de l'Arc de Gibraltar et mise en évidence de la cinématique de remontée d'un dôme de l'Asténosphère depuis le Jurassique jusqu'au Néogène
(Sociedad Geológica de España, 1994)The peridotites of the betico-rifain internal zone can be explained by the rise again of the subcrustal domein the old Alboran slab. The tectono sedimentary evolution of rifa in internal and external zone, respectively at ... -
Evolution Néogène du bassin de Tétouan-Martil, Rif septentrional, Maroc
(Sociedad Geológica de España, 1994)Tetouan-MartHpost-nappes basin is opened by two rifting stages: the first in late Oligocene-Burdigalian times, is accompanied by ductile normal faults in Aquitanian-Burdigalian rocks; the second of post Burdigaiian and ... -
Evolución rotacional de las Béticas externas occidentales a partir de estudios paleomagnéticos
(Sociedad Geológica de España, 1994)A paleomagnetic study in Upper Jurassic limestones from the Western Subbetics indicates that these rocks have undergone a widespread and pervasive remagnetization during the Neogene. The original primary Jurassic magnetization ... -
Estructuras de deformación en sedimentos del Cuaternario reciente de la cuenca del Bajo Segura. (Alicante). Discusión sobre su posible origen sísmico
(Sociedad Geológica de España, 1994)Aiming at recognizing the prints in the most recent sedimentary record due to earthquakes, able to develop liquefaction and fluidization in sediments (magnitude equal to or more than 5), we have studied eight boreholes, ... -
Estructura profunda del sector central de las Cordilleras Béticas
(Sociedad Geológica de España, 1994)The analysis of the crustal structure of the central sector of the Betic Cordilleras, by means of deep reflection seismic profiles and gravimetry, shows that the Moho is nearly planar. The continental crust of the Iberian ... -
El despegue extensional de Lahsene y los jirones de serpentinitas del anticlinal de Taryat (Melilla, Rif)
(Sociedad Geológica de España, 1994)The Taryat anticline, between Melilla and the Cabo Tres Forcas, folds an extensional detachment fault with SW transport sense. The fault is sealed by Tortonian marine sediments that were also folded. The hanging wall of ... -
Yacimientos de vertebrados en los materiales Paleógenos de la zona de Ulldemolins y Conca de Barbera, (Cuenca del Ebro, Tarragona): significado Estratigräfico
(Sociedad Geológica de España, 1994)The Ulldemolins Complex, which is characterized by different lithotypes, contains several types of fossil remains such as ostracoda, gastropoda, charophyta and micromammalia. This fossil association suggests that the Complex ... -
Unidades tectosedimentarías y rupturas en la Cuenca de Lorca (Murcia)
(Sociedad Geológica de España, 1994)The complementary use of the mineralógical and tectosedimentary analysis has allowed to establish five tectosedimentary units (TSU) in the Lorca Basin dated from the upper Burdigalian to the Pliocene. They were originated ...
