Thesis Collection
Last Deposit
Browsing Geogaceta -- Nº 17, (1994) by Title
Now showing items 1-20 of 41
-
Alineaciones de centros volcánicos en la isla de Tenerife
(Sociedad Geológica de España, 1994)A mathematical method has been used to determine the alignments of effusive centers in the Recent Series of the Tenerife island. The strike of these lineations varies from one sector to another, in this way, on the ... -
Aminocronología de los depósitos del Pleistoceno Medio de Redueña (Madrid)
(Sociedad Geológica de España, 1994)This paper deals with Redueña alluvial fan deposits amino acid (aspartic acid and leucine ) racemization dating. Redueña deposits and faunal and archaeological Middle Paleolithic remains can be correlated with the 8th ... -
Análisis cuantitativo de los foraminíferos planctónicos del Paleoceno en Zumaya: implicaciones paleoambientales y eventos paleoceanográficos
(Sociedad Geológica de España, 1994)Quantitative analysis of Paleocene planktic foraminifera at the Zumaya section indicates that this area belonged to temperate waters, as suggested by an average of 34.1% low latitude species. Three relatively warmer intervals ... -
Consideraciones sobre la recarga en el Karst a través del estudio de las filtracciones en cuevas
(Sociedad Geológica de España, 1994)In the present paper we study the percolation in the karst as per the stalactites hydrographic analysis. We analyse some ofthe mechanisms related to infiitrattion, taking Into account the observations obtained in several ... -
Controles alocíclicos en el relleno sedimentario de una cuenca Paleógena: arquitectura deposicional del Grupo Cornudella, Cuenca del Ebro (Tarragona)
(Sociedad Geológica de España, 1994)The non-marine Cornudella Group (Thanetian-Bartonian) is constituted by different lithostratigraphic units. La Morera Formation is characterized by mudstones deposited in lacustrine and palustrine environments. The Ulldemolins ... -
Critica del estratotipo puro
(Sociedad Geológica de España, 1994)Natural history was pervaded by platonic (typological) thinking in its origins. Now, biology and geology, its descendent disciplines, have sometimes the trace of such philosophical foundation. The stratotype definition ... -
Distribución y geometría del relleno sedimentario Neógeno y Cuaternario de la Fosa del Baix Ebre, Tarragona
(Sociedad Geológica de España, 1994)The Baix Ebre graben constitutes a small part of the western Mediterranean graben system related with the western European rift which is superimposed to the Alpine structural trend, in the Baix Ebre graben other small ... -
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 ... -
El Devónico al sur de Cabeza del Buey (provincias de Badajoz y Córdoba, España)
(Sociedad Geológica de España, 1994)The Devonian rocks (mainly of Frasnian age) of the northern limb of Los Pedroches Syncline, near the Cabeza del Buey-Belalcazar road, show some differences with those of neighbourin synclines. The Abulagar Formation ... -
El drenaje subterráneo de la cordillera Ibérica en la depresión terciaria del Ebro (sector Riojano)
(Sociedad Geológica de España, 1994)Along the contact between the Iberian Chain from the Ebro tertiary Basin takes place the regional groundwater flow discharge trhough the mesozoic carbonate rocks (Jurassic aquifer), in this work, it is shown the hydrogeochemical ... -
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 ... -
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, ... -
Evolución del sistema fluvial Jarama-Lozoya-Guadalix durante el Plioceno final y el Cuaternario
(Sociedad Geológica de España, 1994)This paper deals with the Jarama-Lozoya-Guadalix fluvial system evolution during the Pliocene and Pleistocene times. Duringt the Upper Pliocene and Lower Pleistocene time the Lozoya river was under incission and fluviokarst ... -
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 ... -
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 ... -
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 ... -
¿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 ... -
Fábricas cristalinas del yeso secundario de reemplazamiento de glauberita: aplicación en prospección de sulfato sódico
(Sociedad Geológica de España, 1994)Many sodium sulphate formations deposited during the Miocene in the sedimentary basins of the Iberian Peninsula are currently exposed to the weathering action on the surface or dose subsurface. A common replacement product ... -
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 ... -
Huellas de dinosaurios en el Jurásico superior de Ababuj (Teruel)
(Sociedad Geológica de España, 1994)A new dinosaur ichnological site located in the Upper Jurassic of Ababuj (Teruel, Spain) is described, it is formed by at least twenty oval-shaped and five tridactyl-shaped footprints preserved in mudstones with mudcraks, ...
