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Browsing by Subject "Cretaceous"
Now showing items 1-20 of 32
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El Albense-Cenomanense del Pto. del Remolcador (Cordillera Ibérica, Maestrat, Castelló): secuencias deposicionales y biozonación con grandes foraminíferos
(Sociedad Geológica de España, 1993)Preliminary results of micropa/eontological and sequential studies of the thickest and most marine A/bian-Cenomanian series in the Iberian Ranges are presented. Numerous larger foraminifera indicate Late Albian, Vraconian ... -
Análisis electrosecuencial: un ejemplo en el sondeo Vildé (Soria)
(Sociedad Geológica de España, 1994)Electrosequential analysis of logs from Vildé well (Soria) allows the identification of the lithostratigraphic units defined by Vilas et al., 1982, for the Upper Cretaceous of the Iberian Ranges. The data were used in a ... -
Análisis estructural de los surcos periféricos del diapiro de Murguía (Alava, Cuenca Vasco-Cantábrica)
(Sociedad Geológica de España, 2003)Structural analysis of the eastern sector of the Murguia diapir permits to disclose and map a number of geological structures related to the middle to late Cretaceous evolution of the diapir. These structures, not described ... -
Aportaciones al conocimiento de la Bioestratigrafía del tránsito Aptiense-Albiense en las Cordilleras Béticas. Prebético de Alicante
(Sociedad Geológica de España, 1996)The study of the sediments of the Aptian-Albian boundary in the N£ of the Alicante region (Prebetic ZoneI has revealed a biostratigraphic distribution of benthic foraminifera different from that observed in other more ... -
Contribución al conocimiento de la geología del depósito de Au-Cu de "La Pava" (Península de Azuero, Panamá)
(2009)The «La Pava» Au-Cu deposit is hosted by a vulcanosedimentary sequence, named Ocú Formation, developed in an island arc environment that resulted from the subduction of the Nazca Plate beneath the Caribbean Plate during ... -
Dinosaurios dromeosaúridos (Saurischia: Theropodo) en el Barremiense Superior (Cretácico Inferior) de Castellote,Teruel
(Sociedad Geológica de España, 1997)Discoveries of isolated teeth of dromeosaurid (theropod) dinosaurs from the Upper Barremian of Spain, provided the first evidence that the range of dromeosaurid extended to southern Europe in the Lower Cretaceous. We report ... -
Distribución estratigráfica de los episodios volcánicos submarinos del Albiense-Santoniense en la Cuenca Vasca (sector Gernika-Plentzia, Bizkaia)
(Sociedad Geológica de España, 1997)In the central domain of the Basque-Cantabrian Basin (Gernika-Plentzia sector) it has been characterized seven volcanic episodes, framed in the cretaceous alkali basaltic eruptive period. These comprise sheet lavas, pillow ... -
El anticlinal de Muel-Jaulín (Zaragoza) y su relación con la extensión cretácica
(Sociedad Geológica de España, 1997)The Muel-Jaulin region shows structures related to the Lower Cretaceous extension and the Tertiary compression respectively. Cretaceous normal faults constitute the northern border of the Aguilôn Cretaceous basin, appearing ... -
El paleokarst de Nazaré (Cretácico Superior de la Cuenca Lusitana, Portugal)
(Sociedad Geológica de España, 1997)In the Nazare region, (west Portuguese coast) there is an exceptionally well exposed paleokarst associated with the Upper Cenomanian carbonate succession and the overlying siliciclastics series of probable Turonian-Campanian ... -
Estratigrafía del Macizo del Montgrí
(Sociedad Geológica de España, 1996)The creiaceous carbonates forming the Montgri massif (Berriasian ? to Santonian) were deposited in the southern, marginal areas of the basin. As they sedimented in shallow platform environments, they were very sensible to ... -
Estratigrafía secuencial en el Cretácico del Prebético y del Golfo de Valencia a partir de sondeos profundos
(Sociedad Geológica de España, 1996)Surface and subsurface data obtained from Cretaceous platform facies at southeastern Spain have allowed the characterization of 55 System Tracts. The sedimentary architecture observed from the 27 Depositional Sequences ... -
Estructuración del basamento mesozoico en Los Llanos de Albacete
(Sociedad Geológica de España, 1987)The Mesozoic basement of Los Llanos de Albacete Tertiary Basin shows a fracture grid with two main orientations, almost orthogonal: NE-SW orientation is preferential, causing the basement to be divided in several blocks, ... -
Geoquímica microestructural en Praeradiolites ciryi (Hippuritacea, Bivalvia, Cretácico Superior de Gredilla de Sedaño, Norte de Burgos, España)
(Sociedad Geológica de España, 2003)The detailed geochemical evolution along two transects of the shell of one specimen of Praeradiolites ciryi is examined along annual, seasonal and fortnightly («doublet») sclerochronological records. The analyzed specimen ... -
Identificación de Tractos Sedimentarios en sedimentos pelágicos mediante métodos geoquímicos. Formación La Luna, Occidente de Venezuela
(Sociedad Geológica de España, 2005)An integrated study of the geochemistry, sedimentology and biostratigraphy of two outcrop sections of the La Luna Formation in Western Venezuela was carried out to determine the eustatic changes that influenced the ... -
Introducción al estudio de indicios manganesíferos, situados en las inmediaciones de Requena, País Valenciano
(Sociedad Geológica de España, 1994)Inside the sector of «Muntanya de Valencia» (Iberian Range), there are a number of Mn mineralizations. Some of these deposits have been explored for mining. In every case there are paleokarst mineralizations which have ... -
Las espesartitas, camptonitas y bostonitas del complejo intrusivo de Aiguablava (Cadenas Costeras Catalanas): cartografía y composición
(2009)The lower Permian Hercynian Aiguablava leucogranite (288 Ma) is intruded by a dense vertical dyke swarm and a few subhorizontal dykes that fill several joint systems developed during the crystallization and cooling of ... -
Latitudinal variation in the K/T event: inferences from planktic foraminifera
(Sociedad Geológica de España, 1996)Un análisis comparativo de diferentes secciones del límite Cretácico/Terciario (K/T) muestra una clara diferencia latitudinal en Ja sucesión de eventos paleoecológicos y paleoclimáticos durante el tránsito K/T. Así, se ... -
Microfades del Cretácico medio y superior de la Sierra de Chiapas (SE México)
(Sociedad Geológica de España, 1996)Based on the micropaleontologic study of the carbonate rocks from the Sierra de Chiapas (SE Mexico) ten microfacies are recognized. They correspond mainly to shallow carbonates with some deeper environments toward the top ... -
Micropaleontología, Cronoestratigrafía y Sedimentología del límite Cretácico/Terciario en el NO de Cuba
(Sociedad Geológica de España, 2002)Several sections have been studied in western Cuba in order to date the sediments derived of the nearby Yucatan meteorite impact event. The sections of Peñalver, Minas, La Victoria, La Yuca, Santa Isabel, Cacarajicara and ... -
Mineralogía y estratigrafía de los materiales terrígenos del Cretácico superior en la sección de Arrebatacapas (Torrelaguna, Madrid)
(Sociedad Geológica de España, 2001)A mineralogical analysis of the Upper Cretaceous terrigenous sediments in the Arrebatacapas section has been carried out. This study describes the compositional changes along the section and the relationships between ...
