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Browsing by Subject "Aptian"
Now showing items 1-16 of 16
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Bioestratigrafía del Aptiense del macizo del Garraf (NE de la Península Ibérica)
(2006)Six aptian biozones have been recognized by studing the ammonite fauna of Garraf massif: D. weissi, D. deshayesi, D. furcata, E. subnodosocostatum, P. melchioris and A. nolani. The studied ammonoid record is until now ... -
Carbonate platform margin facies evolution: the Aptian of Mundaka (Bizkaia, Northern Spain)
(Sociedad Geológica de España, 2019)Platform margin as well as foreslope settings are heterogeneous and constitute key elements to understand carbonate platform system dynamics. Aptian outcrop exposures along the Mundaka cliffs in the Basque-Cantabrian basin ... -
Correlación entre registros de sondeos y series de superficie del Aptiense-AIbiense continental del extremo SW de la Cuenca Vascocantábrica y su aplicación a la identificación de zonas lignitíferas
(Sociedad Geológica de España, 1991)Gamma-ray well logs of Aptian and Albian fluvial facies of Palencia, Cantabria and Burgos (SW Basque-Cantabrian Basin, N Spain), show serrated bell and funnel shaped patterns for the Utri/las Fm. and cylindrica/ shaped ... -
Disoluciones e incrustaciones ferruginosas asociadas al OAE 1a en la plataforma carbonatada de La Florida (NO de Cantabria)
(2008)The early Aptian succession of La Florida platform in northwestern Cantabria exhibits two stages of platform carbonates separated by a dissolution surface preceding the drowning of the platform. The dissolution surface ... -
Dolomías controladas por fracturas en carbonatos aptienses de la zona de Benicàssim (SE Cuenca del Maestrat): distribución y características petrograficas
(Universidad de Huelva, 2012)El estudio de dolomías se ha incrementado notablemente en la última década debido a la existencia de numerosos almacenes de petróleo en esta litología. Esta contribución presenta un nuevo ejemplo de dolomías controladas por ... -
El Aptiense de Lanestosa (Bizkaia): implicaciones paleotectónicas
(Sociedad Geológica de España, 1997)The Aptian of Lanestosa is analyzed based on detailed mapping and facies analysis. Four sedimentary units are differentiated: a basal terrigenous unit and three overlying carbonate platform units. Units boundaries 2-3 and ... -
El Cretácico Inferior de la Sierra de Jódar-Bedmar (Prebético de Jaén, Cordillera Bética): facies, bioestratigrafía e interpretación paleoambiental
(Universidad de Huelva, 2012)El Prebético de Jaén está constituido por un conjunto de unidades tectónicas aisladas, compuestas principalmente por calizas del Cretácico Inferior. En este trabajo se analiza una de ellas, la Sierra de Jódar-Bedmar. ... -
Etapas de formación de dolomías masivas del entorno de La Florida-El Soplao, Cantabria
(2009)Dolomitization played a very important role in producing porosity within the Late Aptian shallow marine carbonates hosting the El Soplao Cave and La Forida mine deposit. A detailed petrographic study of samples from a ... -
Evolución diagenética de la plataforma carbonatada Aptiense superior del sector Benicàssim-Orpesa. Cuenca del Maestrat. Cadena Ibérica
(2006)The upper Aptian carbonate platform of Benicàssim-Orpesa area contains reefal facies that are affected by a complex diagenetic evolution including: (1) Calcite 1, (2) Calcite 2, (3) Calcite 3, (4) Silica and dolomite, and ... -
Facies analysis and stratigraphy of a lower Aptian carbonate platform section (Prebetic, Alicante, Spain)
(Sociedad Geológica de España, 2018)In the Racó Llobet section (Sierra Mariola, Prebetic of Alicante) crops out the Llopis Formation, dated as lower Aptian (lower Bedoulian). Six types of facies have been recognized: 1) orbitolinite facies (packstone ... -
Las facies de las plataformas de carbonatos del Aptiense-Albiense al NE de la provincia de Alicante. Zona Prebética, SE de España
(Sociedad Geológica de España, 1994)The study of several sections on platform limestones of Aptian-Albian age in SE Spain (Alicante province) has pointed out a rich variety of facies. The analysis of facies and their relationships has led us to reconstruct ... -
La plataforma urgoniana aptiense del sur de Bilbao (valle de Bolintxu): organización estratigráfica y evolución
(2009)An Aptian rudist limestone unit, up to 200m thick and extending more than 3km, lies 2km to the south of Bilbao. The stratigraphy and mapping of the limestones in the Bolintxu valley reveal diachronous lower and upper ... -
La transgresión Aptiense en la Sierra de Segura (Zona Prebética, provincia de Jaén)
(Sociedad Geológica de España, 2002)The cretaceous successions of the Prebetic; deposited on the Southern Iberian Continental Margin, record the later part of a rifting stage (Oxfordian to early Albian). The northern part of the sierra de Segura (jaén province, ... -
Ostreidos de la Unidad de Sopuerta (límite Aptiense inferior/ superior; Cuenca Vasco Cantábrica): estudio geoquímico y diagenético
(2009)The realization of geochemical and diagenetical studies on fossil oyster’s shells from the «Calizas Nodulosas con Ostreidos y Limolitas de Sopuerta unit» has allowed demonstrating the variations in the luminescence ... -
Registro del evento anóxico oceánico OAE1a (Aptiense inferior) en un contexto de plataforma. Prebético (provincia de Alicante)
(Sociedad Geológica de España, 2006)The Early Aptian was a time of major global events, being probably the most notable the Oceanic Anoxic Event 1a. In this paper, we present the study of the record of the OAE1a in a platform setting, the Prebetic Zone of ... -
Relaciones tectónica-sedimentación en el Aptiense de Sierra Larga, Jumilla (Murcia)
(Sociedad Geológica de España, 1996)Aptian shallow water carbonates of the Sierra Larga antiform (Prebetic of Murcia) show rapid vertical and lateral facies and thickness variations with well defined sequences. Each sequence consists of a lower terrigenous ...
