Search results for "Syncline"

showing 3 items of 13 documents

The Leiza palaeo-fault: Role and importance in the Upper Cretaceous sedimentation and palaeogeography of the Basque Pyrenees (Spain)

1999

Abstract New analysis of the Upper Cretaceous deposits of the Central Depression, a syncline within the Basque Pyrenees, shows that this structure was a deep marine basin analogous to the regional flysch troughs. It was bounded by active faults, including the Leiza palaeo-fault, which sustained erosion of the partly subaerially exposed margins. The Leiza palaeo-fault and its western counterpart, the Kalamua palaeo-fault, are thought to constitute the former plate boundary between Iberia and Europe, and a westward continuation of the North Pyrenean Palaeo-Fault.

geographyFlyschgeography.geographical_feature_categoryOcean EngineeringActive faultFault (geology)CretaceousPlate tectonicsPaleontologySedimentary rockSynclinePalaeogeographyEcology Evolution Behavior and SystematicsGeologyComptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science
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Influences of surface processes on fold growth during 3-D detachment folding

2014

In order to understand the interactions between surface processes and multilayer folding systems, we here present fully coupled three-dimensional numerical simulations. The mechanical model represents a sedimentary cover with internal weak layers, detached over a much weaker basal layer representing salt or evaporites. Applying compression in one direction results in a series of three-dimensional buckle folds, of which the topographic expression consists of anticlines and synclines. This topography is modified through time by mass redistribution, which is achieved by a combination of fluvial and hillslope erosion, as well as deposition, and which can in return influence the subsequent defor…

geographygeography.geographical_feature_categoryAnticlineFluvialGeometryFold (geology)GeophysicsGeochemistry and PetrologyFold and thrust beltSedimentary rockGrowth rateSynclineBuckleGeomorphologyGeologyGeochemistry, Geophysics, Geosystems
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Tectono-stratigraphic evolution of a basin generated by transpression: the case of the Early Pliocene Lascari Basin (northern Sicily)

2011

Integrated stratigraphy and structural analysis carried out in the Madonie Mts. (Northern Sicily) is aimed to the description of a syn-sedimentary tectonic event, recorded in a small infra-pliocene basin restricted to the Lascari Syncline core. The onset and evolution of the basin was driven by transpressive tectonics, generating a lens-shaped, deep and narrow tectonic depression, bounded by steep and high, tectonically controlled slopes, also reflected in the present-day topography of the area. During the genesis of the basin, the tectonic control interferes with a dramatic sea level oscillation during the Messinian-Early Pliocene time interval. In this paper, the syn-tectonic deposits of …

geographygeography.geographical_feature_categorytranspressive basin Lower Pliocene syn-sedimentary tectonics SicilySettore GEO/02 - Geologia Stratigrafica E SedimentologicaGeologyStructural basinTranspressionTectonicsPaleontologyStratigraphysyn-sedimentary tectonics transpression Sicilysyn-sedimentary tectonicsFold and thrust beltBrecciaEarly Pliocene syn-sedimentary tectonics transpression SicilyGeneral Earth and Planetary SciencesSedimentary rockSynclineSicilyGeologytranspression
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