Search results for "Infralittoral prograding wedge"

showing 3 items of 3 documents

Seismic stratigraphy of the north-westernmost area of the Malta Plateau (Sicily Channel): The Middle Pleistocene-Holocene sedimentation in a tidally …

2022

In this study we present the results of a seismic-stratigraphic analysis of sub-bottom profiles in the north-westernmost area of the Malta Plateau in order to define the depositional mechanisms for the upper Quaternary sequences. During this interval the morphology of the Malta Plateau was characterized by a ramp and bathymetries not exceeding 200 m. Two major unconformities, related to MIS 6 and MIS 2 (the latter corresponding to the Last Glacial Maximum, LGM), characterize the upper Quaternary sequences. The geometries of the recognized seismic units indicate as depositional mechanisms were controlled by subsidence and sea-level fluctuations. In detail, deposits related to the last glacia…

QuaternaryGeochemistry and PetrologySand sheetSand sheet; Infralittoral prograding wedge; Bedforms; Coastal dune system; Malta Plateau; QuaternaryGeologyCoastal dune systemBedforms Coastal dune system Infralittoral prograding wedge Malta Plateau Quaternary Sand sheetOceanographyBedformsMalta PlateauInfralittoral prograding wedge
researchProduct

Pattern and rate of post-20 ka vertical tectonic motion around the Capo Vaticano Promontory (W Calabria, Italy) based on offshore geomorphological in…

2014

The magnitude and rate of Late Pleistocene-Holocene vertical tectonic movements offshore of the Capo Vaticano Promontory (western Calabria, southern Italy) have been measured on the basis of the present-day depth variations of the edges of submerged depositional terraces (and associated abrasion platforms) that formed below the storm-wave base, during the sea level stillstand of the Last Glacial Maximum (LGM). These depositional features, represented by submerged prograding wedges and an associated terrace-shaped upper boundary, have been identified in high-resolution seismic reflection profiles acquired along the continental shelf and the upper slope of the promontory, and are referred to …

geographyPromontorygeography.geographical_feature_categoryPleistoceneSettore GEO/02 - Geologia Stratigrafica E SedimentologicaContinental shelfSettore GEO/03 - Geologia StrutturaleAbrasion platformInfralittoral Prograding Wedge; Abrasion platform; Last Glacial MaximumCalabriaCapo Vaticano Calabria Infralittoral Prograding Wedge; Abrasion platform; Last Glacial Maximum Vertical movementsLast Glacial MaximumCapo Vaticano Calabria Infralittoral Prograding WedgeCapo VaticanoVertical movementsSedimentary depositional environmentTectonicsLast Glacial Maximum Vertical movementsGeomorphologyGeologyHoloceneSea levelEarth-Surface Processes
researchProduct

Pattern and rate of post-20 ka verticaltectonic motion around Capo Vaticanopromontory (W Calabria, Italy) based onoffshore geomorphological indicators

2013

The magnitude and rate of Late Pleistocene – Holocene vertical tectonic movements offshore Capo Vaticano (western Calabria) have been quantified on the basis of the depths of infralittoral prograding wedges (IPWs) and associated abrasion platforms formed during the stillstand of the Last Glacial Maximum (LGM). These features were identified on high-resolution reflection seismic profiles acquired along the continental shelf and upper slope around the promontory. The pattern of vertical movements of the Capo Vaticano promontory is characterized by a marked asymmetry associated with a NE-directed tilt. Removal of the non tectonic component of vertical changes using an ice-volume equivalent eus…

Last Glacial Maximum.Capo Vaticano Infralittoral Prograding Wedge
researchProduct