Now showing items 21-30 of 317
Tertiary geology of the Quebrada Huaricangana area, East Pisco Basin, southern Peru: Late Paleogene to Neogene transgressive sedimentation within a forearc basin
Clastic packages studied in the southern East Pisco Basin represent the transgressive Late Eocene to earliest Oligocene Paracas Group, with questionable presence of the latest Oligocene to Early Miocene Chilcatay formation. ...
Tectonic and sedimentary evolution of the Bransfield Basin, Antarctica
Application of sequence stratigraphy to seismic reflection profiles from the Bransfield Basin indicates that this modern back-arc basin formed in response to cessation of subduction at the South Shetland trench at 4 Ma. ...
Automatic characterization of the spatial statistics of topography using geostatistical methods
An automatic geostatistical method of analyzing spatial characteristics of topography is presented. Anisotropy in spatial continuity is modeled by estimating the range of the directional semivariograms. Spatial characteristics ...
Kinematic analysis of the deformational structures on eastern Isla de Margarita, Venezuela
Because of its strategic location at the intersection of three regional trends, a kinematic study of the deformation on Isla de Margarita was undertaken to provide additional constraints for Caribbean plate tectonic models. ...
Petrogenesis of plutons and hypabyssal rocks of the Bering Strait region, Chukotka, Russia
Subduction of an oceanic plate beneath the Bering Strait region resulted in the formation of an extensive magmatic belt along the margin of the region during the Cretaceous. Plutons and gneiss domes of this age are broadly ...