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Showing 1 to 11 of 11 for “"Forearc basin"”.
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Analysis of the central Hawke's Bay sector of the Late Neogene forearc basin, Hikurangi margin, New Zealand
Hawke's Bay province lies within an extensive forearc basin in eastern North Island, New Zealand, that developed during the Late Miocene to present. An area of about 5 700 kmsup2; in central Hawke's Bay has been geologically mapped at 1:50 000 scale as part of an analysis of the Late Miocene-Early …
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Tectonostratigraphic evolution of the Sinu accretionary prism and Lower Magdalena forearc basin formed above a shallow-dipping subduction zone, Caribbean margin of Colombia
… overlying deep (8-9 km) and wide (150-200 km) forearc basin (Lower Magdalena basin, LMB). Based on 29000 earthquake relocations, interpretations of ~1200 km of offshore deep-penetration seismic reflection lines recorded to depths of 20 km along with coincident gravity models, and 7000 km2 of …
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Offshore El Salvador: the first interpretation of a unique 2-D seismic dataset and implications for a working petroleum system in a forearc basin setting
The unexplored Acajutla Basin is located within a forearc setting along the Pacific coast of El Salvador. It is a part of a larger system of forearc basins that lie between the coast of Central America and the Middle America Trench, running parallel to the Pacific coastline from central Mexico to …
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Past And Present Hydrogeology Of The Atacama Desert, Northern Chile: Human And Natural System Interactions
… of the northern portion of the Chilean forearc basin. During the Late Miocene and Early Pliocene, before the forearc basin was deeply incised, a lake existed in the western part of the forearc basin. New 40Ar/39Ar ages of volcanic ashes intercalated with lake and overlying fluvial …
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Cenozoic stratigraphic and tectonic history of the Grenada and Tobago basins as determined from marine seismic data, wells, and onland geology
… and tectonic evolution of the Grenada and Tobago basins using multi-channel seismic data collected in May, 2004, (BOLIVAR cruise), along with GULFREX seismic data collected by Gulf Oil Company in 1975. These reflection data, combined with UTIG OBS refraction data also collected with the BOLIVAR …
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Paleocene Turbidite Deposition in the Central American Seaway (NW Costa Rica): Geochemical Analysis and Provenance of Detrital Spinel and Clinopyroxene
… coast of Costa Rica next to the Sandino forearc basin. This study focuses on the origin and provenance of the Paleocene deep water Rivas and Descartes turbidites that crop out on the northern part of the Santa Elena peninsula in northwestern Costa Rica. Understanding the sedimentary fill …
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Correlation and Paleoenvironments above West T9.3 Tuff, Pisco Formation, Peru
<p>The Pisco Basin is a Cenozoic forearc basin in west central Peru. Though outcrops are well exposed, contain little diagenetic overprint, or complex structural deformation, only rudimentary correlations between outcrops are published and no attempts have been made to define time-bounded subunits. …
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Sediment Heterogeneity and Sand Production in Gas Hydrate Extraction: Daini-Atsumi Knoll, Nankai Trough, Japan
… structural high on the outer ridge of the Kumano forearc basin, offshore Japan. Hydrate saturations of 50 to 80 % occur within three geological units of the Middle Pleistocene Ogasa group. This group is made up of deep water sediments including sediment gravity flow deposits distinguished by …
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Sedimentpetrographische, mineralchemische und geochronologische Untersuchungen am Detritus neoproterozoischer und devonischer Siliziklastika im westlichen Südural
… the collisional accretionary prism and the forearc basin during exhumation of high pressure rocks.
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Petrogenesis of Pliocene limestones in southern Hawke’s Bay, New Zealand: a contribution to unravelling the sequence stratigraphy and diagenetic pathways of cool-water shelf carbonate facies
… and formed in shoal areas about the margins of a forearc basin seaway adjacent to the convergent Pacific-Australian Plate boundary. Because of the dynamic tectonic setting, which led to narrowing and shallowing of the host basin over time, the studied carbonates exhibit a variety of sedimentary …