Abstract The evolution and resulting morphology of a contourite drift system in the SE Pacific oceanic basin is investigated detail using seismic imaging an age-calibrated borehole section. Nazca Drift System covers area 204 500 km 2 stands above abyssal basins Peru Chile. spread along Ridge water depths between 2090 5330 m. was drilled at Ocean Drilling Program Site 1237. This deep-water overl...

Subducted sediment plays a key role in modulating pore pressure and seismic behavior at subduction zones. We investigated the character of incoming sediments to test how basement variations relate along-strike changes within accretionary prism plate boundary conditions Nankai Trough. High-resolution data reveal for first time presence countourite mounded drifts Shikoku Basin. These features hav...

The Late Oligocene to Recent Canterbury Drifts were deposited in water depths between c. 400 and c. 1500 m by northward-flowing, cold, intermediate-depth water masses: Subantarctic Mode Water (SAMW), Antarctic Intermediate Water (AAIW) and their predecessor current flows. Drift accumulation started at c. 24 Ma, fed by terrigenous sediment derived from the newly rising Alpine Fault plate boundar...

Isolated, detached sands provide opportunities for large-volume stratigraphic traps in many deepwater petroleum systems. Here we a review of the different types sandbody detachments based on published data from modern-day seafloor and recent (generally Quaternary-present), shallow-buried strata. Detachment mechanisms can be classified their timing formation relative to deposition as well proces...

Abstract Oceanic gateways have modulated ocean circulation and influenced climatic variations throughout the Earth´s history. During late Miocene (7.8–7.35 Ma), Atlantic Ocean Mediterranean Sea were connected through Rifian Corridor (Morocco). This gateway is one of few examples deep ancient seaways with a semi-continuous sedimentary record. Deposits comprise turbidites intercalated between dee...

High-resolution multichannel seismic reflection data that spans significant parts of the Mozambique margin offshore Zambezi River permits study Oligocene to present architectural evolution turbidite system. In this time frame, five major depositional units are recognized evidence a widespread spatial and temporal occurrence both turbiditic contouritic sedimentation. They indicate sedimentary re...

In order to better understand interglacial climate variability within the 41 kyr world, we produced high-resolution records for Marine Isotope Stage (MIS) 47 (1424–1452 ka) at IODP Site U1387 (36°48′ N, 7°43′ W) on southern Portuguese margin. Using benthic and planktonic foraminifera stable isotope records, Uk’37 sea-surface temperature (SST), plankton assemblage data investigated Mediterranean...

The exploration of deep-water submarine fan reservoirs has become a prominent research area for hydrocarbon discovery and recovery. However, the high operational costs render efficient this type reservoir crucial, pivotal foundation lies in studying architectures. A case study fans Albacora Leste oilfield Brazil is presented along with characterization underground architecture based on well-log...

Despite major advances in our understanding of the interactions between bottom currents and sedimentary deposits over last forty years, few studies have focused on nature fine particles contourite depositional systems (CDS). XRD analyses marine sediments can be used to improve fine-grained sediment sources settling processes. This work presents a detailed sedimentological study cores collected ...