The Neogene–Quaternary development of the ∼700 km long mid-Norwegian and Lofoten–Vesterålen continental margin is reconstructed using a dense grid 2D seismic data exploration wellbores. Overall, widespread ocean current-controlled contourite drifts built up along whole segment from mid-Miocene onwards (c. 11 Ma, Kai Formation). onset 8.8 Ma) large inner shelf progradation (Molo Formation) was, ...

ABSTRACT Contourites are increasingly being recognized in ancient fine-grained depositional environments. However, detailed ichnologic analyses focusing on shallow-water examples of these deposits scarce. The Upper Jurassic–Lower Cretaceous Vaca Muerta Formation from Argentina constitutes an important unconventional reservoir that displays dm- to m-thick, laminated, rippled and bioturbated, cri...

Deep Sea Drilling Program (DSDP) Site 548 was cored in 1984 at a water depth of 1256 m on the Goban Spur, offshore southwest Ireland. Coring retrieved ~100‐m‐thick Pleistocene contourite sequence. This study uses planktonic foraminiferal assemblage and benthic oxygen isotope analyses to establish an age model for upper 40 this core. site's multidisciplinary assemblages, lithic grains, facies ca...

Subaqueous spreading, a type of extensional mass transport that is characterized by ridge and trough morphology, has been documented globally but poorly understood. spreading observed on gently inclined surfaces (typically <3°) when sediment bodies experience sudden reduction shear strength along their basal plane during clay softening or liquefaction sands silty sand sediment. Historically, as...

Abstract Submarine landslides and associated mass-transport deposits (MTDs) modify the physiography of continental margins influence evolution submarine sediment routing systems. Previous studies highlighted control MTDs on subsequent sedimentary processes at spatial scales ranging from tens centimeters to few kilometers, leaving a knowledge gap how for long large-scale (i.e., headscarps wider ...

We present a multidisciplinary study of morphology, stratigraphy, sedimentology, tectonic structure, and physical oceanography to report that the complex geomorphology Palomares continental margin adjacent Algerian abyssal plain (i.e., Gulf Vera, Western Mediterranean), is result sedimentary response Aguilas Arc indentation in Eurasian–Africa plate collision. The imprinted on basement with elon...

Seafloor depressions (SD) are features commonly observed on the ocean floor. They often occur as circular, small-sized (up to 10 s of m) incisions caused by fluid expulsion. Larger (100s m km) considerably less abundant, and their origin development have been scarcely studied. This study investigated two giant morphological (&amp;gt;5 using recently acquired multibeam bathymetry backscatter, se...

Mixed (turbidite-contourite) depositional systems are formed by a complex interplay of deep-water processes. An evaluation their morphological elements and lateral spatial distribution is crucial to better understand the transport processes, involving along-slope bottom currents down-slope turbidity currents. This work investigates extensive still active mixed developed along Pacific margin Ant...

Earthquakes are the most commonly cited cause of offshore slope failure, followed by high sedimentation rates and ensuing pore pressure build-up. In South Alboran Sea, moderate seismicity (Mw = 6.4) strike-slip Al Idrissi Fault Zone does not appear to control directly landslides distribution. To provide a preliminary geohazard assessment, we characterized spatial distribution, volume ages subma...