Results 31 to 40 of about 6,228 (276)

Long-range sediment transport in the world’s oceans by stably stratified turbidity currents [PDF]

open access: yes, 2016
Peer reviewedPublisher ...
Kneller, Benjamin   +3 more
core   +1 more source

Disconnected submarine lobes as a record of stepped slope evolution over multiple sea-level cycles [PDF]

open access: yesGeosphere, 2018
The effects of abrupt changes in slope angle and orientation on turbidity current behavior have been investigated in numerous physical and numerical experiments and examined in outcrop, subsurface, and modern systems. However, the long-term impact of subtle and evolving seabed topography on the stratigraphic architecture of deep-water systems requires ...
Brooks, HL   +5 more
openaire   +2 more sources

Tracking sea bed topography in the Jurassic. The Lotena Group in the Sierra de la Vaca Muerta (Neuquén Basin, Argentina) [PDF]

open access: yes, 2005
The Lotena Group is a clastic to evaporitic unit up to 650 m thick that accumulated during the Middle to Late Jurassic in the Neuquén Basin, western Argentina.
Zavala, Carlos Alberto
core   +6 more sources

High-Silica Lava Morphology at Ocean Spreading Ridges: Machine-Learning Seafloor Classification at Alarcon Rise

open access: yesGeosciences, 2019
The oceanic crust consists mostly of basalt, but more evolved compositions may be far more common than previously thought. To aid in distinguishing rhyolite from basaltic lava and help guide sampling and understand spatial distribution, we constructed a ...
Christina H. Maschmeyer   +3 more
doaj   +1 more source

Evolution and controlling factors of the gravity flow deposits in the Miocene sequence stratigraphic framework, the Lower Congo—Congo Fan Basin, West Africa

open access: yesPetroleum Exploration and Development, 2021
To understand the evolution of the Miocene gravity flow deposits in the Lower Cong—Congo Fan Basin, this paper documents the Miocene sequence stratigraphic framework, the depositional characteristics and the controlling factors of the gravity flow system.
Hua CHEN   +9 more
doaj   +1 more source

Dimensions and architecture of late Pleistocene submarine lobes off the northern margin of East Corsica [PDF]

open access: yesSedimentology, 2008
AbstractSandy lobe deposits on submarine fans are sensitive recorders of the types of sediment gravity flows supplied to a basin and are economically important as hydrocarbon reservoirs. This study investigates the causes of variability in 20 lobes in small late Pleistocene submarine fans off East Corsica.
Deptuck, M   +3 more
openaire   +1 more source

McHargue et al Architectural Diversity of Submarine Lobes

open access: yes, 2019
The most popular model for submarine unconfined lobate deposits has the following attributes: (1) a single feeder channel that delivers sediment, (2) a set of distributary channels present only in the proximal part of the lobate body, and (3) unchannelized tabular deposits present in the middle and distal part of the lobate deposit.
Tim McHargue   +2 more
openaire   +3 more sources

Sediment Volume and Grain-Size Partitioning Between Submarine Channel−Levee Systems and Lobes: An Experimental Study [PDF]

open access: yesJournal of Sedimentary Research, 2018
The width and depth of submarine channels change progressively as the channels evolve. This is inferred to act as an important control on the rate of sediment loss due overbank and in-channel deposition. Understanding the downstream extraction of sediment from turbidity currents is important for the prediction of grain-size trends and volume ...
de Leeuw, Jan   +5 more
openaire   +3 more sources

Spatiotemporal evolution, mineralogical composition, and transport mechanisms of long-runout landslides in Valles Marineris, Mars [PDF]

open access: yes, 2020
Long-runout landslides with transport distances of >50 km are ubiquitous in Valles Marineris (VM), yet the transport mechanisms remain poorly understood.
Ehlmann, Bethany L.   +2 more
core  

Geology of Tindfjallajökull volcano, Iceland [PDF]

open access: yes, 2018
The geology of Tindfjallajökull volcano, southern Iceland, is presented as a 1:50,000 scale map. Field mapping was carried out with a focus on indicators of past environments.
Dave McGarvie   +10 more
core   +3 more sources

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