Results 81 to 90 of about 16,283 (208)

Seismic Stratigraphy of Eocene–Recent Mixed Depositional Systems on the SE New Zealand Continental Margin, Great South Basin

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
The continental margin of SE New Zealand is strongly influenced by the Southland Current and associated water masses. This new seismic stratigraphic study of the margin has revealed a range of depositional mounds and erosional channels that document the close interaction of turbidity and bottom currents in shaping the margin from the Mid‐Eocene onward.
Onyekachi N. Ibezim   +3 more
wiley   +1 more source

Inferring Cenozoic Cover Thickness and Bedrock Sedimentary Material in 3D From Geophysical Data Using Machine Learning Algorithms: A Case Study in the Lockington Region, Victoria, Australia

open access: yesEarth and Space Science, Volume 13, Issue 3, March 2026.
Abstract This study presents a supervised machine learning approach to constructing a 3D geological model for the Lockington area in Victoria, Australia, by integrating borehole observations, geophysical surveys (magnetic, gravity, and radiometric), and elevation data.
Limin Xu   +2 more
wiley   +1 more source

Mass wasting at the base of the South central Chilean continental margin: the Reloca Slide [PDF]

open access: yes, 2009
Offshore south central Chile (35° S–42° S), the morphology of the lowermost continental slope and trench floor witnesses a voluminous submarine mass-wasting event.
Behrmann, Jan Hinrich   +4 more
core   +1 more source

Large‐Scale Submarine Sediment Waves at Macauley Caldera Volcano: In Situ Evidence of High‐Flux, Syn‐Eruptive Submarine Transport

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.
Abstract Two sediment cores were collected from a submarine sediment wave field on the flank of Macauley volcano. Combined with seismic reflection surveys and numerical modeling, we present an integrated model of the formation of large‐scale, eruption‐fed, submarine sediment waves. The sediment waves are large (>100 m high, 1.5 km wide, tens of km long)
Shannon E. Frey   +3 more
wiley   +1 more source

U-Pb geochronology of detrital zircon crystals from Caratas and Los Arroyos formations, Northeastern Venezuela.

open access: yesRevista Técnica de la Facultad de Ingeniería, 2014
 LA-MC-ICPMS U-Pb geochronology in detrital zircons was performed in two Tertiary turbidite sequences from Northeastern Venezuela to contribute to the understanding of the Cenozoic history of the northern South America plate. The age results of detrital
Mariela Noguera   +3 more
doaj  

Process controls on the development of stratigraphic trap potential on the margins of confined turbidite systems and aids to reservoir evaluation [PDF]

open access: yes, 2001
Stratigraphic trapping at pinch-out margins is a key feature of many turbidite-hosted hydrocarbon reservoirs. In systems confined by lateral or oblique frontal slopes, outcrop studies show that there is a continuum between two geometries of pinch-out ...
Kneller, B.C., McCaffrey, W.D.
core  

Provenance and geochemistry of exotic clasts in conglomerates of the Oligocene Torehina Formation, Coromandel Peninsula, New Zealand [PDF]

open access: yes, 2003
Non-marine pebble to cobble conglomerates of the lower Torehina Formation (Oligocene) crop out along western Coromandel Peninsula and overlie, with strong angular discordance, continental-margin metasedimentary rocks (Manaia Hill Group) of Mesozoic (Late
Baker C. K.   +19 more
core   +2 more sources

Major Reservoir Regulation Reshapes the Composition and Fate of Particulate Organic Carbon in the Yellow River

open access: yesWater Resources Research, Volume 62, Issue 3, March 2026.
Abstract Reservoir regulation significantly alters the export and flux of terrestrial particulate organic carbon (POC), while also modifying its composition and fate within fluvial systems. However, the effects of different regulatory regimes on riverine POC persistence and transformation remains uncertain.
Jingbo Chen   +5 more
wiley   +1 more source

Slumping and Sediment Storage at the Shelf‐Edge: A Case Study From the Kookfontein and Waterford Formations, Tanqua Karoo Depocenter, South Africa

open access: yesBasin Research, Volume 38, Issue 2, March/April 2026.
Block model of Tanqua shelf‐edge delta formation at Katjiesberg, illustrating key stratigraphic features and system relationships interpreted from the Kookfontein‐Waterford formations. Schematic lines A‐E correspond to locations of measured sections. ABSTRACT A low‐gradient shelf‐edge delta system preserved at the Katjiesberg outcrop in the northern ...
Ellen Reat Wersan   +3 more
wiley   +1 more source

Lateral variations in the signature of earthquake‐generated deposits in Lake Iznik, NW Turkey

open access: yesThe Depositional Record
Using lake‐sediment cores to document past seismicity requires a comprehensive understanding of possible lateral variations in depositional processes. This study aims to reveal the lateral variations in earthquake‐induced event deposits throughout Lake ...
R. Gastineau   +11 more
doaj   +1 more source

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