Results 41 to 50 of about 768 (99)

Ichnological analysis: A tool to characterize deep-marine processes and sediments [PDF]

, 2022
The deep-marine environment is a complex setting in which numerous processes —settling of pelagic and hemipelagic particles in the water column, sediment gravity flows (downslope density currents; turbid flows), and bottom currents— determine sediment ...
Rodríguez Tovar, Francisco J.
core   +1 more source

Variations in Event‐Bed Thickness‐Frequency Distributions Near Volcanic Islands: Indicators of Varied Geological Processes

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 6, June 2025.
Abstract A variety of subaerial and submarine events, including mass‐wasting and volcanism, can generate sediment gravity flows and fallout deposits that are preserved in deep‐water stratigraphic records. This study examines whether event beds with differing depositional and transport histories exhibit distinct thickness‐frequency distributions ...
Yu‐Chun Chang, José C. F. Kling, Julie C. Schindlbeck‐Belo, Neil C. Mitchell, Kan‐Hsi Hsiung, Toshiya Kanamatsu   +5 more
wiley   +1 more source

How Did Westward Volcaniclastic Deposits Accumulate in the Deep Sea Following the January 2022 Eruption of Hunga Volcano?

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.
Abstract Most volcanic eruptions on Earth take place below the ocean surface and remain largely unobserved. Reconstruction of past submerged eruptions has thus primarily been based on the study of seafloor deposits. Rarely before the 15 January 2022 eruption of Hunga volcano (Kingdom of Tonga) have we been able to categorically link deep‐sea deposits ...
Marcus Chaknova, Thomas Giachetti, Joali Paredes‐Mariño, Adam Soule, Alexa R. Van Eaton, Roxanne Beinart, Martin Crundwell, Shane J. Cronin, Martin Jutzeler, Kristen E. Fauria, Michael A. Clare, Isobel A. Yeo, Shawn Arellano, Liam Kelly, Sally Watson, Rebecca Carey, Taaniela Kula, Craig M. Young   +17 more
wiley   +1 more source

Enigmatic Deep‐Water Seafloor Depressions East of Tortue Island, Northern Haiti Margin

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.
Abstract A widespread area of seafloor depressions ‐ circular, arcuate to elongated‐shaped ‐ has been found along the Northern Haitian coast, at water depths between 600 and 2,000 m. Characterized by wavelengths spanning several hundred meters and heights of tens of meters, these depressions are linked with a series of narrow ridges boasting varied ...
A. Oliveira de Sá, S. Lafuerza, S. Leroy, E. d’Acremont, E. Ducassou, R. Deschamps, K. Fauquembergue, S. Zaragosi, J. L. Granja‐Bruña, R. Momplaisir, D. Boisson   +10 more
wiley   +1 more source

Bathymodioline mussel dominated Miocene whale fall from Italy [PDF]

, 2016
The bones of an unidentified odontocete from the Langhian Pantano Formation (~ 15 million years ago), found near the town of Carpineti (Reggio Emilia), Northern Italy, are associated with more than two hundred specimens of the bathymodioline mussel ...
Bertolaso, L, Danise, S, Dominici, S
core   +2 more sources

Coeval Transverse and Axial Sediment Delivery to the Northern Hikurangi Trough During the Late Quaternary

Basin Research, Volume 37, Issue 1, January–February 2025.
Sediment delivery to the northern Hikurangi Trough has been driven by transverse gravity flows funnelled through the Māhia Canyon, alongside contributions from the overspill of the axial Hikurangi Channel. Large‐scale sediment waves and scours were formed by flows from the Māhia Canyon during MIS2 in response to substantially higher sediment fluxes ...
Anthony E. Shorrock, Lorna J. Strachan, Philip M. Barnes, Gregory F. Moore, Adam D. McArthur, Davide Gamboa, Adam D. Woodhouse, Rebecca E. Bell, Sam R. Davidson, Helen C. Bostock   +9 more
wiley   +1 more source

Using pollen in turbidites for vegetation reconstructions

Journal of Quaternary Science, Volume 39, Issue 7, Page 1053-1063, October 2024.
ABSTRACT Turbidites, deposited by sub‐aqueous gravity flows, are common in sedimentary archives worldwide and present a unique challenge and opportunity when reconstructing past vegetation through pollen analysis. When sampling pollen from a sediment core for palaeovegetation records, it is common practice to target background sediments (i.e.
Laura S. McDonald, Lorna J. Strachan, Katherine Holt, Adam D. McArthur, Philip M. Barnes, Katherine L. Maier, Alan R. Orpin, Mark Horrocks, Aratrika Ganguly, Jenni L. Hopkins, Helen C. Bostock   +10 more
wiley   +1 more source

Changes in macroinvertebrate community structure provide evidence of neutral mine drainage impacts [PDF]

, 2013
Contamination of aquatic environments as a consequence of metal mining is an international issue. Most historic studies have considered the impact of acid mine drainage (pH < 6) on instream communities and comparatively little attention has been given ...
Armitage, Armitage, Bahrndorff, Batty, Beasley, Berger, Biological Monitoring Working Party, Braungardt, British Geological Survey, Burton, Byrne, Byrne, Byrne, Byrne, Campbell, Chadwick, Cid, Cidu, Clements, Davy-Bowker, Dennis, Doi, Environment Agency, Farag, Garcia-Criado, Gerhardt, Gerhardt, Gerhardt, Gower, Gower, Gray, Gray, Gray, Guerold, Hirst, Hogsden, Jones, Kiffney, Knott, Lefcort, Lenat, Lewin, Malmqvist, Marques, Martinez, Nelson, O'Grady, Poulton, Rauret, Rhea, Roline, Schultheis, Shannon, Smolders, Soucek, Spehar, Sporka, Stoertz, Van Damme, Vermeulen, Walley, Washington, Winterbourn, Yi, Younger, Younger   +65 more
core   +1 more source

The role of the Messinian evaporites in the identification of potential gas storage sites: A review of the Adriatic foreland basin system (Italy)

Basin Research, Volume 36, Issue 5, September–October 2024.
A thick and continuous Messinian unit of primary sulfate evaporites recognized in the Adriatic foredeep represent an effective seal for potential gas storage sites that can be located in the underlying late Miocene carbonate or siliciclastic porous units.
V. Manzi, D. Bigi, S. Lugli, F. Balsamo, N. Chizzini, A. Lucca, F. Storti   +6 more
wiley   +1 more source

An incomplete correlation between pre-salt topography, top reservoir erosion, and salt deformation in deep-water Santos Basin (SE Brazil) [PDF]

, 2017
In deep-water Santos Basin, SE Brazil, hypersaline conditions during the Aptian resulted in the accumulation of halite and carnallite over which stratified evaporites, carbonates and shales were folded, translated downslope and thrusted above syn-rift ...
Alves, Tiago Marcos, Cartwright, Joseph A., Cosgrove, John, Fetter, Marcos, Gangá, Adriana, Lima, Cláudio, Queiroz, Cláudia L., Strugale, Michael   +7 more
core   +1 more source