Results 21 to 30 of about 86 (73)

Sedimentary record of submarine gravity‐flow events in the southern Ryukyu forearc during the last 200 000 years: Archive of mega‐earthquakes and tsunamis

Sedimentology, Volume 72, Issue 7, Page 2323-2360, December 2025.
ABSTRACT Despite high convergence velocity, the southern Ryukyu subduction has relatively low and sparse instrumental seismicity, in contrast with the Yaeyama Islands, hit by huge tsunamis over the last few thousand years. This study explores the potential of deep marine sediments to record past large earthquakes and tsunamis.
Nathalie Babonneau, Gueorgui Ratzov, Charlotte Guerin, Mira Richa, Serge Lallemand, Michel Condomines, Patrick Bachelery, Delphine Bosch, Shu‐Kun Hsu, Chih‐Chieh Su, Ryuichi Shinjo, Andrew Lin, Maria‐Angela Bassetti, Marie Revel, Antonio Cattaneo, the EAGER Scientific Team, M Aizawa, G. Ballas, J.‐H. Chang, Y.‐P. Chang, T.‐T. Chen, Y.‐H. Chen, P. Das, J.‐P. Degeai, J. Déverchère, O. De Raco, N. Gosset, M. Herlédan, S.‐L. Ho, H.‐H. Hsu, Y.‐S. Huang, M. Lanson, C. Letourneau, H.‐S. Lin, L.‐F. Lin, L.‐K. Lin, M. Longo, M. Mérindol, B. Mercier de Lépinay, E. Miramontes, P. Morena, K. Nayak, D. Oregioni, L. Patry, R. K. Pillutla, V. Rigalleau, L. San Pedro, P.‐J. Su, F. Volage, K.‐Y. Wei, B. Whilhelm, N.‐T. Yu, P.‐S. Yu   +52 more
wiley   +1 more source

Flood‐Driven Turbidite Deposition in a Highstand‐Detached Submarine Canyon

Geophysical Research Letters, Volume 52, Issue 21, 16 November 2025.
Abstract Turbidites on active margins represent key archives of great earthquakes, yet turbidity currents triggered by non‐seismic events complicate paleoearthquake records and influence geochemical budgets. Sediment cores collected from highstand‐detached Astoria Canyon address whether non‐seismic turbidity currents are preserved in canyon ...
Evan Lahr, Andrea Ogston, Rick Keil, Jaqui Neibauer, Jassem Al‐Thani   +4 more
wiley   +1 more source

Near Steady Late Pleistocene Tropical Denudation Rates in SW Madagascar

Journal of Geophysical Research: Earth Surface, Volume 130, Issue 7, July 2025.
Abstract Denudation is a key parameter controlling the evolution of the Earth's surface, the production of soils, the stability of relief, or the long‐term evolution of climate. Climate fluctuations conversely have a strong impact on denudation, but these complex feedback mechanisms are still under‐constrained.
Etienne Large, Julien Charreau, Pierre‐Henri Blard, Germain Bayon, Eduardo Garzanti, Bernard Dennielou, Gwenaël Jouet, Natalia Vazquez Riveiros, Jacques Giraudeau, Laurie Reisberg, Aimeryc Shcumacher, Alfred Andriamamonjy, Amos Fety Michel Rakotondrazafy   +12 more
wiley   +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

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

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

A Middle Triassic Cassian‐type fauna (Pelsa‐Vazzoler Lagerstätte) and the adaptive radiation of the Modern evolutionary fauna

Papers in Palaeontology, Volume 10, Issue 4, July/August 2024.
Abstract We describe a high‐diversity silicified assemblage of marine molluscs (Pelsa‐Vazzoler Lagerstätte) from the upper Ladinian of the Agordo Dolomites (northeastern Italy). New data on the Triassic rebound, after the end‐Permian mass extinction, constrain it to an interval of relatively stable climatic conditions.
Stefano Dominici, Silvia Danise, Andrea Tintori   +2 more
wiley   +1 more source