Results 91 to 100 of about 19,863 (232)

Earth science field work: Role and status [PDF]

, 1988
This essay contends that the outstanding contributions currently being made to the earth sciences by theoretical and laboratory endeavors increase rather than decrease the need for sound field observations.
Sharp, Robert P.
core   +1 more source

Geochemical Disequilibrium at the Brittle‐Ductile Transition

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract We investigate the microtextural, microchemical, and isotopic effects of late‐stage ductile deformation in quartzite mylonites and kyanite–muscovite–quartz veins from the Raft River shear zone (Utah). Quartz microstructures record pervasive disequilibrium, expressed by unannealed features including undulatory extinction, deformation lamellae ...
Raphaël Gottardi, Ryan McAleer, Gabriele Casale, Martin Wong   +3 more
wiley   +1 more source

The role of platform margin collapses and slope landslides in the initiation and evolution of submarine canyons

Frontiers in Marine Science
The Zhongsha Platform is the largest modern isolated carbonate platform of around 8600 km2 in the South China Sea, providing a unique case study for sedimentary processes in pure carbonate settings.
Junjin Chen, Junjin Chen, Junjin Chen, Junjin Chen, Qi Li, Qi Li, Qi Li, Shiguo Wu, Shiqiao Liu   +8 more
doaj   +1 more source

Modeling Upper Ocean Ecosystem Dynamics in Response to Interannual Sea‐Ice Variability in the Western Antarctic Peninsula

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.
Abstract In the Western Antarctic Peninsula (WAP), marine plankton dynamics are tightly linked to the interannual variability in environmental conditions, including phenological shifts in sea‐ice seasonality. To explore these linkages, we use a 1‐dimensional vertical ocean‐ice‐ecosystem model (KPP‐Eco‐Ice, or KEI) that simulates physical and ecosystem ...
Catherine R. Czajka, Jessica S. Turner, Sharon Stammerjohn, Heather H. Kim, Oscar Schofield, Benjamin T. Saenz, Scott C. Doney   +6 more
wiley   +1 more source

Oceanographic and underwater acoustics research : conducted during the period 1 November 1960 - 30 April 1961 [PDF]

, 1961
Digital computing techniques have been used in special computing applications in underwater acoustics at WHOI for many years, but recently we have commenced intensive application of digital data handling and computing facilities to a variety of computing,
Woods Hole Oceanographic Institution, /
core   +1 more source

Seismic Stratigraphy of the Peruvian Forearc Drifts from 3° to 7°S: Identification and Influence of Lower Layers of the Humboldt Current System

Paleoceanography and Paleoclimatology, Volume 41, Issue 4, April 2026.
Abstract The seafloor morphology and subsurface geometry of a late Neogene contourite drift located along the Peru margin is documented for the first time using multibeam bathymetry, two‐dimensional and three‐dimensional seismic data. Along the margin several submarine canyons incise the shelf and slope.
Gérôme Calvès, Stéphane Brusset, Ysabel Calderon, Patrice Baby, Peter D. Clift   +4 more
wiley   +1 more source

Advances in Understanding Marine Geohazards: From Characterization to Prediction

Journal of Marine Science and Engineering
Marine geohazards encompass a wide variety of processes, including submarine landslides, canyon morphodynamics, turbidity currents, gas hydrates, seafloor fluid emissions, and the impacts of internal solitary waves on sediments [...]
Xianda Zhan, Qiliang Sun, Chaoqi Zhu
doaj   +1 more source

Linking Direct Measurements of Turbidity Currents to Submarine Canyon-Floor Deposits

Frontiers in Earth Science, 2019
Submarine canyons are conduits for episodic and powerful sediment density flows (commonly called turbidity currents) that move globally significant amounts of terrestrial sediment and organic carbon into the deep sea, forming some of the largest ...
Katherine L. Maier, Katherine L. Maier, Jennifer A. Gales, Charles K. Paull, Kurt Rosenberger, Peter J. Talling, Stephen M. Simmons, Roberto Gwiazda, Mary McGann, Matthieu J. B. Cartigny, Eve Lundsten, Krystle Anderson, Michael A. Clare, Jingping Xu, Daniel Parsons, James P. Barry, Monica Wolfson-Schwehr, Nora M. Nieminski, Esther J. Sumner   +18 more
doaj   +1 more source

Accounting for Intra‐ and Intergenomic Sequence Variation in Reference Barcodes Improves eDNA Metabarcoding Biodiversity Assessment

Molecular Ecology Resources, Volume 26, Issue 3, April 2026.
ABSTRACT Environmental DNA (eDNA) metabarcoding can rapidly characterise biodiversity, yet its accuracy and effectiveness are limited by incomplete DNA barcode reference databases. We evaluated how comprehensive reference databases that include sequence variation within genomes (intragenomic) and across individuals and species (intergenomic) improve ...
Luke J. McCartin, Samuel A. Vohsen, Annemarie L. Wood, Jeremy Horowitz, José J. Orozco‐Juarbe, Nicole Pittoors, Declan Morrissey, Claudia F. Vaga, Colleen M. Hansel, Allen G. Collins, Andrea M. Quattrini, Santiago Herrera   +11 more
wiley   +1 more source

Deep-water turbidites as Holocene earthquake proxies: the Cascadia subduction zone and Northern San Andreas Fault systems [PDF]

, 2003
New stratigraphic evidence from the Cascadia margin demonstrates that 13 earthquakes ruptured the margin from Vancouver Island to at least the California border following the catastrophic eruption of Mount Mazama.
Goldfinger, Chris, Johnson, Joel E., Nelson, C. Hans   +2 more
core   +1 more source