Results 81 to 90 of about 126,508 (258)

The age and origin of the central Scotia Sea [PDF]

, 2010
Opening of the Drake Passage gateway between the Pacific and Atlantic oceans has been linked in various ways to Cenozoic climate changes. From the oceanic floor of Drake Passage, the largest of the remaining uncertainties in understanding this opening is
Eagles, Graeme
core   +1 more source

The effect of brittle-ductile weakening on the formation of tectonic patterns at mid-ocean ridges [PDF]

, 2022
Mingqi Liu, Antoine Rozel, Taras Gerya
openalex   +1 more source

A limpet's eye view of post‐glacial isostasy: fixed biological indicators provide new sea‐level index points for the Mid‐Holocene relative highstand in eastern Northern Ireland

Boreas, EarlyView.
Bioerosional scars made by limpets (Patella) on a cliff in Co. Antrim, Northern Ireland, indicate a Mid‐Holocene RSL of +7.8±0.55 m relative to local mid‐tide level today. This is higher than previous empirical data for the region and extrapolated levels from raised shorelines in Scotland but consistent with some recent GIA models.
Michael J. Simms, Paula J. Reimer
wiley   +1 more source

Mid‐Ocean Ridge (MOR) Ash Dispersal on Axial Seamount, Juan de Fuca Ridge

Geochemistry, Geophysics, Geosystems
Rare eruption of primitive normal mid‐ocean ridge basalt (N‐MORB) magma (∼9.5 wt% MgO) on the summit of Axial Seamount generated abundant ash that was dispersed for several km.
Ryan A. Portner, Guangyu Xu, Arran P. Murch, David A. Clague, Brian M. Dreyer, Jennifer B. Paduan   +5 more
doaj   +1 more source

Expedition to the volcanoes of the Arctic seafloor : the AMORE Expedition headed for the so-called “Gakkel Ridge” where, on the floor of the Arctic Ocean, there is hot work afoot – for this ocean ridge is composed of active volcanoes [PDF]

, 2004
Beginning: When Jules Verne made his imaginary journey of exploration to the centre of the earth through the vents in an Icelandic volcano over a hundred years ago, he assumed that all volcanoes are interlinked in a subterranean system.
Haas, Christian, Jokat , Wilfried, Mühe, Richard, Snow, Jonathan, Spielhagen, Robert, Thiede, Jörn   +5 more
core  

Beyond spreading rate: Controls on the thermal regime of mid-ocean ridges [PDF]

, 2023
Jie Chen, Jean‐Arthur Olive, Mathilde Cannat   +2 more
openalex   +1 more source

Homo luzonensis and the role of homoplasy in the morphology of hominin insular species

Cladistics, EarlyView.
Abstract Homo luzonensis lived during the upper Pleistocene in the northern Philippines, east of the Wallace line. The few specimens attributed to this species show a mosaic of plesiomorphies for the genus Homo and apomorphies found in upper Pleistocene Homo species.
Pierre Gousset, Jérémie Bardin, Isabelle Rouget, Armand S. Mijares, Florent Détroit   +4 more
wiley   +1 more source

A joint geochemical–geophysical record of time-dependent mantle convection south of Iceland [PDF]

, 2014
The North Atlantic V-Shaped Ridges (VSRs) provide a spatially extensive and clear record of unsteady mantle convective circulation over >40 My>40 My.
S.M. Jones, B.J. Murton, J.G. Fitton, N.J. White, J. Maclennan, R.L. Walters, Albers, Barton, Benediktsdóttir, Bourdon, Bown, Bown, Bunch, Cohen, Crosby, Devey, Fitton, Fitton, Foulger, Foulger, Gaherty, Gibson, Harðarson, Hey, Ito, Jones, Jones, Jones, Katz, Kojitani, Kokfelt, Kokfelt, Koornneef, Louden, Maclennan, Maclennan, Maclennan, McKenzie, Murton, Navin, Peate, Pickett, Pilidou, Poore, Poore, Poore, Ribe, Ribe, Rickers, Robinson, Rudge, Samworth, Schilling, Schilling, Schubert, Shorttle, Sims, Sims, Slater, Sleep, Sleep, Smallwood, Stracke, Stracke, Taylor, Tilmann, Vogt, Walters, Watson, Weir, White, White, White, White, Whitmarsh, Wright   +75 more
core   +5 more sources

Compound‐Specific Stable Isotope Analysis Reveals Population‐Specific Differences in Chinook Salmon Trophic Level and Basal Resource Use in the Northeast Pacific

Fisheries Oceanography, EarlyView.
ABSTRACT Chinook salmon exhibit far‐flung and disparate population‐specific marine migrations that have made it difficult to assess their trophic ecology. In this study, we collected returning and resident subadult Fraser River Chinook salmon in 2018 and 2019 from population groups with different known run‐timings (spring, summer, and fall) and marine ...
Jacob E. Lerner, Brian P. V. Hunt
wiley   +1 more source

Magmatic activity at the slowest spreading rates: insights from a high-resolution earthquake catalog obtained from Gakkel Ridge Deep (Arctic Ocean)

Seismica
At the eastern end of Gakkel Ridge, Arctic Ocean, spreading rates drop below 5 mm/y near the termination of the active mid-ocean ridge in the Laptev Sea.
David Essing, Annika Hellbrück, Vera Schlindwein   +2 more
doaj   +1 more source