Results 41 to 50 of about 50,785 (248)

Deformation-related volcanism in the Pacific Ocean linked to the Hawaiian-Emperor bend [PDF]

open access: yes, 2015
Ocean islands, seamounts and volcanic ridges are thought to form above mantle plumes. Yet, this mechanism cannot explain many volcanic features on the Pacific Ocean floor and some might instead be caused by cracks in the oceanic crust linked to the ...
AAP Koppers   +41 more
core   +2 more sources

Radiative Cooling by Green(er) Solvents‐Upcycled Polyvinyl Chloride From Drug Blisters Waste

open access: yesAdvanced Optical Materials, EarlyView.
This study explores upcycling poly(vinyl chloride) (PVC) from used pharmaceutical blisters into sustainable radiative cooling materials. Using solvent separation and membrane fabrication, PVC was converted into white membranes paired with aluminum foil.
Andrea Lanfranchi   +2 more
wiley   +1 more source

Application of PXRF in sediment analysis for geochemical prospecting in Dragon Horn area on the southwestern Indian Ridge

open access: yes地质科技通报, 2022
Polymetallic sulfides associated with hydrothermal activity near the mid-ocean ridges are importantpotential replacement resources in the future, while their exploration techniques and methods are relatively scarce at present.
Shili Liao   +3 more
doaj   +1 more source

Characterization of the frequency of extreme events by the Generalized Pareto Distribution

open access: yes, 2000
Based on recent results in extreme value theory, we use a new technique for the statistical estimation of distribution tails. Specifically, we use the Gnedenko-Pickands-Balkema-de Haan theorem, which gives a natural limit law for peak-over-threshold ...
Pisarenko, V. F., Sornette, D.
core   +1 more source

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

open access: yesThe Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro   +1 more
wiley   +1 more source

Distribution of Bouguer gravity anomaly and crust and upper mantle in the Antarctic region

open access: yesAntarctic Record, 1986
Bouguer gravity anomaly south of 45°S was derived from the newly provided data of free-air anomaly and topography, and its implications in the crust and upper mantle structure of the land and its marginal ocean area were discussed from the viewpoint of ...
Takeshi Matsumoto   +2 more
doaj   +1 more source

Speed matters - seismicity and spreading processes of ultraslow spreading mid-ocean ridges [PDF]

open access: yes, 2018
The creation of new ocean lithosphere at mid-ocean ridges is accompanied by characteristic earthquake activity. The analysis of mid-ocean ridge seismicity proved a powerful tool to study submarine accretion of lithosphere and the structure of mid-ocean ...
Schlindwein, Vera
core  

Vesicularity, bubble formation and noble gas fractionation during MORB degassing

open access: yes, 2013
The objective of this study is to use molecular dynamics simulation (MD) to evaluate the vesicularity and noble gas fractionation, and to shed light on bubble formation during MORB degassing.
Aubry, G., Guillot, B., Sator, N.
core   +2 more sources

The northern sector of the last British ice sheet : maximum extent and demise [PDF]

open access: yes, 2008
Strongly divided opinion has led to competing, apparently contradictory, views on the timing, extent, flow configuration and decay mechanism of the last British Ice Sheet.
Bradwell, Tom   +11 more
core   +2 more sources

Gleaning the Rocky Shore? 2500 Years of Coastal Resource Use at Red Bluff 1, GunaiKurnai Country, SE Australia

open access: yesArchaeology in Oceania, EarlyView.
ABSTRACT Shell middens in Gippsland along the eastern half of Victoria's coastline have usually been characterised as small, short‐duration camp sites with relatively low shell densities and low taxonomic diversity. Here we present new excavation results from a dense, high‐diversity site at Red Bluff near the eastern end of GunaiKurnai Country, a ...
Patrick Faulkner   +17 more
wiley   +1 more source

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