Now showing items 1-10 of 1197
Hydrodynamics and morphodynamics of shallow tidal channels and intertidal flats
(Woods Hole Oceanographic Institution, 1993-02)
In this thesis, mechanisms which control morphodynamics of shallow tidal embayments are investigated analytically. In the process of exploring these mechanisms (specifically asymmetries in bottom stress, τ), basis momentum ...
Mantle upwelling, melt generation, and magma transport beneath mid-ocean ridges
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1997-03)
The formation of new oceanic crust is the result of a complex geodynamic system in which mantle rises beneath spreading centers and undergoes decompression melting. The melt segregates from the matrix and is focused to ...
Flow and skin friction over natural rough beds
(Woods Hole Oceanographic Institution, 1983-06)
The first of two sets of data reported here, measured over two-dimensional immobile current ripples, comprises skin-friction time series at four streamwise positions and velocity profiles measured to within a few mm of ...
Age systematics of two young en echelon Samoan volcanic trails
(American Geophysical Union, 2011-07-29)
The volcanic origin of the Samoan archipelago can be explained by one of three models, specifically, by a hot spot forming over a mantle plume, by lithospheric extension resulting from complex subduction tectonics in the ...
Molecular characterization of dissolved organic matter associated with the Greenland ice sheet
Subsurface microbial oxidation of overridden soils and vegetation beneath glaciers and ice sheets may affect global carbon budgets on glacial-interglacial timescales. The likelihood and magnitude of this process depends ...
Timescales of magmatic processes and eruption ages of the Nyiragongo volcanics from 238U-230Th-226Ra-210Pb disequilibria
The silica-undersaturated Nyiragongo volcanics, located in the East African rift, have globally unique chemical compositions and unusually low viscosities, only higher than carbonatite lavas, for terrestrial silicate ...
Deep-sea mining of seafloor massive sulfides
The potential emergence of an ocean mining industry to exploit seafloor massive sulfides could present opportunities for oceanographic science to facilitate seafloor mineral development in ways that lessen environmental harms.
Effects of variable magma supply on mid-ocean ridge eruptions : constraints from mapped lava flow fields along the Galápagos Spreading Center
(American Geophysical Union, 2012-08-25)
Mapping and sampling of 18 eruptive units in two study areas along the Galápagos Spreading Center (GSC) provide insight into how magma supply affects mid-ocean ridge (MOR) volcanic eruptions. The two study areas have similar ...
South China Sea hydrological changes and Pacific Walker Circulation variations over the last millennium
(Nature Publishing Group, 2011-04-26)
The relative importance of north–south migrations of the intertropical convergence zone (ITCZ) versus El Niño-Southern Oscillation and its associated Pacific Walker Circulation (PWC) variability for past hydrological change ...
Dimensions and sinking speeds of tropical radiolarian skeletons from the parflux sediment traps : technical report
(Woods Hole Oceanographic Institution, 1982-05)
Length, width and projected area (58 species) and weight (53 species) of radiolarian. skeletons, mainly from the Panama Basin PARFLUX sediment trap (5°21.8'N, 82°01.4'W) samples, were measured. Volume and density contrast ...