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References in periodicals archive ?
Heat loss from the mantle is strongest at the mid-ocean ridges where the lithosphere is thinnest, but mass flow is mostly passive and very slow with no large-scale, buoyancy-driven upwelling of material from below.
These high cation to proton activity ratios can be directly related to the primary mineralogy of mid-ocean ridge basalts, which includes plagioclase and diopside.
The [delta][sup.56]Fe values of sulfides also exhibit lighter Fe isotope characteristics relative to hydrothermal vent fluids from the mid-ocean ridge. The vent temperature, fluid properties, and mineral deposition processes significantly affect the [delta][sup.56]Fe values of hydrothermal sulfides.
Leybourne, M.I., and Van Wagoner, N.A., 1991, Heck and Heckle Seamounts, northeast Pacific Ocean: High extrusion rates of primitive and highly depleted mid-ocean ridge basalts on off-ridge seamounts: Journal of Geophysical Research, v.
At the mid-ocean ridge, molten lava rises to the top of the oceanic crust, Earth's outermost layer of rock in the oceans.
Ophiolites were equated with oceanic lithosphere that was created at mid-ocean ridges. A growing volume of seismic data from the ocean floor made it tempting to compare the socalled "well preserved stratigraphy" of ophiolites, later to be called "Penrose stratigraphy", with the geophysical stratigraphy of modern oceanic lithosphere (Fig.
The Mid-Cayman Spreading Center, however, has attributes that distinguish it from other mid-ocean ridges. It is deep and geographically isolated from its nearest neighbor, the Atlantic Ocean.
Similar volcanic plumbing has been observed beneath mid-ocean ridges.
The proposed work will use computational models of two-phase magma/mantle dynamics and petrology to explore links between glacial cycles and mid-ocean ridge volcanism.
So in 2006, scientists from Woods Hole Oceanographic Institution led a collaboration of researchers from different disciplines who investigated the broad range of factors that could influence larval movement, focusing on one particular mid-ocean ridge called the East Pacific Rise.
Edwards and her colleagues recently conducted a biological census of rocks that formed during the past 20,000 years at a spot along the East Pacific Rise, a mid-ocean ridge segment that lies off-the northwestern coast of South America.
Objective: It is now recognised that large oceanic detachment faults are fundamentally important along slow-spreading rate portions of the mid-ocean ridge system.