Results 81 to 90 of about 50,735 (203)

Effects of variable magma supply on mid‐ocean ridge eruptions: Constraints from mapped lava flow fields along the Galápagos Spreading Center

Geochemistry, Geophysics, Geosystems, 2012
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 spreading rates (53 versus 55 
Alice Colman, John M. Sinton, Scott M. White, J. Timothy McClinton, Julie A. Bowles, Kenna H. Rubin, Mark D. Behn, Buffy Cushman, Deborah E. Eason, Tracy K. P. Gregg, Karl Grönvold, Silvana Hidalgo, Julia Howell, Owen Neill, Chris Russo   +14 more
doaj   +1 more source

Drilling of shallow marine sulfide-sulfate mineralisation in south-eastern Tyrrhenian Sea, Italy; Seafloor sulfides, Tyrrhenian Sea, highsulfidation; hydrothermal systems, Palinuro [PDF]

, 2009
Semi-massive to massive sulfides with abundant late native sulfur were drilled in a shallowwater hydrothermal system in an island arc volcanic setting at the Palinuro volcanic complex in the Tyrrhenian Sea, Italy.
Augustin, Nico, Gemmell, J. B., Gibson, H., Hannington, Mark D., Lackschewitz, Klas, Monecke, T., Perrin, K., Petersen, Sven, Sharpe, R., Simpson, K.   +9 more
core  

Eruptive timing and 200 year episodicity at 92°W on the hot spot‐influenced Galapagos Spreading Center derived from geomagnetic paleointensity

Geochemistry, Geophysics, Geosystems, 2014
Eruptive timing in mid‐ocean ridge systems is relatively poorly constrained, despite being an important variable in our understanding of many mid‐ocean ridge processes, including volcanic construction; magma recharge, flux, and storage; and the stability
Julie A. Bowles, Alice Colman, J. Timothy McClinton, John M. Sinton, Scott M. White, Kenna H. Rubin   +5 more
doaj   +1 more source

Journey to the Deep Sea Vents [PDF]

This six-day unit provides an in-depth look at the dynamic forces at work on the sea floor. Throughout the unit, students collect their findings in a portfolio.

core   +1 more source

Global isostatic geoid anomalies for plate and boundary layer models of the lithosphere [PDF]

Commonly used one dimensional geoid models predict that the isostatic geoid anomaly over old ocean basins for the boundary layer thermal model of the lithosphere is a factor of two greater than that for the plate model.
Hager, B. H.
core   +1 more source

RIDGE and InterRidge: Cooperative interdisciplynary studies of mid-ocean ridges [PDF]

, 1992
RIDGE (gidge mer-Oisciplinary Boba1 bperiments) is a major research initiative in the United States designed to complement existing research on spreading centers. RIDGE has been designed to integrate exploration, expenment and theory into a major, decade-
Detrick, R. S., Humphris, S. E.
core   +1 more source

Mid-Ocean Ridges

, 2016
The Earth’s mid-ocean ridges form a single, connected, topological feature which, as Roger Searle points out, is the longest mountain range in the world. They have developed as a result of the sea floor spreading associated with tectonic movements.
openaire   +1 more source

LANDSAT survey of near-shore ice conditions along the Arctic coast of Alaska [PDF]

The author has identified the following significant results. Winter and spring near-shore ice conditions were analyzed for the Beaufort Sea 1973-77, and the Chukchi Sea 1973-76.
Barrett, S. A., Stringer, W. J.
core   +1 more source

Teleseismic Indication of Magmatic and Tectonic Activities at Slow- and Ultraslow-Spreading Ridges

Journal of Marine Science and Engineering
Magmatic and tectonic processes in the formation of oceanic lithosphere at slow–ultraslow-spreading mid-ocean ridges (MORs) are more complicated relative to faster-spreading ridges, as their melt flux is overall low, with highly spatial and temporal ...
Kaixuan Yan, Jie Chen, Tao Zhang
doaj   +1 more source

A strategy for the conservation of biodiversity on mid-ocean ridges from deep-sea mining. [PDF]

Sci Adv, 2018
Dunn DC, Van Dover CL, Etter RJ, Smith CR, Levin LA, Morato T, Colaço A, Dale AC, Gebruk AV, Gjerde KM, Halpin PN, Howell KL, Johnson D, Perez JAA, Ribeiro MC, Stuckas H, Weaver P, SEMPIA Workshop Participants.   +17 more
europepmc   +1 more source