Browsing by Author "Klein, EM"
Now showing items 1-9 of 9
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4.13 - Composition of the Oceanic Crust
(Treatise on Geochemistry (Second Edition), 2014) -
Isotope evidence of a mantle convection boundary at the Australian-Antarctic Discordance
(Nature, 1988-12-01)Basalts from the Southeast Indian Ridge south of Australia form two geographically and isotopically distinct groups that show affinities with either Indian Ocean or Pacific/Atlantic Ocean isotope compositions. The data raise ... -
Mixing of basalt magmas
(Nature, 1989-12-01) -
Ocean-ridge basalt compositions correlated with palaeobathymetry
(Nature, 1990-12-01)KLEIN and Langmuir1 investigated the relationships between the chemistry and water depth of eruption of zero-age mid-ocean-ridge basalts around the world. They showed that the regionally averaged values of the major-element ... -
Petrological systematics of mid-ocean ridge basalts: Constraints on melt generation beneath ocean ridges
(Mantle Flow and Melt Generation at Mid-Ocean RidgesGeophys. Monogr. Ser., 1992)Mid-ocean ridge basalts (MORB) are a consequence of pressure-release melting beneath ocean ridges, and contain much information concerning melt formation, melt migration and heterogeneity within the upper mantle. MORB major ... -
Reconciling geochemical and geophysical observations of magma supply and melt distribution at the 9N overlapping spreading center, East Pacific Rise
(Geochemistry, Geophysics, Geosystems, 2012-11-01)Early studies of mid-ocean ridge discontinuities, such as transform faults and overlapping spreading centers, suggested a lower magma supply compared to ridge segment centers. This is reflected in bathymetrically deeper ... -
Tectonic and magmatic segmentation of the Global Ocean Ridge System: A synthesis of observations
(2016-01-01)© 2016 The Author(s).Mid-ocean ridges display tectonic segmentation defined by discontinuities of the axial zone, and geophysical and geochemical observations suggest segmentation of the underlying magmatic plumbing system. ... -
The Global Biogeochemical Cycle of Arsenic
(Global Biogeochemical Cycles, 2022-11-01)Direct exploitation and use of arsenic resources has diminished in recent years, but inadvertent mobilizations of As from mineral extractions (metal ores, coal, and phosphate rock) are now as much as ten-fold greater ... -
Volatile abundances and oxygen isotopes in basaltic to dacitic lavas on mid-ocean ridges: The role of assimilation at spreading centers
(Chemical Geology, 2011-08-07)Most geochemical variability in MOR basalts is consistent with low- to moderate-pressure fractional crystallization of various mantle-derived parental melts. However, our geochemical data from MOR high-silica glasses, including ...
