Results 1 to 10 of about 782,637 (367)

The African upper mantle and its relationship to tectonics and surface geology [PDF]

open access: bronzeGeophysical Journal International, 2008
This paper focuses on the upper-mantle velocity structure of the African continent and its relationship to the surface geology. The distribution of seismographs and earthquakes providing seismograms for this study results in good fundamental and higher mode path coverage by a large number of relatively short propagation paths, allowing us to image the ...
Priestley, Keith   +3 more
semanticscholar   +9 more sources

The Deep Roots of Geology: Tectonic History of Australia and its Margins expressed by Mantle Anisotropy [PDF]

open access: green, 2021
Abstract The Australian continental crust preserves a rich geological history, but it is unclear to what extent this history is expressed deeper within the mantle. Scattering of surface waves predominantly between 100-200 km depth by lateral gradients in seismic anisotropy, termed Quasi-Love waves, offer potential new insights.
Caroline Eakin
openaire   +3 more sources

The Deep Roots of Geology: Tectonic History of Australia Preserved as Mantle Anisotropy [PDF]

open access: green, 2021
Abstract Australia is an old stable continent with a rich geological history. Limitations in sub-surface imaging below the Moho, however, mean that is unclear to what extent, and to what depth, this rich geological history is expressed in the mantle.
Caroline Eakin
openaire   +2 more sources

Geology, geochronology, and geochemistry of the Miocene–Pliocene Ancestral Cascades arc, northern Sierra Nevada, California and Nevada: The roles of the upper mantle, subducting slab, and the Sierra Nevada lithosphere [PDF]

open access: bronzeGeosphere, 2008
The assemblage of ca. 28–3 Ma volcanic rocks exposed in the Lake Tahoe–Reno region of the northern Sierra Nevada, United States, is interpreted to be part of the Ancestral Cascades volcanic arc. The volcanic rocks are commonly highly porphyritic, including abundant plagioclase with clinopyroxene, amphibole, and rare biotite, and range from basaltic ...
Cousens, B   +4 more
openaire   +4 more sources

Mantle dynamics in the Mediterranean

open access: yesReviews of Geophysics, 2014
Claudio Faccenna   +2 more
exaly   +2 more sources

Home - About - Disclaimer - Privacy