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searching for Low-velocity zone 22 found (36 total)

Ultra-low velocity zone (1,171 words) [view diff] no match in snippet view article find links to article

anchor to a whole-mantle plume. The Samoan is another mega-ultra-low velocity zone which lies directly beneath the Samoa hotspot. This zone is roughly

Altiplano-Puna Magma Body (1,604 words) [view diff] exact match in snippet view article find links to article

gravity, and electromagnetic measurements have been used to image the low-velocity zone in the mid to upper crust known as the APMB. The APMB is likely compositionally

Bus-Obo (187 words) [view diff] no match in snippet view article find links to article

Caledonian orogenic belt in Mongolia, in the Middle Gobi area. A low velocity zone in the mantle is associated with Bus-Obo. Other Pliocene to Pleistocene

Lehmann discontinuity (399 words) [view diff] exact match in snippet view article find links to article

"Mineralogy and elasticity of the oceanic upper mantle: Origin of the low-velocity zone". J. Geophys. Res. 110 (B3): B03204. Bibcode:2005JGRB..110.3204S.

Juan de Fuca plate (1,331 words) [view diff] exact match in snippet view article find links to article

the convergent margins. Using teleseismic body-wave tomography, a low-velocity zone of thickness 50~100 km in the sublithospheric region beneath the Juan

Core–mantle boundary (943 words) [view diff] no match in snippet view article find links to article

100 km below the Earth's oceans. Core–mantle differentiation Ultra low velocity zone Lekic, V.; Cottaar, S.; Dziewonski, A. & Romanowicz, B. (2012). "Cluster

Craton (2,569 words) [view diff] exact match in snippet view article find links to article

At that depth, craton roots extend into the asthenosphere, and the low-velocity zone seen elsewhere at these depths is weak or absent beneath stable cratons

Lithosphere–asthenosphere boundary (1,620 words) [view diff] exact match in snippet view article find links to article

exists seismically fast lithosphere (or a lithospheric lid) above a low-velocity zone (LVZ). Seismic tomographic studies suggests that the LAB is not purely

Jemez Mountains (2,609 words) [view diff] exact match in snippet view article find links to article

The western part of the Valles Caldera is underlain by a seismic low-velocity zone with an area of 10 by 14 kilometers (6.2 by 8.7 mi) and extending

Carolina Lithgow-Bertelloni (973 words) [view diff] exact match in snippet view article find links to article

"Mineralogy and elasticity of the oceanic upper mantle: Origin of the low-velocity zone". Journal of Geophysical Research: Solid Earth. 110 (B3). Bibcode:2005JGRB

Pyrolite (1,445 words) [view diff] exact match in snippet view article find links to article

"Mineralogy and elasticity of the oceanic upper mantle: Origin of the low-velocity zone". Journal of Geophysical Research: Solid Earth. 110 (B3). Bibcode:2005JGRB

Macdonald hotspot (2,882 words) [view diff] no match in snippet view article find links to article

highway of the South Pacific Ocean first described in 2010. An ultra-low velocity zone under Pitcairn extends to the Easter hotspot and the Macdonald hotspot

First break picking (1,482 words) [view diff] exact match in snippet view article find links to article

arrival times are used in an inversion scheme to study the near-surface low-velocity zone and subsequent determination of static corrections. Static correction

Chile Ridge (4,012 words) [view diff] exact match in snippet view article find links to article

experimental results of the P wave travel-time tomography show there is low-velocity zone in the predicted slab window location, migrating eastward with increasing

Hans Thybo (1,385 words) [view diff] no match in snippet view article find links to article

275(5306): 1626–1629. Thybo, H., 2006. The heterogeneous upper mantle low velocity zone. Tectonophysics, 416(1–4): 53–79. Thybo, H., Ross, A.R. and Egorkin

Valles Caldera (3,803 words) [view diff] exact match in snippet view article find links to article

by ongoing volcanic activity. Seismic investigations show that a low-velocity zone lies beneath the caldera, suggesting the presence of partial melt

Mesoplates (2,076 words) [view diff] exact match in snippet view article find links to article

termed a "Dual Plate Tectonic Model." Their rationale is a postulated low-velocity zone near and above the 650 km discontinuity with additional properties

Slow earthquake (4,400 words) [view diff] no match in snippet view article find links to article

wave velocity divided by S wave velocity) and is designated as a Low Velocity Zone (LVZ). Furthermore, the LVZ has high Poisson's ratios as determined

Altiplano–Puna volcanic complex (5,809 words) [view diff] no match in snippet view article find links to article

indicate the presence of melts in a layer called the Altiplano–Puna low velocity zone or Altiplano Puna magma body. Regional variations of activity north

Plate theory (volcanism) (5,859 words) [view diff] exact match in snippet view article

Presnall, D.; Gudfinnsson, G. (2011). "Oceanic volcanism from the low-velocity zone – without mantle plumes". Journal of Petrology. 52 (7–8): 1533–1546

Antofalla (4,756 words) [view diff] exact match in snippet view article find links to article

Toro lineament and the Culampajá one. Seismic tomography has found a low-velocity zone under Antofalla, which may be an active magma body. The terrain beneath

Subsurface mapping by ambient noise tomography (2,039 words) [view diff] no match in snippet view article find links to article

medium while S wave can only travel through solids. Therefore, a low velocity zone can indicate some vacuum space in the subsurface layer, such as void