10 ENGLISH BOOKS RELATING TO «LOW-VELOCITY ZONE»
Discover the use of
low-velocity zone in the following bibliographical selection. Books relating to
low-velocity zone and brief extracts from same to provide context of its use in English literature.
1
Holmes' Principles of Physical Geology
26 6 THE LOW-VELOCITY ZONE OF THE UPPER MANTLE As long ago as 1926
, the celebrated Californian geologist, Beno Gutenberg, suspected that there was
a low-velocity zone in the upper mantle. As may be gathered from Figure 26.2, ...
Peter MacLaren Donald Duff, Donald Duff, 1993
2
The Earth's Crust: Its Nature and Physical Properties
Sialic Low-Velocity Zone An increasing number of studies dealing with detailed
interpretations of reflected and refracted phases in seismic refraction surveys
have reported evidence for a low-velocity layer in the sialic part of the crust at
depths ...
3
Plates, Plumes, and Paradigms
The low-velocity zone affects V more than V, and it is most pronounced in
oceanic and tectonically active continental areas. Partial melting probably is
widespread in the shallow mantle, at least beneath oceans, and was until
recently widely ...
4
Vertical Seismic Profiling and Its Exploration Potential
The Effect of the Near-Surface and the Low- Velocity Zone on the Field of Primary
and Multiple Reflected Waves Large-scale VSP observations carried out in
various geologic conditions have demonstrated that the upper portion of the
section, ...
E.I. Galperin, Peter Kennett, 1985
5
The Structure and Physical Properties of the Earth's Crust
On this basis, provided we are dealing with a geochemical rate process, it is
probable that, if a highly resistive zone can be found at a depth below the sialic
low-velocity zone, it will tend to be more extensive and more nearly continuous
than ...
6
Physical Geology: Exploring the Earth
Furthermore, it lacks strength, flows plastically, and is thought to be the layer over
which the plates of the outer, rigid lithosphere move. Even though the low-
velocity zone and the asthenosphere closely correspond, they are still distinct.
James Monroe, Reed Wicander, Richard Hazlett, 2006
7
Introduction to Seismology
However, occasionally we will encounter the case where velocity decreases with
depth, creating a low velocity zone (LVZ). The outstanding example in Earth is
the core, where the P velocity drops from about 14 km/s in the lowermost mantle
to ...
Tomographic results are usually expressed in terms of velocity anomalies and a
low velocity zone is a negative velocity anomaly relative to a ID reference model.
Vertical velocity gradients within layer 3 of the oceanic crust are sufficiently small
...
9
Tectonic Faults: Agents of Change on a Dynamic Earth
Thus, fault zone-trapped waves have tremendous potential to define fault
segmentation (Li et al. 2003). One of the outstanding questions not yet fully
addressed by studies of fault zone-guided waves is how deep the low- velocity
zone extends.
Mark R. Handy, Greg Hirth, Niels Hovius, 2007
10
New Zealand Journal of Geology and Geophysics
I next consider the variation with distance shown in Figs. 4 and 5, without regard
to the absolute values. The hypothesis under consideration proposes that ray
paths to Tarata, Karapiro, and Chateau do include a low velocity zone in the
upper ...
4 NEWS ITEMS WHICH INCLUDE THE TERM «LOW-VELOCITY ZONE»
Find out what the national and international press are talking about and how the term
low-velocity zone is used in the context of the following news items.
Understanding the deepwater frontier
... pressures have been linked to a seismically-resolvable, low-velocity zone (LVZ) at 5500 - 8500 m depth with similarly elevated temperatures. «Energy Global, Sep 14»
Giant blob of hot rock hidden beneath Antarctica's ice
The strongest low-velocity zone sits below Marie Byrd Land's Executive Committee Range, directly under the Mount Sidley volcano, said ... «NBCNews.com, Dec 13»
Metamorphism: Water from stone
Not all seismic models show the low-velocity zone lying to the northwest of the main ridge, and the extent to which the geophysical anomalies represent fluid that ... «Nature.com, Jan 10»
Mantle skewness and ridge segmentation
However, we point out here that the mantle low-velocity zone (MLVZ) presented by Toomey et al. is not constrained by their data. We conclude ... «Nature.com, May 09»
