Velocity increase in the uppermost oceanic crust of subducting
... 1983; Miyoshi et al. 2012). Furthermore, their apparent velocities are approximately 7 and 4 km/s, respectively, corresponding well with the P- and S-wave velocities in the oceanic crust. Thus, trapped seismic waves are considered as guided waves propagating along the lowvelocity oceanic crust. This ...
... 1983; Miyoshi et al. 2012). Furthermore, their apparent velocities are approximately 7 and 4 km/s, respectively, corresponding well with the P- and S-wave velocities in the oceanic crust. Thus, trapped seismic waves are considered as guided waves propagating along the lowvelocity oceanic crust. This ...
- Wiley Online Library
... Ranges from shots t o each receiver were calculated by ray-tracing both direct and multiple water paths through a model of the water sound velocity versus depth structure (illustrated in the Appendix, Fig. B). A consistent set of shot positions (listed in the Appendix, Fig. C) and receiver locations ...
... Ranges from shots t o each receiver were calculated by ray-tracing both direct and multiple water paths through a model of the water sound velocity versus depth structure (illustrated in the Appendix, Fig. B). A consistent set of shot positions (listed in the Appendix, Fig. C) and receiver locations ...
Seismic characteristics and distribution of volcanic
... Abstract: A voluminous magmatic complex was emplaced in the Vøring and Møre basins during Paleocene/Eocene continental rifting and break-up in the NE Atlantic. This intrusive event has had a significant impact on deformation, source-rock maturation and fluid flow in the basins. Intrusive complexes a ...
... Abstract: A voluminous magmatic complex was emplaced in the Vøring and Møre basins during Paleocene/Eocene continental rifting and break-up in the NE Atlantic. This intrusive event has had a significant impact on deformation, source-rock maturation and fluid flow in the basins. Intrusive complexes a ...
Dynamic Earth: crustal and mantle heterogeneity
... The dynamic processes within the Earth leave their record in geophysical and geochemical variation about the general stratification with depth. A snapshot of current structure is provided by geophysical evidence, whereas geochemical information provides a perspective over the age of the Earth. The co ...
... The dynamic processes within the Earth leave their record in geophysical and geochemical variation about the general stratification with depth. A snapshot of current structure is provided by geophysical evidence, whereas geochemical information provides a perspective over the age of the Earth. The co ...
Tsunamigenic earthquakes in the Gulf of Cadiz
... Gutscher et al. (2002) is also inconsistent with the absence of magmatism younger than 6 Ma in the eastern Alboran (see arguments in Platt and Houseman, 2003). Recently, in an effort to evaluate the likelihood of the different seismotectonic settings proposed for the Gulf of Cadiz, Cunha et al. (201 ...
... Gutscher et al. (2002) is also inconsistent with the absence of magmatism younger than 6 Ma in the eastern Alboran (see arguments in Platt and Houseman, 2003). Recently, in an effort to evaluate the likelihood of the different seismotectonic settings proposed for the Gulf of Cadiz, Cunha et al. (201 ...
Mountain Building Processes in Four-Dimensions (4D-MB)
... and numerical flow models to track variations in asthenospheric flow patterns through time. The 4D images acquired by AlpArray will go beyond existing models in which asthenospheric flow is assumed to be static over millions of years (Faccenna & Becker 2010). D. Motion and seismicity through time Se ...
... and numerical flow models to track variations in asthenospheric flow patterns through time. The 4D images acquired by AlpArray will go beyond existing models in which asthenospheric flow is assumed to be static over millions of years (Faccenna & Becker 2010). D. Motion and seismicity through time Se ...
Imaging crustal and upper mantle structure beneath the Colorado
... boundary between the plateau and the extended Basin and Range since the Mid‐Cenozoic at a rate similar to that of magmatic migration into the plateau from the southeast, south, and northwest. Moreover, the Rayleigh wave tomography model images parts of a high‐velocity drip in the western Colorado Pl ...
... boundary between the plateau and the extended Basin and Range since the Mid‐Cenozoic at a rate similar to that of magmatic migration into the plateau from the southeast, south, and northwest. Moreover, the Rayleigh wave tomography model images parts of a high‐velocity drip in the western Colorado Pl ...
Lithosphere structure underneath the Tibetan Plateau inferred from
... 2. Method and data analysis The numerical model used is based on the integration of regional elevation, gravity, geoid and thermal data together with available seismic data. The combined interpretation of these data provides information on the density and temperature distribution at different depth ...
... 2. Method and data analysis The numerical model used is based on the integration of regional elevation, gravity, geoid and thermal data together with available seismic data. The combined interpretation of these data provides information on the density and temperature distribution at different depth ...
Basement structures from satellite-derived gravity field: South China
... these structures are slowly buried below the deposits of oceanic living and concealed to the observer studying the ocean bottom. For geologic studies, the basement topography underlying a sediment cover may be of great interest, in relating to tectonic features such as spreading axes, ridges, trench ...
... these structures are slowly buried below the deposits of oceanic living and concealed to the observer studying the ocean bottom. For geologic studies, the basement topography underlying a sediment cover may be of great interest, in relating to tectonic features such as spreading axes, ridges, trench ...
Seismic Conceptual Design of Buildings
... earth's crust. Waves of different types and velocities travel different paths before reaching a building’s site and subjecting the local ground to various motions. The ground moves rapidly back and forth in all directions, usually mainly horizontally, but also vertically. What is the duration of the ...
... earth's crust. Waves of different types and velocities travel different paths before reaching a building’s site and subjecting the local ground to various motions. The ground moves rapidly back and forth in all directions, usually mainly horizontally, but also vertically. What is the duration of the ...
Lithospheric buoyancy forces in Africa from a thin sheet approach
... CRUST 2.0, a global crustal model at a 2 9 2" resolution (Bassin et al. 2000) with seven vertical layers (ice, water, soft sediments, hard sediments, upper crust, middle crust, lower crust). CRUST 2.0 will be our basis for computing GPE and the horizontal deviatoric stresses resulting from its later ...
... CRUST 2.0, a global crustal model at a 2 9 2" resolution (Bassin et al. 2000) with seven vertical layers (ice, water, soft sediments, hard sediments, upper crust, middle crust, lower crust). CRUST 2.0 will be our basis for computing GPE and the horizontal deviatoric stresses resulting from its later ...
Factors influencing magmatism during continental break
... 1999). This method identifies reversed shot and receiver pairs, and is a rapid way of highlighting data ...
... 1999). This method identifies reversed shot and receiver pairs, and is a rapid way of highlighting data ...
I. What are Earthquakes?
... E. The gap hypothesis is based on the idea that a major earthquake is more likely to occur along the part of an active fault where no earthquakes have occurred for a certain period of time. F. An area along a fault where relatively few earthquakes have occurred recently but where strong earthquakes ...
... E. The gap hypothesis is based on the idea that a major earthquake is more likely to occur along the part of an active fault where no earthquakes have occurred for a certain period of time. F. An area along a fault where relatively few earthquakes have occurred recently but where strong earthquakes ...
Shear zones in the Proterozoic lithosphere of the
... into the time domain. The composite time-domain RFs are stacked, resulting in a single time series. The eastern stack [Fig. 4(A)] is computed from data from backazimuths 75–105°, while the western stack is computed from data from backazimuths 255–285°. The time-trace RFs in Fig. 4 are used as data i ...
... into the time domain. The composite time-domain RFs are stacked, resulting in a single time series. The eastern stack [Fig. 4(A)] is computed from data from backazimuths 75–105°, while the western stack is computed from data from backazimuths 255–285°. The time-trace RFs in Fig. 4 are used as data i ...
Computation of phase equilibria by linear programming
... which it is necessary to assess the influence of phase transitions on rock properties or the evolution and migration of fluids. The basis of the algorithm is the representation of the continuous compositional variations of solution phases by series of discrete compositions. As a consequence of this ...
... which it is necessary to assess the influence of phase transitions on rock properties or the evolution and migration of fluids. The basis of the algorithm is the representation of the continuous compositional variations of solution phases by series of discrete compositions. As a consequence of this ...
