Second Draft with Art and Photos September 2006
... bands radiating out form the hypocenter. These waves can be measured some time later by seismic stations, such as at locations 1 and 2. Seismic stations closer to the hypocenter, such as station 1, will detect it sooner than those farther away, like station 2. 2. The epicenter is the point on the su ...
... bands radiating out form the hypocenter. These waves can be measured some time later by seismic stations, such as at locations 1 and 2. Seismic stations closer to the hypocenter, such as station 1, will detect it sooner than those farther away, like station 2. 2. The epicenter is the point on the su ...
Constraints on the viscosity of the continental crust and mantle from
... observed after large earthquakes such as the 1906, M = 8.3, San Francisco earthquake [Thatcher, 1975; Kenner and Segall, 2000], the 1857, M = 8, Fort Tejon earthquake [Pollitz and Sacks, 1992], the 1964, Mw = 9.2, Great Alaskan earthquake [Savage and Plafker, 1991; Freymueller et al., 2000], and the ...
... observed after large earthquakes such as the 1906, M = 8.3, San Francisco earthquake [Thatcher, 1975; Kenner and Segall, 2000], the 1857, M = 8, Fort Tejon earthquake [Pollitz and Sacks, 1992], the 1964, Mw = 9.2, Great Alaskan earthquake [Savage and Plafker, 1991; Freymueller et al., 2000], and the ...
Deep structure of the Mid Norway rifted margin
... form area and the Jurassic basins on the Halten Terrace involves the successive development of two generations of extensional detachments and their interaction with a deep-seated, antiformal culmination interpreted here as a metamorphic core complex. Denudation of the core complex was related to lar ...
... form area and the Jurassic basins on the Halten Terrace involves the successive development of two generations of extensional detachments and their interaction with a deep-seated, antiformal culmination interpreted here as a metamorphic core complex. Denudation of the core complex was related to lar ...
An integrated geophysical analysis of the upper crust of the southern
... and large volcanic fields at Olkaria and Eburru (Fig. 1). These volcanoes are located near the axis of the rift valley, but basalt– trachyandesite volcanic cones and flows occur in the intervening low areas. Exposed volcanic rocks include the Mau and ...
... and large volcanic fields at Olkaria and Eburru (Fig. 1). These volcanoes are located near the axis of the rift valley, but basalt– trachyandesite volcanic cones and flows occur in the intervening low areas. Exposed volcanic rocks include the Mau and ...
The Moho - EarthByte
... fault), although subject to extensional reactivation, can be clearly interpreted from the multichannel seismic data. The link between the main fault and the high P-wave velocities and densities makes the eclogite interpretation straightforward. The other examples represent a passive margin where muc ...
... fault), although subject to extensional reactivation, can be clearly interpreted from the multichannel seismic data. The link between the main fault and the high P-wave velocities and densities makes the eclogite interpretation straightforward. The other examples represent a passive margin where muc ...
The cold and relatively dry nature of mantle forearcs in subduction
... the integrated effect should be less (See Supplementary Discussion 4). Costa Rica also shows very low Vp of 6.8–7.4 km s−1 in the shallowest part of the mantle wedge <50 km deep30, but the corresponding Vp/Vs ratio in the slow part of that wedge is 1.70–1.80. These observations are inconsistent with ...
... the integrated effect should be less (See Supplementary Discussion 4). Costa Rica also shows very low Vp of 6.8–7.4 km s−1 in the shallowest part of the mantle wedge <50 km deep30, but the corresponding Vp/Vs ratio in the slow part of that wedge is 1.70–1.80. These observations are inconsistent with ...
Seismic response and anisotropy of a model hcp iron inner core
... The method is first tested on simple inner core structural models consisting of layers with distinct anisotropy, as often proposed in the literature. Those models are not consistent with geodynamics. Hence, we extend the method to a numerically grown inner core composed of ε-Fe with flow generated f ...
... The method is first tested on simple inner core structural models consisting of layers with distinct anisotropy, as often proposed in the literature. Those models are not consistent with geodynamics. Hence, we extend the method to a numerically grown inner core composed of ε-Fe with flow generated f ...
Pyrenean orogeny and plate kinematics
... Figure 3. Main magnetic and bathymetric features in the Bay of Biscay and the northeast Atlantic Ocean as extracted from Verhoef et al. [1996] and Sibuet et al. [2004]. The bathymetric contours are at 200-m intervals. EU, Eurasian; IB, Iberian; and NA, North American plates. Also shown are the fossi ...
... Figure 3. Main magnetic and bathymetric features in the Bay of Biscay and the northeast Atlantic Ocean as extracted from Verhoef et al. [1996] and Sibuet et al. [2004]. The bathymetric contours are at 200-m intervals. EU, Eurasian; IB, Iberian; and NA, North American plates. Also shown are the fossi ...
Large-Scale Thermo-chemical Structure of the Deep Mantle
... models (Ritsema et al. 2011) suggest that it may split into a western and an eastern province with a gap of several hundreds of kilometers in between. Both provinces have a trapezoidal shape, but the western region has stronger topography than the eastern region. Sharp boundaries at the southern ed ...
... models (Ritsema et al. 2011) suggest that it may split into a western and an eastern province with a gap of several hundreds of kilometers in between. Both provinces have a trapezoidal shape, but the western region has stronger topography than the eastern region. Sharp boundaries at the southern ed ...
Upper mantle structure beneath the eastern Colorado Plateau and
... curves extracted from the gridded regional data for forward models based on assumed subsurface density variations. Calculations follow the Talwani method, with subsequent revisions by Cady [Cady, 1980; Talwani et al., 1959]. Input parameters for the calculation include (1) vertices of uniformdensity ...
... curves extracted from the gridded regional data for forward models based on assumed subsurface density variations. Calculations follow the Talwani method, with subsequent revisions by Cady [Cady, 1980; Talwani et al., 1959]. Input parameters for the calculation include (1) vertices of uniformdensity ...
Upper mantle structure beneath the eastern Colorado Plateau and
... curves extracted from the gridded regional data for forward models based on assumed subsurface density variations. Calculations follow the Talwani method, with subsequent revisions by Cady [Cady, 1980; Talwani et al., 1959]. Input parameters for the calculation include (1) vertices of uniformdensity ...
... curves extracted from the gridded regional data for forward models based on assumed subsurface density variations. Calculations follow the Talwani method, with subsequent revisions by Cady [Cady, 1980; Talwani et al., 1959]. Input parameters for the calculation include (1) vertices of uniformdensity ...
Characterizing the Main Himalayan Thrust in the Garhwal Himalaya
... thrust horses (Célérier et al., 2009). The Lower and Higher Himalaya, defined topographically and separated by a physiographic break in slope, correspond approximately to the LHS and the GHC (Yin, 2006). The Main Central Thrust (MCT) is a crustal-scale south-vergent thrust fault and zone of high du ...
... thrust horses (Célérier et al., 2009). The Lower and Higher Himalaya, defined topographically and separated by a physiographic break in slope, correspond approximately to the LHS and the GHC (Yin, 2006). The Main Central Thrust (MCT) is a crustal-scale south-vergent thrust fault and zone of high du ...
Geophysical and petrological modelling of the
... Information on the physical and chemical properties of the lithosphere–asthenosphere system (LAS) can be obtained by geophysical investigation and by studies of petrology–geochemistry of magmatic rocks and entrained xenoliths. Integration of petrological and geophysical studies is particularly usefu ...
... Information on the physical and chemical properties of the lithosphere–asthenosphere system (LAS) can be obtained by geophysical investigation and by studies of petrology–geochemistry of magmatic rocks and entrained xenoliths. Integration of petrological and geophysical studies is particularly usefu ...
Upper mantle structure of eastern Asia from multimode surface
... below the 200 km depth map in Figure 4c. The short black lines on the maps denote the fast direction of the horizontally propagating Sv waves. The bar length for 3% peak-to-peak anisotropy is shown below the 250 km depth map in Figure 4d. Red contours denote tectonic features from Figure 1; green li ...
... below the 200 km depth map in Figure 4c. The short black lines on the maps denote the fast direction of the horizontally propagating Sv waves. The bar length for 3% peak-to-peak anisotropy is shown below the 250 km depth map in Figure 4d. Red contours denote tectonic features from Figure 1; green li ...
The crustal structure of the southern Caspian region
... off-azimuth arrivals and then simplified the models and tested the significance of their features by forward modelling. In this way, we have determined the main crustal features beneath each of the stations while minimizing the effects of lateral variations in structure. In the following discussion, ...
... off-azimuth arrivals and then simplified the models and tested the significance of their features by forward modelling. In this way, we have determined the main crustal features beneath each of the stations while minimizing the effects of lateral variations in structure. In the following discussion, ...
Fulltext - ETH E
... The 3D upper mantle S-velocity structure shows strong correlation between the imaged heterogeneities and the tectonics and geology along the plate boundary. The upper mantle along the Eurasia-Africa suture zone is characterized by high-velocity material representing subducted oceanic lithosphere. Th ...
... The 3D upper mantle S-velocity structure shows strong correlation between the imaged heterogeneities and the tectonics and geology along the plate boundary. The upper mantle along the Eurasia-Africa suture zone is characterized by high-velocity material representing subducted oceanic lithosphere. Th ...
