supplementary information pdf
... Institute of Earth Sciences, Academia Sinica, 128 Academia Road Sec. 2, Nangang, Taipei 11529 , Taiwan. Institute of Geophysics, Swiss Federal Institute of Technology Zurich, Sonnegstrasse 5, 8092 Zurich, ...
... Institute of Earth Sciences, Academia Sinica, 128 Academia Road Sec. 2, Nangang, Taipei 11529 , Taiwan. Institute of Geophysics, Swiss Federal Institute of Technology Zurich, Sonnegstrasse 5, 8092 Zurich, ...
A seismic discontinuity in the upper mantle between the Eastern
... depth. The calculated travel times are then displayed on the shot gathers in order to better constrain the possible depth range and to guide improved picking. For travel time calculation, we use a code based on Ray Tracing (Psencik, 1998) and a fast, FD-based Eikonal solver (Hole and Zelt, 1995). Th ...
... depth. The calculated travel times are then displayed on the shot gathers in order to better constrain the possible depth range and to guide improved picking. For travel time calculation, we use a code based on Ray Tracing (Psencik, 1998) and a fast, FD-based Eikonal solver (Hole and Zelt, 1995). Th ...
Model - KFUPM Faculty List
... We then calculated coherence between traces having the same offset, but with different azimuth. As we had reliable information on the main stress azimuth, we decided that four volumes were adequate. Usage of more volumes would lower the signal to noise ratio to unacceptable levels. Model To illustra ...
... We then calculated coherence between traces having the same offset, but with different azimuth. As we had reliable information on the main stress azimuth, we decided that four volumes were adequate. Usage of more volumes would lower the signal to noise ratio to unacceptable levels. Model To illustra ...
A Global View of the Lithosphere-Asthenosphere
... studies is limited to >40 km, which is insufficient to determine the mechanism that defines the boundary. Finally, imaging of the boundary globally at higher resolution with regional and global stacks of body waves has not been possible (7). This could be because the boundary is not sharp enough to ...
... studies is limited to >40 km, which is insufficient to determine the mechanism that defines the boundary. Finally, imaging of the boundary globally at higher resolution with regional and global stacks of body waves has not been possible (7). This could be because the boundary is not sharp enough to ...
High resolution tsunami inversion for 2010 Chile earthquake
... 2. Create the second layer of unit source array identical to the first one. However, we slightly shift the second unit source array with 1/2 grid spacing (Fig. 2). As the result, there is an overlapped area where the resolution is 1/2 of the original one. 3. Calculate the wave propagation of both un ...
... 2. Create the second layer of unit source array identical to the first one. However, we slightly shift the second unit source array with 1/2 grid spacing (Fig. 2). As the result, there is an overlapped area where the resolution is 1/2 of the original one. 3. Calculate the wave propagation of both un ...
Upper mantle anisotropy beneath Australia and Tahiti from P
... seismometer. Ppol should be therefore sensitive to surficial structures (upper crust) at high frequency (i.e., 1 Hz) and to lithospheric and asthenospheric structures at longer periods (up to 30 s). [6] Possible causes of deviations from radial polarization are the following: [7] 1. For sensor misor ...
... seismometer. Ppol should be therefore sensitive to surficial structures (upper crust) at high frequency (i.e., 1 Hz) and to lithospheric and asthenospheric structures at longer periods (up to 30 s). [6] Possible causes of deviations from radial polarization are the following: [7] 1. For sensor misor ...
Tu P05 15 Identification and Elimination of Surface
... multiple elimination. We apply this idea on numerically modeled active data and show the procedure to follow. ...
... multiple elimination. We apply this idea on numerically modeled active data and show the procedure to follow. ...
(2016). A joint local and teleseismic tomography study of
... region surrounding the NMSZ. Interpretations of potential field data and active source reconnaissance seismic refraction and reflection experiments suggest significant crustal heterogeneity beneath the embayment related to a long and complex geological history of rifting, uplift, and subsidence [Mooney ...
... region surrounding the NMSZ. Interpretations of potential field data and active source reconnaissance seismic refraction and reflection experiments suggest significant crustal heterogeneity beneath the embayment related to a long and complex geological history of rifting, uplift, and subsidence [Mooney ...
FE1
... the object moves it also traces out a path, which is usually curved and whose length, measured along the path, is the distance travelled by the object. To illustrate the idea of position, consider a car journey from Lane Cove to the University via the Gladesville Bridge (figure 1.1). The car is cont ...
... the object moves it also traces out a path, which is usually curved and whose length, measured along the path, is the distance travelled by the object. To illustrate the idea of position, consider a car journey from Lane Cove to the University via the Gladesville Bridge (figure 1.1). The car is cont ...
Author`s personal copy
... and upper mantle structures have to be studied in detail. Such studies have recently become possible due to long-range seismic profiles carried out with large chemical and Peaceful Nuclear Explosions (PNE) in the Northern Eurasia (Fig. 1).The PNE studies were made by the GEON Centre of the USSR Minis ...
... and upper mantle structures have to be studied in detail. Such studies have recently become possible due to long-range seismic profiles carried out with large chemical and Peaceful Nuclear Explosions (PNE) in the Northern Eurasia (Fig. 1).The PNE studies were made by the GEON Centre of the USSR Minis ...
Numerical modeling of shear-wave splitting and azimuthal
... seismic velocity anisotropy can be detected by both vertical and horizontal components of the HTI earth model; it is especially evident on radial component. Shear-wave splitting is evident and the crack orientation determined from the polarization of fast and slow shear waves is consistent with the ...
... seismic velocity anisotropy can be detected by both vertical and horizontal components of the HTI earth model; it is especially evident on radial component. Shear-wave splitting is evident and the crack orientation determined from the polarization of fast and slow shear waves is consistent with the ...
Section 13.10 Interference of Waves
... surface and is attached to the free end of the spring. The particle is pulled horizontally so that it stretches the spring 5.00 cm and is then released from rest at t = 0. (a) What is the force constant of the spring? (b) What are the angular frequency ω, the frequency, and the period of the motion? ...
... surface and is attached to the free end of the spring. The particle is pulled horizontally so that it stretches the spring 5.00 cm and is then released from rest at t = 0. (a) What is the force constant of the spring? (b) What are the angular frequency ω, the frequency, and the period of the motion? ...
1 - sjacs.
... Some questions contain parts marked with an asterisk (*). In answering these parts, candidates are required to give paragraph-length answers. In each of these parts, one mark is allocated to assess candidates’ ability in effective communication. ...
... Some questions contain parts marked with an asterisk (*). In answering these parts, candidates are required to give paragraph-length answers. In each of these parts, one mark is allocated to assess candidates’ ability in effective communication. ...
Structure and Dynamics of EarthLs Lower Mantle
... of P waves have been less common than for S and typically lack clear waveform evidence for D″ reflections, although there are some exceptions (24). More commonly, stacking of hundreds or thousands of seismograms is necessary to detect reflected P-wave energy (25); thus, the discontinuity is a much w ...
... of P waves have been less common than for S and typically lack clear waveform evidence for D″ reflections, although there are some exceptions (24). More commonly, stacking of hundreds or thousands of seismograms is necessary to detect reflected P-wave energy (25); thus, the discontinuity is a much w ...
FE1 MOTION
... axis represent positive contributions to the displacement if the curve is above the axis and negative contributions if the curve is below. What happens to the displacement when the velocity goes through zero to become negative ? What can you say about the areas above and below the time axis when the ...
... axis represent positive contributions to the displacement if the curve is above the axis and negative contributions if the curve is below. What happens to the displacement when the velocity goes through zero to become negative ? What can you say about the areas above and below the time axis when the ...
Syllabus
... a) Use appropriate instruments to measure physical quantities: To be explained and carried length, mass, time, temperature, angle, volume and pressure. out in practical session. b) Make rough estimation or order-of-magnitude estimate of a Example: Estimate number ...
... a) Use appropriate instruments to measure physical quantities: To be explained and carried length, mass, time, temperature, angle, volume and pressure. out in practical session. b) Make rough estimation or order-of-magnitude estimate of a Example: Estimate number ...
Earthquakes and the Earth`s Interior
... S-waves travel through material by shearing it or changing its shape in the direction perpendicular to the direction of travel. The resistance to shearing of a material is the property called the rigidity. It is notable that liquids have no rigidity, so that the velocity of an S-wave is zero in a li ...
... S-waves travel through material by shearing it or changing its shape in the direction perpendicular to the direction of travel. The resistance to shearing of a material is the property called the rigidity. It is notable that liquids have no rigidity, so that the velocity of an S-wave is zero in a li ...
crustal velocity structure of the rukwa rift in the western
... We investigate the thickness and seismic velocity structure of the Rukwa Rift crust by modeling seismograms from the 1994 Mw 5.9 Rukwa earthquake and teleseismic receiver functions recorded on a broadband seismic station at the southeastern end of the rift. Two methods have been used to model receiv ...
... We investigate the thickness and seismic velocity structure of the Rukwa Rift crust by modeling seismograms from the 1994 Mw 5.9 Rukwa earthquake and teleseismic receiver functions recorded on a broadband seismic station at the southeastern end of the rift. Two methods have been used to model receiv ...
Effect of pore-fluid on attenuation of elastic waves in rock types from
... directions. This energy loss depends on frequency, that is higher frequencies are absorbed more rapidly than lower frequencies. In addition, attenuation appears to vary with the lithology of the medium [1]. Elastic wave attenuation has great potential as a tool to yield a better understanding of the ...
... directions. This energy loss depends on frequency, that is higher frequencies are absorbed more rapidly than lower frequencies. In addition, attenuation appears to vary with the lithology of the medium [1]. Elastic wave attenuation has great potential as a tool to yield a better understanding of the ...
LATERAL VELOCITY VARIATIONS IN SOUTHERN CALIFORNIA. II
... for Pn ray paths have been ignored (Vetter and Minister, 1981; Hearn, 1984b). If rays to these stations came predominantly from a slow direction, this could result in late static delays. Another important assumption implicitly made is that the static delays are azimuth independent. Many areas, parti ...
... for Pn ray paths have been ignored (Vetter and Minister, 1981; Hearn, 1984b). If rays to these stations came predominantly from a slow direction, this could result in late static delays. Another important assumption implicitly made is that the static delays are azimuth independent. Many areas, parti ...
Kinetic Friction Experiment
... Even though friction forces vary from run to run, for any pair of surfaces they usually don’t vary very much, so similar values of K can be expected from different trials. For most pairs of surfaces, it is found that K is approximately independent of normal force, contact area, and speed. In this ...
... Even though friction forces vary from run to run, for any pair of surfaces they usually don’t vary very much, so similar values of K can be expected from different trials. For most pairs of surfaces, it is found that K is approximately independent of normal force, contact area, and speed. In this ...
Bulletin of the Seismological Society of America, Vol. 76, No. 2, pp
... for P n ray paths have been ignored (Vetter and Minister, 1981; Hearn, 1984b). If rays to these stations came predominantly from a slow direction, this could result in late static delays. Another important assumption implicitly made is that the static delays are azimuth independent. Many areas, part ...
... for P n ray paths have been ignored (Vetter and Minister, 1981; Hearn, 1984b). If rays to these stations came predominantly from a slow direction, this could result in late static delays. Another important assumption implicitly made is that the static delays are azimuth independent. Many areas, part ...
Crustal structure and local seismicity in western Anatolia
... high-frequency and five broad-band instruments were deployed as a regional array. Data from the regional array instruments, plus selected data from the linear array stations were used to locate local events. Because of the proximity of the stations in the linear array to one another we evaluate only ...
... high-frequency and five broad-band instruments were deployed as a regional array. Data from the regional array instruments, plus selected data from the linear array stations were used to locate local events. Because of the proximity of the stations in the linear array to one another we evaluate only ...
Terminal velocity - School
... Terminal velocity Skydivers cannot accelerate forever. They accelerate until they reach a final velocity called a terminal velocity. In this lesson you will investigate the factors that affect terminal velocity. You will then explain how a car reaches its terminal velocity in a similar but slightly ...
... Terminal velocity Skydivers cannot accelerate forever. They accelerate until they reach a final velocity called a terminal velocity. In this lesson you will investigate the factors that affect terminal velocity. You will then explain how a car reaches its terminal velocity in a similar but slightly ...
Velocity of sound in sediments cored from southern
... well to stratigraphic (lithologic) changes. For instance, the contact between the silt of the Waukegan Member and the silty clay of the Lake Forest Member is clearly shown by the velocity data. In addition, the wave velocity within each member seems to be uniform. Equally well shown in the velocity ...
... well to stratigraphic (lithologic) changes. For instance, the contact between the silt of the Waukegan Member and the silty clay of the Lake Forest Member is clearly shown by the velocity data. In addition, the wave velocity within each member seems to be uniform. Equally well shown in the velocity ...
Surface wave inversion
Inversion is the set of methods used to infer properties through physical measurements. Surface wave inversion is the method by which elastic properties, density, and thickness of layers in the subsurface are attained through analysis of surface wavedispersion. The entire inversion process requires the gathering of seismic data, the creation of dispersion curves, and finally the inference of subsurface properties.