psha using different attenuation relationships for different
... regions, (3) intermediate-depth subducting plates, also known as Wadati-Benioff or intraslab regions, and interslab deep subducting plates. The shallow-crustal environments can further be divided into compressional and extensional stress regimes. The seismic activity in the example region is associa ...
... regions, (3) intermediate-depth subducting plates, also known as Wadati-Benioff or intraslab regions, and interslab deep subducting plates. The shallow-crustal environments can further be divided into compressional and extensional stress regimes. The seismic activity in the example region is associa ...
Background note on induced seismicity in the
... here in the UK for our own domestic purposes, but these are minnows compared with earthquakes occurring elsewhere and are almost always generated in the middle crust (Basement rocks) at depths of around 15 km or so, where the crust is much stronger than the sedimentary cover which is the target for ...
... here in the UK for our own domestic purposes, but these are minnows compared with earthquakes occurring elsewhere and are almost always generated in the middle crust (Basement rocks) at depths of around 15 km or so, where the crust is much stronger than the sedimentary cover which is the target for ...
Faulting and hydration of the Juan de Fuca plate system
... compaction-induced sediment folding without faulting at places where there are large offsets in the basement structure (e.g., Fig. 3 at ~125 km; Fig. 4 at ~ 85 km; Figs. 5 and 6 at ~120 km) suggests that the sediment rupture is not caused by compaction, but rather by movement of basement fault syste ...
... compaction-induced sediment folding without faulting at places where there are large offsets in the basement structure (e.g., Fig. 3 at ~125 km; Fig. 4 at ~ 85 km; Figs. 5 and 6 at ~120 km) suggests that the sediment rupture is not caused by compaction, but rather by movement of basement fault syste ...
Faulting and hydration of the Juan de Fuca plate system
... compaction-induced sediment folding without faulting at places where there are large offsets in the basement structure (e.g., Fig. 3 at ~125 km; Fig. 4 at ~ 85 km; Figs. 5 and 6 at ~120 km) suggests that the sediment rupture is not caused by compaction, but rather by movement of basement fault syste ...
... compaction-induced sediment folding without faulting at places where there are large offsets in the basement structure (e.g., Fig. 3 at ~125 km; Fig. 4 at ~ 85 km; Figs. 5 and 6 at ~120 km) suggests that the sediment rupture is not caused by compaction, but rather by movement of basement fault syste ...
Structure of the crust beneath the southeastern Tibetan Plateau from
... against the stable Sichuan basin and South China block. Knowing the structure of the crust is a key to better understanding of crustal deformation and seismicity in this region. Here, we analyze recordings of teleseismic earthquakes from 25 temporary broadband seismic stations and one permanent stat ...
... against the stable Sichuan basin and South China block. Knowing the structure of the crust is a key to better understanding of crustal deformation and seismicity in this region. Here, we analyze recordings of teleseismic earthquakes from 25 temporary broadband seismic stations and one permanent stat ...
25th Bob F. Perkins Research Conference
... Corporate-level Diamond sponsors will be acknowledged by having their logo displayed on the back jewel box cover of the Conference CD. Corporate level Platinum sponsors will be acknowledged by having their logo placed on the first page of the CD. All contributions used for scholarships and/or grants ...
... Corporate-level Diamond sponsors will be acknowledged by having their logo displayed on the back jewel box cover of the Conference CD. Corporate level Platinum sponsors will be acknowledged by having their logo placed on the first page of the CD. All contributions used for scholarships and/or grants ...
Magnetic Mysteries
... We say the field is strong near the poles because of the relatively dense number of flux lines. The bearing, after becoming magnetized, also has its own poles which the paper clip is affected by. You could say that the lines of flux are most dense where they go through the bearing and touch the pap ...
... We say the field is strong near the poles because of the relatively dense number of flux lines. The bearing, after becoming magnetized, also has its own poles which the paper clip is affected by. You could say that the lines of flux are most dense where they go through the bearing and touch the pap ...
JMPEE46 4 215Horikoshi
... of electrolytes (0.125 M to 0.50 M) exceeded the rates under E-field irradiation. This inversion phenomenon in heating is described in terms of the penetration depth of the microwaves. On the other hand, the action of the microwave radiation on ethylene glycol containing an electrolyte differed from ...
... of electrolytes (0.125 M to 0.50 M) exceeded the rates under E-field irradiation. This inversion phenomenon in heating is described in terms of the penetration depth of the microwaves. On the other hand, the action of the microwave radiation on ethylene glycol containing an electrolyte differed from ...
Mantle plumes: Why the current skepticism?
... juxtaposed against hot, oceanic astheosphere, small-scale convection may develop at the continental edge and cause vigorous, time-dependent magmatism39. ...
... juxtaposed against hot, oceanic astheosphere, small-scale convection may develop at the continental edge and cause vigorous, time-dependent magmatism39. ...
The recent seismo-volcanic activity at Deception Island volcano
... seismic arrays. We have identified two main types of seismic signals generated by the volcano, namely pure seismovolcanic signals, such as volcanic tremor and long-period (LP) events, and volcano-tectonic (VT) earthquakes. Their temporal distributions are far from homogeneous. Volcanic tremors and LP ...
... seismic arrays. We have identified two main types of seismic signals generated by the volcano, namely pure seismovolcanic signals, such as volcanic tremor and long-period (LP) events, and volcano-tectonic (VT) earthquakes. Their temporal distributions are far from homogeneous. Volcanic tremors and LP ...
The lithosphere–asthenosphere system beneath Ireland from
... to NE Ireland that they interpreted as a hot convective sheet that initiated at ca 63 Ma. Arrowsmith et al. (2005) modeled teleseismic travel times for Ireland and UK stations, and imaged a low-velocity anomaly spatially coincident with the BTIP, providing further support for the anomaly being assoc ...
... to NE Ireland that they interpreted as a hot convective sheet that initiated at ca 63 Ma. Arrowsmith et al. (2005) modeled teleseismic travel times for Ireland and UK stations, and imaged a low-velocity anomaly spatially coincident with the BTIP, providing further support for the anomaly being assoc ...
For several decades single-component seismic reflection methods
... refraction is generally not the first arrival. In addition, the strength of the PPS refraction can be quite variable. These factors often make the PPS wave difficult to identify. For shallow 2D-PS surveys this technique may be difficult to apply, since there are often not enough picks to give an acc ...
... refraction is generally not the first arrival. In addition, the strength of the PPS refraction can be quite variable. These factors often make the PPS wave difficult to identify. For shallow 2D-PS surveys this technique may be difficult to apply, since there are often not enough picks to give an acc ...
304
... Today, a diverse suite of landforms has been described and catalogued from all parts of the earth's surface. However, the exploration and discovery of new landforms continues as it is an important part of the research being done of surface geomorphic features on the planets and moons of our solar sy ...
... Today, a diverse suite of landforms has been described and catalogued from all parts of the earth's surface. However, the exploration and discovery of new landforms continues as it is an important part of the research being done of surface geomorphic features on the planets and moons of our solar sy ...
integration of geological and seismological data
... geologically assessed moment release rate of each fault), the moment frequency distribution of earthquakes predicted from the geologic record is virtually identical to that seen with the 400-yr record of seismicity. These observations indicate that the geologic record of Quaternary fault offsets con ...
... geologically assessed moment release rate of each fault), the moment frequency distribution of earthquakes predicted from the geologic record is virtually identical to that seen with the 400-yr record of seismicity. These observations indicate that the geologic record of Quaternary fault offsets con ...
The single largest oceanic plateau: Ontong Java–Manihiki–Hikurangi
... of MP, and the rapid spreading of the associated Pacific spreading centers has been estimated as 18–20 cm/yr during Chron 34 [5,13,15]. The multiple trends of fracture zones and abyssal hills south of MP to Chatham Rise and magnetic anomaly 34 (Fig. 1) require at least two distinct plates (Hikurangi ...
... of MP, and the rapid spreading of the associated Pacific spreading centers has been estimated as 18–20 cm/yr during Chron 34 [5,13,15]. The multiple trends of fracture zones and abyssal hills south of MP to Chatham Rise and magnetic anomaly 34 (Fig. 1) require at least two distinct plates (Hikurangi ...
pdf preprint - Institute of Geophysics and Planetary Physics
... 2002; Schutt and Humphreys, 2004), but similar studies at Hawaii are extremely limited because of the nearly linear alignment of the islands (e.g., Wolfe et al., 2002). Such studies usually also do not have the resolution within the lithosphere and shallow asthenosphere to distinguish between the fo ...
... 2002; Schutt and Humphreys, 2004), but similar studies at Hawaii are extremely limited because of the nearly linear alignment of the islands (e.g., Wolfe et al., 2002). Such studies usually also do not have the resolution within the lithosphere and shallow asthenosphere to distinguish between the fo ...
Magnetotellurics
Magnetotellurics (MT) is an electromagnetic geophysical method for inferring the earth's subsurface electrical conductivity from measurements of natural geomagnetic and geoelectric field variation at the Earth's surface. Investigation depth ranges from 300m below ground by recording higher frequencies down to 10,000m or deeper with long-period soundings. Developed in the USSR and France during the 1950s, MT is now an international academic discipline and is used in exploration surveys around the world. Commercial uses include hydrocarbon (oil and gas) exploration, geothermal exploration, mining exploration, as well as hydrocarbon and groundwater monitoring. Research applications include experimentation to further develop the MT technique, long-period deep crustal exploration, and earthquake precursor prediction research.