Ischuk, A., R. Bendick, A. Rybin, P. Molnar, S. F. Khan, S. Kuzikov, S. Mohadjer, U. Saydullaev, Z.
... three extreme easternmost Tajik Depression sites and compare their average westward components of velocity with that of the four westernmost sites in the Pamir. Geographic regions were defined using elevation, surface geology, and velocity, so that defined regions reflect previous regional geological i ...
... three extreme easternmost Tajik Depression sites and compare their average westward components of velocity with that of the four westernmost sites in the Pamir. Geographic regions were defined using elevation, surface geology, and velocity, so that defined regions reflect previous regional geological i ...
A preliminary study of crustal structure in Taiwan region using
... initially flat-lying sedimentary units over a continuous basal decollment, uniaxial and continuous east–west compression, and a limited amount of basement involvement. Suppe’s model considered the development of the Taiwan orogeny as resembling the ‘thin-skinned’ growth of a wedge of soil pushed in ...
... initially flat-lying sedimentary units over a continuous basal decollment, uniaxial and continuous east–west compression, and a limited amount of basement involvement. Suppe’s model considered the development of the Taiwan orogeny as resembling the ‘thin-skinned’ growth of a wedge of soil pushed in ...
Effect of Regional Tectonic Setting on Local Fault Response to
... p-axis azimuths for the same period (data from the Japan National Research Institute for Earth Science and Disaster Prevention (NIED) F-net). (b) Location of earthquakes recorded during the 2000 eruption and dike intrusion at Miyake-jima, Japan between June 1 – Dec 31, 2000 (data from NIED F-net). T ...
... p-axis azimuths for the same period (data from the Japan National Research Institute for Earth Science and Disaster Prevention (NIED) F-net). (b) Location of earthquakes recorded during the 2000 eruption and dike intrusion at Miyake-jima, Japan between June 1 – Dec 31, 2000 (data from NIED F-net). T ...
Modelling of Rayleigh-type seam waves in disturbed coal seams
... Detailed treatments of in-seam seismics are given e.g. by Booer (1982), Buchanan (1983) and Dresen & Rüter (1994). For a site investigation of the rock structure beyond the heading face during the drivage of a new coal mine roadway, no special purpose seismic system exists that makes use of seismic ...
... Detailed treatments of in-seam seismics are given e.g. by Booer (1982), Buchanan (1983) and Dresen & Rüter (1994). For a site investigation of the rock structure beyond the heading face during the drivage of a new coal mine roadway, no special purpose seismic system exists that makes use of seismic ...
here
... correlate with ocean tides rather than Earth tides. Although Earth tides in the area appear to be amplified, the effects of variations in ocean pressure from directly overhead are apparently a greater influence. Tidal correlations at terrestrial volcanoes are thought to be caused by the effect of Ea ...
... correlate with ocean tides rather than Earth tides. Although Earth tides in the area appear to be amplified, the effects of variations in ocean pressure from directly overhead are apparently a greater influence. Tidal correlations at terrestrial volcanoes are thought to be caused by the effect of Ea ...
Structure
... layer as it intersects with a horizontal surface • Dip – is measured at right angles to strike and is the amount of tilting of the formation (angle at which the bed is inclined from the horizontal) ...
... layer as it intersects with a horizontal surface • Dip – is measured at right angles to strike and is the amount of tilting of the formation (angle at which the bed is inclined from the horizontal) ...
The Tectonic Framework of the Sumatran Subduction Zone
... tragedy provides an important opportunity for earth scientists to educate the world on the seriousness of earthquake and tsunami hazards for many regions, especially those that may seem harmless at present, as northern Sumatra and the Andamans did before 2004. This review is not of the great earthqu ...
... tragedy provides an important opportunity for earth scientists to educate the world on the seriousness of earthquake and tsunami hazards for many regions, especially those that may seem harmless at present, as northern Sumatra and the Andamans did before 2004. This review is not of the great earthqu ...
America`s Explosive Park
... Nev. The trail of dead calderas is evidence that the hot spot has remained in place while the North American continent has moved southwest over it. Yellowstone gives geologists an opportunity to look inside the Earth at an active hot spot. Taking advantage of the park's size and location on dry land ...
... Nev. The trail of dead calderas is evidence that the hot spot has remained in place while the North American continent has moved southwest over it. Yellowstone gives geologists an opportunity to look inside the Earth at an active hot spot. Taking advantage of the park's size and location on dry land ...
View/Open - Epoka University
... Manisa is determined with SAP2000 computer program according to the Turkish Earthquake Code-2007. The building and its footings do not provide sufficient performance level. So the superstructure is rehabilitated by converting some of the brick infill walls to RC shear walls. The seismic performance ...
... Manisa is determined with SAP2000 computer program according to the Turkish Earthquake Code-2007. The building and its footings do not provide sufficient performance level. So the superstructure is rehabilitated by converting some of the brick infill walls to RC shear walls. The seismic performance ...
Large Scale Ocean Circulation from the GRACE GGM01 Geoid
... homogeneous in distribution and of very high accuracy. For spatial, scales as small as 200 km, the GRACE data used to develop the GGM01 model has improved our knowledge of the gravity model by an order of magnitude over the knowledge obtained using over 30 years of tracking to geodetic satellites su ...
... homogeneous in distribution and of very high accuracy. For spatial, scales as small as 200 km, the GRACE data used to develop the GGM01 model has improved our knowledge of the gravity model by an order of magnitude over the knowledge obtained using over 30 years of tracking to geodetic satellites su ...
Cascadia subducting plate fluids channelled to fore
... Highly variable amounts of sediment are inferred to be subducted, that involve a substantial amount of porosity water. Most of the porosity should collapse and the fluid be expelled at shallow depth, although low-grade metamorphosed sediments may continue to a much greater depth. The upper crust has ...
... Highly variable amounts of sediment are inferred to be subducted, that involve a substantial amount of porosity water. Most of the porosity should collapse and the fluid be expelled at shallow depth, although low-grade metamorphosed sediments may continue to a much greater depth. The upper crust has ...
The California Arc: Thick Granitic Batholiths, Eclogitic Residues
... framework of these granitic batholiths has stirred great geologic controversies and continues to pose several major problems in modern geology, such as quantifying the rates and processes of crustal growth versus recycling in arc environments (e.g., Hamilton, 1988). One of our major limitations in d ...
... framework of these granitic batholiths has stirred great geologic controversies and continues to pose several major problems in modern geology, such as quantifying the rates and processes of crustal growth versus recycling in arc environments (e.g., Hamilton, 1988). One of our major limitations in d ...
Crustal flow in Tibet: geophysical evidence for the physical state of
... tens of kilometers around the recorders (depending on the depth of the anomaly), bodywave tomography and local-seismicity recordings effectively study a region several hundreds of kilometersaround the array, and regional waveform modeling and surface-wave inversions provide measurements integrated o ...
... tens of kilometers around the recorders (depending on the depth of the anomaly), bodywave tomography and local-seismicity recordings effectively study a region several hundreds of kilometersaround the array, and regional waveform modeling and surface-wave inversions provide measurements integrated o ...
Crustal structure of northern and southern Tibet from surface wave
... implied. However, substantial mislocation of an event in time or space would be expected to cause systematic variations of the group velocity estimate with station-event distance, and no such systematic variations have been observed for any of the events analyzed. Multipathing and refraction are not ...
... implied. However, substantial mislocation of an event in time or space would be expected to cause systematic variations of the group velocity estimate with station-event distance, and no such systematic variations have been observed for any of the events analyzed. Multipathing and refraction are not ...
Regional geophysical setting of the Rio Grande rift
... Gravity anomalies associated with essenstructure related to Neogene tectonics, although the gravity effects of all of these tially static intracrustal density variation are superimposed. Gravity gradients related include those associated with the lithology to low-density graben fill delineate major ...
... Gravity anomalies associated with essenstructure related to Neogene tectonics, although the gravity effects of all of these tially static intracrustal density variation are superimposed. Gravity gradients related include those associated with the lithology to low-density graben fill delineate major ...
Normal fault earthquakes or graviquakes
... viscous-plastic basal mantle drag are determining the tectonics at plate boundaries and the deformation is transferred from the lithosphere base at the Earth’s surface. Due to the brittle nature of the upper crust, the shallow deformation occurs episodically, i.e., releasing in few seconds the energ ...
... viscous-plastic basal mantle drag are determining the tectonics at plate boundaries and the deformation is transferred from the lithosphere base at the Earth’s surface. Due to the brittle nature of the upper crust, the shallow deformation occurs episodically, i.e., releasing in few seconds the energ ...
A study of basement structures and onshore
... The Euler deconvolution method (Reid et al. 1990) is a 3-D inversion approach and was also used to estimate the depth to top of the magnetic basement. Structural indices were tested, and an index (SI) of 0.5 (thick step) gave the most focused depth estimates in the eastern platform areas. A structur ...
... The Euler deconvolution method (Reid et al. 1990) is a 3-D inversion approach and was also used to estimate the depth to top of the magnetic basement. Structural indices were tested, and an index (SI) of 0.5 (thick step) gave the most focused depth estimates in the eastern platform areas. A structur ...
Understanding Our Environment
... http://www.seed.slb.com/en/scictr/watch/stratifi/stratifi.htm. Then click on “Digging Deeper” from the bottom box. In the pop-up box, scroll down and click on “Porosity” and run the experiment. Make sure to use your lab book to fill in tables and answer questions. Make sure to calculate the inform ...
... http://www.seed.slb.com/en/scictr/watch/stratifi/stratifi.htm. Then click on “Digging Deeper” from the bottom box. In the pop-up box, scroll down and click on “Porosity” and run the experiment. Make sure to use your lab book to fill in tables and answer questions. Make sure to calculate the inform ...
Crustal structure transition from oceanic arc to continental arc
... two domains between the 6.0 and 6.5 km/s velocity contours. This line and a north^south trending trough of velocities 6 6 km/s south of western Unimak divide the upper crust into three seismically distinct regions which we infer represent the three distinct terranes that make up our area (oceanic Al ...
... two domains between the 6.0 and 6.5 km/s velocity contours. This line and a north^south trending trough of velocities 6 6 km/s south of western Unimak divide the upper crust into three seismically distinct regions which we infer represent the three distinct terranes that make up our area (oceanic Al ...
Earthquake magnitude Richter magnitude (Local Magnitude ML
... The magnitude of an earthquake is a number that relates to the amplitude of the earthquake. Earthquake magnitude scales are logarithmic (i.e. a 1 unit increase in magnitude corresponds to a 10 fold increase in amplitude). Scientists can only estimate the true magnitude of an earthquake by measuring ...
... The magnitude of an earthquake is a number that relates to the amplitude of the earthquake. Earthquake magnitude scales are logarithmic (i.e. a 1 unit increase in magnitude corresponds to a 10 fold increase in amplitude). Scientists can only estimate the true magnitude of an earthquake by measuring ...
Multiscale seismic reflectivity of shallow thermoclines
... Armorican Shelf, west of France (Fig. 1a1). This previous work, however, should deserve additional investigations as three months later, another cruise performed on the same shelf, at less than 200 km distance and using the same seismic device, failed to observe the same water mass structure [Thomas ...
... Armorican Shelf, west of France (Fig. 1a1). This previous work, however, should deserve additional investigations as three months later, another cruise performed on the same shelf, at less than 200 km distance and using the same seismic device, failed to observe the same water mass structure [Thomas ...
PDF (Chapter 2. Earth and Moon)
... differentiated into an iron-rich core and a crust. In these theories it proved difficult to transport molten iron to the center of the planet because of the effect of pressure on the melting point: Molten iron in the upper mantle would freeze before it reached the lower mantle. A central iron-rich n ...
... differentiated into an iron-rich core and a crust. In these theories it proved difficult to transport molten iron to the center of the planet because of the effect of pressure on the melting point: Molten iron in the upper mantle would freeze before it reached the lower mantle. A central iron-rich n ...
Seismic Seismic waves
... Seismic Seismic waves There are several different kinds of seismic waves, and they all move in different ways. The two main types of waves are : body waves surface waves. Body waves can travel through the earth's inner layers, but surface waves can only move along the surface of the p ...
... Seismic Seismic waves There are several different kinds of seismic waves, and they all move in different ways. The two main types of waves are : body waves surface waves. Body waves can travel through the earth's inner layers, but surface waves can only move along the surface of the p ...
Habitable Planets: Interior Dynamics and Long
... Despite the possible importance of plate tectonics on planetary habitability, as discussed above, how plate tectonics arises is still not well understood. At the present day, Earth is unique in our solar system, with the other terrestrial planets Venus and Mars instead having a stagnant lid- essenti ...
... Despite the possible importance of plate tectonics on planetary habitability, as discussed above, how plate tectonics arises is still not well understood. At the present day, Earth is unique in our solar system, with the other terrestrial planets Venus and Mars instead having a stagnant lid- essenti ...
materials - A New Kind of Science
... carbonatites, orangeites and generic mantle plumes (originally core plumes) based on the theory of boundary nonlinear mega-waves forced by core topography and an adjacent turbulent layer. The mega-wave model is consistent with all existing information regarding the Earth’s interior and if this rema ...
... carbonatites, orangeites and generic mantle plumes (originally core plumes) based on the theory of boundary nonlinear mega-waves forced by core topography and an adjacent turbulent layer. The mega-wave model is consistent with all existing information regarding the Earth’s interior and if this rema ...
Earthscope
Earthscope is an earth science program using geological and geophysical techniques to explore the structure and evolution of the North American continent and to understand the processes controlling earthquakes and volcanoes. The project has three components: USARRAY, the Plate Boundary Observatory, and the San Andreas Fault Observatory at Depth.The project is funded by the National Science Foundation (NSF), and the data produced is publicly accessible in real-time. Organizations associated with the project include UNAVCO, the Incorporated Research Institutions for Seismology (IRIS), Stanford University, the United States Geological Survey (USGS) and National Aeronautics and Space Administration (NASA). Several international organizations also contribute to the initiative.