Practice Questions - Arizona Educator Proficiency Assessments
... The list of test objectives for each test field is the only source of information about what a specific test will cover and therefore should be studied carefully. Practice questions. The practice questions for the selected-response and performance assignment sections included in this section are des ...
... The list of test objectives for each test field is the only source of information about what a specific test will cover and therefore should be studied carefully. Practice questions. The practice questions for the selected-response and performance assignment sections included in this section are des ...
Small-scale upper mantle convection and crustal dynamics in
... superimposed sources of driving forces. In this paper we aim to resolve the role of small-scale convection of the upper mantle in driving deformation of the overlying crust in southern California. It is clear that present-day deformation in southern California is strongly influenced by plate interac ...
... superimposed sources of driving forces. In this paper we aim to resolve the role of small-scale convection of the upper mantle in driving deformation of the overlying crust in southern California. It is clear that present-day deformation in southern California is strongly influenced by plate interac ...
Nature template
... < Table 1 Major element and volatile composition of melt inclusions and glasses from host lavas. We present the melt inclusion data corrected and uncorrected for host olivine crystallization, and we report the fraction of olivine crystallized (Xol). Major elements were determined by electron micropr ...
... < Table 1 Major element and volatile composition of melt inclusions and glasses from host lavas. We present the melt inclusion data corrected and uncorrected for host olivine crystallization, and we report the fraction of olivine crystallized (Xol). Major elements were determined by electron micropr ...
Geomagnetic Deep Sounding in and around the Kenya Rift Valley
... instruments, we could only run a line of stations on an east-west profile across the rift valley. The traverse that we finally selected runs more or less along the equator, from Kabianga in the west to Meru in the east (Fig. 1). This line is not ideal, in that the structure of the rift is complicate ...
... instruments, we could only run a line of stations on an east-west profile across the rift valley. The traverse that we finally selected runs more or less along the equator, from Kabianga in the west to Meru in the east (Fig. 1). This line is not ideal, in that the structure of the rift is complicate ...
Deep-mantle contributions to the surface dynamics of the North
... lithosphere and asthenosphere below the Canadian Shield (Bokelmann, 2002b). The connection between seismic anisotropy and the mantle flow field is, however, indirect and depends on the assumed deformation history of the mantle region under study (Kaminski and Ribe, 2001). Furthermore, the degree of hy ...
... lithosphere and asthenosphere below the Canadian Shield (Bokelmann, 2002b). The connection between seismic anisotropy and the mantle flow field is, however, indirect and depends on the assumed deformation history of the mantle region under study (Kaminski and Ribe, 2001). Furthermore, the degree of hy ...
Introduction - Beck-Shop
... crust into the mantle and reworking crust leading to differentiation, it remains problematic in ancient crust to determine the relative importance of these processes in the generation of particular rock suites exposed at Earth’s surface. Alternative models for crustal growth place greater importance ...
... crust into the mantle and reworking crust leading to differentiation, it remains problematic in ancient crust to determine the relative importance of these processes in the generation of particular rock suites exposed at Earth’s surface. Alternative models for crustal growth place greater importance ...
Earthquake-generated tsunamis in the Mediterranean Sea
... Where we lacked data we constrained fault size using the empirical relationships by Wells and Coppersmith [1994]. For strike, dip and rake we used all available information from geological maps based on surface and subsurface data and from focal mechanisms (CMT, EMMA). Further constraints on rake we ...
... Where we lacked data we constrained fault size using the empirical relationships by Wells and Coppersmith [1994]. For strike, dip and rake we used all available information from geological maps based on surface and subsurface data and from focal mechanisms (CMT, EMMA). Further constraints on rake we ...
Moho map of South America from receiver functions and surface
... the evolution of the South American continent. We use seismology to investigate the Earth’s interior, and provide additional information about the evolution and current state of the crust and upper mantle beneath South America. Within the past decade the availability of seismological data recorded i ...
... the evolution of the South American continent. We use seismology to investigate the Earth’s interior, and provide additional information about the evolution and current state of the crust and upper mantle beneath South America. Within the past decade the availability of seismological data recorded i ...
Discrete visco-elastic lattice methods for seismic wave propagation
... [2] The heterogeneous nature of geological materials leads to many challenges when modelling a variety of phenomena in natural structures. These include, for example, pore fluids, complex topography and fractures which can be included as non-welded interfaces. The discontinuous nature of these natur ...
... [2] The heterogeneous nature of geological materials leads to many challenges when modelling a variety of phenomena in natural structures. These include, for example, pore fluids, complex topography and fractures which can be included as non-welded interfaces. The discontinuous nature of these natur ...
42. The Geochemistry of Oceanic Crust at the Onset of Rifting in the
... 417 in Cretaceous crust in the west-central Atlantic Ocean. One of the prime objectives of Leg 123 was to obtain a sedimentary section and oceanic basement from the oldest (Late Jurassic) Indian Ocean crust in the Argo Abyssal Plain off the northwestern Australian margin. The low sedimentation rates ...
... 417 in Cretaceous crust in the west-central Atlantic Ocean. One of the prime objectives of Leg 123 was to obtain a sedimentary section and oceanic basement from the oldest (Late Jurassic) Indian Ocean crust in the Argo Abyssal Plain off the northwestern Australian margin. The low sedimentation rates ...
PDF only - at www.arxiv.org.
... Condensation, i.e., raining-out from within a giant gaseous proto-planet at high pressures and high temperatures, led to core formation without whole-planet melting and to a highly reduced internal composition which made possible a planetocentric nuclear fission reactor. Earth’s early formation as ...
... Condensation, i.e., raining-out from within a giant gaseous proto-planet at high pressures and high temperatures, led to core formation without whole-planet melting and to a highly reduced internal composition which made possible a planetocentric nuclear fission reactor. Earth’s early formation as ...
Proposal to conduct a Caribbean plate project involving the
... Electromagnetic remole sensing and potential field measurement techniques, which have been developed for use at orbital altitudes, are not viewed as r eplacements for conventional methods of geological research . Rather , geological information derived from analysis of space·acquired data can be com ...
... Electromagnetic remole sensing and potential field measurement techniques, which have been developed for use at orbital altitudes, are not viewed as r eplacements for conventional methods of geological research . Rather , geological information derived from analysis of space·acquired data can be com ...
Cellar_2015nrgw_GGN_Lecture 2
... The amplitudes of surface waves are uncorrelated, and the power spectrum of each of them is direction independent: ...
... The amplitudes of surface waves are uncorrelated, and the power spectrum of each of them is direction independent: ...
Seismic retrofit - TU Delft Repositories
... for the Dutch economy. 98% of the households run their gas stoves and boilers on the gas from the Groningen gas field. The downside is that the production of natural gas is acknowledged to cause subsidence and earthquakes (Namplatform, 2014), deteriorating the positive reputation of natural gas as o ...
... for the Dutch economy. 98% of the households run their gas stoves and boilers on the gas from the Groningen gas field. The downside is that the production of natural gas is acknowledged to cause subsidence and earthquakes (Namplatform, 2014), deteriorating the positive reputation of natural gas as o ...
aLIGOPoster_BostonAAS_G1100481-v1
... the test masses need the most isolation from ground motion – a reduction in 9 orders of magnitude at 10 Hz. To achieve this isolation, Advanced LIGO uses many successive stages of active and passive isolation. (Top) The two-stage, passive and active seismic isolation platform. Each stage is suspende ...
... the test masses need the most isolation from ground motion – a reduction in 9 orders of magnitude at 10 Hz. To achieve this isolation, Advanced LIGO uses many successive stages of active and passive isolation. (Top) The two-stage, passive and active seismic isolation platform. Each stage is suspende ...
GYROTROPY AND ANISOTROPY OF ROCKS: SIMILARITIES AND
... in the symmetry plane (parallel to the cracks) and the other displacement vector us2 is normal to this plane. If there are two systems of mutually perpendicular vertical cracks, the medium is orthorhombic and the displacement vectors lie in the two symmetry planes. For general acquisition geometries ...
... in the symmetry plane (parallel to the cracks) and the other displacement vector us2 is normal to this plane. If there are two systems of mutually perpendicular vertical cracks, the medium is orthorhombic and the displacement vectors lie in the two symmetry planes. For general acquisition geometries ...
Compositional and density stratification in oceanic lithosphere
... melting of between 20 and 30 per cent (Green z97I , Wyllie z97z ) ; we shall assume a 25 per cent melt, and thus a 2 z km thick depleted zone; this is taken to have a uniform degree of depletion and a sharp interface with the undepleted zone beneath. These assumptions considerably simplify the analy ...
... melting of between 20 and 30 per cent (Green z97I , Wyllie z97z ) ; we shall assume a 25 per cent melt, and thus a 2 z km thick depleted zone; this is taken to have a uniform degree of depletion and a sharp interface with the undepleted zone beneath. These assumptions considerably simplify the analy ...
Deep structure of the Baikal rift zone revealed by joint inversion of
... [9] The coherent behavior of these two data sets (Figure 3) justifies the use of a linear correlation coefficient (hereafter referred to as B-factor) between density and velocity which is constant within specified depth intervals of the crust and mantle [Abers, 1994]. [10] The two lowest Bouguer val ...
... [9] The coherent behavior of these two data sets (Figure 3) justifies the use of a linear correlation coefficient (hereafter referred to as B-factor) between density and velocity which is constant within specified depth intervals of the crust and mantle [Abers, 1994]. [10] The two lowest Bouguer val ...
Peculiarities of roughness and thickness of oceanic crust in the
... The Gakkel Ridge, northern boundary of the American and Eurasian plates, has the slowest spreading rate of the global ridge system. Therefore, it provides an excellent opportunity to study any dependence of crustal fabric on spreading rate. Two parameters, crustal surface roughness and crustal thick ...
... The Gakkel Ridge, northern boundary of the American and Eurasian plates, has the slowest spreading rate of the global ridge system. Therefore, it provides an excellent opportunity to study any dependence of crustal fabric on spreading rate. Two parameters, crustal surface roughness and crustal thick ...
Manea - Final - Centro de Geociencias ::.. UNAM
... The profiles of bathymetry which cross the TR region indicate the existence of two distinct areas separated by the TR: the northwestern area characterized by depths between 3500-3900 m and the southeastern area, a part of the Guatemala Basin, with depths between 4200-4800 m, with the depth step of ~ ...
... The profiles of bathymetry which cross the TR region indicate the existence of two distinct areas separated by the TR: the northwestern area characterized by depths between 3500-3900 m and the southeastern area, a part of the Guatemala Basin, with depths between 4200-4800 m, with the depth step of ~ ...
Convergent Plate Boundaries - North Coast Distance Education
... An example is the great Alpine fold and thrust belt of southern Europe. The Tyrolean Alps of northern Italy illustrate the results of deformation when plates collide, in this case the African and Eurasian plates. Thick sequences of sedimentary strata, originally deposited on the seafloor, were defor ...
... An example is the great Alpine fold and thrust belt of southern Europe. The Tyrolean Alps of northern Italy illustrate the results of deformation when plates collide, in this case the African and Eurasian plates. Thick sequences of sedimentary strata, originally deposited on the seafloor, were defor ...
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.