Geofizikai közlemények - 45. köt. 4. sz. (2011. december)
... Based on the both, the seismic and the gravity modelling, two types of crust can be defined: the Dinaridic and the Pannonian (Fig. 4). The Dinaridic crust is comprised of two parts, the lower and the upper crust, whereas the Pannonian crust is virtually unified. The Dinaridic upper crust is characte ...
... Based on the both, the seismic and the gravity modelling, two types of crust can be defined: the Dinaridic and the Pannonian (Fig. 4). The Dinaridic crust is comprised of two parts, the lower and the upper crust, whereas the Pannonian crust is virtually unified. The Dinaridic upper crust is characte ...
Plate Tectonics PowerPoint
... ridge. Sonar gives us the opportunity to map under water land features and other features that we can use to better understand earths surface. ...
... ridge. Sonar gives us the opportunity to map under water land features and other features that we can use to better understand earths surface. ...
Orogenesis MAJOR OROGENS OF THE
... • Earthquakes are caused by tectonic activity • Tectonic activity (divergence/convergence/transverse motion) along plate boundaries cause fault zones • Most earthquakes located in narrow belts where oceanic plates subduct under continental plates ...
... • Earthquakes are caused by tectonic activity • Tectonic activity (divergence/convergence/transverse motion) along plate boundaries cause fault zones • Most earthquakes located in narrow belts where oceanic plates subduct under continental plates ...
Syllabus 11/11
... Tuesday 11/12: Goal- Students will demonstrate and explain the theory of continental drift 1. Continental Drift Lab Homework: Read pages 304-313 in the textbook. Answer questions 1 & 2 under section wrap-up on page 313. Wednesday 11/13: Goal – Students will relate the structure of the Earth to the C ...
... Tuesday 11/12: Goal- Students will demonstrate and explain the theory of continental drift 1. Continental Drift Lab Homework: Read pages 304-313 in the textbook. Answer questions 1 & 2 under section wrap-up on page 313. Wednesday 11/13: Goal – Students will relate the structure of the Earth to the C ...
Earth`s vital statistics Shape: almost spherical almost spherical Size
... substances such as Iron gravitated slowly to the centre and lighter elements such as silica slowly welled upward to the surface to be concentrated on the crust. Result: interior is in concentric circles – each of distinct chemical composition and temperature Heat from the interior migrates outward f ...
... substances such as Iron gravitated slowly to the centre and lighter elements such as silica slowly welled upward to the surface to be concentrated on the crust. Result: interior is in concentric circles – each of distinct chemical composition and temperature Heat from the interior migrates outward f ...
Relamination and the Fate of Subducted Continental Material
... Most immature crust must be refined to attain the composition of mature continental crust. This refining may take the form of weathering, delamination, or relamination. Delamination and relamination both call upon gravitydriven separation of low-density felsic rock into the crust and high-density ma ...
... Most immature crust must be refined to attain the composition of mature continental crust. This refining may take the form of weathering, delamination, or relamination. Delamination and relamination both call upon gravitydriven separation of low-density felsic rock into the crust and high-density ma ...
Main Seismic Phases: Seismic Phases and 3D Seismic Waves
... Basic Idea: Earth is a lot more complex than people give it credit for. There are a lot more reflective features that are either results of chemical or thermal variations. The basic stratifications (220, 400, 660, crust) are just a start! ...
... Basic Idea: Earth is a lot more complex than people give it credit for. There are a lot more reflective features that are either results of chemical or thermal variations. The basic stratifications (220, 400, 660, crust) are just a start! ...
Chapter 2 Lecture Powerpoint Handout
... growth rate of human fingernails • The rates of movement changes over time • North American plate along the San Andreas fault about 3.5 cm (1.4 in.) per year • When rough edges along the plate move quickly, an earthquake may be produced • Often slow creeping movement • The direction of movement chan ...
... growth rate of human fingernails • The rates of movement changes over time • North American plate along the San Andreas fault about 3.5 cm (1.4 in.) per year • When rough edges along the plate move quickly, an earthquake may be produced • Often slow creeping movement • The direction of movement chan ...
Cause of Earthquakes
... Movement in areas along the fault plane stops (fault sticks). Elastic energy is stored in the rock as the rock becomes deformed and bends, much like a bent stick. When the elastic strain built up along the fault exceeds the elastic limit, the rock will break or slip at its weakest point which ...
... Movement in areas along the fault plane stops (fault sticks). Elastic energy is stored in the rock as the rock becomes deformed and bends, much like a bent stick. When the elastic strain built up along the fault exceeds the elastic limit, the rock will break or slip at its weakest point which ...
Earthquake Notes
... Seismic Waves: There are 3 types of seismic waves: ______________________________________________________ • _SEISMIC WAVES___ are waves generated by an earthquake that travel through the Earth. These waves can cause the ground to move forward, backward, up, down, and even to ripple. Seismic Waves ar ...
... Seismic Waves: There are 3 types of seismic waves: ______________________________________________________ • _SEISMIC WAVES___ are waves generated by an earthquake that travel through the Earth. These waves can cause the ground to move forward, backward, up, down, and even to ripple. Seismic Waves ar ...
chpt 17 continental drift
... spreading is a real phenomenon – the Earth’s lithosphere is in motion! ...
... spreading is a real phenomenon – the Earth’s lithosphere is in motion! ...
Answers to Earthquake Lab - Westerville City Schools
... Earthquakes occur because of a sudden release of stored energy. This energy has built up over long periods of time as a result of tectonic forces within the earth. Most earthquakes take place along faults in the upper 25 miles of the earth's surface when one side rapidly moves relative to the other ...
... Earthquakes occur because of a sudden release of stored energy. This energy has built up over long periods of time as a result of tectonic forces within the earth. Most earthquakes take place along faults in the upper 25 miles of the earth's surface when one side rapidly moves relative to the other ...
A seismic refraction study of the Cocos plate offshore Nicaragua and
... 1. Steep subduction beneath Nicaragua leads to increased bending, faulting of downgoing Cocos plate. 2. Mantle of downgoing plate is serpentinized at the outer rise of the Middle American Trench. 3. Water is released from subducting slab mantle at 100 km depth, where serpentinite breaks down. 4. Wat ...
... 1. Steep subduction beneath Nicaragua leads to increased bending, faulting of downgoing Cocos plate. 2. Mantle of downgoing plate is serpentinized at the outer rise of the Middle American Trench. 3. Water is released from subducting slab mantle at 100 km depth, where serpentinite breaks down. 4. Wat ...
Geology and the Earth (Con`t.)
... Density = medium Composition is silicon and oxygen-based but also includes iron and magnesium. Consistency is plastic. Contains two parts, Upper and Lower Mantle. CORE - Inner layer Density = high Composition is primarily iron and nickel. Contains two parts Inner core is solid. Outer core is liquid. ...
... Density = medium Composition is silicon and oxygen-based but also includes iron and magnesium. Consistency is plastic. Contains two parts, Upper and Lower Mantle. CORE - Inner layer Density = high Composition is primarily iron and nickel. Contains two parts Inner core is solid. Outer core is liquid. ...
12-1
... a. a boundary along which two continental plates converge, diverge, or move horizontally in opposite directions b. a boundary along which plates move away from each other c. an environment in which stress on rock is the greatest d. a boundary along which plates move toward each other and collide ...
... a. a boundary along which two continental plates converge, diverge, or move horizontally in opposite directions b. a boundary along which plates move away from each other c. an environment in which stress on rock is the greatest d. a boundary along which plates move toward each other and collide ...
Lecture 45 - Earth and Atmospheric Sciences
... For example, the K/U ratio in both the mantle and crust is about 13,000. Knowing U, we can estimate K. Also, the 40Ar in the atmosphere provides a minimum estimate of K in the Earth as 120 ppm. The Rb/Sr ratio can be estimated from 87Sr/86Sr ratios and the intersection of the mantle array with εNd = ...
... For example, the K/U ratio in both the mantle and crust is about 13,000. Knowing U, we can estimate K. Also, the 40Ar in the atmosphere provides a minimum estimate of K in the Earth as 120 ppm. The Rb/Sr ratio can be estimated from 87Sr/86Sr ratios and the intersection of the mantle array with εNd = ...
Essential Question #3 Review Sheet
... Username is your school e-mail address Password is central You should be able to: 1. Define and give examples (agents) of weathering, erosion and deposition. 2. Identify steps and process of the rock cycle. 3. Label a diagram of the inside of the Earth. 4. Describe the theories of Continental Dr ...
... Username is your school e-mail address Password is central You should be able to: 1. Define and give examples (agents) of weathering, erosion and deposition. 2. Identify steps and process of the rock cycle. 3. Label a diagram of the inside of the Earth. 4. Describe the theories of Continental Dr ...
Earthquakes
... • Geologists are beginning to understand the answer. The New Madrid Fault Zone is part of an ancient plate boundary. In this area, the North American Plate tried to form a divergent plate boundary about 500 million years ago. The splitting stopped before new plates could form. • The faults in the Ne ...
... • Geologists are beginning to understand the answer. The New Madrid Fault Zone is part of an ancient plate boundary. In this area, the North American Plate tried to form a divergent plate boundary about 500 million years ago. The splitting stopped before new plates could form. • The faults in the Ne ...
Deformation in the Lower Crust of the San Andreas Fault System in
... Hosgri fault system (17), a potential precursor of the SAF. Plate motions are assumed to be driven primarily through the convective flow in the mantle, but seismicity is observed primarily in the upper crust. Having strength reside mostly in the upper crust is consistent with the limited depth of se ...
... Hosgri fault system (17), a potential precursor of the SAF. Plate motions are assumed to be driven primarily through the convective flow in the mantle, but seismicity is observed primarily in the upper crust. Having strength reside mostly in the upper crust is consistent with the limited depth of se ...
Subduction and collision processes in the Central Andes
... Several seismic networks were operated between 1994 and 1997 in northern Chile, southern Bolivia and northwestern Argentina (Fig. 1) for periods ranging from two months to one year. Receiver functions (RFs) (P-to-S converted waves isolated from the incident teleseismic P waves) are commonly used to ...
... Several seismic networks were operated between 1994 and 1997 in northern Chile, southern Bolivia and northwestern Argentina (Fig. 1) for periods ranging from two months to one year. Receiver functions (RFs) (P-to-S converted waves isolated from the incident teleseismic P waves) are commonly used to ...
Your continued donations keep Wikipedia running! Reflection
... usually magnetic tape. The general principle is similar to recording voice data using a microphone onto a tape recorder for a set period of time. Once the data is recorded onto tape, it can then be processed using specialist software which will result in processed seismic profiles being produced. Th ...
... usually magnetic tape. The general principle is similar to recording voice data using a microphone onto a tape recorder for a set period of time. Once the data is recorded onto tape, it can then be processed using specialist software which will result in processed seismic profiles being produced. Th ...
Slide 1 - Cloudfront.net
... building’s movement. Base isolators at the base of the building absorb seismic waves and prevent the waves from traveling through the building. Steel cross braces counteract pressure that pushes and pulls at the side fo a building during an earthquake. Pipes that have flexible joints are able ot ben ...
... building’s movement. Base isolators at the base of the building absorb seismic waves and prevent the waves from traveling through the building. Steel cross braces counteract pressure that pushes and pulls at the side fo a building during an earthquake. Pipes that have flexible joints are able ot ben ...
Chapter 11 - Wide-angle refraction and reflection - U
... of fluids, so are useful, for example, for studying hydrocarbon reservoirs. Two main techniques that use earthquake sources are in common use today. The first is to use microearthquakes to make 3D tomographic maps of small volumes. This is only useful where the target area of interest is in the same ...
... of fluids, so are useful, for example, for studying hydrocarbon reservoirs. Two main techniques that use earthquake sources are in common use today. The first is to use microearthquakes to make 3D tomographic maps of small volumes. This is only useful where the target area of interest is in the same ...
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.