Natural Hazards – Earthquakes, Volcanoes and
... An earthquake is the sudden shaking of the ground due to the movement of tectonic plates. The convection currents in the mantle causes the plates to move away or towards each other, or slide past each other. Frictions occur along plate boundaries and build up pressure in the rocks. ...
... An earthquake is the sudden shaking of the ground due to the movement of tectonic plates. The convection currents in the mantle causes the plates to move away or towards each other, or slide past each other. Frictions occur along plate boundaries and build up pressure in the rocks. ...
Chapter_1_Revised - Earth and Space Science GIS and stuff
... surface absorbs, called insolation, varies with latitude, producing a temperature gradient between the poles and equator. The resulting atmospheric and oceanic circulation produces substantial pole-ward transfer of heat that delivers warm air and water to higher latitudes. Because Earth’s total heat ...
... surface absorbs, called insolation, varies with latitude, producing a temperature gradient between the poles and equator. The resulting atmospheric and oceanic circulation produces substantial pole-ward transfer of heat that delivers warm air and water to higher latitudes. Because Earth’s total heat ...
Sec 14.3 - Highland High School
... Climatic changes might also be triggered by changes in Earth’s axis and orbit. The shape of Earth’s elliptical orbit appears to change, becoming more elliptical, then more circular, over the course of a ...
... Climatic changes might also be triggered by changes in Earth’s axis and orbit. The shape of Earth’s elliptical orbit appears to change, becoming more elliptical, then more circular, over the course of a ...
Plate Tectonics The unifying concept of the Earth sciences. Plate
... horizontal movements of the outer portions of the Earth are responsible for the major topographical features such as mountains and ocean basins. Proposed by Alfred Wegner in 1912 based on his observation of drifting sheets of ice. ...
... horizontal movements of the outer portions of the Earth are responsible for the major topographical features such as mountains and ocean basins. Proposed by Alfred Wegner in 1912 based on his observation of drifting sheets of ice. ...
Geography - Makemynewspaper
... actually 12 different moving plates. These plates will push together in a process called convection, move apart in a process called divergent, or one tectonic plate will slide under the other in a process know as subduction. These processes cause land forms to form. The Andes, Himalaya, Alps, and th ...
... actually 12 different moving plates. These plates will push together in a process called convection, move apart in a process called divergent, or one tectonic plate will slide under the other in a process know as subduction. These processes cause land forms to form. The Andes, Himalaya, Alps, and th ...
Word format
... If we look at a map of the world distribution of earthquakes, we can see that they appear to cluster greatly into zones of high earthquake activity. These zones indicate the ________________________________. The tectonic plates are only able to slide past each other because of the faults in between ...
... If we look at a map of the world distribution of earthquakes, we can see that they appear to cluster greatly into zones of high earthquake activity. These zones indicate the ________________________________. The tectonic plates are only able to slide past each other because of the faults in between ...
pdf format
... If we look at a map of the world distribution of earthquakes, we can see that they appear to cluster greatly into zones of high earthquake activity. These zones indicate the ________________________________. The tectonic plates are only able to slide past each other because of the faults in between ...
... If we look at a map of the world distribution of earthquakes, we can see that they appear to cluster greatly into zones of high earthquake activity. These zones indicate the ________________________________. The tectonic plates are only able to slide past each other because of the faults in between ...
Plate tectonics
... Identify the role of oceanic ridges, transform faults and deep-sea trenches in defining the edges of lithospheric plates. Understand the importance of asthenospheric thermal convection in plate tectonics and the resulting compression or tensional forces at the plate boundaries. Explain the distribut ...
... Identify the role of oceanic ridges, transform faults and deep-sea trenches in defining the edges of lithospheric plates. Understand the importance of asthenospheric thermal convection in plate tectonics and the resulting compression or tensional forces at the plate boundaries. Explain the distribut ...
02_PlateTectonics-MeltingAGI10th-W2017
... C. Look again at the JPL UTM world map. Draw a dot with initials and a vector showing the general (average) direction of motion for how: South America=SA, Africa=AF, Europe=EU, Australia=AU, Asia=AS and North America=NA are currently moving. ...
... C. Look again at the JPL UTM world map. Draw a dot with initials and a vector showing the general (average) direction of motion for how: South America=SA, Africa=AF, Europe=EU, Australia=AU, Asia=AS and North America=NA are currently moving. ...
Chapter 3 HW (due 8 Feb for Section 5803, 9 Feb for Section 5804)
... 10. What idea did John Tuzo Wilson propose that integrated continental drift and seafloor spreading? a) Earth's crust is composed of tens of thousands of tiny platelets that move past each other. b) Earth's crust is composed of about a dozen huge plates that float on the asthenosphere. c) The contin ...
... 10. What idea did John Tuzo Wilson propose that integrated continental drift and seafloor spreading? a) Earth's crust is composed of tens of thousands of tiny platelets that move past each other. b) Earth's crust is composed of about a dozen huge plates that float on the asthenosphere. c) The contin ...
Chapter 20: The Earth Through Time
... Heating would cause the Earth that had been covered largely by continental crust to expand and then the continental crust would crack into fragments. As expansion continued, the cracks would grow into ocean basins and basaltic magma from the mantle would rise through the cracks to form the oceanic c ...
... Heating would cause the Earth that had been covered largely by continental crust to expand and then the continental crust would crack into fragments. As expansion continued, the cracks would grow into ocean basins and basaltic magma from the mantle would rise through the cracks to form the oceanic c ...
strain
... Piston-spring in seriesApply stress, instantaneous strain, followed by slower (time dependant) strain. Remove stress, instantaneous partial recovery, followed by slower full recovery. Time to full recovery (Maxwell relaxation time) t = /G (viscosity/rigidity) 1021/1011 = 1010s = 1000 years e.g. upl ...
... Piston-spring in seriesApply stress, instantaneous strain, followed by slower (time dependant) strain. Remove stress, instantaneous partial recovery, followed by slower full recovery. Time to full recovery (Maxwell relaxation time) t = /G (viscosity/rigidity) 1021/1011 = 1010s = 1000 years e.g. upl ...
Patterns of Crustal Activity
... The third type of earthquake is related to the collision of oceanic and continental plates. One plate is thrust or subducted under the other plate so that a deep ocean trench is produced. In the Philippines, ocean trenches are associated with curved volcanic island arcs on the landward plate, for ex ...
... The third type of earthquake is related to the collision of oceanic and continental plates. One plate is thrust or subducted under the other plate so that a deep ocean trench is produced. In the Philippines, ocean trenches are associated with curved volcanic island arcs on the landward plate, for ex ...
Abstract - gemoc - Macquarie University
... environment favourable for the formation of many convergent-margin-related ore deposits, but not the environment required to preserve them. A period of major mantle plume activity (possibly in response to earlier subduction) created thick, depleted, buoyant and stiff SCLM in the Paleo- to Mesoarchea ...
... environment favourable for the formation of many convergent-margin-related ore deposits, but not the environment required to preserve them. A period of major mantle plume activity (possibly in response to earlier subduction) created thick, depleted, buoyant and stiff SCLM in the Paleo- to Mesoarchea ...
Structure of the Lithosphere and the Sedimentary Record: Where do
... The regional R2 pattern of the MD, VA, Delaware portions of the Salisbury Embayment is quite different from N.J. and requires several tectonic events, including a long-term subsidence event in the mid to Late Miocene. The center of the Eocene impact crater is showing the opposite sense of motion, su ...
... The regional R2 pattern of the MD, VA, Delaware portions of the Salisbury Embayment is quite different from N.J. and requires several tectonic events, including a long-term subsidence event in the mid to Late Miocene. The center of the Eocene impact crater is showing the opposite sense of motion, su ...
The origin of the Dead Sea rift
... upper boundary (topography) was assumed to be free, i.e. forces acting on this boundary are equal to zero. Forces and velocities are assumed to be continuous on all internal boundaries. The existence of an inviscid, as compared with iithosphere, asthenosphere provides a state of a zero shear force a ...
... upper boundary (topography) was assumed to be free, i.e. forces acting on this boundary are equal to zero. Forces and velocities are assumed to be continuous on all internal boundaries. The existence of an inviscid, as compared with iithosphere, asthenosphere provides a state of a zero shear force a ...
Modelling stress accumulation and crustal deformation associated
... loading processes at a seismic zone on a transform plate boundary subject to steady relative plate motion (Matsu'ura and Sato 1997[2]). In this model, the seismic zone is represented by a locked patch with a nite length on an in nitely long plate interface. The simulation shows that stress accumula ...
... loading processes at a seismic zone on a transform plate boundary subject to steady relative plate motion (Matsu'ura and Sato 1997[2]). In this model, the seismic zone is represented by a locked patch with a nite length on an in nitely long plate interface. The simulation shows that stress accumula ...
Earthquake Research Assignment
... 4. How many of the earthquakes that occurred today fell on or near a plate boundary? Questions about Montana’s Earthquake History *****Read the USGS (United States Geological Survey) article on Montana’s Earthquake History and then answer the questions below. 5. Since 1925, how many earthquakes has ...
... 4. How many of the earthquakes that occurred today fell on or near a plate boundary? Questions about Montana’s Earthquake History *****Read the USGS (United States Geological Survey) article on Montana’s Earthquake History and then answer the questions below. 5. Since 1925, how many earthquakes has ...
Lesson 2 - Humanities.Com
... parts of the crust. • This is where most tectonic activity occurs. • The direction of plate movement determines the type of plate margin and the The Where three types ofmost plate of margin we will look at in is the the world’s tectonic type of tectonic more detail are: activity? Why is this? activi ...
... parts of the crust. • This is where most tectonic activity occurs. • The direction of plate movement determines the type of plate margin and the The Where three types ofmost plate of margin we will look at in is the the world’s tectonic type of tectonic more detail are: activity? Why is this? activi ...
Hydrological Signals due to the Seasonal Variation of Lake Nasser
... Impounding of Lake Nasser started in 1964 and reached the highest water level so far in 1978 with a capacity of 133.8 km3. It is extending 500 km in southern Egypt and northern Sudan, thus forming the second largest man-made lake in the world. The water level fluctuates between 168m and 178m, the cy ...
... Impounding of Lake Nasser started in 1964 and reached the highest water level so far in 1978 with a capacity of 133.8 km3. It is extending 500 km in southern Egypt and northern Sudan, thus forming the second largest man-made lake in the world. The water level fluctuates between 168m and 178m, the cy ...
Lesson 22: Plate Tectonics Slide 1: Title page and learning objective
... slab sinks down into the mantle to be recycled. It is for this reason that the oceanic crust is much younger than the continental crust, which is not recycled. E.g. is the Andres mountains located in South America Ocean-ocean collision: When two oceanic plates collide, one runs over the other which ...
... slab sinks down into the mantle to be recycled. It is for this reason that the oceanic crust is much younger than the continental crust, which is not recycled. E.g. is the Andres mountains located in South America Ocean-ocean collision: When two oceanic plates collide, one runs over the other which ...
GSA-Charlotte 2012
... age-versus-depth relation for oceanic lithosphere to Berger and Winterer’s (1974) calculations for the average age of the world’s ocean floor as a function of the breakup of Pangea. In this way, they were able to broadly quantify the changes in global sea that would be caused by the cycle’s independ ...
... age-versus-depth relation for oceanic lithosphere to Berger and Winterer’s (1974) calculations for the average age of the world’s ocean floor as a function of the breakup of Pangea. In this way, they were able to broadly quantify the changes in global sea that would be caused by the cycle’s independ ...
Plate Tectonics Continental Drift
... The western margin of North America is an active area with earthquakes (yellow) and volcanic activity (red). In contrast, the eastern margin of North America is a quiet passive area with no active volcanoes and few earthquakes. We now know that the active zones coincide with the boundaries between p ...
... The western margin of North America is an active area with earthquakes (yellow) and volcanic activity (red). In contrast, the eastern margin of North America is a quiet passive area with no active volcanoes and few earthquakes. We now know that the active zones coincide with the boundaries between p ...
plate tectonics - Math/Science Nucleus
... Volcanoes and earthquakes provide the evidence for plate tectonics. Volcanoes provide a location, type of eruption, and type of rocks produced. Earthquakes emit waves that give clues to the inside of the Earth. The evidence is very different, but yet when you plot the data a picture emerges. The zo ...
... Volcanoes and earthquakes provide the evidence for plate tectonics. Volcanoes provide a location, type of eruption, and type of rocks produced. Earthquakes emit waves that give clues to the inside of the Earth. The evidence is very different, but yet when you plot the data a picture emerges. The zo ...
Post-glacial rebound
Post-glacial rebound (sometimes called continental rebound) is the rise of land masses that were depressed by the huge weight of ice sheets during the last glacial period, through a process known as isostatic depression. Post-glacial rebound and isostatic depression are different parts of a process known as either glacial isostasy, glacial isostatic adjustment, or glacioisostasy. Glacioisostasy is the solid Earth deformation associated with changes in ice mass distribution. The most obvious and direct affects of post-glacial rebound are readily apparent in northern Europe (especially Scotland, Estonia, Latvia, Fennoscandia, and northern Denmark), Siberia, Canada, the Great Lakes of Canada and the United States, the coastal region of the US state of Maine, parts of Patagonia, and Antarctica. However, through processes known as ocean siphoning and continental levering, the effects of post-glacial rebound on sea-level are felt globally far from the locations of current and former ice sheets.