6.F Post Assessment
... 1. Old oceanic crust is more dense than new oceanic crust because it is a. hot, new rock b. moving toward a deep-ocean trench c. cooled over time d. closer to the mid-ocean ridge 2. The geological theory that states that pieces of Earth’s lithosphere are in constant, slow motion is the theory of a. ...
... 1. Old oceanic crust is more dense than new oceanic crust because it is a. hot, new rock b. moving toward a deep-ocean trench c. cooled over time d. closer to the mid-ocean ridge 2. The geological theory that states that pieces of Earth’s lithosphere are in constant, slow motion is the theory of a. ...
Inside Earth: Chapter 1
... How does the process of a fault-block mountain begin? • Where two plates move away from each other, tension forces create many normal faults • When two of these normal faults form parallel to each other, a block of rock is ...
... How does the process of a fault-block mountain begin? • Where two plates move away from each other, tension forces create many normal faults • When two of these normal faults form parallel to each other, a block of rock is ...
Unit 5: Ocean Floor Structure and Plate Tectonics
... Hydrothermal vents are fractures (cracks) in the Earth’s surface where geothermally-heated water pulses through. Usually, a hydrothermal vent is found where hot magma is close to the surface crust. Hot springs, fumaroles, and geysers are all examples of geothermal vents on land. Hydrothermal vents i ...
... Hydrothermal vents are fractures (cracks) in the Earth’s surface where geothermally-heated water pulses through. Usually, a hydrothermal vent is found where hot magma is close to the surface crust. Hot springs, fumaroles, and geysers are all examples of geothermal vents on land. Hydrothermal vents i ...
Introduction to Earthquakes and Seismology
... Location method: difference in velocity of P and S waves provides method of determining epicenter. Based on Vel P > Vel S waves, the greater the distance of travel, the greater the time lag between first arrivals of P and S waves: i.e. the > diff. in arrival times, the > the distance to epicenter. ( ...
... Location method: difference in velocity of P and S waves provides method of determining epicenter. Based on Vel P > Vel S waves, the greater the distance of travel, the greater the time lag between first arrivals of P and S waves: i.e. the > diff. in arrival times, the > the distance to epicenter. ( ...
Convection Currents
... The earth is over four billion years old, and different events have occurred on earth during different periods of time. (EarthSci: 1) ...
... The earth is over four billion years old, and different events have occurred on earth during different periods of time. (EarthSci: 1) ...
Geology 101 chapter2 Plate tectonics
... upper mantle it consists of variable-sized pieces called plates with plate regions containing continental crust ...
... upper mantle it consists of variable-sized pieces called plates with plate regions containing continental crust ...
faults_heating
... On June 9, 1994, a magnitude-8.3 earthquake struck about 320 km northeast of La Paz, Bolivia, at a depth of 636 km. This earthquake, within the subduction zone between the Nazca Plate and the South American Plate, was one of deepest and largest subduction earthquakes recorded in South America. Fortu ...
... On June 9, 1994, a magnitude-8.3 earthquake struck about 320 km northeast of La Paz, Bolivia, at a depth of 636 km. This earthquake, within the subduction zone between the Nazca Plate and the South American Plate, was one of deepest and largest subduction earthquakes recorded in South America. Fortu ...
SECOND GRADE EARTHQUAKES
... Earthquake faults are zones of weakness, that "break" when stress builds up and needs to "relieve" itself. Most faults are actually zones of movement that can be hundreds of meters in width. California is well-known for its earthquakes, both in the southern and northern parts of the state. The most ...
... Earthquake faults are zones of weakness, that "break" when stress builds up and needs to "relieve" itself. Most faults are actually zones of movement that can be hundreds of meters in width. California is well-known for its earthquakes, both in the southern and northern parts of the state. The most ...
Evidence for plate tectonics
... basins and the seafloor (bathymetry) Define what convection currents are and explain the process that creates them Identify the three types of plate boundaries and the seafloor features associated with each type ...
... basins and the seafloor (bathymetry) Define what convection currents are and explain the process that creates them Identify the three types of plate boundaries and the seafloor features associated with each type ...
Modelling the initiation of sea floor spreading and formation of rifted
... Schlumberger Cambridge Research, High Cross, Madingley Road, Cambridge CB3 0EL The formation of rifted continental margins during continental breakup and the initiation of sea-floor spreading are key components of the plate tectonic cycle. The deepwaters of rifted continental margins are the frontie ...
... Schlumberger Cambridge Research, High Cross, Madingley Road, Cambridge CB3 0EL The formation of rifted continental margins during continental breakup and the initiation of sea-floor spreading are key components of the plate tectonic cycle. The deepwaters of rifted continental margins are the frontie ...
What is below the Earth`s crust
... This is as good as it's going to get. If they need more proof, I'll be happy to make up more stuff." So wrote a government scientist, effectively penning the epitaph for Yucca Mountain, Nev. That's where the Department of Energy has spent two decades and $9 billion fighting to build a permanent depo ...
... This is as good as it's going to get. If they need more proof, I'll be happy to make up more stuff." So wrote a government scientist, effectively penning the epitaph for Yucca Mountain, Nev. That's where the Department of Energy has spent two decades and $9 billion fighting to build a permanent depo ...
Constraints on the Interior Dynamics of Venus
... Predicted weathering products include calcite, quartz, dolomite, hematite and anhydrite, all with lower emissivity relative to mafic minerals in basalt. ...
... Predicted weathering products include calcite, quartz, dolomite, hematite and anhydrite, all with lower emissivity relative to mafic minerals in basalt. ...
Inside the Restless Earth
... c. At transform boundaries the plates are moving sideways past each other and large earthquakes can occur. The San Andreas fault in CA is an example. 13. Why do tectonic plates move? Explain. About how much do tectonic plates move per year? Tectonic plates move because convection occurs in the mantl ...
... c. At transform boundaries the plates are moving sideways past each other and large earthquakes can occur. The San Andreas fault in CA is an example. 13. Why do tectonic plates move? Explain. About how much do tectonic plates move per year? Tectonic plates move because convection occurs in the mantl ...
Seafloor spreading and plate tectonics are major concepts in geology
... 5. How does your answer to question 4 compare with your answer in question 3? Explain why this is so. ...
... 5. How does your answer to question 4 compare with your answer in question 3? Explain why this is so. ...
What are Earthquakes? - Lancaster City Schools
... The most destructive of these occur between the plates on the plate boundary. Shallow earthquakes also occur within the subducting plate and within the overriding plate near the plate boundary. Intermediate and Deep earthquakes: The depth range defined as “intermediate” is 100 – 300 km deep while “d ...
... The most destructive of these occur between the plates on the plate boundary. Shallow earthquakes also occur within the subducting plate and within the overriding plate near the plate boundary. Intermediate and Deep earthquakes: The depth range defined as “intermediate” is 100 – 300 km deep while “d ...
Plate C Plate D
... Activity 4: Ocean Depth and Age of Crust We have seen that as ocean crust moves away from mid-ocean ridge it gets older and deeper. We now can derive a relationship between water depth and age. 1. Make a plot of the Water Depth (D) vs. T 1/2 (where T = age of oceanic crust) on the graph below. First ...
... Activity 4: Ocean Depth and Age of Crust We have seen that as ocean crust moves away from mid-ocean ridge it gets older and deeper. We now can derive a relationship between water depth and age. 1. Make a plot of the Water Depth (D) vs. T 1/2 (where T = age of oceanic crust) on the graph below. First ...
What is the Earth made of?
... and create new crust, and often give rise to volcanoes and earthquakes. 2. Destructive plate boundaries move towards each other and the heavier oceanic plate slides under the lighter continental plate 3. Conservative plate boundaries move past each other and do not create or destroy land, but often ...
... and create new crust, and often give rise to volcanoes and earthquakes. 2. Destructive plate boundaries move towards each other and the heavier oceanic plate slides under the lighter continental plate 3. Conservative plate boundaries move past each other and do not create or destroy land, but often ...
Plate Tectonics Review With 4 Hot Spots
... Types of Plate Boundaries Divergent boundaries (also called spreading centers) are the place where two plates move apart. Convergent boundaries form where two plates move together. Transform fault boundaries are margins where two plates grind past each other without the production or destruct ...
... Types of Plate Boundaries Divergent boundaries (also called spreading centers) are the place where two plates move apart. Convergent boundaries form where two plates move together. Transform fault boundaries are margins where two plates grind past each other without the production or destruct ...
Plate Boundaries
... Earth is broken into various plates. These plates drift on the asthenosphere at very slow rates. As plates move away from each other the lithosphere thins and tears. At these divergent plate boundaries new oceanic lithosphere is created in the gaps from upwelling magma from the mantle. This upwellin ...
... Earth is broken into various plates. These plates drift on the asthenosphere at very slow rates. As plates move away from each other the lithosphere thins and tears. At these divergent plate boundaries new oceanic lithosphere is created in the gaps from upwelling magma from the mantle. This upwellin ...
Mysteries of the mountains
... The surface of the Earth consists of a number of rigid plates that move relative to each other. New oceanic crust is formed where plates move apart from each other at the mid-ocean ridges. At boundaries where plates move towards each other, the downward motion of old oceanic crust leads to earthquak ...
... The surface of the Earth consists of a number of rigid plates that move relative to each other. New oceanic crust is formed where plates move apart from each other at the mid-ocean ridges. At boundaries where plates move towards each other, the downward motion of old oceanic crust leads to earthquak ...
GEOS3101/3801 Earth`s Structure and Evolution: unit outline
... processes operating since the beginning of the Archaean. This unit focuses on information and techniques that enable an understanding of these processes. The main topics presented in this unit include: the formation and evolution of oceanic and continental lithosphere; structural deformation, magmat ...
... processes operating since the beginning of the Archaean. This unit focuses on information and techniques that enable an understanding of these processes. The main topics presented in this unit include: the formation and evolution of oceanic and continental lithosphere; structural deformation, magmat ...
A density model of the Andean subduction zone
... thrust. The marine sediments which have been affected by tectonic deformation are seen in the Eastern Cordillera and Subandean ranges with density = 2.6-2.7 g/cm3. Metamorphism and magmas of the volcanic arc affect the sediments that make up the coast, Western Cordillera, and Altiplano, with density ...
... thrust. The marine sediments which have been affected by tectonic deformation are seen in the Eastern Cordillera and Subandean ranges with density = 2.6-2.7 g/cm3. Metamorphism and magmas of the volcanic arc affect the sediments that make up the coast, Western Cordillera, and Altiplano, with density ...
Origin of Magma
... 2) How do we get basalt, andesite, dacite, and rhyolite from rocks that are very low in silica content such as peridotite? 3) How do magmas form at divergent plate margins? 4) How do magmas form at convergent plate margins? 5) How do magmas form in the middle of plates? How do the rocks of the upper ...
... 2) How do we get basalt, andesite, dacite, and rhyolite from rocks that are very low in silica content such as peridotite? 3) How do magmas form at divergent plate margins? 4) How do magmas form at convergent plate margins? 5) How do magmas form in the middle of plates? How do the rocks of the upper ...
Seismic tomography - Italo Bovolenta Editore
... waves from earthquakes recorded on thousands of seismographs all over the world to sweep Earth’s interior in many different directions and construct a three-dimensional image of what’s inside. The method enables them to find places where seismic waves speed up or slow down. They make the reasonable ...
... waves from earthquakes recorded on thousands of seismographs all over the world to sweep Earth’s interior in many different directions and construct a three-dimensional image of what’s inside. The method enables them to find places where seismic waves speed up or slow down. They make the reasonable ...
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.