blocks of crust slide past each other with no up or down motion
... • Weathered or broken down rock and other ...
... • Weathered or broken down rock and other ...
Plate Tectonics and Continental Drift
... (1) Just below the crust (2) Relatively cold by virtue of being near the cool surface (3) Is chemically different than most of the mantle due to the extraction of melt that produced the crust, and is therefore thought to be anomalously strong (i.e., resistant to deformation). MOHO (4) Mohorovičić Di ...
... (1) Just below the crust (2) Relatively cold by virtue of being near the cool surface (3) Is chemically different than most of the mantle due to the extraction of melt that produced the crust, and is therefore thought to be anomalously strong (i.e., resistant to deformation). MOHO (4) Mohorovičić Di ...
File
... process where the ocean floor sinks back down into the mantle. When convection currents in the mantle make tectonic plates pull apart and it can create 51. Divergent boundary land forms such as rift valleys, volcanoes, and mid-ocean ridges When convection currents in the mantle make tectonic plates ...
... process where the ocean floor sinks back down into the mantle. When convection currents in the mantle make tectonic plates pull apart and it can create 51. Divergent boundary land forms such as rift valleys, volcanoes, and mid-ocean ridges When convection currents in the mantle make tectonic plates ...
Editorial - The Journal of Indian Geophysical Union
... direction. Seafloor spreading is the mechanism behind this phenomenon. As new magma forces its way up to the surface, magnetized minerals in the liquid rock orient along the Earth’s magnetic field and then harden as the lava cools. As spreading continues, the material moves away from the spreading z ...
... direction. Seafloor spreading is the mechanism behind this phenomenon. As new magma forces its way up to the surface, magnetized minerals in the liquid rock orient along the Earth’s magnetic field and then harden as the lava cools. As spreading continues, the material moves away from the spreading z ...
1st Semester Post Test Study Guide 2010 – 2011 KEY 1. Define
... 24. List and describe the three types of evidence Wegener used to support his theory of Continental Drift. Why was his theory not accepted? Evidence from landforms, fossils, climate changes; no explanation for cause of movement 25. What causes the lithospheric plates to move? Convection currents in ...
... 24. List and describe the three types of evidence Wegener used to support his theory of Continental Drift. Why was his theory not accepted? Evidence from landforms, fossils, climate changes; no explanation for cause of movement 25. What causes the lithospheric plates to move? Convection currents in ...
Hot Spot Volcanism on Venus, Earth and Mars
... occurred in the 1st b.y. However, there is evidence for recent volcanism within the last 1 m.y. or possibly even more recent. Possible heat sources include sequestering of heat producing elements in deep layers that form in an initial magna ocean or temperature-dependent rheology with specific chara ...
... occurred in the 1st b.y. However, there is evidence for recent volcanism within the last 1 m.y. or possibly even more recent. Possible heat sources include sequestering of heat producing elements in deep layers that form in an initial magna ocean or temperature-dependent rheology with specific chara ...
Plate Tectonics ~ Chapter 19 Assignment
... 10. What is Pangea? When Pangea divided into two main pieces, what were they called? The giant super-continent when all landmasses were together. Laurasia – North and Gondwanaland – South 11. Please draw the diagrams in figure19.2 12. Explain 4 reasons why Wegeners theory was not initially accepted. ...
... 10. What is Pangea? When Pangea divided into two main pieces, what were they called? The giant super-continent when all landmasses were together. Laurasia – North and Gondwanaland – South 11. Please draw the diagrams in figure19.2 12. Explain 4 reasons why Wegeners theory was not initially accepted. ...
Unit 3 Geochemical Cycles in the Earth`s System
... • ________– small area, changed rocks which directly contact the heat or pressure • ________ – larger area ex: tectonic mv’t ...
... • ________– small area, changed rocks which directly contact the heat or pressure • ________ – larger area ex: tectonic mv’t ...
Practice20m
... 8) All of the following must be explained by any acceptable hypothesis of the Moon’s origin EXCEPT: a) why the Moon’s orbit is inclined relative to the Earth’s orbit around the Sun. b) why the Earth and the Moon differ chemically. c) why the Moon lacks an atmosphere.. d) why the Earth has the great ...
... 8) All of the following must be explained by any acceptable hypothesis of the Moon’s origin EXCEPT: a) why the Moon’s orbit is inclined relative to the Earth’s orbit around the Sun. b) why the Earth and the Moon differ chemically. c) why the Moon lacks an atmosphere.. d) why the Earth has the great ...
Whadda Ya Know `Bout Geology
... trends - corresponding roughly to the collision/separation events - starting in the Southwest corner of the state and arcing to the Northeast. The White Mountains were created starting about 300 million years ago when the North American tectonic plate collided with the African and European plates, p ...
... trends - corresponding roughly to the collision/separation events - starting in the Southwest corner of the state and arcing to the Northeast. The White Mountains were created starting about 300 million years ago when the North American tectonic plate collided with the African and European plates, p ...
Document
... 1. Compare and contrast uniformitarianism and catastrophism 2. Diagram the four basic internal structures of the earth. Describe the characteristics of each layer in terms of thickness, composition, and whether the layers are solid ,liquid or plastic. 3. What percent of the earth's mass does the cru ...
... 1. Compare and contrast uniformitarianism and catastrophism 2. Diagram the four basic internal structures of the earth. Describe the characteristics of each layer in terms of thickness, composition, and whether the layers are solid ,liquid or plastic. 3. What percent of the earth's mass does the cru ...
Earth Science Unit Test 8.E.5A
... d. The remains of Mesosaurus were carried across the ocean by predators. 14. (8.E.5B.1) Which provides the best evidence for the theory that faults and volcanoes are results of tectonic plate interactions? a. Faults on tectonic plates are in constant motion, but volcanoes may not erupt for many year ...
... d. The remains of Mesosaurus were carried across the ocean by predators. 14. (8.E.5B.1) Which provides the best evidence for the theory that faults and volcanoes are results of tectonic plate interactions? a. Faults on tectonic plates are in constant motion, but volcanoes may not erupt for many year ...
Getting to Know: Plate Tectonics
... move at extremely slow rates, which is why we cannot feel them moving. However, we can witness their effects. ...
... move at extremely slow rates, which is why we cannot feel them moving. However, we can witness their effects. ...
10-3 Directed Reading
... 14. What is found at the boundaries of a terrane? _______________________________________________________________ 15. Describe the magnetic properties of a terrane. _______________________________________________________________ 16. What happens when a tectonic plate carrying a terrane subducts unde ...
... 14. What is found at the boundaries of a terrane? _______________________________________________________________ 15. Describe the magnetic properties of a terrane. _______________________________________________________________ 16. What happens when a tectonic plate carrying a terrane subducts unde ...
Plate Tectonics, Tsunamis, and Earthquakes
... • A tsunami is a series of sea waves most commonly caused by an earthquake beneath the sea floor • In the open ocean, tsunami waves travel at speeds of up to 600 miles per hour • The first wave is often not the largest • Successive waves may be spaced many minutes (up to 30-40 mins) apart and contin ...
... • A tsunami is a series of sea waves most commonly caused by an earthquake beneath the sea floor • In the open ocean, tsunami waves travel at speeds of up to 600 miles per hour • The first wave is often not the largest • Successive waves may be spaced many minutes (up to 30-40 mins) apart and contin ...
Document
... 14. What is found at the boundaries of a terrane? _______________________________________________________________ 15. Describe the magnetic properties of a terrane. _______________________________________________________________ 16. What happens when a tectonic plate carrying a terrane subducts unde ...
... 14. What is found at the boundaries of a terrane? _______________________________________________________________ 15. Describe the magnetic properties of a terrane. _______________________________________________________________ 16. What happens when a tectonic plate carrying a terrane subducts unde ...
contents - Less Stress More Success
... The crust is broken into plates. These plates move. They separate, collide and slide past each other. The plates are carried about by convection currents in the mantle. ...
... The crust is broken into plates. These plates move. They separate, collide and slide past each other. The plates are carried about by convection currents in the mantle. ...
Earthquakes - Leon County Schools
... • A type of seismic wave that compresses and expands the ground • The first wave to arrive at an earthquake http://daphne.meccahosting.com/~a0000e89/insideearth2.htm ...
... • A type of seismic wave that compresses and expands the ground • The first wave to arrive at an earthquake http://daphne.meccahosting.com/~a0000e89/insideearth2.htm ...
Chapter 2: The Earth
... The total amount of water on Earth doesn’t change, however, the Earth’s water is constantly moving– from the oceans to the air, to the ground and finally back to the oceans, this is known as the Water Cycle. The sun drives the cycle by evaporating water from Earth’s surface. Evaporation is the chang ...
... The total amount of water on Earth doesn’t change, however, the Earth’s water is constantly moving– from the oceans to the air, to the ground and finally back to the oceans, this is known as the Water Cycle. The sun drives the cycle by evaporating water from Earth’s surface. Evaporation is the chang ...
Disasters - The Bored of Studies Community
... soils. Mostly solid rock, rigid and contains high strength. 5-7km Mantle: Partially molten rock. 500 to 2000 degrees. It is 2900km thick. The asthenosphere is the hot, soft, semi-fluid upper part of the mantle. Outer core: molten iron and nickel. 4000 to 6000 degrees. It is 2300km thick. Inner core: ...
... soils. Mostly solid rock, rigid and contains high strength. 5-7km Mantle: Partially molten rock. 500 to 2000 degrees. It is 2900km thick. The asthenosphere is the hot, soft, semi-fluid upper part of the mantle. Outer core: molten iron and nickel. 4000 to 6000 degrees. It is 2300km thick. Inner core: ...
Geophysics
Geophysics /dʒiːoʊfɪzɪks/ is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis. The term geophysics sometimes refers only to the geological applications: Earth's shape; its gravitational and magnetic fields; its internal structure and composition; its dynamics and their surface expression in plate tectonics, the generation of magmas, volcanism and rock formation. However, modern geophysics organizations use a broader definition that includes the water cycle including snow and ice; fluid dynamics of the oceans and the atmosphere; electricity and magnetism in the ionosphere and magnetosphere and solar-terrestrial relations; and analogous problems associated with the Moon and other planets.Although geophysics was only recognized as a separate discipline in the 19th century, its origins go back to ancient times. The first magnetic compasses were made from lodestones, while more modern magnetic compasses played an important role in the history of navigation. The first seismic instrument was built in 132 BC. Isaac Newton applied his theory of mechanics to the tides and the precession of the equinox; and instruments were developed to measure the Earth's shape, density and gravity field, as well as the components of the water cycle. In the 20th century, geophysical methods were developed for remote exploration of the solid Earth and the ocean, and geophysics played an essential role in the development of the theory of plate tectonics.Geophysics is applied to societal needs, such as mineral resources, mitigation of natural hazards and environmental protection. Geophysical survey data are used to analyze potential petroleum reservoirs and mineral deposits, locate groundwater, find archaeological relics, determine the thickness of glaciers and soils, and assess sites for environmental remediation.