Volcano ppt
... rebound to an undeformed shape – Energy is released in waves that radiate outward from the fault ...
... rebound to an undeformed shape – Energy is released in waves that radiate outward from the fault ...
PPT - Hss-1.us
... • There are two current theories of how the Eath's magnetic field developed and is maintained. They are the: • Dynamo Theory: The theory that explains the origin of the Earth's main magnetic field in terms of a self-sustaining dynamo. In this dynamo mechanism, fluid motion in the Earth's outer core ...
... • There are two current theories of how the Eath's magnetic field developed and is maintained. They are the: • Dynamo Theory: The theory that explains the origin of the Earth's main magnetic field in terms of a self-sustaining dynamo. In this dynamo mechanism, fluid motion in the Earth's outer core ...
Glencoe Chapter 9
... Scientist read _____________ to determine the difference in the arrival time of the ___________ wave and the _____________ wave. ...
... Scientist read _____________ to determine the difference in the arrival time of the ___________ wave and the _____________ wave. ...
Guided Notes for Forces Within Earth
... Focus: the point within the earth’s crust where an earthquake originates Epicenter: the point on the earth’s surface directly above the focus ...
... Focus: the point within the earth’s crust where an earthquake originates Epicenter: the point on the earth’s surface directly above the focus ...
Chapter 17 - Cenozoic - Quaternary
... 5. tremendous weight of glaciers causes continental crust to subside into mantle; bounces back when glaciers retreat. 6. large lakes were present in Pleistocene related to borders of glaciers. 7. current theory- onset of ice ages due to irregularities in Earth’s rotation and orbit. 8. mineral resour ...
... 5. tremendous weight of glaciers causes continental crust to subside into mantle; bounces back when glaciers retreat. 6. large lakes were present in Pleistocene related to borders of glaciers. 7. current theory- onset of ice ages due to irregularities in Earth’s rotation and orbit. 8. mineral resour ...
Testing the plate tectonics model Evidence for the plate tectonics
... What happens at a convergent plate boundary 1. Oceanic-continental subduction – Denser oceanic lithosphere sinks into the asthenosphere under more buoyant continental lithosphere – Pockets of magma develop and rise – Continental volcanic arcs – chain of volcanoes a short distance from plate boundar ...
... What happens at a convergent plate boundary 1. Oceanic-continental subduction – Denser oceanic lithosphere sinks into the asthenosphere under more buoyant continental lithosphere – Pockets of magma develop and rise – Continental volcanic arcs – chain of volcanoes a short distance from plate boundar ...
LAYERS OF THE EARTH
... The crust makes up 1% of the Earth. The crust of the Earth is broken into many pieces called plates. 5 to 25 miles thick and up to 1,600 F Two types of crust Oceanic and Continental ...
... The crust makes up 1% of the Earth. The crust of the Earth is broken into many pieces called plates. 5 to 25 miles thick and up to 1,600 F Two types of crust Oceanic and Continental ...
Slide 1
... On the next slide you will see a map of the world. Discuss with each other where you think you get earthquake activity and where you get no earthquakes. ...
... On the next slide you will see a map of the world. Discuss with each other where you think you get earthquake activity and where you get no earthquakes. ...
Geology * Part II - Hatboro
... 3. The Asthenosphere lies below the lithosphere and is made up of the soft layer of the mantle. ...
... 3. The Asthenosphere lies below the lithosphere and is made up of the soft layer of the mantle. ...
The surface of Earth is constantly being changed. Rocks are
... part is solid. Scientists think that heat rising up from the core may be one cause of earthquakes. They also think the inner core spins in place. It creates an invisible magnetic shield that protects us from the sun. The lithosphere covers Earth in a thin layer, which is split into sections called p ...
... part is solid. Scientists think that heat rising up from the core may be one cause of earthquakes. They also think the inner core spins in place. It creates an invisible magnetic shield that protects us from the sun. The lithosphere covers Earth in a thin layer, which is split into sections called p ...
Project #1: Inversion of multiple geophysical data for composition
... Project #2: Evolution of the oceanic lithosphere from thermodynamicthermomechanical modelling An understanding of the creation, transportation and destruction of the oceanic lithosphere (~ 60% of Earth’s surface) is a cornerstone of the plate tectonics paradigm. However, a complete physical model ca ...
... Project #2: Evolution of the oceanic lithosphere from thermodynamicthermomechanical modelling An understanding of the creation, transportation and destruction of the oceanic lithosphere (~ 60% of Earth’s surface) is a cornerstone of the plate tectonics paradigm. However, a complete physical model ca ...
Why Are There Earthquakes?
... Earthquakes are natural events. They usually happen very quickly. In fact, most earthquakes last less than thirty seconds. You may be surprised to hear that earthquakes are not rare. In fact, earthquakes happen every day somewhere in the world. Most of them are weak. There are times, however, when a ...
... Earthquakes are natural events. They usually happen very quickly. In fact, most earthquakes last less than thirty seconds. You may be surprised to hear that earthquakes are not rare. In fact, earthquakes happen every day somewhere in the world. Most of them are weak. There are times, however, when a ...
Geology of the Hawaiian Islands
... Why was Continental Drift not accepted? Because it was difficult to understand how continents could move. What did we learn to make us more willing to accept the idea that the continents have moved? ...
... Why was Continental Drift not accepted? Because it was difficult to understand how continents could move. What did we learn to make us more willing to accept the idea that the continents have moved? ...
Chapter 3
... The steep rocky coast rising almost vertically above sea water is called sea cliff. The sea waves deposit sediments along the shores forming beaches. ...
... The steep rocky coast rising almost vertically above sea water is called sea cliff. The sea waves deposit sediments along the shores forming beaches. ...
INTERNAL STRUCTURE OF THE EARTH AND PLATE TECTONICS
... Internal Structure Continued • Crust – Top of the lithosphere – Less dense than mantle – Oceanic crust » 6-7 km thick » More dense than continental crust » Less than 200,000 My years old ...
... Internal Structure Continued • Crust – Top of the lithosphere – Less dense than mantle – Oceanic crust » 6-7 km thick » More dense than continental crust » Less than 200,000 My years old ...
220 12LectureDetails11
... be the same for both continents and oceans. Consequently, mountains stick up a little bit and down a lot. Once isostatic equilibrium is achieved, the height of a mountain belt will depend on the density and total thickness of continental crust beneath it. Bottom Line: Mountains stick up because the ...
... be the same for both continents and oceans. Consequently, mountains stick up a little bit and down a lot. Once isostatic equilibrium is achieved, the height of a mountain belt will depend on the density and total thickness of continental crust beneath it. Bottom Line: Mountains stick up because the ...
Student Lecture Notes CH 11 all
... Mountain Building at Divergent Boundaries - along ocean ridges = ______ type mountains. Continental Accretion-process when ________ collide with & stay connected to a_______ Terranes ...
... Mountain Building at Divergent Boundaries - along ocean ridges = ______ type mountains. Continental Accretion-process when ________ collide with & stay connected to a_______ Terranes ...
Vocab-Chapter 7 - Wachter Middle School
... ____________________________ 3. The theory that the Earth’s lithosphere is divided into tectonic plates that move around on top of the asthenosphere. ____________________________ 4. The amount of force per unit area that is put on a given material. ____________________________ 5. The bending of rock ...
... ____________________________ 3. The theory that the Earth’s lithosphere is divided into tectonic plates that move around on top of the asthenosphere. ____________________________ 4. The amount of force per unit area that is put on a given material. ____________________________ 5. The bending of rock ...
rocks and minerals quiz
... 8. Less dense continental crust floats higher than more dense oceanic crust. This is an example of: (A) continental drift (B) tectonic plates (C) convection cells (D) isostasy (E) subduction 9. __________ is the theory that states a super-continent named Pangea broke up into the modern continents. ( ...
... 8. Less dense continental crust floats higher than more dense oceanic crust. This is an example of: (A) continental drift (B) tectonic plates (C) convection cells (D) isostasy (E) subduction 9. __________ is the theory that states a super-continent named Pangea broke up into the modern continents. ( ...
Chapter 7, Section 1 Directed Reading A
... 18. Complete Sentence - Why are tectonic plates like the pieces of a jigsaw puzzle? _______________________________________________________________ _______________________________________________________________ 19. Complete Sentence - What are the two kinds of crust that a tectonic plate may contai ...
... 18. Complete Sentence - Why are tectonic plates like the pieces of a jigsaw puzzle? _______________________________________________________________ _______________________________________________________________ 19. Complete Sentence - What are the two kinds of crust that a tectonic plate may contai ...
Post-glacial rebound
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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.