Inside the Restless Earth
... 20. How do Volcanoes form? Volcanoes form at convergent boundaries when oceanic crust is subducted and forced down toward the mantle where it melts, becomes less dense, and rise back to toward the surface as magma, eventually erupting from a volcano. Volcanoes can also form along divergent boundarie ...
... 20. How do Volcanoes form? Volcanoes form at convergent boundaries when oceanic crust is subducted and forced down toward the mantle where it melts, becomes less dense, and rise back to toward the surface as magma, eventually erupting from a volcano. Volcanoes can also form along divergent boundarie ...
Layers of the Earth
... The crust – the outermost layer of the Earth, comprised of 2 types of crust - continental and oceanic. The crust has a variable thickness, being 35-70 km thick in the continents and 5-10 km thick in the ocean basins. Continental crust has a varying thickness, being thickest at mountain chains, and a ...
... The crust – the outermost layer of the Earth, comprised of 2 types of crust - continental and oceanic. The crust has a variable thickness, being 35-70 km thick in the continents and 5-10 km thick in the ocean basins. Continental crust has a varying thickness, being thickest at mountain chains, and a ...
Layers of The Earth
... The crust – the outermost layer of the Earth, comprised of 2 types of crust - continental and oceanic. The crust has a variable thickness, being 35-70 km thick in the continents and 5-10 km thick in the ocean basins. Continental crust has a varying thickness, being thickest at mountain chains, and a ...
... The crust – the outermost layer of the Earth, comprised of 2 types of crust - continental and oceanic. The crust has a variable thickness, being 35-70 km thick in the continents and 5-10 km thick in the ocean basins. Continental crust has a varying thickness, being thickest at mountain chains, and a ...
The$Earth`s$Interior The$Earth`s$Interior
... • Some originate at great depth, perhaps at the mantle-core boundary ...
... • Some originate at great depth, perhaps at the mantle-core boundary ...
Ocean Floor
... Shear waves (S-waves): travel by shearing medium they pass through. S-waves can travel only through solids since particles need to be bonded to each other to propagate wave; ...
... Shear waves (S-waves): travel by shearing medium they pass through. S-waves can travel only through solids since particles need to be bonded to each other to propagate wave; ...
4.3 PPT_EQ & Waves
... Let’s Fold and Label together The directions for the inside of the foldable is at your station ...
... Let’s Fold and Label together The directions for the inside of the foldable is at your station ...
Study Guide ANSWERS
... Mesosphere – Strong lower part of the mantle, extends from the asthenosphere into the core Outer Core – Liquid layer that surrounds the inner core Inner Core – Solid, dense layer of the core ...
... Mesosphere – Strong lower part of the mantle, extends from the asthenosphere into the core Outer Core – Liquid layer that surrounds the inner core Inner Core – Solid, dense layer of the core ...
Chapter-2_PracticeTest
... 19. Earth’s crust is divided into lithospheric plates that carry either oceanic or continental crust. a) Why is oceanic crust typically younger than continental crust? b) How might continental granitic crust be younger than oceanic crust? 20. The New Madrid Fault is considered by some scientists ...
... 19. Earth’s crust is divided into lithospheric plates that carry either oceanic or continental crust. a) Why is oceanic crust typically younger than continental crust? b) How might continental granitic crust be younger than oceanic crust? 20. The New Madrid Fault is considered by some scientists ...
Pre-Test
... 3. What are the three main plate boundaries? Convergent, Divergent and Transform 4. What is mantle convection? Explain how it causes tectonic plate movement. Mantle convection is the movement of magma from the interior of the Earth towards the Earth’s surface. The magma that is deeper within Earth i ...
... 3. What are the three main plate boundaries? Convergent, Divergent and Transform 4. What is mantle convection? Explain how it causes tectonic plate movement. Mantle convection is the movement of magma from the interior of the Earth towards the Earth’s surface. The magma that is deeper within Earth i ...
4_Ocean126_2006
... Earth’s functional layers Crust – we know most about it; continental crust is less dense Moho – a density discontinuity that separates crust from the mantle – Depth varies under continents and oceans – First thought that this was layer where crust moved relative to earth’s interior BUT, outer ...
... Earth’s functional layers Crust – we know most about it; continental crust is less dense Moho – a density discontinuity that separates crust from the mantle – Depth varies under continents and oceans – First thought that this was layer where crust moved relative to earth’s interior BUT, outer ...
Getting to Know: Why Earthquakes Occur
... Tectonic plate movement is the primary cause of earthquakes. As tectonic plates move, they grind against each other or push into each other. The edges of the plates rub against each other with a lot of friction, and the edges can become stuck for awhile. If this happens, pressure builds up in the cr ...
... Tectonic plate movement is the primary cause of earthquakes. As tectonic plates move, they grind against each other or push into each other. The edges of the plates rub against each other with a lot of friction, and the edges can become stuck for awhile. If this happens, pressure builds up in the cr ...
Section 8.4 Earths Layered Structure
... Explain how scientists determined Earth’s structure and composition. ...
... Explain how scientists determined Earth’s structure and composition. ...
Plate Tectonics - East Hanover Township School District
... every day. “Strong” earthquakes ( about magnitude of 7) occur once a month. Magnitude of over 8 occur about once/year. ...
... every day. “Strong” earthquakes ( about magnitude of 7) occur once a month. Magnitude of over 8 occur about once/year. ...
Chapter 5: Earthquakes
... Types of Seismic Waves • Waves race out from the focus of an earthquake. • The point on the surface directly above the focus is the epicenter. • Three types of seismic waves: – P Waves: 1st waves to arrive, compress and expand ground like an accordion, travel through liquids and solids; damage buil ...
... Types of Seismic Waves • Waves race out from the focus of an earthquake. • The point on the surface directly above the focus is the epicenter. • Three types of seismic waves: – P Waves: 1st waves to arrive, compress and expand ground like an accordion, travel through liquids and solids; damage buil ...
File
... Convection currents within the mantle drive plates to move in different directions. The convection currents are driven by the internal heat engine of the core. As the mantle is heated, the hot less dense liquid rises and the cool more dense liquid sinks creating movement within the ...
... Convection currents within the mantle drive plates to move in different directions. The convection currents are driven by the internal heat engine of the core. As the mantle is heated, the hot less dense liquid rises and the cool more dense liquid sinks creating movement within the ...
Earthquakes
... • Eventually the build up of stored energy exceeds the strength of the rock and it fractures. • The stored elastic strain energy is rapidly released and propagates outward as vibration waves called seismic waves. ...
... • Eventually the build up of stored energy exceeds the strength of the rock and it fractures. • The stored elastic strain energy is rapidly released and propagates outward as vibration waves called seismic waves. ...
how do tectonic plates cause earthquakes?
... fault surface is forced up and over the rock below the fault surface. ...
... fault surface is forced up and over the rock below the fault surface. ...
PHYSICAL GEOLOGY
... know on sight several minerals and rocks that commonly occur on the earth’s surface distinguish the major classes of rocks and explain their origin understand the various processes of physical and chemical weathering and be able to recognize them in the field explain the different agents of erosion ...
... know on sight several minerals and rocks that commonly occur on the earth’s surface distinguish the major classes of rocks and explain their origin understand the various processes of physical and chemical weathering and be able to recognize them in the field explain the different agents of erosion ...
Earth`s Internal Processes
... Scientists learn about the interior by: ◦ Drilling a hole 200 m into the oceanic crust ◦ Studying the behavior of seismic waves ...
... Scientists learn about the interior by: ◦ Drilling a hole 200 m into the oceanic crust ◦ Studying the behavior of seismic waves ...
GREENLAND - SUMMARY OF HYDROCARBON GEOLOGY
... known as the combined Baffin Bay Graben, Ungava rift and Labrador Sea Graben. The drift created compression to the north, and forced listric faulting along the main grabens and additional sub parallel faults. The listric faults helped stretching the continent allowing up to 200 km continent drift in ...
... known as the combined Baffin Bay Graben, Ungava rift and Labrador Sea Graben. The drift created compression to the north, and forced listric faulting along the main grabens and additional sub parallel faults. The listric faults helped stretching the continent allowing up to 200 km continent drift in ...
how do tectonic plates cause earthquakes?
... fault surface is forced up and over the rock below the fault surface. ...
... fault surface is forced up and over the rock below the fault surface. ...
seismic waves notes - Fort Thomas Independent Schools
... • Transform plate boundary (side-by-side plate motion—see the San Andreas Fault)--move past ...
... • Transform plate boundary (side-by-side plate motion—see the San Andreas Fault)--move past ...
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.