
Pre-Test: Chapter 7-Plate Tectonics
... 3. Evidence for sea-floor spreading has come from a. fossils in South America and Africa. c. ancient climatic conditions. b. magnetic minerals on the ocean floor. d. the breakup of Pangaea. ...
... 3. Evidence for sea-floor spreading has come from a. fossils in South America and Africa. c. ancient climatic conditions. b. magnetic minerals on the ocean floor. d. the breakup of Pangaea. ...
Gr. 8 NOTES: EARTHQUAKES Name: Pages 325 - 327
... 1. Give 3 expressions used to describe the phenomenon by which the Earth’s crust moves. . _____________________________________________________________________________ 2. What is a seismic wave, how are they formed & what do they cause? _______________________________________________________________ ...
... 1. Give 3 expressions used to describe the phenomenon by which the Earth’s crust moves. . _____________________________________________________________________________ 2. What is a seismic wave, how are they formed & what do they cause? _______________________________________________________________ ...
PLATE TECTONICS Earth`s crust is broken into These plates float on
... PLATE TECTONICS Earth's crust is broken into ________________ These plates float on top of the _________________ The phenomenon where heat rises until it cools to the point where it then falls again is _____________ Rock, under the earth's surface, that is heated to the point that it is liquid is ca ...
... PLATE TECTONICS Earth's crust is broken into ________________ These plates float on top of the _________________ The phenomenon where heat rises until it cools to the point where it then falls again is _____________ Rock, under the earth's surface, that is heated to the point that it is liquid is ca ...
Plate Tectonics - Department of Physics and Astronomy
... The shape of the continents, the magnetic stripe pattern on the ocean floor, and the relative ages of rocks on the ocean floor are all evidences for ...
... The shape of the continents, the magnetic stripe pattern on the ocean floor, and the relative ages of rocks on the ocean floor are all evidences for ...
Downloadable Structure PP
... S-waves do not travel through the outer core S-waves do not travel through liquids therefore, the outer core is molten and behaves like a liquid it is believed that flow of the molten outer core generates the earth’s magnetic field ...
... S-waves do not travel through the outer core S-waves do not travel through liquids therefore, the outer core is molten and behaves like a liquid it is believed that flow of the molten outer core generates the earth’s magnetic field ...
Chapter 2 Earth as a System
... “When energy transfer takes place, matter becomes less organized with time” Universe’s energy is spread out more and more uniformly over time ...
... “When energy transfer takes place, matter becomes less organized with time” Universe’s energy is spread out more and more uniformly over time ...
Unit 3 Study Guide
... ridges since they happen in the middle of the ocean floor. Sometimes the lava can cool over the fault and that area becomes a volcano. ...
... ridges since they happen in the middle of the ocean floor. Sometimes the lava can cool over the fault and that area becomes a volcano. ...
The Structure of the Earth
... • Outermost rigid layer • Divided into pieces called tectonic plates • 15-300 Km thick • The least dense of Earth’s layers. ...
... • Outermost rigid layer • Divided into pieces called tectonic plates • 15-300 Km thick • The least dense of Earth’s layers. ...
9th grade ch 3 notes simplified..
... 1. Convergent: 2 plates come towards each other. If one plate is an ocean plate, it will dive under the less dense continental plate, producing a subduction zone and a trench. If both are continents, the rock will fold, fault, and lead to mountain-building – like the Himalayas! 2. Transform: 2 p ...
... 1. Convergent: 2 plates come towards each other. If one plate is an ocean plate, it will dive under the less dense continental plate, producing a subduction zone and a trench. If both are continents, the rock will fold, fault, and lead to mountain-building – like the Himalayas! 2. Transform: 2 p ...
Inner Core
... The core of the Earth is made mostly of very hot (metals) (Fe=iron) 1/3 of the earth’s mass very hot ...
... The core of the Earth is made mostly of very hot (metals) (Fe=iron) 1/3 of the earth’s mass very hot ...
Earthquakes
... Friction prevents plates from slipping past one another When the strain on the plates reaches a critical value, the rock fractures and an EARTHQUAKE ensues. Strong rock near plate boundary is elastic, while the edges are solid and immobile. ...
... Friction prevents plates from slipping past one another When the strain on the plates reaches a critical value, the rock fractures and an EARTHQUAKE ensues. Strong rock near plate boundary is elastic, while the edges are solid and immobile. ...
Part 2, E
... resulting passage is grammatically correct and makes good sense. Write one word only in each blank. Do not transfer the answers to the answer sheet. ...
... resulting passage is grammatically correct and makes good sense. Write one word only in each blank. Do not transfer the answers to the answer sheet. ...
Magma Supply Vs Magma Plumbing
... •Smaller radius means it cooled down quicker than earth and the lithosphere (the rigid cold layer) is thicker - too strong for plate tectonics •Large volcanoes show surface has not moved relative to mantle plumes ...
... •Smaller radius means it cooled down quicker than earth and the lithosphere (the rigid cold layer) is thicker - too strong for plate tectonics •Large volcanoes show surface has not moved relative to mantle plumes ...
The Theory of Plate Tectonics
... Theory of up into tectonic Plate Tectonics plates. • Plates move around on top of the asthenosphere. ...
... Theory of up into tectonic Plate Tectonics plates. • Plates move around on top of the asthenosphere. ...
The Theory of Plate Tectonics On a separate sheet of paper
... 4. Describe what happens when (a) two plates carrying oceanic crust collide, (b) two plates carrying continental crust collide, and (c) a plate carrying oceanic crust collides with a plate carrying continental crust. 5. Explain what force caused the movement of the continents from one supercontinent ...
... 4. Describe what happens when (a) two plates carrying oceanic crust collide, (b) two plates carrying continental crust collide, and (c) a plate carrying oceanic crust collides with a plate carrying continental crust. 5. Explain what force caused the movement of the continents from one supercontinent ...
Geology Core Class Assessment 2015-2016
... it must have: a. high porosity b. high permeability c. low porosity d. low permeability e. (a) and (b) 8. Fossil evidence indicates that complex life forms developed approximately __________ years before present a. 5, 440 b. 544 thousand c. 544 million d. 3.5 billion e. none of the above 9. Which of ...
... it must have: a. high porosity b. high permeability c. low porosity d. low permeability e. (a) and (b) 8. Fossil evidence indicates that complex life forms developed approximately __________ years before present a. 5, 440 b. 544 thousand c. 544 million d. 3.5 billion e. none of the above 9. Which of ...
Volcanoes
... The permanent lake of molten lava. He watches the process of lava pooling up, cooling on the surface, then “flowing” across the surface and sinking back down. Earth’s surface in miniature. 3. Give a detailed explanation of Iain’s theory on why there is so much heat in the center of our planet? It be ...
... The permanent lake of molten lava. He watches the process of lava pooling up, cooling on the surface, then “flowing” across the surface and sinking back down. Earth’s surface in miniature. 3. Give a detailed explanation of Iain’s theory on why there is so much heat in the center of our planet? It be ...
Earth*s Structure - Union High School
... • Geologists divide mantle into 3 layers based on physical properties of rock: 1) Lithosphere 2) Asthenosphere 3) Mesosphere • Lithosphere- Layer of relatively cool, rigid rock that includes the uppermost part of the mantle as well as the Earth’s crust. • Lithosphere measures about 100 km, although ...
... • Geologists divide mantle into 3 layers based on physical properties of rock: 1) Lithosphere 2) Asthenosphere 3) Mesosphere • Lithosphere- Layer of relatively cool, rigid rock that includes the uppermost part of the mantle as well as the Earth’s crust. • Lithosphere measures about 100 km, although ...
Tikhonov, A.N., 1950. - Complete MT Solutions
... fields from the point of view of Maxwell equations. Although suggested theory is based on very simplified considerations, it permits establishing and refining the above relations and also allows reaching some conclusions about electrical characteristics of the earth's crust. I use this study to form ...
... fields from the point of view of Maxwell equations. Although suggested theory is based on very simplified considerations, it permits establishing and refining the above relations and also allows reaching some conclusions about electrical characteristics of the earth's crust. I use this study to form ...
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.