Continental drift
... • Extreme heat from the core causes the mantle to create pressure on the crust, forcing the crust in some places to rise • As the crust rises it pushes large blocks or rock upwards and forms mountains or plateaus • A portion of the Rocky Mountains formed this way ...
... • Extreme heat from the core causes the mantle to create pressure on the crust, forcing the crust in some places to rise • As the crust rises it pushes large blocks or rock upwards and forms mountains or plateaus • A portion of the Rocky Mountains formed this way ...
Word - University of Idaho
... A. inner crust, outer crust, mantle, core B. core, crust, mantle C. inner core, mantle, lithosphere, asthenosphere D. inner core, outer core, lower mantle, asthenosphere, ...
... A. inner crust, outer crust, mantle, core B. core, crust, mantle C. inner core, mantle, lithosphere, asthenosphere D. inner core, outer core, lower mantle, asthenosphere, ...
past exam questions - University of Idaho
... A. inner crust, outer crust, mantle, core B. core, crust, mantle C. inner core, mantle, lithosphere, asthenosphere D. inner core, outer core, lower mantle, asthenosphere, lithosphere E. inner core, outer core, lower mantle, crust, lithosphere 2. The correct order of layers in the Earth from the surf ...
... A. inner crust, outer crust, mantle, core B. core, crust, mantle C. inner core, mantle, lithosphere, asthenosphere D. inner core, outer core, lower mantle, asthenosphere, lithosphere E. inner core, outer core, lower mantle, crust, lithosphere 2. The correct order of layers in the Earth from the surf ...
Seafloor Spreading and Subduction Unit Exam Study Guide You
... 2. Continental Drift – The idea that continents moved and changed positions. 3. Bathymetry – The shape of the seafloor. 4. Trench – The deepest feature in the oceans that forms when one plate subducts beneath another. 5. Normal Polarity – When Earth’s magnetic field is the same direction as it is to ...
... 2. Continental Drift – The idea that continents moved and changed positions. 3. Bathymetry – The shape of the seafloor. 4. Trench – The deepest feature in the oceans that forms when one plate subducts beneath another. 5. Normal Polarity – When Earth’s magnetic field is the same direction as it is to ...
Chapter 7, Section 4 Directed Reading A
... c. subsidence. b. deformation. d. uprise. _____ 26. The sinking of regions of the Earth’s crust to lower elevations is called a. uplift. c. subsidence. b. rebound. d. uprise. _____ 27. When the Earth’s crust slowly springs back to its original elevation, it is called a. uplift. c. subsidence. b. reb ...
... c. subsidence. b. deformation. d. uprise. _____ 26. The sinking of regions of the Earth’s crust to lower elevations is called a. uplift. c. subsidence. b. rebound. d. uprise. _____ 27. When the Earth’s crust slowly springs back to its original elevation, it is called a. uplift. c. subsidence. b. reb ...
continental drift theory Now called PLATE TECTONICS
... Trench and volcanic island arc at a convergent plate boundary Fig. 10.6b, p. 215 ...
... Trench and volcanic island arc at a convergent plate boundary Fig. 10.6b, p. 215 ...
Earthquakes
... The plates that make up the earth’s crust are moving towards or away from each other at a rate of a few millimeters a year. It is believed convection currents in the earth’s mantle cause the plates to move. The movement is not smooth, and sudden movements cause earthquakes. There are four types of p ...
... The plates that make up the earth’s crust are moving towards or away from each other at a rate of a few millimeters a year. It is believed convection currents in the earth’s mantle cause the plates to move. The movement is not smooth, and sudden movements cause earthquakes. There are four types of p ...
Inside the Earth
... and possibly some sulfur and oxygen. The diameter of the Core is about 6,856 km. This is slightly larger that the entire planet of Mars. ...
... and possibly some sulfur and oxygen. The diameter of the Core is about 6,856 km. This is slightly larger that the entire planet of Mars. ...
Proto-Oceanic Crust in the North and South Atlantic
... seismic sections, POC shows various architectures of seaward dipping reflectors, fragmented crustal segments, and tilted fault blocks with on lapping fill. Depending upon the area POC appears to be either volcanic material, abducted mantle or deep continental crust, separated continental fragments, ...
... seismic sections, POC shows various architectures of seaward dipping reflectors, fragmented crustal segments, and tilted fault blocks with on lapping fill. Depending upon the area POC appears to be either volcanic material, abducted mantle or deep continental crust, separated continental fragments, ...
convergent boundary
... directions or in the same direction but at different rates. The Force associated with this boundary is _____________. Ex: San Andreas Fault in California. ...
... directions or in the same direction but at different rates. The Force associated with this boundary is _____________. Ex: San Andreas Fault in California. ...
Chapter 9: Our Living Earth PowerPoint print-off
... – Consolidated mixture of one or more minerals • Monomineralic rocks have many crystals of 1 mineral • Polymineralic rocks have many crystals of >2 minerals ...
... – Consolidated mixture of one or more minerals • Monomineralic rocks have many crystals of 1 mineral • Polymineralic rocks have many crystals of >2 minerals ...
CompositionoftheEarth
... The crust that covers the earth isn’t one complete piece! The crust is broken into several large slabs of rock called tectonic plates. These plates float on the asthenosphere, the uppermost part of the mantle. Where these giant plates of rock meet we get plate boundaries, or faults. With the ...
... The crust that covers the earth isn’t one complete piece! The crust is broken into several large slabs of rock called tectonic plates. These plates float on the asthenosphere, the uppermost part of the mantle. Where these giant plates of rock meet we get plate boundaries, or faults. With the ...
between Earth Expansion and Seafloor Spreading
... floors of the world’s oceans. Dr. Foster seems to believe that if seafloor spreading and subduction are both myths, then ocean widening and continental displacement, lacking a plausible mechanism, must also be myths, which renders superfluous any theory that purports to explain them, including, and ...
... floors of the world’s oceans. Dr. Foster seems to believe that if seafloor spreading and subduction are both myths, then ocean widening and continental displacement, lacking a plausible mechanism, must also be myths, which renders superfluous any theory that purports to explain them, including, and ...
C:\Users\jmhemzac\Desktop\2016 spring\121rev1s16.wpd
... with respect to chemical composition and with respect to differences in physical behavior (i.e., deformational response to stress): –> be able to describe the types of behavior associated with each of these layers What is the relationship of the layers defined by physical vs. compositional character ...
... with respect to chemical composition and with respect to differences in physical behavior (i.e., deformational response to stress): –> be able to describe the types of behavior associated with each of these layers What is the relationship of the layers defined by physical vs. compositional character ...
OBJECTIVES: Students will gain an understanding of how
... Scientists refer to the Mid-Atlantic submarine mountainous region as the Mid-Atlantic Ridge. The Theory of Seafloor Spreading states that seafloor spreading is a process that occurs at mid-ocean ridges, where new ocean crust is formed through volcanic activity and then gradually moves away from the ...
... Scientists refer to the Mid-Atlantic submarine mountainous region as the Mid-Atlantic Ridge. The Theory of Seafloor Spreading states that seafloor spreading is a process that occurs at mid-ocean ridges, where new ocean crust is formed through volcanic activity and then gradually moves away from the ...
“Igneous and Metamorphic Rocks” Newcomer Academy
... The exposed granite weathers and is eroded by water, Eroded wing, and ice, reducing the granite to sediments. ...
... The exposed granite weathers and is eroded by water, Eroded wing, and ice, reducing the granite to sediments. ...
Volcanic Eruptions and Hazards
... home to over 75% of the world's active and dormant volcanoes The Ring of Fire is a direct result of plate tectonics and the movement and collisions of crustal plates ...
... home to over 75% of the world's active and dormant volcanoes The Ring of Fire is a direct result of plate tectonics and the movement and collisions of crustal plates ...
File
... show HOW the plates move. • Back then, we had no GPS (global position satellites) nor did we know much about atomic radiation nor CONVECTION! ...
... show HOW the plates move. • Back then, we had no GPS (global position satellites) nor did we know much about atomic radiation nor CONVECTION! ...
mountain building chapter 11 - NVHSEarthScienceKDudenhausen
... Continental Accretion – smaller crustal fragments collide and merge with continental margins; example – many of mountains rimming the Pacific Canada and Alaska ______________ – any crustal fragment that has a geologic history distinct from adjoining terranes ______________ – a floating crust in gra ...
... Continental Accretion – smaller crustal fragments collide and merge with continental margins; example – many of mountains rimming the Pacific Canada and Alaska ______________ – any crustal fragment that has a geologic history distinct from adjoining terranes ______________ – a floating crust in gra ...
Past is Key: Tectonic Evolution of the Pacific
... Many of the major elements of EarthScope are focused, at least initially, on evaluating the current deformation field (PBO, InSAR), velocity structure (USArray) and in-situ characteristics of an active fault (SAFOD) within the western United States. These physical characteristics, however, are all c ...
... Many of the major elements of EarthScope are focused, at least initially, on evaluating the current deformation field (PBO, InSAR), velocity structure (USArray) and in-situ characteristics of an active fault (SAFOD) within the western United States. These physical characteristics, however, are all c ...
Lecture#4 part 2: Laramide Orogeny
... • How does intracontinental deformation on the scale of the Laramide even occur? • The Rockies are as high as ever and still rising. How much of the cumulative Rocky Mountain uplift can the Laramide claim, and when did it occur, early or late in the orogeny? ...
... • How does intracontinental deformation on the scale of the Laramide even occur? • The Rockies are as high as ever and still rising. How much of the cumulative Rocky Mountain uplift can the Laramide claim, and when did it occur, early or late in the orogeny? ...
Name
... -You may not know this but, Earth’s magnetic field has reversed several times in the last 4.6 billion years! Yes, in ancient times North was South and South was North. If you had a compass it would point the opposite way during periods of reversed polarity. The molten lava that spews out of the Mid- ...
... -You may not know this but, Earth’s magnetic field has reversed several times in the last 4.6 billion years! Yes, in ancient times North was South and South was North. If you had a compass it would point the opposite way during periods of reversed polarity. The molten lava that spews out of the Mid- ...
Plate Boundaries and Patterns of Activity - Hatboro
... Plate Boundaries and Patterns of Activity Introduction: The Earth’s crust is divided into several “plates”. Some plates consist of mainly ocean crust, some are mostly continental crust, and some plates are made up of both ocean and continental crust. The plates, which together make up Earth’s lithos ...
... Plate Boundaries and Patterns of Activity Introduction: The Earth’s crust is divided into several “plates”. Some plates consist of mainly ocean crust, some are mostly continental crust, and some plates are made up of both ocean and continental crust. The plates, which together make up Earth’s lithos ...
course outline - UTSC - University of Toronto
... The rocky surface of the planet (its crust) is broken into large lithospheric plates that are moved around at velocities up to 25 cm/yr by large convection cells in the hotter Earth’s interior (the mantle). Alfred Wegener suggested the drift of continents in 1912 but it was rejected as implausible; ...
... The rocky surface of the planet (its crust) is broken into large lithospheric plates that are moved around at velocities up to 25 cm/yr by large convection cells in the hotter Earth’s interior (the mantle). Alfred Wegener suggested the drift of continents in 1912 but it was rejected as implausible; ...
Plate tectonics
Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός ""pertaining to building"") is a scientific theory that describes the large-scale motion of Earth's lithosphere. This theoretical model builds on the concept of continental drift which was developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were later developed in the late 1950s and early 1960s.The lithosphere, which is the rigid outermost shell of a planet (on Earth, the crust and upper mantle), is broken up into tectonic plates. On Earth, there are seven or eight major plates (depending on how they are defined) and many minor plates. Where plates meet, their relative motion determines the type of boundary; convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The lateral relative movement of the plates typically varies from zero to 100 mm annually.Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction carries plates into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the globe remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories (that still have some supporters) propose gradual shrinking (contraction) or gradual expansion of the globe.Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by the rotation of the globe and the tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.