Ch06_Restless Earth Earthquakes
... • Push/pull rocks in direction that wave is traveling • Temporarily change volume of material • Travel through solids, liquids, and gasses ...
... • Push/pull rocks in direction that wave is traveling • Temporarily change volume of material • Travel through solids, liquids, and gasses ...
Unit Plan - Teaching As Leadership
... Explain how heat from Earth’s interior reaches the surface primarily through convection. Explain how lithospheric plates the size of continents and oceans, move at rates of centimeters per year in response to movements in the mantle. Explain how major geologic events, such as earthquakes, volcanic e ...
... Explain how heat from Earth’s interior reaches the surface primarily through convection. Explain how lithospheric plates the size of continents and oceans, move at rates of centimeters per year in response to movements in the mantle. Explain how major geologic events, such as earthquakes, volcanic e ...
Handout 2.3-1 Standard 2 Objective 3.a, b, c, and d
... 22. What is an example of a divergent boundary in the mid-Atlantic? • The boundary of the North American and Eurasian plates. ...
... 22. What is an example of a divergent boundary in the mid-Atlantic? • The boundary of the North American and Eurasian plates. ...
Conduits Into Earth’s Inaccessible Interior
... of years. As these deep mantle rocks approach 50 miles from the surface, decreasing pressure allows them to partially melt. The melts, or magmas, may leak through the overlying cold rigid surface layer, or ...
... of years. As these deep mantle rocks approach 50 miles from the surface, decreasing pressure allows them to partially melt. The melts, or magmas, may leak through the overlying cold rigid surface layer, or ...
Plate tectonics II: Earth`s structure and plate boundaries
... • Crust versus mantle: The crust is a product of mantle melting. Typical mantle rocks have a higher magnesium to iron ratio, and a smaller portion of silicon and aluminum than the crust. • Lithosphere versus asthenosphere: While the lithosphere behaves as a rigid body over geologic time scales, th ...
... • Crust versus mantle: The crust is a product of mantle melting. Typical mantle rocks have a higher magnesium to iron ratio, and a smaller portion of silicon and aluminum than the crust. • Lithosphere versus asthenosphere: While the lithosphere behaves as a rigid body over geologic time scales, th ...
Tectonics review
... the intention therefore to exploit our current knowledge and database constructively that makes this proposal exciting. I do not know the two field areas proposed from personal experience. However, my knowledge of other exposures of (upper) mantle suggests that whilst some lithologies are indeed re ...
... the intention therefore to exploit our current knowledge and database constructively that makes this proposal exciting. I do not know the two field areas proposed from personal experience. However, my knowledge of other exposures of (upper) mantle suggests that whilst some lithologies are indeed re ...
6.2 Plate Tectonics
... Shifts the land 1. How many Different plates tectonic plates Different layers are there? Different size 2. What causes them to move? 3. What are they made of? 4. How fast do they move? 5. What does tectonic mean? Objective: We will learn about Plate Tectonics and how the continents move. Vocabulary ...
... Shifts the land 1. How many Different plates tectonic plates Different layers are there? Different size 2. What causes them to move? 3. What are they made of? 4. How fast do they move? 5. What does tectonic mean? Objective: We will learn about Plate Tectonics and how the continents move. Vocabulary ...
Changing Earth
... • Changes in continent location and sea levels • Formed barriers on terrestrial landscape • Australia divided into three parts in Cretaceous (50 mya) • North America – several epeiric seas – most recent ended ~65 mya • Europe and Asia separated by Turgai Sea until ~30 mya ...
... • Changes in continent location and sea levels • Formed barriers on terrestrial landscape • Australia divided into three parts in Cretaceous (50 mya) • North America – several epeiric seas – most recent ended ~65 mya • Europe and Asia separated by Turgai Sea until ~30 mya ...
Chapter 5 Review
... (11)What kinds of indirect evidence do geologists use to study the structure of Earth? (12)How do temperature and pressure change as you go deeper into Earth? (13)What happens in Earth’s interior to produce Earth’s magnetic field? Describe the layer where the ...
... (11)What kinds of indirect evidence do geologists use to study the structure of Earth? (12)How do temperature and pressure change as you go deeper into Earth? (13)What happens in Earth’s interior to produce Earth’s magnetic field? Describe the layer where the ...
Lecture 10: MORB and OIB petrogenesis
... Peridotite is the dominant rock type of the Earth’s upper mantle • Lherzolite: fertile unaltered mantle; mostly composed of olivine, orthopyroxene (commonly enstatite), and clinopyroxene (diopside), and have relatively high proportions of basaltic ingredients (garnet and ...
... Peridotite is the dominant rock type of the Earth’s upper mantle • Lherzolite: fertile unaltered mantle; mostly composed of olivine, orthopyroxene (commonly enstatite), and clinopyroxene (diopside), and have relatively high proportions of basaltic ingredients (garnet and ...
Introduction to Petrology
... core (Fig. 1). This layered structure has been inferred mainly from interpreting seismic refraction data, which has also led to some inferences regarding the composition of these layers (cf. your intro geology text and notes). Additional information on the composition of these layers comes from: sam ...
... core (Fig. 1). This layered structure has been inferred mainly from interpreting seismic refraction data, which has also led to some inferences regarding the composition of these layers (cf. your intro geology text and notes). Additional information on the composition of these layers comes from: sam ...
Seismic evidence for convection-driven motion of the North
... and is consistent with westward displacement of the base of the plate relative to its surface, at an average rate of 3.8 6 1.8 mm yr21. Here age-constrained ‘piercing points’ have enabled direct estimation of relative motion between the surface and underside of a plate. The relative displacement of ...
... and is consistent with westward displacement of the base of the plate relative to its surface, at an average rate of 3.8 6 1.8 mm yr21. Here age-constrained ‘piercing points’ have enabled direct estimation of relative motion between the surface and underside of a plate. The relative displacement of ...
Plate Tectonics - Illinois Wesleyan University
... • Ocean-continent (Andes) Volcanic chain, some compressional deformation of sediments, and optional accretionary wedge. Example of old, eroded remnants is the Sierra Nevada. • Ocean-ocean (Tonga) fairly rare, common in Pacific, seems to usually happen when oceanic crust gets very cold. Results in an ...
... • Ocean-continent (Andes) Volcanic chain, some compressional deformation of sediments, and optional accretionary wedge. Example of old, eroded remnants is the Sierra Nevada. • Ocean-ocean (Tonga) fairly rare, common in Pacific, seems to usually happen when oceanic crust gets very cold. Results in an ...
Ch02%20outline
... respect to one another and are continually changing in shape and size. • Earthquakes, deformation and volcanic eruptions occur where these plates meet. • The interior of plates generally have fewer earthquakes, less deformation and less volcanic activity compared to the margins. ...
... respect to one another and are continually changing in shape and size. • Earthquakes, deformation and volcanic eruptions occur where these plates meet. • The interior of plates generally have fewer earthquakes, less deformation and less volcanic activity compared to the margins. ...
Weathering and Erosion
... What are landforms? • The natural shapes or features on the Earth’s surface are called landforms. • Many different types of landforms can be found on the Earth. ...
... What are landforms? • The natural shapes or features on the Earth’s surface are called landforms. • Many different types of landforms can be found on the Earth. ...
Powerpoint Presentation Physical Geology, 10/e
... • Apparent polar wander curves for different continents suggest real movement relative to one another • Reconstruction of supercontinents using paleomagnetic information fits Africa and South America like puzzle pieces – Improved fit results in rock units (and glacial ice flow directions) precisely ...
... • Apparent polar wander curves for different continents suggest real movement relative to one another • Reconstruction of supercontinents using paleomagnetic information fits Africa and South America like puzzle pieces – Improved fit results in rock units (and glacial ice flow directions) precisely ...
10-2 Directed Reading
... _____ 48. Earth’s mantle is heated by energy generated by a. tectonic plates. b. Earth’s core and radioactivity. c. boiling water. d. cool, dense mantle material. _____ 49. What causes tectonic plate movement? a. Hot material in the mantle sinks. b. Lack of a convection cell causes plates to rise. c ...
... _____ 48. Earth’s mantle is heated by energy generated by a. tectonic plates. b. Earth’s core and radioactivity. c. boiling water. d. cool, dense mantle material. _____ 49. What causes tectonic plate movement? a. Hot material in the mantle sinks. b. Lack of a convection cell causes plates to rise. c ...
Frontiers Powerpoint slides - Durham University Community
... • Plumes almost certainly must rise from a “thermal boundary layer”, i.e., from material that lies just above a hot body. ...
... • Plumes almost certainly must rise from a “thermal boundary layer”, i.e., from material that lies just above a hot body. ...
1st Sem (unit I)
... 1. Like a jigsaw puzzle, there is a near perfect match of the coastlines of distant continents, such as South America and Africa. 2. Found in continents separated by oceans are identical remains of fossils of certain species of plants and animals. 3. Coal deposits in Antarctica showed that this cont ...
... 1. Like a jigsaw puzzle, there is a near perfect match of the coastlines of distant continents, such as South America and Africa. 2. Found in continents separated by oceans are identical remains of fossils of certain species of plants and animals. 3. Coal deposits in Antarctica showed that this cont ...
Changes to the Surface of Earth for website
... Destructive Force: Earthquakes Not only do buildings collapse when an earthquake hits, but the land itself changes. Visible changes appear when one block of land has moved compared to another. Roads often change their placement by becoming uneven or cracked. Streams can also change course. Sometime ...
... Destructive Force: Earthquakes Not only do buildings collapse when an earthquake hits, but the land itself changes. Visible changes appear when one block of land has moved compared to another. Roads often change their placement by becoming uneven or cracked. Streams can also change course. Sometime ...
Post-glacial rebound
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.