Plate Tectonics Lecture Notes: Slide 1. Title
... •These earthquakes occur at a depth at which the subducted crust should no longer be brittle, due to the high temperature and pressure. A possible mechanism for the generation of deep focus earthquakes is faulting. • Earthquakes may also occur in volcanic regions and are caused there both by tectoni ...
... •These earthquakes occur at a depth at which the subducted crust should no longer be brittle, due to the high temperature and pressure. A possible mechanism for the generation of deep focus earthquakes is faulting. • Earthquakes may also occur in volcanic regions and are caused there both by tectoni ...
Plate Tectonics Lecture Notes
... •These earthquakes occur at a depth at which the subducted crust should no longer be brittle, due to the high temperature and pressure. A possible mechanism for the generation of deep focus earthquakes is faulting. • Earthquakes may also occur in volcanic regions and are caused there both by tectoni ...
... •These earthquakes occur at a depth at which the subducted crust should no longer be brittle, due to the high temperature and pressure. A possible mechanism for the generation of deep focus earthquakes is faulting. • Earthquakes may also occur in volcanic regions and are caused there both by tectoni ...
Normal / Reverse / Transverse
... Leads to fractures in the earth's crust Convection currents in mantle Faults force land up, down or sideways Down - normal fault (pulling apart) Up - reverse fault (pushing together) Sideways - Transform fault (sideways) Rock may slip very little each time (1-5 cm per year) In geological time (slipp ...
... Leads to fractures in the earth's crust Convection currents in mantle Faults force land up, down or sideways Down - normal fault (pulling apart) Up - reverse fault (pushing together) Sideways - Transform fault (sideways) Rock may slip very little each time (1-5 cm per year) In geological time (slipp ...
plate tectonics
... In areas of continental convergence In areas where two ocean plates come together In areas where plates are moving apart In areas where two plates are sliding past each other ...
... In areas of continental convergence In areas where two ocean plates come together In areas where plates are moving apart In areas where two plates are sliding past each other ...
Chapter 10 Resource: Forces Shaping Earth
... Volcanoes can form when plates of Earth’s lithosphere sink into the mantle at subduction zones. These are referred to as subduction volcanoes. The deeper the plates sink, the hotter they become. Eventually the plates begin to melt, becoming magma. Because this newly formed magma is less dense than t ...
... Volcanoes can form when plates of Earth’s lithosphere sink into the mantle at subduction zones. These are referred to as subduction volcanoes. The deeper the plates sink, the hotter they become. Eventually the plates begin to melt, becoming magma. Because this newly formed magma is less dense than t ...
Moving Plates
... Most Earthquakes occur at the edge of continental and oceanic plates. Many of the Earth’s earthquakes occur in the Pacific Ocean around the “Ring of Fire” ...
... Most Earthquakes occur at the edge of continental and oceanic plates. Many of the Earth’s earthquakes occur in the Pacific Ocean around the “Ring of Fire” ...
blue (Page 1)
... among other places (see chapter 12). In South America and Africa there are very thick glacial deposits of the same age (Permian-Carboniferous). The deposits match almost exactly when the continents are moved back together. As glacial ice moves, it cuts grooves and scratches in underlying rocks and p ...
... among other places (see chapter 12). In South America and Africa there are very thick glacial deposits of the same age (Permian-Carboniferous). The deposits match almost exactly when the continents are moved back together. As glacial ice moves, it cuts grooves and scratches in underlying rocks and p ...
continental drift theory Now called PLATE TECTONICS
... – WEATHERING – produces loosened material that can be eroded • MECHANICAL – large rock fragments broken into smaller pieces – One type called FROST WEDGING- caused by freezing, expansion, and splitting of rock ...
... – WEATHERING – produces loosened material that can be eroded • MECHANICAL – large rock fragments broken into smaller pieces – One type called FROST WEDGING- caused by freezing, expansion, and splitting of rock ...
Structural Features - Illinois State Geological Survey
... Structural geology examines how rock units are deformed after they are deposited or formed. In Illinois, nearly all of the rocks at or near the surface are sedimentary rocks that were originally laid down in more or less horizontal layers. Thus, any significant departure from the horizontal reflects ...
... Structural geology examines how rock units are deformed after they are deposited or formed. In Illinois, nearly all of the rocks at or near the surface are sedimentary rocks that were originally laid down in more or less horizontal layers. Thus, any significant departure from the horizontal reflects ...
Plate Boundary: Oceanic-Continental
... and volcanoes are located on or near plate boundaries. To expand on, earthquakes can occur on three different types: convergent, divergent, and transform plate boundaries. The earth’s crust and even the inside of the earth are moving. This movement causes the plates to push against each other or pul ...
... and volcanoes are located on or near plate boundaries. To expand on, earthquakes can occur on three different types: convergent, divergent, and transform plate boundaries. The earth’s crust and even the inside of the earth are moving. This movement causes the plates to push against each other or pul ...
What is an earthquake?
... much upward or downward movement. • The San Andreas Fault is the boundary between two of Earth’s plates that are moving sideways past each other. ...
... much upward or downward movement. • The San Andreas Fault is the boundary between two of Earth’s plates that are moving sideways past each other. ...
The Ice Age - K5 Learning
... • There is a theory about the impact of relatively large meteorites and another theory that volcanism, eruptions of super volcanoes, was a cause. • It is noted that several of these factors may influence each other. One example is when the atmospheric composition of the earth changes, then climate i ...
... • There is a theory about the impact of relatively large meteorites and another theory that volcanism, eruptions of super volcanoes, was a cause. • It is noted that several of these factors may influence each other. One example is when the atmospheric composition of the earth changes, then climate i ...
Grade 7 Earth/Space Pretest
... C. Sediment is deposited in layers which can become cemented together to form sedimentary rock. D. The composition of sedimentary rock can provide information about whether the rock formed from decomposed plant material. ____ 13. Florida and the Atlantic ocean surrounding Florida are a part of the N ...
... C. Sediment is deposited in layers which can become cemented together to form sedimentary rock. D. The composition of sedimentary rock can provide information about whether the rock formed from decomposed plant material. ____ 13. Florida and the Atlantic ocean surrounding Florida are a part of the N ...
Plate Tectonics: A Unifying Theory
... Passive margins: wider, built up from sedimentation – found within plates rather than at a boundary ...
... Passive margins: wider, built up from sedimentation – found within plates rather than at a boundary ...
u1 w5 d4 - Cobb Learning
... Basalt forms more of Earth's surface than any other rock type. Most areas in ocean basins are basalt. May be on land from lava flows, too. ...
... Basalt forms more of Earth's surface than any other rock type. Most areas in ocean basins are basalt. May be on land from lava flows, too. ...
Ch 5 S 4 Sea-Floor Spreading
... ii. Evidence from Magnetic Stripes 1. While studying the ocean floors, scientists found that the Earth’s magnetic poles have reversed themselves many times. a. The last reversal happened 780,000 years ago 2. The rock that makes up the ocean floor lies in a pattern of magnetized “stripes” 3. The roc ...
... ii. Evidence from Magnetic Stripes 1. While studying the ocean floors, scientists found that the Earth’s magnetic poles have reversed themselves many times. a. The last reversal happened 780,000 years ago 2. The rock that makes up the ocean floor lies in a pattern of magnetized “stripes” 3. The roc ...
LESSON 10 – Earth`s History: Estimating Geologic Time
... http://epswww.unm.edu/facstaff/mroy/EPS101/Chapter_07_files/Chapter_07.ppt#376,28,7.9 How do you reconstruct geologic history with rocks? http://faculty.sdmiramar.edu/gbochicchio/Chapter%2018.ppt#309,23,Figure%2018.6 http://teachersites.schoolworld.com/webpages/bkwscience/files/Earth%20History.ppt#2 ...
... http://epswww.unm.edu/facstaff/mroy/EPS101/Chapter_07_files/Chapter_07.ppt#376,28,7.9 How do you reconstruct geologic history with rocks? http://faculty.sdmiramar.edu/gbochicchio/Chapter%2018.ppt#309,23,Figure%2018.6 http://teachersites.schoolworld.com/webpages/bkwscience/files/Earth%20History.ppt#2 ...
Texas Science Grade 8 Investigations
... d. Label on your map the obvious convergent and divergent plate boundaries. Label any areas you are not sure about “difficult” boundaries. e. What made the difficult boundary areas challenging to label? f. We have identified seven major tectonic plates based on obvious convergent and divergent pla ...
... d. Label on your map the obvious convergent and divergent plate boundaries. Label any areas you are not sure about “difficult” boundaries. e. What made the difficult boundary areas challenging to label? f. We have identified seven major tectonic plates based on obvious convergent and divergent pla ...
Reading Science!
... the bottom layer by layer. Over millions of years all of the weight from the upper layers along with sand and mud, turns the layer of sediments into rock. Some sedimentary rocks appear to be banded, or layered because of this. Also, many fossilized remains are found within the layers of sedimentary ...
... the bottom layer by layer. Over millions of years all of the weight from the upper layers along with sand and mud, turns the layer of sediments into rock. Some sedimentary rocks appear to be banded, or layered because of this. Also, many fossilized remains are found within the layers of sedimentary ...
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.