Slide 1 - Fort Thomas Independent Schools
... show that the continents were once united into one supercontinent he named Pangaea. Unfortunately, Wegener could not explain how the continents moved, and most geologists ignored his ideas. • The hypothesis of continental drift was revived during the 1950s when paleomagnetic studies indicated the pr ...
... show that the continents were once united into one supercontinent he named Pangaea. Unfortunately, Wegener could not explain how the continents moved, and most geologists ignored his ideas. • The hypothesis of continental drift was revived during the 1950s when paleomagnetic studies indicated the pr ...
... years). The shergottites have clear evidence that this short-lived isotope was present in their mantle sources, so the sources formed before 4.0 billion years ago. We have two speedometers here, one recording city driving, the other highway driving. Combined they ought to give us a more complete rec ...
Question paper - Unit F791/01 - Global tectonics
... (c) Complete the following sentences by using the correct terms from the list below: amplitude surface ...
... (c) Complete the following sentences by using the correct terms from the list below: amplitude surface ...
Lesson Objectives Vocabulary Introduction Causes of Earthquakes
... (Figure below). Body waves move at different speeds through different materials. P-waves are faster. They travel at about 6 to 7 kilometers (about 4 miles) per second. Primary waves are so named because they are the first waves to reach a seismometer. P-waves squeeze and release rocks as they travel ...
... (Figure below). Body waves move at different speeds through different materials. P-waves are faster. They travel at about 6 to 7 kilometers (about 4 miles) per second. Primary waves are so named because they are the first waves to reach a seismometer. P-waves squeeze and release rocks as they travel ...
CV OJagoutz_May_2014 - Massachusetts Institute of Technology
... of decent for Continental Crust formation: evidences from the Kohistan arc.” Department of Earth and Planetary Sciences, Harvard University, 2007 “Crust forming processes in Island arcs: Field and petrological evidence from the Kohistan arc” Department of Earth, Atmospheric and Planetary Sciences, M ...
... of decent for Continental Crust formation: evidences from the Kohistan arc.” Department of Earth and Planetary Sciences, Harvard University, 2007 “Crust forming processes in Island arcs: Field and petrological evidence from the Kohistan arc” Department of Earth, Atmospheric and Planetary Sciences, M ...
Plate Tectonics
... Andreas fault. Los Angeles will not crack off and fall into the ocean as popularly thought, but it will simply creep towards San Francisco at about 6 centimeters per year. In 16 million years, the plates will have moved so much that Los Angeles will be north of San Francisco! ...
... Andreas fault. Los Angeles will not crack off and fall into the ocean as popularly thought, but it will simply creep towards San Francisco at about 6 centimeters per year. In 16 million years, the plates will have moved so much that Los Angeles will be north of San Francisco! ...
d12 Oceanic-oceanic, oceanic-continental, and - e
... Tectonics refers to behavior in response to forces that deform the crust. The Moho (an abrupt change in rock composition) demarks the base of the crust. Plate tectonics refers to behavior in response to forces that deform the elastic lithosphere. The lithosphere, which is comprised of crust and uppe ...
... Tectonics refers to behavior in response to forces that deform the crust. The Moho (an abrupt change in rock composition) demarks the base of the crust. Plate tectonics refers to behavior in response to forces that deform the elastic lithosphere. The lithosphere, which is comprised of crust and uppe ...
mineral - Westmoreland Central School
... • Heat from magma alters the rock it touches – Regional metamorphism • Large areas of rock are under intense heat and pressure • Generally associated with mountain building ...
... • Heat from magma alters the rock it touches – Regional metamorphism • Large areas of rock are under intense heat and pressure • Generally associated with mountain building ...
Minerals and Rocks - Westmoreland Central School
... • Heat from magma alters the rock it touches – Regional metamorphism • Large areas of rock are under intense heat and pressure • Generally associated with mountain building ...
... • Heat from magma alters the rock it touches – Regional metamorphism • Large areas of rock are under intense heat and pressure • Generally associated with mountain building ...
GEO143_final_key
... (66) 1 pt. What is the main difference between a conglomerate and a sedimentary breccia? A) Breccia clasts are angular; conglomerate clasts are rounded. B) A breccia is well stratified; a conglomerate is poorly stratified. C) Breccia clasts are the size of baseballs; conglomerate clasts are larger. ...
... (66) 1 pt. What is the main difference between a conglomerate and a sedimentary breccia? A) Breccia clasts are angular; conglomerate clasts are rounded. B) A breccia is well stratified; a conglomerate is poorly stratified. C) Breccia clasts are the size of baseballs; conglomerate clasts are larger. ...
Geotectonics and Heat Flows
... 1973]; I -Kurile island arc, II – Japan, III – Bonin arc. Along horizontal axis are shown distances from deep-water trenches. These data show that heat flow is determined by two sources – heat flow of volatiles going from the depth most probably from the Earth’s core outer boundary and stress regime ...
... 1973]; I -Kurile island arc, II – Japan, III – Bonin arc. Along horizontal axis are shown distances from deep-water trenches. These data show that heat flow is determined by two sources – heat flow of volatiles going from the depth most probably from the Earth’s core outer boundary and stress regime ...
Magnetic Pulsations: Sources and Properties
... wave is the Alfven wave just Figure 5: Boundaries of various regions of the magnetosphere are projected into the magnetic equatorial plane. They include the bow described. It consists of bends in shock, magnetopause, plasmapause, and inner edge of the plasma the field that do not change the sheet. T ...
... wave is the Alfven wave just Figure 5: Boundaries of various regions of the magnetosphere are projected into the magnetic equatorial plane. They include the bow described. It consists of bends in shock, magnetopause, plasmapause, and inner edge of the plasma the field that do not change the sheet. T ...
Chapter 10 Section 2
... • Tectonic plate boundaries may be in the middle of the ocean floor, around the edges of continents, or even within continents. • The three types of plate boundaries are – divergent boundaries – convergent boundaries – transform boundaries • Each plate boundary is associated with a characteristic ty ...
... • Tectonic plate boundaries may be in the middle of the ocean floor, around the edges of continents, or even within continents. • The three types of plate boundaries are – divergent boundaries – convergent boundaries – transform boundaries • Each plate boundary is associated with a characteristic ty ...
GEO_142_mid_term_I
... this site. You have just discovered a(n) ________. A) disconformity B) example of cross-cutting relationships C) series of conformable strata D) angular unconformity (31) 2 pts. What fundamental concept states that in a horizontal sequence of conformable sedimentary strata, each higher bed is younge ...
... this site. You have just discovered a(n) ________. A) disconformity B) example of cross-cutting relationships C) series of conformable strata D) angular unconformity (31) 2 pts. What fundamental concept states that in a horizontal sequence of conformable sedimentary strata, each higher bed is younge ...
chapter 9 - Geoclassroom Home
... The hypothesis rests on evidence of glaciers in tropical regions, only 11 degrees from the equator, such as Panama today. It is hypothesized that because tropical glaciers existed, it is likely that glaciers covered the landmasses of the entire globe. “Snowball Earth,” was repeated at least once mor ...
... The hypothesis rests on evidence of glaciers in tropical regions, only 11 degrees from the equator, such as Panama today. It is hypothesized that because tropical glaciers existed, it is likely that glaciers covered the landmasses of the entire globe. “Snowball Earth,” was repeated at least once mor ...
Rocks in the Museum - Oxford University Museum of Natural History
... more about the specimens in the displays and get to know the large touchable rocks, minerals and fossils which are also on display in the mineralogy and petrology aisle in the main court of the Museum. What is ‘Learning more’? ‘Learning more’ presents a series of articles about the Museum and its co ...
... more about the specimens in the displays and get to know the large touchable rocks, minerals and fossils which are also on display in the mineralogy and petrology aisle in the main court of the Museum. What is ‘Learning more’? ‘Learning more’ presents a series of articles about the Museum and its co ...
PLATE TECTONICS - Oakton Community College
... – 1. most spectacular are black smokers. • a. They discharge superheated waters (300 - 400oC) at high rates much like a fire hose. • b. Black because of chem. rx. 2o to those that occur in the water forming sulfur-bearing minerals. • c. form large fragile chimney like mounds up to 10 meters high mad ...
... – 1. most spectacular are black smokers. • a. They discharge superheated waters (300 - 400oC) at high rates much like a fire hose. • b. Black because of chem. rx. 2o to those that occur in the water forming sulfur-bearing minerals. • c. form large fragile chimney like mounds up to 10 meters high mad ...
What is Density?
... Denser liquids help you float more easily. That is why it is easier to float in the ocean, than in a freshwater lake. ...
... Denser liquids help you float more easily. That is why it is easier to float in the ocean, than in a freshwater lake. ...
Table of Contents - Mr. Tobin's Earth Science Class
... Metamorphic Rocks are pre-existing rocks that are exposed to increases in temperature and pressure, or hydrothermal solutions, that change the rock’s texture, mineral composition, or chemical composition. ...
... Metamorphic Rocks are pre-existing rocks that are exposed to increases in temperature and pressure, or hydrothermal solutions, that change the rock’s texture, mineral composition, or chemical composition. ...
Geoscience of the Kawerau reservoir
... relatively young and is one of the earth’s most active geothermal regions. Over time, magma moved into the stretched and fractured crust of the zone resulting in temperatures of at least 350°C at depths of less than 5 km. This provides a huge heat source from which geothermal systems have developed ...
... relatively young and is one of the earth’s most active geothermal regions. Over time, magma moved into the stretched and fractured crust of the zone resulting in temperatures of at least 350°C at depths of less than 5 km. This provides a huge heat source from which geothermal systems have developed ...
Plate Tectonics - vandek58
... Clues to Pangaea Rock Clues Similar rock structures are found on different continents Ex. Appalachian Mountains: Eastern U.S. Greenland Western Europe ...
... Clues to Pangaea Rock Clues Similar rock structures are found on different continents Ex. Appalachian Mountains: Eastern U.S. Greenland Western Europe ...
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.