Physical Geology: Earth RevealedCoverage of plate tectonics is moved to the beginning of the book. The text is also used as the official Annenberg CPB distributed telecourse for physical geology.The beautiful new art program and interactive writing style will grab students' attention and further their interest in the subject. |
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Page 26
... deep mines penetrate 3 kilo- meters ( 2 miles ) into the earth , and a deep oil well may go as far as 8 kilometers beneath the surface ; the deepest scientific well has reached 12 kilometers in Russia . Rock samples can be brought up ...
... deep mines penetrate 3 kilo- meters ( 2 miles ) into the earth , and a deep oil well may go as far as 8 kilometers beneath the surface ; the deepest scientific well has reached 12 kilometers in Russia . Rock samples can be brought up ...
Page 29
... Deep Drilling on Continents The structure and composition of most of the continental crust is unknown . Surface mapping and seismic reflection and refraction suggest that the continents are largely ig- neous and metamorphic rock , such ...
... Deep Drilling on Continents The structure and composition of most of the continental crust is unknown . Surface mapping and seismic reflection and refraction suggest that the continents are largely ig- neous and metamorphic rock , such ...
Page 157
... deep 70-350 km deep 350-670 km deep Shallow focus earthquakes are most common ; they account for 85 % of total quake energy released . Intermediate ( 12 % ) and deep ( 3 % ) focus quakes are rarer because most deep rocks flow ...
... deep 70-350 km deep 350-670 km deep Shallow focus earthquakes are most common ; they account for 85 % of total quake energy released . Intermediate ( 12 % ) and deep ( 3 % ) focus quakes are rarer because most deep rocks flow ...
Contents
Chapter | 6 |
Box 8 | 8 |
Delivering Alaskan OilThe Environment vs the Economy | 10 |
Copyright | |
74 other sections not shown
Common terms and phrases
abyssal plains andesite asthenosphere atoms basalt basin beds beneath Benioff zone California Canyon caused chapter chemical weathering composition continental crust continental rise continental slope continents convection converging boundary cooling core craton crystal deep deposited depth dikes diverging boundary drilling earth's crust earth's surface earthquakes erosion eruptions feldspar folds fossils fracture zones gabbro geologists granite gravity heat flow horizontal hot mantle igneous rock isostatic kilometers lava flows lithosphere mafic magma magnetic anomalies mantle rock melting metamorphic rocks meteorites meters mid-oceanic ridge million mountain belt mountain ranges move normal faults occur oceanic crust oceanic trenches Photo plate boundaries plate motion plate tectonics plutonic pressure quake quartz reef regions ridge crest rift valley San Andreas fault sandstone sea floor sea level sediment sedimentary rock seismic waves shale shown in figure silicate soil solidified stress structure subducting plate temperature terrane thick turbidity currents U.S. Geological Survey uplift volcanoes