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. |
From inside the book
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Page 72
... Continents fixed , poles wander . ( B ) Poles fixed , continents drift . For simplicity , the continents in B are shown as having moved as a unit , without changing positions relative to one another . If continents move , they should ...
... Continents fixed , poles wander . ( B ) Poles fixed , continents drift . For simplicity , the continents in B are shown as having moved as a unit , without changing positions relative to one another . If continents move , they should ...
Page 74
... continent shows a different position for the Permian pole . A different magnetic pole for each continent seems highly unlikely . A better explanation is that a single pole stood still while continents split apart and rotated as they ...
... continent shows a different position for the Permian pole . A different magnetic pole for each continent seems highly unlikely . A better explanation is that a single pole stood still while continents split apart and rotated as they ...
Page 75
... continents are continental shelves ( part of continents ) . Colored areas within continents are broad belts of rock that correlate in type and age from one continent to another . Arrows show direction of glacier movement as determined ...
... continents are continental shelves ( part of continents ) . Colored areas within continents are broad belts of rock that correlate in type and age from one continent to another . Arrows show direction of glacier movement as determined ...
Contents
Chapter | 6 |
Box 8 | 8 |
Delivering Alaskan OilThe Environment vs the Economy | 10 |
Copyright | |
73 other sections not shown
Common terms and phrases
active America anomalies atoms basalt becomes beds beneath block boundary break building California called caused chapter chemical composition continental continental crust continents cooling core crystal currents deep deposited depth described determine direction earth's magnetic field earth's surface earthquakes erosion eruptions evidence example explain fault field figure flow folds forces geologic geologists granite gravity heat horizontal igneous increase indicate island kilometers land lava layers less lines lithosphere lower magma magnetic mantle margin mass material melting metamorphic meters mid-oceanic ridge million minerals motion mountain belt move movement normal North occur oceanic crust original Photo plains plate tectonics poles position present pressure processes quake quartz range regions relatively ridge rise sea floor sediment sedimentary rock seismic seismic refraction shown slope soil South stress structure subduction surface temperature theory thick Trench United usually volcanoes waves weathering zone