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
Results 1-3 of 54
Page 86
... subduction changes with depth , usually becoming steeper ( figure 4.29 ) . Some plates crumple or break into segments as they descend . The descending plate somehow generates andesitic magma when it reaches a depth of 100 kilometers ...
... subduction changes with depth , usually becoming steeper ( figure 4.29 ) . Some plates crumple or break into segments as they descend . The descending plate somehow generates andesitic magma when it reaches a depth of 100 kilometers ...
Page 114
... subduction Magma Arc - continent convergence can weld an island arc onto a continent . The direction of subduction changes after impact . simultaneously . In other words , the accumulation stage and the orogenic stage are taking place ...
... subduction Magma Arc - continent convergence can weld an island arc onto a continent . The direction of subduction changes after impact . simultaneously . In other words , the accumulation stage and the orogenic stage are taking place ...
Page 490
... subduction zone . Different metallic ores ( and different igneous rocks ) are generated at different depths along a subducted plate . A Ore Ore Subduction of the sea floor beneath a continent produces broad belts of metallic ore ...
... subduction zone . Different metallic ores ( and different igneous rocks ) are generated at different depths along a subducted plate . A Ore Ore Subduction of the sea floor beneath a continent produces broad belts of metallic ore ...
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