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 58
... mid - oceanic ridge and also with the riftless crest of the ridge in the Pacific Ocean , are shallow - focus earthquakes from 0 to 20 kilometers below the sea floor . Careful measurements of the heat loss from the earth's in- terior ...
... mid - oceanic ridge and also with the riftless crest of the ridge in the Pacific Ocean , are shallow - focus earthquakes from 0 to 20 kilometers below the sea floor . Careful measurements of the heat loss from the earth's in- terior ...
Page 62
... mid - oceanic ridge and becomes progressively thicker away from the ridge crest ( distribution of sediment highly simplified ) . Figure 3.23 Photograph ( taken through a scanning - electron microscope ) of pelagic sediment from the ...
... mid - oceanic ridge and becomes progressively thicker away from the ridge crest ( distribution of sediment highly simplified ) . Figure 3.23 Photograph ( taken through a scanning - electron microscope ) of pelagic sediment from the ...
Page 78
... ridge crest Age ( millions of years ago ) -Normal magnetism 0.5 1.0 -Reverse magnetism 1.5 Oceanic crust A Positive ... mid - 1960s , magnetometer surveys at sea disclosed some intriguing characteristics of marine magnetic anomalies . Most ...
... ridge crest Age ( millions of years ago ) -Normal magnetism 0.5 1.0 -Reverse magnetism 1.5 Oceanic crust A Positive ... mid - 1960s , magnetometer surveys at sea disclosed some intriguing characteristics of marine magnetic anomalies . Most ...
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