Geology Underfoot in Death Valley and Owens ValleyMountain Press Pub., 1997 - 319 pagine Eastern California boasts the greatest dryland relief in the contiguous United States--between Mt. Whitney and Death Valley--and that relief exposes spectacular geology. These thirty driving and walking tours each weave the tale of a geological features or relationship in this land of extremes. Some sketches ponder questions that puzzle geologists: how do stones slide across Racetrack playa? Others spotlight the earth-sculpturing role of volcanoes and earthquakes: lava columns at Devils Postpile and fault scarps that shape a golf course. Still others focus on less obvious but equally powerful processes: boulders shattered by salt crystals and rocks blasted by windblown sand. |
Sommario
Wind at Work | 161 |
The Falls of an Ice Age | 177 |
A Frightful Earthquake | 195 |
Copyright | |
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Geology Underfoot in Death Valley and Owens Valley Robert Phillip Sharp,Allen F. Glazner Anteprima limitata - 1997 |
Parole e frasi comuni
Alabama Hills alluvial fans Badwater Badwater Road basalt basin bedrock Black Mountains boulders bristlecone pines California 190 carbonate channel cones Convict Lake Copper Canyon Coulee cracks crest Death Valley deposits desert Devils Postpile dike dolomite dune Earthquake fault east erosion eruptions explosion fault scarp feet floor fragments Furnace Creek Furnace Creek Wash Geologists glacial glacier glass Gower Gulch granite gravel gullies Helen inches Inyo Craters Knudsen photo Lake Manly lakebeds lava layers Little Hebe Lone Pine Long Valley caldera magma Mammoth Lakes Mammoth Mountain McGee Mesquite miles north miles south mineral Mojave River Mono domes moraine Mormon Point Mosaic Canyon Obsidian Dome Owens Lake Owens River Owens Valley Panamint parking area pavement pinnacles playa Precambrian pumice Racetrack rhyolite ridge sand shoreline side Sierra Nevada slope steep stones strandlines stream surface Tecopa Tioga trail tufa tuff turtleback Ubehebe Crater upstream varnish vignette volcanic wall wind