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By William M. Brown III

About The Product

Published by means of the yank Geophysical Union as a part of the Field journey Guidebooks Series.

This guidebook describes an built-in software of box journeys and workshops on landslides in critical California. this system emphasizes cutting-edge strategies for spotting, mapping, interpreting, and mitigating a number of landslide approaches in city, rural, and common settings through the diverse geologic terrain of relevant California. The workshops additionally draw upon pertinent examples of landslide strategies from different components to demonstrate specific theories and practices. the sector journeys stopover at landslide parts and box learn stations, and are interspersed with workshops on landslides brought about via precipitation and earthquakes, computerized terrain mapping, submarine landslide procedures, box experimentation, landslide mapping suggestions, landslide risk mitigation via structural and nonstructural measures, and landslide coverage concerns. The three-day box journey throughout California from the Pacific Ocean to the Sierra Nevada makes a speciality of the amazing good looks and engaging geology of the California Coast levels, Yosemite nationwide Park, and monstrous Lakes region.

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Extra info for Landslides in Central California: San Francisco and Central California, July 20-29, 1989

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T381: 48 EARTHQUAKE-INDUCED LANDSLIDES, MAMMOTH LAKES AREA, CALIFORNIA Edwin L. Harp and David K. S. 0 or greater (Archuleta and others, 1982) on May 25-27, 1980, at Mammoth Lakes, California, triggered 5,200 landslides throughout an area of approximately 1200 km 2. The landslides extended from Owens River Gorge on the east to Yosemite Valley about 70 km to the west (Wieczorek, 1981), and from Mount Darwin to 5 km northwest of Benton Crossing on the north (fig. 1; Harp and others, 1984). Landslides from this earthquake sequence were almost all rock falls and rock slides; however, four lateral-spread failures occurred, three due to liquefaction.

Photograph by William R. Cotton, January 6, 1982. T381: 28 LOVE CREEK LANDSLIDE FAILURE, SANTA CRUZ COUNTY, CALIFORNIA William R. Cotton and Patrick O. , Los Gatos, California l INTRODUCTION Starting in Menlo Park, this excursion will proceed south paralleling the crest of the Santa Cruz Mountains to the town of Los Gatos. From there, we will begin the traverse of a major plate boundary, several fault zones, and a diversity of geologic units on our way to Ben Lomond, a mountain community located near the Love Creek landslide.

Included in this lower area are some relatively flat surfaces and associated closed depressions whose origins have been attti buted to prehistoric landsliding (fig. 6). c MAIN SCARP STABLE BEDROCK j SAND LAYER CLAY LAYER C' SE E DETAIL FIG. '" .... • • '. ". :. • .... :.. ,~4 MAIN SCARP . 7~/.. :: ANCIENT STATIC. ' FIGURE 7 Schematic cross-section of the geologic conditions in the main scarp area of the Love Creek landslide. •. 4~/ / .. /_~•• / . ~ thin layer of clay and sand. :: .. ~,//. / . , .

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