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Project #19: Opal Cliffs

  • Wendi Goldsmith
  • Donald Gray
  • John McCullah
Chapter

Abstract

GEOMORPHIC SETTING: Sea cliff subject to active erosion and periodic retreat. The Opal Cliffs-Capitola reach is characterized by an irregular shoreline backed by cliffs ranging from 35 to 75 ft in height. The coastal cliffs throughout most of the city of Santa Cruz and neighboring Capitola are composed of erodible sediments of the Purisma Formation (siltstone and sandstone) along with the Santa Cruz Mudstone. These sedimentary rocks are often capped by 6–20 ft of unconsolidated marine and non-marine terrace deposits. The horizontal bedrock stratigraphy is easily visible in exposed or bare sections of the cliffs.

Keywords

Coastal Cliff Cliff Face Geomorphic Setting Bare Section High Erosion Risk 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

ADDITIONAL READING:

  1. Brabb, E. (1997). Geologic Map of Santa Cruz County. US Geological Survey, Menlo Park, CAGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Wendi Goldsmith
    • 1
  • Donald Gray
    • 2
  • John McCullah
    • 3
  1. 1.Bioengineering GroupSalemUSA
  2. 2.Department of Civil and Environmental EngineeringThe University of MichiganAnn ArborUSA
  3. 3.Salix Applied EarthcareReddingUSA

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