Growth of a tectonic ridge
- Geological Survey, Denver, CO (United States)
- Purdue Univ., West Lafayette, IN (United States). Dept. of Earth and Atmospheric Sciences
The 28 June 1992 Landers, California, earthquake of M 7.6 created an impressive record of surface rupture and ground deformation. Fractures extend over a length of more than 80 km including zones of right-lateral shift, steps in the fault zones, fault intersections and vertical changes. Among the vertical changes was the growth of a tectonic ridge described here. In this paper the authors describe the Emerson fault zone and the Tortoise Hill ridge including the relations between the fault zone and the ridge. They present data on the horizontal deformation at several scales associated with activity within the ridge and belt of shear zones and show the differential vertical uplifts. And, they conclude with a discussion of potential models for the observed deformation.
- Research Organization:
- US Geological Survey, Denver, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- FG02-93ER14365
- OSTI ID:
- 677056
- Report Number(s):
- USGS-OFR-97-153; ON: DE99000965; TRN: AHC29821%%189
- Resource Relation:
- Other Information: PBD: 1997
- Country of Publication:
- United States
- Language:
- English
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