Strain in southern California: Measured uniaxial north-south regional contraction
Science
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Abstract
The plate tectonics model of the Pacific moving northwest relative to North America implies that the regional strain in California should be simple shear across a vertical plane striking N45°W or equivalently equal parts of north-south contraction and east-west extension. Measurements of the strain accumulation at seven separate sites in southern California in the interval 1972 through 1978 indicate a remarkably consistent uniaxial north-south contraction of about 0.3 part per million per year; the expected east-west extension is absent. It is not clear whether the period from 1972 through 1978 is anomalous or whether the secular strain in southern California is indeed a uniaxial north-south contraction.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Strain in southern California: Measured uniaxial north-south regional contraction |
| Series title | Science |
| DOI | 10.1126/science.202.4370.883 |
| Volume | 202 |
| Issue | 4370 |
| Year Published | 1978 |
| Language | English |
| Publisher | American Association for the Advancement of Science |
| Description | 3 p. |
| First page | 883 |
| Last page | 885 |
| Country | United States |
| State | California |
| Other Geospatial | southern California |