Evidence for 115 Kilometers of Right Slip on the San Gregorio-Hosgri Fault Trend
Abstract
The San Gregorio-Hosgri fault trend is a component of the San Andreas fault system on which there may have been about 115 kilometers of post-early Miocene right-lateral strike slip. If so, right slip on the San Andreas and San Gregorio-Hosgri faults accounts for most of the movement between the Pacific and North American plates since mid-Miocene time. Furthermore, the magnitude of right slip on a Paleogene proto-San Andreas fault inferred from the present distribution of granitic basement is reduced considerably when Neogene-Recent San Gregorio-Hosgri right slip is taken into account.
- Publication:
-
Science
- Pub Date:
- January 1978
- DOI:
- 10.1126/science.199.4325.179
- Bibcode:
- 1978Sci...199..179G