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Table of Contents - Special Paper 391Net Dextral Slip, Leogen San Gregorio — Hosgri Fault Zone, Coastal California: Geologic Evidence and Tectonic ImplicationsEdited by: William R. Dickinson, Mihai Ducca, Lewis I. Rosenberg, H. Gary Greene, Stephan A. Graham, Joseph C. Clark, Gerald E. Weber, Steven Kidder, W. Gary Ernst, and Earl E. Brabb |
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| Abstract | 1 |
| Introduction | 2 |
| Tectonic Setting | 3 |
| Slip Rate over Time | 5 |
| Course of Fault | 5 |
| San Gregorio Segment | 5 |
| Monterey Bay Segment | 5 |
| Big Sur Segment | 9 |
| San Simeon Segment | 11 |
| Hosgri Segment | 13 |
| Offset Nacimiento Fault | 13 |
| Cross-Fault Contrasts | 13 |
| Nature of Faulting | 14 |
| Regional Relations | 14 |
| Nacimiento Piercing Points | 16 |
| Big Creek Enclave | 16 |
| Shell Well Core | 17 |
| Alternate Piercing Points | 19 |
| Pigeon Point–Atascadero Correlation | 20 |
| Supportive Tertiary Exposures | 20 |
| Tectonic Reconstructions | 21 |
| Northern Salinian Block | 21 |
| Point Sur Franciscan Block | 23 |
| San Simeon and Point Sal | 25 |
| Regional Problems | 25 |
| Gualala Block Problem | 25 |
| Gualala Block Position | 27 |
| Gualala Stratal Relations | 27 |
| Gualala Fault Sliver | 28 |
| Alternate Gualala Restoration | 28 |
| Pilarcitos Fault Relations | 30 |
| Gualala Block Slip | 30 |
| Proto–San Andreas Question | 31 |
| Intra-Salinian Deformation | 33 |
| Tularcitos Saddle | 33 |
| Santa Lucia Transpression | 36 |
| Distributive Strike Slip | 36 |
| General Conclusions | 36 |
| Acknowledgments | 37 |
| References Cited | 37 |