Online Links:
| Value | Definition |
|---|---|
| contact, approx. located | Contact whose position is not precisely located |
| contact, inferred | Contact whose position is inferred |
| fault, approx. located | Fault whose position is not precisely known |
| fault, certain | Observed fault |
| fault, concealed | Concealed fault whose position is inferred |
| fault, concealed, queried | Concealed fault whose position is questionable |
| fault, inferred | Fault whose position is inferred |
| fault, inferred, queried | Fault whose positoin is inferred and questionable |
| map boundary, certain | Boundary of mapped area |
| photo lineament | Lineament located through photo observations |
| reverse fault, approx. located | Reverse fault whose position is not precisely known |
| reverse fault, concealed | Concealed reverse fault whose position is inferred |
| s.s. fault, approx. located | Strike-slip fault whose position is not precisely known |
| s.s. fault, r.l., approx. located | Right-lateral strike-slip fault whose position is not precisely known |
| scratch boundary | Location of scratch boundary |
| shoreline, approx. located | Shoreline whose position is not exact |
| thrust fault, approx. located | Thrust fault whose position is not precisely known |
| thrust fault, concealed | Concealed thrust fault whose position is inferred |
| thrust fault, inferred | Thrust fault whose position is inferred |
| Value | Definition |
|---|---|
| f.a., anticline, approx. located | Anticlinal fold axis whose position is not precisely known |
| f.a., syncline, approx. located | Synclinal fold axis whose position is not precisely known |
| f.a., syncline, concealed | Concealed synclinal fold axis whose position is inferred |
| Value | Definition |
|---|---|
| bedding | Bedding orientation |
| foliation | Foliation orientation |
| ot bedding | Overturned bedding orientation |
| vert foliation and bedding | Bedding and foliation whose dip is 90 degrees |
| Range of values | |
|---|---|
| Minimum: | 5 |
| Maximum: | 90 |
| Units: | degrees |
| Resolution: | 1 |
| Range of values | |
|---|---|
| Minimum: | 1 |
| Maximum: | 358 |
| Units: | degrees |
| Resolution: | 1 |
R. H. Campbell, Reston, VA assisted in field interpretations and compilation; P. K. Showalter and C. M. Wentworth supplied critical custom programming; and S. E. Graham updated supporting files for completeness and consistency and prepared this report.
To provide to the public a digital geologic map database of the San Fernando 7.5' quadrangle, southern California
Are there legal restrictions on access or use of the data?Access_Constraints: none
Use_Constraints: none
This report is preliminary and has not been reviewed for conformity with U. S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U. S. Government.
This database, identified as "Preliminary Geologic Map of the San Fernando 7.5' Quadrangle, southern California: A Digital Database," has been approved for release and publication by the Director of the USGS. Although this database has been reviewed and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. This database is released on condition that neither the USGS nor the U. S. Government may be held liable for any damages resulting from its use.
| Data format: |
ARC/INFO export files Description of coverage sf-geol.e00 Depositional contacts, faults, and unit labels sf-strc.e00 Strike and dip information, fold axes sf-wells.e00 Exploratory oil wells sf-topo.e00 Topographic base map taken from a scan of a composite negative of the San Fernando 7.5 minute quadrangle (contour interval = 40 ft.)in format ARCE (version 7.x) Size: 14 |
|---|---|
| Network links: |
http://pubs.usgs.gov/of/1997/of97-163/sanfer.tar.gz |