Online Links:
| Value | Definition |
|---|---|
| contact, approx. located | Contact whose position is not precisely located |
| CaCOvein, certain | Calcium carbonate vein |
| bed, limestone | Location of limestone bed |
| bed, sandstone | Location of sandstone bed |
| bed, siltstone | Location of siltstone bed |
| contact, certain | Observed contact |
| contact, concealed | Concealed contact whose position is inferred |
| contact, inferred | Contact whose position is inferred |
| detachment fault, approx. located | Detachment fault whose position is not precisely known |
| detachment fault, certain | Observed detachment fault |
| detachment fault, concealed | Concealed detachment fault whose position is inferred |
| dike, approx. located | Dike whose position is not precisely known |
| dike, certain | Observed dike |
| dike, concealed | Concealed dike 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 | Concealed fault whose position is inferred |
| fault, inferred | Fault whose position is inferred |
| fault, inferred, queried | Fault whose position is inferred and questionable |
| map boundary, certain | Boundary of mapped area |
| named fault | Fault that has been named |
| reverse fault, approx. located | Reverse fault whose position is not precisely known |
| reverse fault, concealed | Concealed reverse fault whose position is inferred |
| scar, debris flow | Location of debris flow scar |
| thrust fault, approx. located | Thrust fault whose position is not precisely known |
| thrust fault, concealed | Concealed thrust fault whose position is inferred |
| topographic, escarpment | Location of escarpment |
| water boundary, certain | Boundary of body of water |
| Value | Definition |
|---|---|
| f.a., anticline, approx. located | Anticlinal fold axis whose position is not precisely known |
| f.a., anticline, concealed | Concealed anticlinal fold axis whose position is inferred |
| f.a., anticline, inferred | Anticlinal fold axis whose position is inferred |
| 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 |
| f.a., syncline, inferred | Synclinal fold axis whose position is inferred |
| Value | Definition |
|---|---|
| bedding | Bedding orientation |
| Range of values | |
|---|---|
| Minimum: | 57 |
| Maximum: | 57 |
| Units: | degrees |
| Resolution: | 1 |
| Range of values | |
|---|---|
| Minimum: | 299 |
| Maximum: | 299 |
| 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 Point Dume 7.5' quadrangle.
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 Point Dume 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 pd-geol.e00 Depositional contacts, faults, and unit labels pd-strc.e00 Strike and dip information, fold axes pd-topo.e00 Topographic base map taken from a scan of a composite negative of the Point Dume 7.5 minute quadrangle (contour interval = 20 ft.)in format ARCE (version 7.x) Size: 22.2 |
|---|---|
| Network links: |
http://pubs.usgs.gov/of/1997/of97-276/ptdume.tar.gz |