|air photo attitude||Attitude of bedding determined from air photo|
|anti arrow||Anticline arrow|
|approx bedding||Bedding whose orientation is not exact|
|fault ss rl||Right-lateral strike-slip fault orientation|
|flat bedding||Bedding whose dip is near horizontal|
|syn arrow||Syncline arrow|
|vert bedding||Bedding whose dip is vertical|
|Dip direction from distant view||Dip of bedding taken from a distance (not precise)|
|ot bedding||Overturned bedding|
|Range of values|
|Range of values|
|arrow, certain||Location of arrow on geological map|
|contact, certain||Location of contact on geological map|
|f.a., anticline, certain||Anticlinal fold axis whose position was observed|
|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, concealed||Concealed syncline fold axis whose position is inferred|
|f.a., syncline, inferred||Synclinal fold axis whose position is inferred|
|contact, approx. located||Contact whose position is not precise|
|contact, certain||Observed contact|
|contact, concealed||Concealed contact whose position is inferred|
|contact, inferred||Contact whose position is inferred|
|contact, inferred, queried||Contact whose position is inferred and questionable|
|contact, sag pond, approx. location||Contact of sag pond whose position is not precisely known|
|contact, sag pond, certain||Observed sag pond contact|
|contact, sag pond, inferred, queried||Sag pond contact whose position is inferred and questionable|
|fault, certain||Observed fault|
|fault, concealed||Concealed fault whose position is inferred|
|fault, concealed, queried||Concealed fault whose position is inferred and questionable|
|fault, inferred||Fault whose position is inferred|
|fault, inferred, queried||Fault whose position is inferred and questionable|
|map boundary,||Location of map boundary|
|scratch boundary||Location of scratch boundary|
|thrust fault, certain||Observed thrust fault|
|thrust fault, concealed||Concealed thrust fault whose position is inferred|
|thrust fault, inferred||Thrust fault whose position is inferred|
|thrust fault, inferred, queried||Thrust fault whose position is inferred and questionable|
The present study was initiated as part of a regional study of the earthquake hazards of the San Francisco Bay region and is part of the National Earthquake Hazards Reduction Program (NEHRP) of the U.S. Geological Survey. Earl E. Brabb (USGS) established this project, provided base maps, aerial photographs, and other materials, and helped to obtain funding for much of the field work. Partial funding was provided by USGS NEHRP award number 1434-94-G-2443 to Rosenberg and Clark. Supplemental funding was provided by the Monterey County Planning Department under the supervision of Catherine S. West. We are also grateful to the USGS Volunteer Scientist Program for sponsoring Clark and Rosenberg.
Many people gave freely of their time and resources. John C. Tinsley (USGS) and Earl E. Brabb helped by visiting the study area and sharing their opinions. H. Gary Greene (Moss Landing Marine Laboratories), Joseph W. Oliver (Monterey Peninsula Water Management District), Oliver E. Bowen (consulting geologist), and John Logan (consulting geologist) provided unpublished data from their files. Kristin McDougall (USGS) identified and interpreted Miocene foraminifers. Michael P. Bohan (IUP) digitized the geologic contacts, and Carl M. Wentworth (USGS) and Russell W. Graymer (USGS) assisted with developing the digital map. The Explanation of Units sheet was created by Zenon C. Valin (USGS) with assistance from Karen Wheeler (USGS). Carolyn Randolph prepared this booklet announcing the release of the database in Open Files. Special thanks go to Thomas W. Dibblee, Jr., who participated with Clark in the earlier field mapping and shared his unique perspective of the regional geology, and to Richard R. Thorup for sharing his extensive knowledge of the local geology.
To provide to the public a digital geologic map database of the Monterey and Seaside 7.5' quadrangles.
Are there legal restrictions on access or use of the data?
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 "Geologic map of the Monterey and Seaside 7.5-minute quadrangles, Monterey County, California: a digital database," has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on the condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.
ARC/INFO export files Description of coverage Monterey 7.5' quadrangle: mobase_utm.e00 Vectorized topographic base map for the Monterey quadrangle mo_geol.e00 Geologic map mo_strc.e00 Strike and dip symbols and fold arrow markers mo_anno.e00 Fault names, U/D, locality numbers, and dip numbers mo_fold.e00 Fold axes mo_arws.e00 Landslide arrows Seaside 7.5' quadrangle: sebase_utm.e00 Vectorized topographic base map for the Seaside quadrangle se_geol.e00 Geologic map se_strc.e00 Strike and dip symbols and fold arrow markers se_anno.e00 Fault names, U/D, locality numbers, and dip numbers se_fold.e00 Fold axes se_arws.e00 Landslide arrowsin format ARCE (version 7.x) Size: 68