Geology of the Palo Alto 30 X 60 minute quadrangle, California: A digital database

Online link
Description Some of the benefits that can be derived from these geologic maps are: >1. Materials properties >2. Earthquake shaking >3. Liquefaction potential >4. Ground water pollution >5. Relating landslides >6. Location of mineral hazards >7. Seismic velocit
Originators Brabb, Earl E.; Graymer, Russell W.; and Jones, D. L.
Publication U.S. Geological Survey Open-File Report 98-348

Related topics

States or counties


Geologic map

Label Definition
UNIT Numeric code used to identify the geologic unit which is described in teh CDA.RU look-up table.


Linear features on geologic map

Label Definition
LINECODE Numeric code used to identify the type of linear feature. Linecodes <100 are used for contacts and boundaries which are described in the CDA.CON look-up table. Linecodes >100 and <600 represent structural features which are described in the CDA.STR look-up table.
NAME Name given to structral feature.


Geologic map units at specific locations (same attributes as polygon coverage of the same name)

Label Definition