Jones, D. L.

About the author


Preliminary geologic map emphasizing bedrock formations in Contra Costa County, California: A digital database

This digital map database, which is compiled from previously published and unpublished sources combined with new mapping, represents the general distribution and identity of bedrock in Contra Costa County, California.

Geologic map of the Hayward fault zone, Contra Costa, Alameda, and Santa Clara Counties, California: A digital database

This digital map database, compiled from previously open- filed U.S. Geological Survey reports (Graymer and others, 1994, Graymer, Jones, and Brabb, 1994) and unpublished data, represents the general distribution of rocks and faults in the Hayward faul

Preliminary geologic map emphasizing bedrock formations in Alameda County, California: A digital database

This Open-File report is a digital geologic map database of the Alameda County, California.

Geologic map and map database of northeastern San Francisco Bay region, California; Most of Solano County and parts of Napa, Marin, Contra Costa, San Joaquin, Sacramento, Yolo, and Sonoma Counties

This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text file (nesfmf

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

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

Geology of the onshore part of San Mateo County, California: A digital database

This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits in San Mateo County. Together with the accompanying text, it provide

Digital geologic map and map database of parts of Marin, San Francisco, Alameda, Contra Costa, and Sonoma Counties, California

This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text file (mageo.t

Geology of the Cordelia and the northern part of the Benicia 7.5 minute quadrangles, California: A digital map database

This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text file (cdbege

Geologic map and map database of the Palo Alto 30' X 60' quadrangle, California

This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text file (pamf.p