Preliminary quaternary geologic maps of Santa Clara Valley, Santa Clara, Alameda, and San Mateo counties, California: A digital database

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/94-231/metadata.faq.html
Description This digital map database, which is compiled from previously unpublished and open-filed U.S. Geol. Survey reports (Wesling and Helley, 1989), represents the general distribution and identity of Quaternary deposits in eight 7.5 minute quadrangles in the
Originators Helley, E. J.; Graymer, Russell W.; Phelps, Geoffrey A.; Showalter, Patrick; and Wentworth, Carl M.
Publication U.S. Geological Survey Open-File Report 94-231

Related topics

States or counties

Overview of attributes

>Quadrangle abbrev.  Quadrangle full name
>
>cal                 Calaveras Reservoir quadrangle
>cup                 Cupertino quadrangle
>mil                 Milpitas quadrangle
>mtv                 Mountain View quadrangle
>pal                 Palo Alto quadrangle
>sje                 San Jose East quadrangle
>sjw                 San Jose West quadrangle
>sth                 Santa Teresa Hills quadrangle

http://pubs.usgs.gov/of/1994/of94-231/scc_q1.ReadMe.txt

XXX_UTM.PAT (XXX represents abbreviated quadrangle name)

Quaternary geologic map units

Label Definition
PTYPE Polygon type

XXX_UTM.AAT (XXX represents abbreviated quadrangle name)

Linear geologic features

Label Definition
LTYPE Line type

XXX_UTM.PAT (XXX represents abbreviated quadrangle name)

Quaternary geologic map units at specific locations (same attributes as polygon coverage XXX_UTM.PAT)

Label Definition

CORR_UTM.PAT

Correlation table for the units in these maps (same attributes as polygon coverage XXX_UTM.PAT)

Label Definition

CORR_UTM.AAT

Linear features in correlation table for the units in these maps (same attributes as arc coverage XXX_UTM.AAT)

Label Definition

CORR_UTM.PAT

Point features of correlation table for the units in these maps (same attributes as polygon coverage XXX_UTM.PAT)

Label Definition

EXPLSC_UTM.PAT

Map explanation and key (same attributes as polygon coverage XXX_UTM.PAT)

Label Definition

EXPLSC_UTM.AAT

Linear features on map explanation and key (same attributes as arc coverage XXX_UTM.AAT)

Label Definition

EXPLSC_UTM.PAT

Point coverage of map explanation and key (same attributes as polygon coverage XXX_UTM.PAT)

Label Definition