1. Geoscience Data Catalog

San Francisco Bay Region landslide folio part E - Map of debris-flow source areas in the San Francisco Bay region, California

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/97-745/e/metadata.faq.html
Description This map identifies the principal areas in the San Francisco Bay region that are likely to produce debris flows, which are also called "mudslides." Debris flows that occur in the bay region are fast-moving downslope flows of mud that may include rocks,
Originators Ellen, S. D.; Mark, R. K.; Wieczorek, Gerald. F.; Wentworth, Carl M.; Ramsey, D. W.; and May, T. E.
Publication U.S. Geological Survey Open-File Report 97-0745-E

Related topics

Geologic history, Geologic maps, Geology, Geospatial datasets, Landslides, Surficial geologic units, GeoscientificInformation

States or counties

Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Santa Cruz, Solano, Sonoma

OM-GEOL.PAT

Geologic map units symbols (no full descriptions found)

Label Definition

OM-GEOL.AAT

Linear geologic features

Label Definition
LTYPE Line type

OM-GEOL.PAT

Geologic map units at specific locations (same attributes as polygon coverage OM-GEOL.PAT)

Label Definition

OM-STRC.AAT

fold axes

Label Definition
LTYPE Line type

OM-STRC.PAT

Strike and dip information of bedding

Label Definition
PTTYPE Point type
DIP Dip of bedding
STRIKE Strike of bedding

OM-WELLS.PAT

Well localities, supporting data given in Yerkes and Campbell (1993), and Yerkes and Showalter (1990)

Label Definition
PTTYPE Point type (No definitions found)