Geologic Map of the Elsinore Quadrangle, Riverside County, California

Riverside County, California, is covered by this digital geologic map database for the Elsinore 7.5-minute quadrangle. The dataset includes ARC/INFO coverages, a Postscript plotting file with a Correlation of Map Units diagram, and PDF versions of the map and documentation. The map units are identified by formation name, age, and lithology, with grain size indicated by subscripted letters.

Use Cases

• Conducting regional geologic analysis based on formation names, ages, and lithologies.
• Creating derivative maps for hazard assessment using the detailed unit symbols and grain size indicators.
• Studying stratigraphic nomenclature and unit correlations using the included Correlation of Map Units diagram.
• Integrating geologic data into GIS projects using the provided ARC/INFO coverages.

Strengths

• Includes a Correlation of Map Units diagram and Description of Map Units for context.
• Map units are identified by standard geologic criteria: formation name, age, and lithology.
• Provides data in multiple formats: ARC/INFO coverages, Postscript, and PDF.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• The report notes test plots have not produced precise 1:24,000-scale map sheets.

Provenance

Source

U.S. Geological Survey (USGS) via the CEOS_EXTRA organization.

Collection Method

Digital geologic mapping, compiled as an Open-File Report adhering to USGS stratigraphic nomenclature.

Time Range

null

Freshness

Last update date is unknown; freshness unverified.

Geography

Elsinore 7.5-minute quadrangle, Riverside County, California, USA.