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R. F. Yerkes

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This Open-File report is a digital geologic map database. Thisdigital map database is compiled from previously published sourcescombined with some new mapping and modifications in nomenclature.The geologic map database delineates map units that are identifiedby general age and lithology following the stratigraphicnomenclature of the U. S. Geological Survey. For detaileddescriptions of the units, their stratigraphic relations, sourcesof geologic mapping, and data on exploratory wells consult Yerkes(1997), and Yerkes and Showalter (1990).
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This Open-File report is a digital geologic map database. Thisdigital map database is compiled from previously published sourcescombined with some new mapping and modifications in nomenclature.The geologic map database delineates map units that are identifiedby general age and lithology following the stratigraphicnomenclature of the U. S. Geological Survey. For detaileddescriptions of the units, their stratigraphic relations, sourcesof geologic mapping, and data on exploratory wells consult Yerkes(1996), and Yerkes and Showalter (1990). More specific informationabout the units may be available in the original sources.
thumbnail
This Open-File report is a digital geologic map database. Thisdigital map database is compiled from previously published sourcescombined with some new mapping and modifications in nomenclature.The geologic map database delineates map units that are identifiedby general age and lithology following the stratigraphicnomenclature of the U. S. Geological Survey. For detaileddescriptions of the units, their stratigraphic relations, sourcesof geologic mapping, and data on exploratory wells consult Yerkes(1996), and Yerkes and Showalter (1990). More specific informationabout the units may be available in the original sources.
thumbnail
This Open-File report is a digital geologic map database. Thisdigital map database is compiled from previously published sourcescombined with some new mapping and modifications in nomenclature.The geologic map database delineates map units that are identifiedby general age and lithology following the stratigraphicnomenclature of the U. S. Geological Survey. For detaileddescriptions of the units, their stratigraphic relations andsources of geologic mapping consult Yerkes and Campbell (1993).
thumbnail
This Open-File report is a digital geologic map database. Thisdigital map database is compiled from previously published sourcescombined with some new mapping and modifications in nomenclature.The geologic map database delineates map units that are identifiedby general age and lithology following the stratigraphicnomenclature of the U. S. Geological Survey. For detaileddescriptions of the units, their stratigraphic relations andsources of geologic mapping consult Yerkes and Campbell (1994).More specific information about the units may be available in theoriginal sources.
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