Metamorphic map of Vermont—A digital representation of the metamorphic map from the State bedrock geologic map of Doll and others, 1961

This data release provides a vector digital dataset developed from the published metamorphic map on the Centennial geologic map of Vermont. This data release is a digital representation of the metamorphic map shown on the bedrock geologic map of Doll and others (1961). The original publication from 1961 was is available in as paper only. A scanned raster version of the 1961 map was obtained from the National Geologic Map Database catalog and converted to the geologic map schema known as GeMS. The original metamorphic map was published at approximately 1:865,000-scale. The data release contains GIS files and a metadata file. The GIS files include ContactsAndFaults as lines, MapUnits as polygons of metamorphic zones, and MapUnitOverlayPolys as polygons. The metamorphic map units range from greenschist to granulite facies. Boundaries between metamorphic map units include metamorphic facies boundaries and faults. Source map: Doll, C.G., Cady, W.M., Thompson, J.B., and Billings, M.P., 1961, Centennial geologic map of Vermont, Vermont Geological Survey, Miscellaneous Map MISCMAP-01, 1:250,000-scale geologic map, ~1:865,000-scale metamorphic map. GIS data release: Weinmann, B.R., and Walsh, G.J., 2026, Metamorphic map of Vermont—A digital representation of the metamorphic map from the State bedrock geologic map of Doll and others, 1961: U.S. Geological Survey data release, https://doi.org/10.5066/P14HXEHO