Bedrock geologic map database for the Durango 1-degree x 2-degree quadrangle, southern Colorado: Contributions to the National Geologic Map

Dates

Publication Date: 2023-10-18
Time Period: 2023

Citation

Turner, K. J., Gilmer, A. K., Workman, J. B., Thompson, R. A., Sweetkind, D., Colgan, J. P., Deschesne, M., Zellman, K. L., and Alexander, K. A., 2023, Bedrock geologic map database for the Durango 1-degree x 2-degree quadrangle, southern Colorado: Contributions to the National Geologic Map: U.S. Geological Survey data release, https://doi.org/10.5066/P9VIF2ZS.

Summary

This data release presents geologic map data for the bedrock geology of the Durango 1-degree by 2-degree quadrangle. Geologic mapping incorporates new interpretive contributions and compilation from published geologic map data sources primarily ranging from 1:24,000 to 1:50,000 scale. Much of the geology incorporated from published geologic maps is adjusted based on digital elevation model and natural-color image data sources to improve spatial resolution of the data. Spatial adjustments and new interpretations also eliminate mismatches at source map boundaries. This data set represents only the bedrock geology; deposits of unconsolidated, surficial materials that are typically, but not exclusively, Quaternary in age, are not included [...]

Summary

This data release presents geologic map data for the bedrock geology of the Durango 1-degree by 2-degree quadrangle. Geologic mapping incorporates new interpretive contributions and compilation from published geologic map data sources primarily ranging from 1:24,000 to 1:50,000 scale. Much of the geology incorporated from published geologic maps is adjusted based on digital elevation model and natural-color image data sources to improve spatial resolution of the data. Spatial adjustments and new interpretations also eliminate mismatches at source map boundaries. This data set represents only the bedrock geology; deposits of unconsolidated, surficial materials that are typically, but not exclusively, Quaternary in age, are not included in this database. Bedrock in the context of this database includes all metamorphic, sedimentary, and igneous rocks regardless of age. Bedrock geology is continuous to the extent that map units and structures can be appropriately constrained, including throughout areas overlain by surficial deposits. Line features that are projected through areas overlain by surficial deposits are generally attributed with lower identity and existence confidence, larger locational confidence values, and a compilation method in the MethodID field indicating features were projected beneath cover (see Turner and others [2022] for a description of MethodID field). Map units represented in this database range from Paleoproterozic and Mesoproterozic metamorphic and intrusive rocks to Pliocene and Quaternary sedimentary and volcanic rocks. Map units and structures in this data set reflect multiple events that are significant at regional and continental scales including multiple Proterozoic accreted terranes, magmatic episodes, supracrustal depositional environments, and continental margin environments, Ancestral Rocky Mountains, Laramide orogeny, Southern Rocky Mountains volcanism, and Rio Grande rift in the Phanerozoic. Map units are organized within geologic provinces as described by the Seamless Integrated Geologic Mapping (SIGMa) (Turner and others, 2022) extension to the Geologic Map Schema (GeMS) (USGS, 2020). Geologic provinces are used to organize map units based on time-dependent, geologic events rather than geographic or rock type groupings that are typical of traditional geologic maps. The detail of geologic mapping varies from about 1:50,000- to 1:250,000-scale depending on the scale of published geologic maps and new mapping based on field observations or interpretation from basemap data. The database follows the schema and structure of SIGMa (Turner and others, 2022) that is an extension to GeMS (USGS, 2020).

Turner, K.J., Workman, J.B., Colgan, J.P., Gilmer, A.K., Berry, M.E., Johnstone, S.A., Warrell, K.F., Dechesne, M., VanSistine, D.P., Thompson, R.A., Hudson, A.M., Zellman, K.L., Sweetkind, D., and Ruleman, C.A., 2022, The Seamless Integrated Geologic Mapping (SIGMa) extension to the Geologic Map Schema (GeMS): U.S. Geological Survey Scientific Investigations Report 2022–5115, 33 p., https://doi.org/ 10.3133/ sir20225115.

U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020, GeMS (Geologic Map Schema)-A standard format for the digital publication of geologic maps: U.S. Geological Survey Techniques and Methods, book 11, chap. B10, 74 p., https://doi.org/10.3133/tm11B10.

Contacts

Point of Contact :: Kenzie J Turner, U.S. Geological Survey
Originator :: Kenzie J Turner, Amy K Gilmer, Jeremiah B Workman, Ren A Thompson, Donald S Sweetkind, Joseph P Colgan, Marieke Dechesne, Kristine L Zellman, Katherine A Alexander
Metadata Contact :: Kenzie J Turner, U.S. Geological Survey
Publisher :: U.S. Geological Survey
Distributor :: U.S. Geological Survey - ScienceBase
SDC Data Owner :: Geosciences and Environmental Change Science Center
USGS Mission Area :: Core Science Systems

Attached Files

sorting

Metadata First

Recent First

Alphabetical

Click on title to download individual files attached to this item.

Durango_BedrockGeologicMapV2-metadata.xml “Metadata” Original FGDC Metadata	View	246.44 KB	application/fgdc+xml
Durango_BedrockGeologicMap_V2_DataDictionary.xlsx “Data dictionary”		21.08 KB	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Durango_BedrockGeologicMapV2.gdb.zip “File geodatabase of geologic map”		9.25 MB	application/zip
Durango_bedrock_Thumbnail.png “Thumbnail”		1.38 MB	image/png
Shapefiles_CSVs.zip “Shapefile and CSV files of geologic map database”		9.83 MB	application/zip
Symbology.zip “ArcPro .lyrx files with map symbology”		66.76 KB	application/zip
Durango_Bedrock_Version_History.txt “Version History”		7.01 KB	text/plain

Purpose

The purpose of the data set is to present geologic map data at a variable scale between approximately 1:50,000 to 1:250,000 that will contribute to the National Geologic Map, an intermediate-scale, seamless, and integrated geologic map database of the nation.

Bedrock geologic map database for the Durango 1-degree x 2-degree quadrangle, southern Colorado: Contributions to the National Geologic Map

Dates

Citation

Summary

Summary

Contacts

Attached Files

sorting

Metadata First

Recent First

Alphabetical

Purpose

Preview Image

Map

Communities

Associated Items

Tags

Provenance

Additional Information

Identifiers

Item Actions

View Item as ...

Save Item as ...

View Item...

Dates

Citation

Summary

Summary

Contacts

Attached Files sorting Metadata First Recent First Alphabetical

Purpose

Preview Image

Map

Communities

Associated Items

Tags

Provenance

Additional Information

Identifiers

Item Actions

View Item as ...

Save Item as ...

View Item...

Attached Files

sorting

Metadata First

Recent First

Alphabetical