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  3. Database for the geologic map of the central San Juan caldera cluster, southwestern Colorado

Database for the geologic map of the central San Juan caldera cluster, southwestern Colorado

Dates

Publication Date
Start Date
1986
End Date
1999

Citation

Robinson, J.E., Thomas N., Dutton, D.R., Ramsey, D.W., Lipman, P.W., and Felger, T.J., 2022, Database for the geologic map of the central San Juan caldera cluster, southwestern Colorado: U.S. Geological Survey data release, https://doi.org/10.5066/P96QT04Y.

Summary

This geodatabase contains all the geologic map information for the Geologic Map of the San Juan caldera cluster, southwestern Colorado and is part of U.S. Geological Survey Geologic Investigations Map Series I-2799. The San Juan Mountains are the largest erosional remnant of a composite volcanic field that covered much of the southern Rocky Mountains in middle Tertiary time. The San Juan field consists mainly of intermediate-composition lavas and breccias, erupted about 35-30 Ma from scattered central volcanoes (Conejos Formation) and overlain by voluminous ash-flow sheets erupted from caldera sources. In the central San Juan Mountains, eruption of at least 8,800 km3 of dacitic-rhyolitic magma as nine major ash flow sheets (individually [...]

Contacts

Point of Contact :
Joel E Robinson
Process Contact :
Joel E Robinson
Originator :
Joel E Robinson, Nicole Thomas, Dillon R Dutton, David W Ramsey, Peter W Lipman, Tracey J Felger
Metadata Contact :
Joel E Robinson
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
USGS Mission Area :
Natural Hazards
SDC Data Owner :
Volcano Science Center

Attached Files

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

CentralSanJuanCalderaCluster_P96QT04Y.mpk
“ESRI Map Package version of database” 		19.96 MB x-gis/x-mpk
CentralSanJuanCalderaCluster_P96QT04Y.xml
“FGDC formatted overview metadata file for this data release”
Original FGDC Metadata
View 		24.36 KB application/fgdc+xml
ArcMapDocument_Geodatabase.zip
“Zip file contains ESRI file geodatabase and ArcMap document” 		17.2 MB application/zip
FGDC_Metadata.zip
“Zip file contains FGDC formatted metadata files for all files” 		111.5 KB application/zip
NonESRI_GIS_Files.zip
“Zip file contains Shapefile, GeoJSON, and Geopackage format version of database” 		84.54 MB application/zip
Extension: CentralSanJuanCalderaCluster_P96QT04Y.zip
CentralSanJuanCalderaCluster_P96QT04Y.sd
“ESRI service definition file” 		11.6 MB
thumbnail.png thumbnail 37.57 KB

Purpose

This geodatabase was constructed in order to produce a geologic map as a basis for understanding processes involved in the eruptions that built the central San Juan caldera cluster.
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Map

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Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P96QT04Y

ArcGIS REST Service Extension


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