Digital database of the previously published geologic map of the O'Neill 1x2 degree quadrangle, Nebraska
This digital data release contains geospatial data for the geologic map of the O’Neill 1 degree by 2 degree geologic map in Nebraska, originally published in 2008 by R.E. Diffendal and others. The original map consists of a 1:250,000 scale map plate with a “stack unit” structure showing multiple overlying units, as well as several roughly 1:750,000 scale maps in an accompanying pamphlet showing bedrock geology and structure contours. To capture as much of this content as possible in a geodatabase, three “layers” are included in this database: 1) Overlay polygons showing Quaternary loess deposits (Qes) where they overlay older Quaternary units; 2) a layer (consisting of line and polygon feature classes) showing Quaternary and bedrock units as depicted on the published 1:250,000 scale map (with the exception of Qes as described above), 3) a “bedrock” layer (consisting of line and polygon feature classes), showing pre-Quaternary units. Vector data were created by a combination of exporting vectors from published PDF files and hand digitizing against georegistered images of the published map and associated pamphlet figures. Required fields and non-spatial tables were populated with data from the printed map and pamphlet. The spatial data are accompanied by non-spatial tables that describe the sources of geologic information, a description of geologic map units, a glossary of terms, and a Data Dictionary that duplicates the Entity and Attribute information contained in the metadata file.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Joseph P Colgan",
"@type": "vcard:Contact",
"hasEmail": "mailto:jcolgan@usgs.gov"
}
|
| description | This digital data release contains geospatial data for the geologic map of the O’Neill 1 degree by 2 degree geologic map in Nebraska, originally published in 2008 by R.E. Diffendal and others. The original map consists of a 1:250,000 scale map plate with a “stack unit” structure showing multiple overlying units, as well as several roughly 1:750,000 scale maps in an accompanying pamphlet showing bedrock geology and structure contours. To capture as much of this content as possible in a geodatabase, three “layers” are included in this database: 1) Overlay polygons showing Quaternary loess deposits (Qes) where they overlay older Quaternary units; 2) a layer (consisting of line and polygon feature classes) showing Quaternary and bedrock units as depicted on the published 1:250,000 scale map (with the exception of Qes as described above), 3) a “bedrock” layer (consisting of line and polygon feature classes), showing pre-Quaternary units. Vector data were created by a combination of exporting vectors from published PDF files and hand digitizing against georegistered images of the published map and associated pamphlet figures. Required fields and non-spatial tables were populated with data from the printed map and pamphlet. The spatial data are accompanied by non-spatial tables that describe the sources of geologic information, a description of geologic map units, a glossary of terms, and a Data Dictionary that duplicates the Entity and Attribute information contained in the metadata file. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P9B9F0GL",
"mediaType": "application/http",
"description": "Landing page for access to the data"
},
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
"mediaType": "text/xml",
"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.630fb899d34e36012efa0994.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_630fb899d34e36012efa0994 |
| keyword |
[
"Cretaceous",
"GeMS",
"Geologic Map Schema",
"NCGMP",
"NGS",
"National Cooperative Geologic Mapping Program",
"National Geologic Synthesis Project",
"Nebraska",
"O'Neill",
"Quaternary",
"Tertiary",
"US Geoframework Initiative",
"USGI",
"USGS:630fb899d34e36012efa0994",
"geologic maps",
"geoscientificInformation",
"structure contours"
]
|
| modified | 2022-10-28T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -99.9973, 41.9536, -98.0082, 43.0457 |
| theme |
[
"Geospatial"
]
|
| title | Digital database of the previously published geologic map of the O'Neill 1x2 degree quadrangle, Nebraska |
