National Assessment of Oil and Gas Project -...
URL: http://certmapper.cr.usgs.gov/data/noga00/prov67/spatial/doc/au67g.htm
The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown here as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates a set of known or postulated oil and (or) gas accumulations sharing similar geologic, geographic, and temporal properties within the Total Petroleum System, such as source rock, timing, migration pathways, trapping mechanism, and hydrocarbon type. The Assessment Unit boundary is defined geologically as the limits of the geologic elements that define the Assessment Unit, such as limits of reservoir rock, geologic structures, source rock, and seal lithologies. The only exceptions to this are Assessment Units that border the Federal-State water boundary. In these cases, the Federal-State water boundary forms part of the Assessment Unit boundary.
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Additional Information
| Field | Value |
|---|---|
| Data last updated | July 10, 2012 |
| Metadata last updated | November 25, 2025 |
| Created | July 10, 2012 |
| Format | HTML |
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| Package id | 58830186-f5b3-4c21-abaf-101159148b1f |
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| Recycle removed | False |
| Resource group id | aa79350d-9ebd-45ea-be22-8effc995af30 |
| Resource type | file |
| State | active |
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