File:NGMDB data model application.jpg
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Summary
| Description |
English: Figure 11. Simplified representation of the data model and its application to a typical, 2-D geologic map. The presence of a geologic unit on the map, referred to in the data model as an “occurrence” of that map unit, is described by: 1) its bounding contacts and faults, whose coordinates are stored as the unit’s “geometry”; and 2) its physical properties, which are stored as the unit’s “descriptors.” |
| Date | |
| Source | The National Geologic Map Database Project: Overview and Progress U.S. Geological Survey Open-File Report 03–471 |
| Author | David R. Soller1 and Thomas M. Berg |
Licensing
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