revised:
05-Feb-2015
NMBGMR Draft Geologic Data Model - v. 1.0.4
KEY
In the interests of standardization and interoperability, we are migrating our geologic maps into the USGS
NCGMP09 data model. However, our
well data model is still actively being used. Documentation for the NMBGMR geology data model is being provided for users with legacy data in this model. We also hope that it will provoke discussion in the ongoing effort to improve
NCGMP09 and other models.
Coding
Fields have different styles dependant on their purpose in defining symbology, lables, links to other tables, or links to other features. These styles may be combined to show multiple relationships. Styles were picked such that black & white printouts of these documents will be interpretable.
Core Feature Class
Table title has black text for core elements of the model that will be used on most maps.
Subordinate Feature Class
Table title has gray text for elements of the model that will be infrequently used on most maps.
Attribute Codes:
| Field Example |
Style |
Explanation |
| FaultClass
|
bold, underlined |
used for dual symbology (lines & planes) |
| TypePlane |
bold |
used for symbology |
| SubtypePlane |
bold |
used for symbology |
| TypeLine |
bold |
used for symbology |
| SubtypeLine |
bold |
used for symbology |
| Label |
Green, Small Caps |
used for labeling |
| SourceID |
italic, san-serif font |
basis of relate to another table |
| Related_Feature |
italic, larger serif font |
basis of relate to a feature in another feature class |
| " |
unstyled quote symbol |
fieldname =< 10 characters: no alias necessary |
Database Field Descriptions
Common Attibute Fields
Below are some common fieldnames and their attributes (most will be variants of these attributes: e.g. "LineClass" for fault and fold classes):
- Class
- A generic top-level attribute fieldname with attributes that depend on the context
- Type
- A generic second-level attribute fieldname with attributes that depend on the context
- Subtype
- A generic third-level attribute fieldname with attributes that depend on the context
- Confidence
- certain -- positively identified / known to exist
- probable -- good basis for identification / existence of feature
- uncertain -- weak or uncertain basis for identification / existence of feature
- Exposure
- Nature of the surface exposure of a feature:
- Exposed -- entirely visible at the surface
- Intermittent/obscured -- intermittently exposed at the surface and/or obscured by colluvium
- concealed -- not exposed at the surface because being covered by another mappable unit (e.g. alluvium)
