NMBGMR Draft Geologic Data Model - v. 0.90
KEY

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:

Common Attibute Fields

Below are some common fieldnames and their attributes (most will be variants of these attributes: e.g. CtClass for 'contact class'):

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)

Field Names

This is a comprehensive list of all the field names used in the NMBGMR Geologic Map Data Model:

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