revised: 05-Feb-2015

NMBGMR Draft Geologic Data Model - v. 1.0.4
POLYGONS: Cartographic

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.

Contents:

Feature Class: Attribution_poly

This feature class represents general areas of mapping data sources, both for new mapping and for compilation from previous work. This will allow construction of an index map showing data sources. Polygons should be allowed to overlap for this feature class. This might be accomplished using transparent fills or hollow patterns. Boundaries for these polygons are generic and need not have any particular symbolgy. This feature class is intended in the most general way to give the user an idea of what data sources are without resorting to feature level metadata (included elsewhere in the data model).

Field Name Field Alias Length
(text fields)		 Field Type Field Value Default Allow Nulls? Attributes / Examples Description / Notes
SourceID " 50 String variable [null] TRUE unknown; unspecified; Smith, 2006b, This Study, [variable] source of map data; related to bibliographic detail

Feature Class: MapExtent_poly

This feature class represents the map extent as extracted from a quadrangle grid. It is topologically related to Map_Boundary lines that were created from this polygon.

Field Name Field Alias Length
(text fields)		 Field Type Field Value Default Allow Nulls? Attributes / Examples Description / Notes
Name MapName 128 String   [null] TRUE Ladron Peak  
MRC MapReferenceCode 8 String   [null] TRUE 32105-H8 USGS Map Reference Code
UTM_zone "   Short Integer   [null] TRUE 12 or 13
(in NM)		 UTM zones
UTM_row " 1 String   [null] TRUE S or R
(in NM)		 UTM zones