revised: 05-Feb-2015

NMBGMR Draft Geologic Data Model - v. 1.0.4
POLYGONS: Geomorphic Surfaces

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.

Feature Class: Surface_poly

This feature class represents geomorphic surfaces and is built from Surface_Contacts, contacts, and faults.

Field Name Field Alias Length
(text fields)		 Field Type Field Value Default Allow Nulls? Attributes / Examples Description / Notes
FGDC_code " 16 String variable [null] TRUE 30.3.12 FGDC geologic symbol reference number.
SurfaceID " 16 String variable [null] TRUE Qtrp3 related to surface detail
Label " 16 String variable [null] TRUE Qtrp3? includes queries
Overlies " 16 String variable [null] TRUE [null] unknown, IPm unit surface overlies
SurfMod SurfaceModification 50 String variable [null] TRUE unspecified, dissected, undissected Degree of erosional modification of surface
Confidence " 16 String CVD [null] TRUE unspecified, certain, probable, uncertain

confidence regarding feature level ID
SrfIDbasis SurfaceIDbasis 50 String variable [null] TRUE unspecified, discordance, soil, position, morphology  
General_ID Generalized_ID 16 String variable [null] TRUE Qsf How to Generalize this polygon.
SourceID " 128 String variable [null]   unknown; unspecified; Smith, 2006b [variable] Feature level metadata (who mapped this); related to bibliographic detail
Descriptn Description 255 String variable [null] TRUE Description of area of polygon (feature level)