NMBGMR Draft Geologic Data Model - v. 1.0.3
POLYGONS: Metamorphic Facies

revised: 29-Feb-2012

Contents:

Feature Class: Metamorphic_poly

This feature class represents areas of similar metamorphic grade and mineral assemblages and is built from Isograd_line.

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.
MmID Metamorphic_ID 50 String variable [null] TRUE undefined, [variable, e.g. Garnet, Biotite, Andalusite-Sillimanite]  
Label " 50 String variable [null] TRUE undefined, [variable, e.g. Garnet, Biotite, Andalusite-Sillimanite?] includes queries
MMFacies " 50 String variable [null] TRUE unspecified, Greenschist, Amphibolite, Granulite  
Assemblage " 128 String variable [null] TRUE Bt-staur-gar  
Confidence " 16 String CVD [null] TRUE unspecified, certain, probable, uncertain

confidence regarding feature level ID
General_ID Generalized_ID 50 String variable [null] TRUE Kyanite How to Generalize this polygon.
SourceID " 128 String variable [null] TRUE 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)  

Feature Class: Metamorphic_pt

This point feature stores attributes about metamorphic grade and mineral assemblages. It could be used with Isograd_line to build polgyons in Metamorphic_poly if the point attributes were consistent over an area bounded by the Isograd_lines.

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.
MmID Metamorphic_ID 50 String variable [null] TRUE undefined, [variable, e.g. Garnet, Biotite, Andalusite-Sillimanite]  
Label " 50 String variable [null] TRUE undefined, [variable, e.g. Garnet, Biotite, Andalusite-Sillimanite?] includes queries
MMFacies " 50 String variable [null] TRUE unspecified, Greenschist, Amphibolite, Granulite  
Assemblage " 128 String variable [null] TRUE Bt-staur-gar  
Confidence " 16 String CVD [null] TRUE unspecified, certain, probable, uncertain

confidence regarding feature level ID
General_ID Generalized_ID 50 String variable [null] TRUE Kyanite How to Generalize this polygon.
SourceID " 128 String variable [null] TRUE 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)