revised: 05-Feb-2015

NMBGMR Draft Geologic Data Model - v. 1.0.4
SYMBOLOGY: Igneous Fabric Point Features

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.

This document indicates how igneous fabrics recorded at a point portrayed on a geologic map should be coded in the data model. See the NMBGMR Symbol set (3.7 Mb PDF) for details on how our standard symbology is constructed).

Description Symbol Feature Classes & Attributes Comment
flow_foliation-horizontal map symbol Fabric_point
  • RockType=[volcanic or intrusive]
  • PlaneType="flow banding"
  • Inclnation="horizontal"
  
flow_foliation-inclined map symbol Fabric_point
  • RockType=[volcanic or intrusive]
  • PlaneType="flow banding"
  • Inclnation="inclined"
  • DipDir="310"
  • Dip="40"
  
flow_foliation-vertical map symbol Fabric_point
  • RockType=[volcanic or intrusive]
  • PlaneType="flow banding"
  • Inclnation="vertical"
  • DipDir="70"
  • Dip="90"
 Error in dip-dir value on image!
magmatic_foliation-inclined map symbol Fabric_point
  • RockType="intrusive"
  • PlaneType="magmatic foliation"
  • PlnSubType="aligned phenocrysts "
  • Inclnation="inclined"
  • DipDir="330"
  • Dip="72"
  
bedding-crenulated-inclined map symbol Fabric_point
  • RockType="intrusive"
  • PlaneType="magmatic foliation"
  • PlnSubType="aligned mafic enclaves"
  • Inclnation="inclined"
  • DipDir="340"
  • Dip="56"
  
minor vein-inclined map symbol Fabric_point
  • RockType=[variable]
  • PlaneType="vein"
  • PlnSubType=[variable, could specify vein material here]
  • Inclnation="inclined"
  • DipDir="302"
  • Dip="50"
  
minor dike-inclined map symbol Fabric_point
  • RockType=[variable]
  • PlaneType="dike"
  • PlnSubType=[variable, could specify dike rock type here]
  • Inclnation="inclined"
  • DipDir="300"
  • Dip="34"