revised: 05-Feb-2015

NMBGMR Draft Geologic Data Model - v. 1.0.4
SYMBOLOGY: Paleocurrent 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 paleocurrent directions 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
paleocurrent-fluvial map symbol Fabric_point
  • RockType=[variable]
  • LineType="fluvial paleocurrent"
  • LnSubType="unspecified"
  • Trend="70"
 If these data include trend and plunge and bedding data in the same record, the true paleocurrent vector should be calculated.
paleocurrent-fluvial-clast imbrication map symbol Fabric_point
  • RockType=[variable]
  • LineType="fluvial paleocurrent"
  • LnSubType="imbrication"
  • Trend="70"
  
paleocurrent-fluvial- cross beds map symbol Fabric_point
  • RockType=[variable]
  • LineType="fluvial paleocurrent"
  • LnSubType="cross beds"
  • Trend="70"
  
paleocurrent-fluvial- flute marks map symbol Fabric_point
  • RockType=[variable]
  • LineType="fluvial paleocurrent"
  • LnSubType="flute casts "
  • Trend="70"
  
paleocurrent-fluvial- flute marks map symbol Fabric_point
  • RockType=[variable]
  • LineType="eolian paleocurrent"
  • LnSubType="cross beds"
  • Trend="70"