Support inclined boreholes

[JoostGevaert]

GEF

GEF files support inclined boreholes, though most of them are vertical.

Relavent columns

• depth
• penetrationLength
• inclinationResultant
• inclinationNS
• inclinationEW

AGS

AGS4 HORN group

Survey CSV

Survey CSV is an informal convention for describing borehole data. The data of collars, survey (the borehole section azimuth and dip), and samples are separate CSV files and linked by LocationID and/or Borehole ID. The locations are in Easting, Northing, and Elevation.

Survey data describe the orientation, i.e. azimuth and inclination, i.e. dip at different depths along the borehole. As an example:

"HoleID","Depth_m","Dip","Azimuth"
"BX23-001","0.0","-49.76","36.07"
"BX23-001","1.0","-49.58","36.168"
"BX23-001","2.0","-49.52","36.168"
"BX23-001","3.0","-49.53","36.094"
"BX23-001","4.0","-49.58","36.055"
"BX23-001","5.0","-49.57","35.931"
"BX23-001","6.0","-49.59","35.991"
"BX23-001","7.0","-49.57","35.983"
"BX23-001","8.0","-49.56","36.016"
"BX23-001","9.0","-49.55","36.025"
"BX23-001","10.0","-49.53","36.126"
"BX23-001","11.0","-49.51","36.09"
"BX23-001","12.0","-49.48","36.14"
"BX23-001","13.0","-49.47","36.158"

TODO add MacPass mining CSV data example here.