Exploration work type	File name	Format
Airborne Exploration Surveys
Aeromagnetics
Radiometrics
Electromagnetics
Gravity
Digital terrain modelling
Ground Exploration Surveys
Office Studies
Literature search
Database compilation
Computer modelling
Reprocessing of data
General Research
Report Preparation
Remote Sensing
Aerial photography
LANDSAT
SPOT
MSS
Radar
Geological Mapping
Regional
Reconnaissance
Prospect
Underground
Costean
Ground Geophysics
Radiometrics
Magnetics
Gravity
Digital terrain modelling
Electromagnetics
SP/AP/EP
IP
AMT
Resistivity
Complex resistivity
Seismic reflection
Seismic refraction
Well logging
Geophysical interpretation
Geochemical Surveys	GREAT_NTSG4_ROCK2017A.txt	NTSG4
Drill sample
Stream sediment
Soil
Rock chip
Laterite
Water
Biogeochemistry
Isotope
Whole Rock
Mineral analysis
Drilling
Diamond
Reverse Circulation
Rotary air blast
Air-core
Auger
Groundwater Drilling
All Drilling
	GREAT_NTSL4_COLL2017A.txt	NTSL4
	GREAT_NTDL4_GEO2017A.txt	NTDL4
	GREAT_NTDS4_SURV2017A.txt	NTDS4
	GREAT_NTDG4_ASS2017A.txt	NTDG4