Stages in the work of exploration:
1. General Investigations
a. Study Library
*) State of the regional geology
*) State of tectonic
*) State setting paleogeography
*) Limits the area of work
b. Checking field
*) Search outcrop of rock and coal
*) Taking the example of rock and coal
2. Preliminary investigation
a. Mapping regions
*) Mapping the topography
*) Aerial mapping
b. Interpretation of the geological situation
*) Stratigraphy of coal position
*) The structure of geology
c. Drilling
*) Correlation
*) The results of the calculation of reserves
*) Spare geometry
*) Estimated quality
3. Investigation Details
a. Drilling
*) Geometry more closely coal deposits and reserve calculations
*) Anomaly geology (faults)
*) The quality of coal (and the nature of the laboratory analysis of coal)
b. Geophysics
*) Stratigraphy of coal position more closely
*) The structure of geology
*) The form of coal deposits
c. Determination of mining method
4. Commercial exploration program