Defining a Drill Grid

  • Friedrich-Wilhelm Wellmer


During exploration, one usually drills targets that are defined by geochemical or geophysical anomalies, or by a geological concept, although in mineral exploration it is more usual to drill geochemical and geophysical anomalies. However, in exceptional circumstances, a blind target that has been defined by a geological concept will be tested by drilling.


Anisotropy Drilling Trench Spodumene 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • Friedrich-Wilhelm Wellmer
    • 1
  1. 1.Bundesanstalten für Geowissenschaften und Rohstoffe (BGR)HannoverGermany

Personalised recommendations