subsurface exploration
http://inspire.ec.europa.eu/codelist/ExplorationActivityTypeValue/subsurfaceExploration
english
eng
removal of overburden, trenching, channel sampling
Shallow ditch from which a sample can be taken and a geological observation made.
CodeListValue
auger drilling
Drilling of a cylindrical hole with an ad hoc tool in order to collect a rock sample, or to carry out a physical measurement or a geological observation. By extension, designates also the drill hole, whatever the latter's purpose. In this case drilling is performed by means of an auger, i.e. with a helical screw which is driven into the ground with rotation.
CodeListValue
percussion drilling
Drilling of a cylindrical hole with an ad hoc tool in order to collect a rock sample, or to carry out a physical measurement or a geological observation. By extension, designates also the drill hole, whatever the latter's purpose. In this case, drilling is performed with a percussion tool.
CodeListValue
core drilling
Drilling in order to collect intact rock sample cores, or to carry out a physical measurement or a geological observation. Can confirm results from obtained from percussion drilling.
CodeListValue
CodeListValue