Borehole Drilling Method

gravity core

http://resource.geosciml.org/classifier/cgi/boreholedrillingmethod/gravity_core

notation 4.2.3 more like this
definition Used only where short cores are required. Core barrel is gravity forced into poorly consolidated material, producing near surface high quality core. more like this
source This vocabulary more like this
type
Resource
Concept
broader direct push
narrower gravity core
in scheme boreholedrillingmethod
is primary topic of gravity core