Borehole

A special kind of Mapped Feature whose shape is 1-D (a curve)

A borehole is the generalized term for any narrow shaft drilled in the ground, either vertically or horizontally.

A Borehole Collar is a feature corresponding to the start point of a borehole which are often plotted on a map. If a text descripiton of the location is available, it should be placed in the gml:description for that feature. If no GM_Point is available, an OGC nil value (eg; http://www.opengis.net/def/nil/OGC/0/unknown) should be used. Implementers delivering 3-D collar locations should provide and elevation to improve interoperability.

Borehole specific index (or metadata) information

This class is an indicative placeholder only for a vocabulary of terms describing the location of the start of a borehole. Users are encouraged to use a vocabulary of terms managed by the CGI vocabularies working group.

This class is an indicative placeholder only for a vocabulary of terms describing the borehole drilling method. Users are encouraged to use a vocabulary of terms managed by the CGI vocabularies working group.

This class is an indicative placeholder only for a vocabulary of terms describing the general orientation of a borehole. Users are encouraged to use a vocabulary of terms managed by the CGI vocabularies working group.