| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Exploration drilling | Energy | Drilling done in search of new mineral deposits, on extensions of known ore deposits, or at the location of a discovery up to the time when the company decides that sufficient ore reserves are present to justify commercial exploration. Assessment drilling is reported as exploration drilling. (references) | |
| Exploration drilling | Mining | Drilling boreholes by the rotary, diamond, percussive, or any other method of drilling for geologic information or in search of a mineral deposit. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
