| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Haanel depth rule | Mining | A rule of thumb for estimating the depth of a magnetic body, which is valid if the body may be regarded as magnetically equivalent to a single pole. The depth of such a pole is equal to the horizontal distance from the point of maximum vertical magnetic intensity to the points where the intensity is one-third of the maximum value. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
