Geophysical exploration
Geophysical exploration means exploration that utilizes geophysical techniques (e.g., gravity, magnetic, electromagnetic, or seismic) to produce data and information on oil, gas, and sulphur resources in support of possible exploration and development activities. The term does not include geophysical scientific research.
Source
30 CFR § 551.1
Scoping language
Terms used in this part have the following meaning: