Method for identifying hydrothermal alteration areas of the earth
US4581531A · kind A · utility
7Cited by
1References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 16, 1983 |
| Grant date | Apr 8, 1986 |
| Priority date | — |
| Expiry date | Nov 16, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An aerial natural gamma radiation survey is conducted over an exploration region. A change in the measured T1-208/K-40 ratio in the exploration region in contrast to a region known not to be hydrothermally altered identifies the exploration region as a hydrothermal alteration. A surface natural gamma radiation survey is conducted over the hydrothermally altered exploration region. A change in the T1-208/K-40 ratio at specific sites within the exploration region indicates the location of alteration products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.