Evaluation of Potash Grade with Gamma-ray Logs
Open-File Report
2007-1292
By: Philip H. Nelson
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Abstract
Potassium is an emitter of gamma-ray radiation, consequently deposits of potash can be detected and evaluated using gamma-ray logs. A method originally designed to evaluate uranium deposits in boreholes can also be applied to potash deposits. The method equates the depth-integral of a gamma-ray log to the grade-thickness product of a potash-bearing bed or series of beds. The average grade of a bed is then determined by dividing by the overall bed thickness, which can also be obtained from the gamma-ray log. The method was tested using gamma-ray logs and potash assays from boreholes near Carlsbad, New Mexico.
Suggested Citation
Nelson, P.H., 2007, Evaluation of Potash Grade with Gamma-ray Logs (Version 1.0): U.S. Geological Survey Open-File Report 2007-1292, 14 p., https://doi.org/10.3133/ofr20071292.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Evaluation of Potash Grade with Gamma-ray Logs |
| Series title | Open-File Report |
| Series number | 2007-1292 |
| DOI | 10.3133/ofr20071292 |
| Edition | Version 1.0 |
| Year Published | 2007 |
| Language | ENGLISH |
| Publisher | Geological Survey (U.S.) |
| Contributing office(s) | U.S. Geological Survey |
| Description | 14 p. |
| Online Only (Y/N) | Y |