Statistical Analysis Of Assay Data From The Round Mountain Silver Prospect Custer County Colo
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| Author | : George S. Koch |
| Publisher | : |
| Total Pages | : 40 |
| Release | : 1971 |
| Genre | : Silver |
| ISBN | : |
A statistical analysis of silver assay data from rotary-drill-hole cuttings and diamond-drill-hole cores from the Round Mountain prospect, Custer County, Colo., demonstrates several useful methods for estimating grades and tonnages of ore from the drilling of wide-spaced holes in disseminated deposits of precious metals. A new method of ore appraisal is introduced which estimates grade and tonnage of ore by calculating convex hulls (smallest convex polygons) for sample points with assay values above specified cutoff grades.
| Author | : |
| Publisher | : |
| Total Pages | : 660 |
| Release | : 1971 |
| Genre | : Mineral industries |
| ISBN | : |
| Author | : United States. Bureau of Mines |
| Publisher | : |
| Total Pages | : 578 |
| Release | : 1970 |
| Genre | : Mineral industries |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 1386 |
| Release | : |
| Genre | : Government publications |
| ISBN | : |
| Author | : T. O. Llewellyn |
| Publisher | : |
| Total Pages | : 678 |
| Release | : 1971 |
| Genre | : Cyanite |
| ISBN | : |
| Author | : United States. Superintendent of Documents |
| Publisher | : |
| Total Pages | : 1290 |
| Release | : 1971 |
| Genre | : Government publications |
| ISBN | : |
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
| Author | : United States. Superintendent of Documents |
| Publisher | : |
| Total Pages | : 1466 |
| Release | : 1976 |
| Genre | : United States |
| ISBN | : |
| Author | : R. L. Wise |
| Publisher | : |
| Total Pages | : 684 |
| Release | : 1971 |
| Genre | : Oil-shales |
| ISBN | : |
Heat content studies were conducted on burned shale, spent shale, and three grades of raw oil shale from the Green River Formation. Corrections were made for product enthalpies. The results were compared with previous work, indicating good agreement below retorting temperatures, but some differences at retorting temperatures. A general equatoin was developed relating heat content to oil-shale grade and temperature.
| Author | : |
| Publisher | : |
| Total Pages | : 948 |
| Release | : 1971 |
| Genre | : Research |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 512 |
| Release | : 1976 |
| Genre | : Geology |
| ISBN | : |
