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Sample 6-12-75A
NavDat sample number 5001 · BASALT
Sample
| Sample ID | 6-12-75A |
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| Rock name | BASALT |
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| Rock type | VOLCANIC |
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| Composition | MAFIC |
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| Material | IGNEOUS |
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| Collected by | R.E. Wallace, U.S. Geological Survey |
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| Comment | Same hand specimen as 6-12-75, but prepared using an HF and HNO3 acid treatment. The sample was used to test the effect of the procedure on reducing radiogenic argon content and on the age of the sample. The ages of both samples are identical. |
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Location
| Latitude | 40.1667 |
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| Longitude | -118.093 |
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| Location | Pershing County |
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| State / province | Nevada |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
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| 11.1 |
|
10.8 |
11.4 |
|
M.L. Silberman, U.S. Geological Survey |
Analyses
No chemical analyses are stored for this sample.
References
- Morton, Janet L. and Silberman, Miles L. of the U.S. Geological Survey, Menlo Park; Bonham, H.F. and Garside, Larry J. of the Nevada Bureau of Mines and Geology, Reno; and Noble, Donald C. of the Michigan Technological University, Houghton (1977) K-AR AGES OF VOLCANIC ROCKS, PLUTONIC ROCKS, AND ORE DEPOSITS IN NEVADA AND EASTERN CALIFORNIA - DETERMINATIONS RUN UNDER THE USGS-NBMG COOPERATIVE PROGRAM.
