← Search
Sample BS-1A
NavDat sample number 5006 · BASALT
Sample
| Sample ID | BS-1A |
|---|
| Rock name | BASALT |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | MAFIC |
|---|
| Material | IGNEOUS |
|---|
| Collected by | M.L. Silberman, U.S. Geological Survey |
|---|
| Comment | This specimen was treated with HF and HNO3 see sample 6-12-75A, No. 35. Argon was analyzed twice, and both analyses show great improvement in radiogenic argon content over the untreated sample. The difference in radiogenic argon content between the two argon analyses probably resulted from variations in atmospheric blanks in the extraction lines. |
|---|
Location
| Latitude | 40.3467 |
|---|
| Longitude | -117.297 |
|---|
| Location | Lander County |
|---|
| State / province | Nevada |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.29 |
|
1.26 |
1.32 |
|
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.
