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Sample JGM/R21B-12
NavDat sample number 85301 · PYROCLASTIC-FALL
Sample
| Sample ID | JGM/R21B-12 |
|---|
| Rock name | PYROCLASTIC-FALL |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
Location
| Latitude | 37.2571 |
|---|
| Longitude | -116.347 |
|---|
| State / province | NEVADA |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
| 11.645 |
|
11.655 |
11.635 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
| CE2O3 | 162.104 | | PPM | NAA |
| EU2O3 | 0.5363 | | PPM | NAA |
| HFO2 | 7.022 | | PPM | NAA |
| LA2O3 | 99.884 | | PPM | NAA |
| LU2O3 | 0.3621 | | PPM | NAA |
| SC2O3 | 4.2027 | | PPM | NAA |
| SM2O3 | 7.9591 | | PPM | NAA |
| TB2O3 | | | PPM | NAA |
| THO2 | 41.987 | | PPM | NAA |
| YB2O3 | 2.5029 | | PPM | NAA |
| AL2O3 | 12.21 | | WT% | XRF |
| BAO | | | PPM | XRF |
| BA | | | PPM | XRF |
| CAO | 0.59 | | WT% | XRF |
| CR2O3 | | | PPM | XRF |
| CR | | | PPM | XRF |
| CUO | | | PPM | XRF |
| FE2O3 | 0.9446 | | WT% | XRF |
| K2O | 5.48 | | WT% | XRF |
| LA2O3 | 126.775 | | PPM | XRF |
| MGO | 0.34 | | WT% | XRF |
| MNO | 0.0646 | | WT% | XRF |
| MN | 0.05 | | WT% | XRF |
| NA2O | 2.54 | | WT% | XRF |
| NB2O5 | 26.2216 | | PPM | XRF |
| NIO | | | PPM | XRF |
| NI | | | PPM | XRF |
| P2O5 | 0.03 | | WT% | XRF |
| RB2O | 159.992 | | PPM | XRF |
| SIO2 | 74.52 | | WT% | XRF |
| SRO | 37.701 | | PPM | XRF |
| TIO2 | 0.21 | | WT% | XRF |
| TOTAL | 96.91 | | WT% | XRF |
| Y2O3 | | | PPM | XRF |
| ZNO | 50.6601 | | PPM | XRF |
| ZN | 40.7 | | PPM | XRF |
| ZRO2 | 304.2 | | PPM | XRF |
| ZR | 225.2 | | PPM | XRF |
References
- Anonymous (1991) The Timber Mountain Tuff, southwestern Nevada volcanic field, U.S.A.; evidence against a long-lived, continuously evolving, zoned magma chamber. Eos, Transactions, American Geophysical Union, vol.72, no.17, pp.311, 23 Apr 1991