Sample M72-62
NavDat sample number 29555 · RHYOLITE
Sample
| Sample ID | M72-62 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Collected by | Supplied by R.A. Bailey |
| Comment | sparsely porphyritic obsidian |
Location
| Latitude | 37.6333 |
|---|---|
| Longitude | -118.833 |
| Location | Hot Creek flow |
| State / province | California |
| Volcanic field | Long Valley Caldera |
| Location comment | Hot Creek lava flow, moat rhyolite sequence |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 2.25 | 1.5 | 3 |
Analyses
Glass
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 75.54 | WT% | UNKNOWN | |
| AL2O3 | 13.24 | WT% | UNKNOWN | |
| FE2O3 | 0.38 | WT% | UNKNOWN | |
| FEO | 0.65 | WT% | UNKNOWN | |
| MGO | 0.1 | WT% | UNKNOWN | |
| CAO | 0.64 | WT% | UNKNOWN | |
| NA2O | 3.99 | WT% | UNKNOWN | |
| K2O | 4.92 | WT% | UNKNOWN | |
| H2O_PLUS | 0.26 | WT% | UNKNOWN | |
| TIO2 | 0.11 | WT% | UNKNOWN | |
| P2O5 | 0.02 | WT% | UNKNOWN | |
| MNO | 0.04 | WT% | UNKNOWN | |
| CO | 0.4 | PPM | UNKNOWN | |
| CR | 2.5 | PPM | UNKNOWN | |
| CS | 3.5 | PPM | UNKNOWN | |
| HF | 4.2 | PPM | UNKNOWN | |
| RB | 123 | PPM | UNKNOWN | |
| SB | 1 | PPM | UNKNOWN | |
| SC | 1.07 | PPM | UNKNOWN | |
| TA | 1.66 | PPM | UNKNOWN | |
| TH | 14.2 | PPM | UNKNOWN | |
| U | 4.1 | PPM | UNKNOWN | |
| LA | 42 | PPM | UNKNOWN | |
| CE | 65 | PPM | UNKNOWN | |
| ND | 22 | PPM | UNKNOWN | |
| SM | 3.2 | PPM | UNKNOWN | |
| EU | 0.25 | PPM | UNKNOWN | |
| GD | 6.6 | PPM | UNKNOWN | |
| TB | 0.38 | PPM | UNKNOWN | |
| TM | 0.28 | PPM | UNKNOWN | |
| YB | 1.6 | PPM | UNKNOWN | |
| LU | 0.23 | PPM | UNKNOWN |