Sample AZ31
NavDat sample number 130418 · ANDESITE
Sample
| Sample ID | AZ31 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | L-GROUP (DEFINED BY AUTHORS) |
Location
| Latitude | 33.0625 |
|---|---|
| Longitude | -113.038 |
| State / province | ARIZONA |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 17 | 14 | 20 |
Analyses
WHOLE ROCK
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 57.87 | WT% | UNKNOWN | |
| TIO2 | 0.81 | WT% | UNKNOWN | |
| AL2O3 | 16.44 | WT% | UNKNOWN | |
| FEOT | 5.65 | WT% | UNKNOWN | |
| MNO | 0.11 | WT% | UNKNOWN | |
| MGO | 6.48 | WT% | UNKNOWN | |
| CAO | 6.24 | WT% | UNKNOWN | |
| NA2O | 4.14 | WT% | UNKNOWN | |
| K2O | 2.01 | WT% | UNKNOWN | |
| P2O5 | 0.24 | WT% | UNKNOWN | |
| LOI | 1 | WT% | UNKNOWN | |
| NI | 183 | PPM | UNKNOWN | |
| CR | 217 | PPM | UNKNOWN | |
| SR | 686 | PPM | UNKNOWN | |
| RB | 31 | PPM | UNKNOWN | |
| BA | 911 | PPM | UNKNOWN | |
| NB | 7 | PPM | UNKNOWN | |
| ZR | 159 | PPM | UNKNOWN | |
| Y | 16 | PPM | UNKNOWN | |
| LA | 30 | PPM | UNKNOWN | |
| CE | 57 | PPM | UNKNOWN | |
| ND | 24 | PPM | UNKNOWN | |
| SR87_SR86 | 0.70734 | TIMS | ||
| ND143_ND144 | 0.512281 | TIMS | ||
| PB206_PB204 | 18.69 | TIMS | ||
| PB207_PB204 | 15.585 | TIMS | ||
| PB208_PB204 | 38.431 | TIMS |
References
- Lopez, Robert; Cameron, K L (1997) High-Mg andesites from the Gila Bend Mountains, southwestern Arizona; evidence for hydrous melting of lithosphere during Miocene extension. Geological Society of America Bulletin, vol.109, no.7, pp.900-914, Jul 1997 doi:10.1130/0016-7606(1997)109<0900:HMAFTG>2.3.CO;2