Sample AZ68
NavDat sample number 130443 · ANDESITE
Sample
| Sample ID | AZ68 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | M-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 | 54.45 | WT% | UNKNOWN | |
| TIO2 | 1.01 | WT% | UNKNOWN | |
| AL2O3 | 16.08 | WT% | UNKNOWN | |
| FEOT | 6.62 | WT% | UNKNOWN | |
| MNO | 0.13 | WT% | UNKNOWN | |
| MGO | 7.77 | WT% | UNKNOWN | |
| CAO | 7.85 | WT% | UNKNOWN | |
| NA2O | 3.69 | WT% | UNKNOWN | |
| K2O | 1.99 | WT% | UNKNOWN | |
| P2O5 | 0.4 | WT% | UNKNOWN | |
| LOI | 1.02 | WT% | UNKNOWN | |
| NI | 156 | PPM | UNKNOWN | |
| CR | 288 | PPM | UNKNOWN | |
| SR | 934 | PPM | UNKNOWN | |
| RB | 29 | PPM | UNKNOWN | |
| BA | 1001 | PPM | UNKNOWN | |
| NB | 10 | PPM | UNKNOWN | |
| ZR | 182 | PPM | UNKNOWN | |
| Y | 18 | PPM | UNKNOWN | |
| LA | 55 | PPM | UNKNOWN | |
| CE | 101 | PPM | UNKNOWN | |
| ND | 45 | PPM | UNKNOWN | |
| SR87_SR86 | 0.70639 | TIMS | ||
| ND143_ND144 | 0.512288 | 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