Sample AZ28
NavDat sample number 130430 · ANDESITE
Sample
| Sample ID | AZ28 |
|---|---|
| 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 | 56.69 | WT% | UNKNOWN | |
| TIO2 | 0.76 | WT% | UNKNOWN | |
| AL2O3 | 17.2 | WT% | UNKNOWN | |
| FEOT | 5.88 | WT% | UNKNOWN | |
| MNO | 0.13 | WT% | UNKNOWN | |
| MGO | 6.19 | WT% | UNKNOWN | |
| CAO | 6.96 | WT% | UNKNOWN | |
| NA2O | 3.83 | WT% | UNKNOWN | |
| K2O | 2.01 | WT% | UNKNOWN | |
| P2O5 | 0.36 | WT% | UNKNOWN | |
| LOI | 1.11 | WT% | UNKNOWN | |
| NI | 121 | PPM | UNKNOWN | |
| CR | 231 | PPM | UNKNOWN | |
| SR | 1116 | PPM | UNKNOWN | |
| RB | 35 | PPM | UNKNOWN | |
| BA | 1030 | PPM | UNKNOWN | |
| NB | 7 | PPM | UNKNOWN | |
| ZR | 188 | PPM | UNKNOWN | |
| Y | 16 | PPM | UNKNOWN | |
| LA | 53 | PPM | UNKNOWN | |
| CE | 95 | PPM | UNKNOWN | |
| ND | 39 | PPM | UNKNOWN | |
| SR87_SR86 | 0.70664 | TIMS | ||
| ND143_ND144 | 0.51225 | TIMS | ||
| PB206_PB204 | 18.694 | TIMS | ||
| PB207_PB204 | 15.576 | TIMS | ||
| PB208_PB204 | 38.143 | 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