Sample DM-99-61
NavDat sample number 44080 · ANDESITE
Sample
| Sample ID | DM-99-61 |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Hornblende porphyry, next to Mount Mestas |
Location
| Latitude | 37.5725 |
|---|---|
| Longitude | -105.119 |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 33.56 | 33.44 | 33.68 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 53.2 | WT% | WDXRF | |
| AL2O3 | 16.2 | WT% | WDXRF | |
| FE2O3 | 8.91 | WT% | WDXRF | |
| MGO | 3.73 | WT% | WDXRF | |
| CAO | 5.83 | WT% | WDXRF | |
| NA2O | 4.65 | WT% | WDXRF | |
| K2O | 3.09 | WT% | WDXRF | |
| TIO2 | 1.07 | WT% | WDXRF | |
| P2O5 | 0.58 | WT% | WDXRF | |
| MNO | 0.17 | WT% | WDXRF | |
| RB | 69.9 | PPM | INAA | |
| SR | 810 | PPM | INAA | |
| CS | 1.36 | PPM | INAA | |
| BA | 1400 | PPM | INAA | |
| TH | 4.77 | PPM | INAA | |
| U | 1.95 | PPM | INAA | |
| ZR | 216 | PPM | INAA | |
| HF | 5 | PPM | INAA | |
| TA | 1.22 | PPM | INAA | |
| W | 0.19 | PPM | INAA | |
| SC | 19.3 | PPM | INAA | |
| CR | 18.9 | PPM | INAA | |
| CO | 23.5 | PPM | INAA | |
| NI | 20.5 | PPM | INAA | |
| ZN | 88.8 | PPM | INAA | |
| ARSENIC | 0.58 | PPM | INAA | |
| SB | 0.1 | PPM | INAA | |
| AU | 0.1 | PPB | INAA | |
| LA | 43.21 | PPM | INAA | |
| CE | 92.1 | PPM | INAA | |
| ND | 46.3 | PPM | INAA | |
| SM | 8.69 | PPM | INAA | |
| EU | 2.23 | PPM | INAA | |
| GD | 7.03 | PPM | INAA | |
| TB | 0.98 | PPM | INAA | |
| HO | 1.15 | PPM | INAA | |
| TM | 0.47 | PPM | INAA | |
| YB | 3.1 | PPM | INAA | |
| LU | 0.46 | PPM | INAA | |
| SR87_SR86 | 0.705652 | TIMS | ||
| ND143_ND144 | 0.512221 | TIMS |