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Sample 290
NavDat sample number 12518 · TRACHYTE
Sample
| Sample ID | 290 |
|---|
| Rock name | TRACHYTE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Comment | Quartz bostonite probably contamintated w/ preCambrian material |
|---|
Location
| Latitude | 39.775 |
|---|
| Longitude | -105.508 |
|---|
| Location | Banta Hill pluton |
|---|
| State / province | COLORADO |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 63 |
|
58 |
68 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SR87_SR86 | 0.71715 | | | MS-ID |
| RB | 233 | | PPM | MS-ID |
| SR | 239 | | PPM | MS-ID |
| RB87_SR86 | 2.82 | | | MS-ID |
| SR87_SR86_INITIAL | 0.71463 | | | MS-ID |
