← Search
Sample MM-90
NavDat sample number 64341 · RHYOLITE
Sample
| Sample ID | MM-90 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | altered rhyolite to quartz-latite stock |
|---|
Location
| Latitude | 39.142 |
|---|
| Longitude | -106.5 |
|---|
| Location | Halfmoon Creek stock; Mount Massive Wilderness |
|---|
| State / province | COLORADO |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 54.4 |
|
52.4 |
56.4 |
|
|
Analyses
No chemical analyses are stored for this sample.
References
- Van Loenen, Richard E; Lee, G K; Campbell, D L; Thompson, John R (1989) Mineral resource potential of Mount Massive Wilderness, Lake County, Colorado. U. S. Geological Survey Bulletin, Report: B 1636, 18 pp., 2 sheets, 1989
