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Sample 78L-180
NavDat sample number 12487 · ANDESITE
Sample
| Sample ID | 78L-180 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 36.8731 |
|---|
| Longitude | -105.409 |
|---|
| Location | along road to Lemnos creek |
|---|
| State / province | New Mexico |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 20.5 |
|
19.5 |
21.5 |
|
|
Analyses
Mineral
| Item | Value | Std. dev. | Unit | Method |
|---|
| K2O | 0.7 | | WT% | K-AR |
| K2O | 0.74 | | WT% | K-AR |
References
- Lipman, Peter W; Mehnert, Harald H; Naeser, Charles W (1986) Evolution of the Latir volcanic field, northern New Mexico, and its relation to the Rio Grande Rift, as indicated by potassium-argon and fission track dating. Journal of Geophysical Research, vol.91, no.B6, pp.6329-6345, 10 May 1986
