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Sample 8M88A
NavDat sample number 14630 · ANDESITE
Sample
| Sample ID | 8M88A |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Comment | Phyric bitric andesite |
|---|
Location
| Latitude | 46.2518 |
|---|
| Longitude | -122.049 |
|---|
| Location | Mt. St. Helens |
|---|
| State / province | Washington |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 9 |
|
8 |
10 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 57.6 | | WT% | AAS |
| AL2O3 | 15.8 | | WT% | AAS |
| FE2O3 | 3.2 | | WT% | AAS |
| FEO | 5.6 | | WT% | AAS |
| MGO | 2.1 | | WT% | AAS |
| CAO | 5.9 | | WT% | AAS |
| NA2O | 4 | | WT% | AAS |
| K2O | 1.1 | | WT% | AAS |
| H2O | 1.3 | | WT% | AAS |
| H2O_MINUS | 0.81 | | WT% | AAS |
| TIO2 | 1.4 | | WT% | AAS |
| P2O5 | 0.36 | | WT% | AAS |
| MNO | 0.15 | | WT% | AAS |
| TOTAL | 99.34 | | WT% | UNKNOWN |
