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Sample 95-12c
NavDat sample number 93508 · ANDESITE
Sample
| Sample ID | 95-12c |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Collected by | Grove and others |
|---|
Location
| Latitude | 41.4262 |
|---|
| Longitude | -122.223 |
|---|
| Location | Shastina cone |
|---|
| State / province | California |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.01 |
|
0.0094 |
0.01 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 62.8 | | WT% | XRF |
| TIO2 | 0.59 | | WT% | XRF |
| AL2O3 | 16.5 | | WT% | XRF |
| FE2O3 | 4.42 | | WT% | XRF |
| MNO | 0.07 | | WT% | XRF |
| MGO | 3.46 | | WT% | XRF |
| CAO | 5.88 | | WT% | XRF |
| NA2O | 3.95 | | WT% | XRF |
| K2O | 1.17 | | WT% | XRF |
| P2O5 | 0.25 | | WT% | XRF |
| LOI | 0.74 | | WT% | XRF |
References
- Grove, Timothy L; Baker, Michael B; Price, Richard C; Parman, StephenW; Elkins-Tanton, Linda T; Chatterjee, Nilanjan; Muentener, Othmar (2005) Magnesian andesite and dacite lavas from Mt. Shasta, NorthernCalifornia; products of fractional crystallization of H (sub 2) O-richmantle melts. Contributions to Mineralogy and Petrology, vol.148, no.5, pp.542-565,Jan 2005 doi:10.1007/s00410-004-0619-6
