Sample 28
NavDat sample number 36806 · MINETTE
Sample
| Sample ID | 28 |
|---|---|
| Rock name | MINETTE |
| Rock type | VOLCANIC |
| Composition | EXOTIC |
| Material | IGNEOUS |
Location
| Latitude | 37.657 |
|---|---|
| Longitude | -102.539 |
| Location | Two Buttes |
| State / province | Colorado |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 36.8 | 36.4 | 37.2 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 55.1 | WT% | ICPAES | |
| MGO | 5.96 | WT% | ICPAES | |
| TIO2 | 0.94 | WT% | ICPAES | |
| AL2O3 | 14 | WT% | ICPAES | |
| FE2O3 | 7.59 | WT% | ICPAES | |
| MNO | 0.13 | WT% | ICPAES | |
| CAO | 5.69 | WT% | ICPAES | |
| NA2O | 3.34 | WT% | ICPAES | |
| K2O | 5.94 | WT% | ICPAES | |
| P2O5 | 0.4 | WT% | ICPAES | |
| CO2 | 0.42 | WT% | UNKNOWN | |
| H2O_PLUS | 1.19 | WT% | PENFIELD | |
| H2O_MINUS | 0.25 | WT% | PENFIELD | |
| RB | 146 | PPM | XRF | |
| SR | 413 | PPM | XRF | |
| SM | 12 | PPM | INAA | |
| ND | 63.1 | PPM | INAA | |
| TH | 14.5 | PPM | INAA | |
| NI | 113 | PPM | XRF | |
| CR | 232 | PPM | XRF | |
| Y | 36 | PPM | XRF | |
| ZR | 297 | PPM | XRF | |
| NB | 22.7 | PPM | XRF | |
| BA | 1181 | PPM | XRF | |
| LA | 71.2 | PPM | INAA | |
| CE | 141 | PPM | INAA | |
| EU | 2.93 | PPM | INAA | |
| TB | 1.22 | PPM | INAA | |
| YB | 2.15 | PPM | INAA | |
| LU | 0.46 | PPM | INAA | |
| HF | 8.2 | PPM | INAA | |
| TA | 1.4 | PPM | INAA |
References
- Davis, Linda L; Smith, Douglas; McDowell, Fred W; Walker, Nicholas W; Borg, Lars E (1996) Eocene potassic magmatism at Two Buttes, Colorado, with implications for Cenozoic tectonics and magma generation in the Western United States. Geological Society of America Bulletin. 108; 12, Pages 1567-1579. 1996. . doi:10.1130/0016-7606(1996)108<1567:EPMATB>2.3.CO;2