Sample: Spurr_1900_2
| Sample ID: | Spurr_1900_2 [1] |
| Station ID: | Spurr_1900_2 |
| AT Num: | |
| Volcano: | |
| Possible source: | |
| Eruption: | |
| Collector: | Spurr, J. E. |
| Date sampled: | 1898-01-01 |
| Sample type 1: | Lava |
| Color: | |
| Final unit: | |
| Text Description: | Phase of the lava on the west side of Katmai pass. The structure is porphyritic and the groundmass fine-grained, so that the rock is an augite aleutyte. The feldspars, tested by optical methods, show labradorite tending to andesine. There is little pale-green augite. The groundmass is microlitic and pilotaxitic, and shows flow structure. |
| Sample Location: |