Sample: 72-ARh-310
| Sample ID: | 72-ARh-310 [1] |
| Station ID: | 72-ARh-310 |
| AT Num: | |
| Volcano: | Jarvis |
| Possible source: | |
| Eruption: | |
| Collector: | Richter, D. H. |
| Date sampled: | 1971-01-01 |
| Sample type 1: | Lava |
| Color: | |
| Final unit: | |
| Text Description: | Dacite cinder cone. Chiefly dense glassy scoria and blocks showing bread-crust texture. Rocks are dark gray to black and contain phenocrysts of augite, plagioclase, and minor hypersthene in a glassy matrix. Cone still retains original form. K-Ar date (M.A. Lanphere, written commun., 1974) on plagioclase indicates age of 1.34 +/- 0.20 m.y. (Sample 72-ARh-310) |
| Sample Location: |