Sample: CG11
| Sample ID: | CG11 [1] |
| Station ID: | Clam_Gulch |
| AT Num: | |
| Volcano: | |
| Possible source: | |
| Eruption: | |
| Collector: | Unknown, Unknown |
| Date sampled: | |
| Sample type 1: | Tephra Fall |
| Color: | pink-white |
| Final unit: | |
| Text Description: | Sampled from a 2-3 cm pink-white, fine- to medium-grained tephra layer in a sandstone unit with coal stringers. There are fine coal stringers immediately above and below CG11 . About 30% delicate-looking bubblewall shards and slightly altered pumice fragments, and 5-7% plagioclase. Few grains are zoned or twinned. Trace quartz with undulose extinction, volcanic rock fragments, hornblende, zircon, and organic material. |
| Sample Location: |