Sample: AD-1
| Sample ID: | AD-1 [1] |
| Station ID: | Adak_Island_Ash _Marker |
| AT Num: | |
| Volcano: | |
| Possible source: | |
| Eruption: | Great Sitkin Forty Year Ash |
| Collector: | Unknown, Unknown |
| Date sampled: | 1993-00-00 |
| Sample type 1: | Tephra Fall |
| Color: | pinkish-gray |
| Final unit: | |
| Text Description: | Thickness of 6-10 cm. Consists of a pinkish-gray clay- or silt-size material containing lenses of fine-grained volcanic sand. Main components are volcanic glass (69%) and plagioclase (21%) with a characteristicly significant amount of pyroxenes (6%) and absence of green or brown hornblende. More than 50 wt. % of the sample are particles smaller than 0.071 mm in size. The glass is colorless, juvenile, and contains microlites of plagioclase. |
| Sample Location: |