Sample: 2005JDDS01
| Sample ID: | 2005JDDS01 [1] [2] |
| Station ID: | 2005JDDS01 |
| AT Num: | |
| Volcano: | Jumbo Dome |
| Possible source: | |
| Eruption: | |
| Collector: | Stevens, D. P. |
| Date sampled: | 2005-01-01 |
| Sample type 1: | Lava |
| Color: | |
| Final unit: | |
| Text Description: | 20 pct hornblende, 4x1mm in finegrained holocrystalline pink groundmass. Notable lack of plagioclase phenocrysts. Sample derived from massive, frost-rived blocks of dacite, on the north-northeast edge of the summit area. Athey and others (2006) published a 40Ar/39Ar plateau age for this sample of 1.026 ± 0.057 Ma. |
| Sample Location: |
