Sample: 85CNS05
Sample ID: | 85CNS05 [1] [2] | ||||||||||
Station ID: | 85CNS05 | ||||||||||
AT Num: | |||||||||||
Volcano: | Spurr | ||||||||||
Possible source: | |||||||||||
Eruption: | |||||||||||
Collector: | Nye, C. J. | ||||||||||
Date sampled: | 1985-01-01 | ||||||||||
Sample type 1: | Lava | ||||||||||
Color: | |||||||||||
Final unit: | |||||||||||
Text Description: | Sample of juvenile block from block-and-as flows deposited on the debris avalanche formed during flank collapse of ancestral Mt. Spurr (“pyroclastic fan” of Nye and Turner (1990)). Sample PF-05 of Nye and Turner (19 90). 1200' level same canyon as S3 and S4. Large brecciated aa flow. Abundant. 5 mm cpx. Probable source of cpx-rich float. Mineralogy ~same as b&a flows S1 and S3 but lacks bright hematitic alteration. | ||||||||||
Sample Location: |
![]() ![]() Great Sitkin Spurr Legend ✕
100 km 50 mi |