Sample: Westgate_2000_Sulphur_Creek_Dawson_tephra
| Sample ID: |
Westgate_2000_Sulphur_Creek_Dawson_tephra [1] |
| Station ID: |
Sulphur_Creek |
| AT Num: |
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| Volcano: |
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| Possible source: |
Emmons Lake Volcanic Center |
| Eruption: |
Emmons Lake Volcanic Center C2 |
| Collector: |
Westgate, J. A. |
| Date sampled: |
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| Sample type 1: |
Tephra Fall |
| Color: |
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| Final unit: |
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| Text Description: |
25-cm-thick-tephra; consists of thin, bubble-wall shards. Orthopyroxene, plagioclase, magnetite, and ilmenite are relatively abundant in the small crystal component, which also contains minor amounts of clinopyroxene, apatite, and zircon. Deformed, normally graded vitric beds; sharply defined basal contact with underlying loess. Lowermost 20 cm of tephra is very pure, the uppermost 5 cm consists of reworked tephra and loess. |
| Sample Location: |
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References Cited
Westgate, J. A., Preece, S. J., Kotler, Erica, and Hall, Sheila, 2000, Dawson Tephra: a prominent stratigraphic marker of late Wisconsinan age in west-central Yukon, Canada: Canadian Journal of Earth Sciences, v. 37, n. 4, p. 621-627.