Sample: Preece_2000_Klondike_District_Quartz_Creek_Tephra
| Sample ID: |
Preece_2000_Klondike_District_Quartz_Creek_Tephra [1] |
| Station ID: |
Klondike_District_Regional_Tephra |
| AT Num: |
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| Volcano: |
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| Possible source: |
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| Eruption: |
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| Collector: |
Preece, S. J. |
| Date sampled: |
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| Sample type 1: |
Tephra Fall |
| Color: |
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| Final unit: |
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| Text Description: |
Interstratified with sands and silts in the upper part of the White Channel gravels. In places, this tephra bed drapes into ice-wedge casts or is cut by them. The composition reported here is the average of two samples: UT1001, UT1053. Type II beds have more crystals than type I beds, and the glass is mainly in the form of highly inflated pumice. Feldspar, orthopyroxene, and green amphibole are common with minor or trace amounts of red amphibole, clinopyroxene, iron-titanium oxides, apatite, and zircon. |
| Sample Location: |
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References Cited
Preece, S. J., Westgate, J. A., Alloway, B. V., and Milner, M. W., 2000, Characterization, identity, distribution, and source of late Cenozoic tephra beds in the Klondike District of the Yukon, Canada: Canadian Journal of Earth Sciences, v. 37, n. 7, p. 983-996.