Sample: Downes_1985_55-3B
| Sample ID: |
Downes_1985_55-3B [1] |
| Station ID: |
Downes_1985_55 |
| AT Num: |
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| Volcano: |
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| Possible source: |
Churchill, Mt |
| Eruption: |
Mt Churchill White River North Lobe |
| Collector: |
Unknown, Unknown |
| Date sampled: |
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| Sample type 1: |
Tephra Fall |
| Color: |
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| Final unit: |
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| Text Description: |
Northern lobe of the White River Ash. The ash layers lie not more than 1 m beneath the surface of the soil and are often seen as thin bands in quarries, road cutes, and river banks. To obtain a sample, a trench was cut at the bottom of the layer, the thickness was recorded, and a representative portion (about 1 kg) was collected. If the deposit was thick and apparently unreworked, several samples were taken in stratigraphic sequence (from Downes 1985 p. 929). |
| Sample Location: |
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References Cited
Downes, Hilary, 1985, Evidence for magma heterogeneity in the White River Ash (Yukon Territory): Canadian Journal of Earth Sciences [Journal Canadien des Sciences de la Terre], v. 22, n. 6, p. 929-934.