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Text Description: n.d. on deposit thickness; pumice with lesser amounts of blocky grains and platy shards. In fluvial sand overlying Upper White Channel Gravel; ~5.5 m above Little Blanche Ck. tephra (UT1623). Field name JJD00-7 References:  A catalogue of late Cenozoic tephra beds in the Klondike Goldfields and adjacent areas, Yukon Territory |
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