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Text Description: 5 cm thick; pumice; in sand with organics; in Upper White Channel Gravel; 5.5 m below Paradise Hill tephra (UT1624); field name 599a References:  A catalogue of late Cenozoic tephra beds in the Klondike Goldfields and adjacent areas, Yukon Territory Glass-fission-track ages of late Cenozoic distal tephra beds in the Klondike district, Yukon Territory |
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