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Ground-ice investigations, Klondike District, Yukon Territory

1986; NRC Research Press; Volume: 23; Issue: 4 Linguagem: Inglês

10.1139/e86-055

1480-3313

Hugh M. French, Wayne H. Pollard,

Cryospheric studies and observations

Massive bodies of ground ice, 2.0–4.0 m thick, are regularly exposed in small placer mining operations in the Klondike District, Yukon. At Mayes claim, Hunker Creek, the ice is underlain by 2.0–3.0 m of creek gravels and overlain by 10.0–15.0 m of organic-rich and ice-rich muck deposits. The crystallographic and petrographic characteristics of the ice and its stratigraphic occurrence suggest that the ice body either had a segregation origin or was a residual snowbank subsequently buried by muck deposits and recrystallized.