ABSTRACT

Halden Creek has been frequently impounded by flowslides. The landslides are recorded insedimentary exposures in two ways: 1) Trees died in the resultant temporary lakes and weresubsequently partially buried by alluvium. The buried portions of the trees were preserved. Bankerosion exhumed these ancient drowned forests. 2) In some cases multiple organic layers ineroded slide debris record separate flowslide events. Using radiocarbon dates of trees and organiclayers, we attempt to reconstruct flowslide history at Halden Creek.

Flowslides and drowned, buried forests at Halden Creek, northeasternBritish Columbia

MARTEN GEERTSEMA AND JOHN CLAGUE

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