Abstract

Sedimentary stratification, foliation, and crevasse traces (including those of healed crevasses) are well displayed at the surface of the small, steep glacier Charles Rabots Bre. Two main flow units, cropping out as convex downglacier arcuate systems of stratification, are recognizable, but others, related to the irregular distribution of the accumulation areas, also contribute significantly to the outcrop pattern. Between the flow units and at the margins of the glacier, strong, steeply dipping longitudinal foliation crops out parallel to longitudinally striking stratification. Much of this foliation is believed to form as a result of shearing and recrystallization in the planes of favorably oriented sedimentary layers. The persistence of crevasse traces below the sets of marginal and transverse crevasses in an area of strong ablation indicates that fracture occurs to greater depths in temperate glacier ice than is generally believed.

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