41 LA PEROUSE GLACIER performed within that period. The section it exposes (fig. 22) includes horizontal beds of blue clay, flanked on the seaward side by highly inclined beds of similar clay alternating with layers of sand. Both these are truncated … horizontally FIG. 22. SECTION OF TIMBERED RIDGE NEAR LA PEROUSE GLACIER. bedded grav¬ A, laminated clay. B, bedded clay and sand. C, bedded gravel, els, in which with angular boulders and trunks of trees. D, bouldery till, with tree trunks. G, glacier. are incorpo¬ rated large angular boulders and…
Natural history -- Alaska · Scientific expeditions · Alaska
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