1911]
ON THE BEARDMORE GLACIER
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of great interest owing to chance of finding Cambrian fossils (Archeocyathus).
He mentioned the interest of finding here, as in Dry Valley, volcanic cones of recent date (later than the recession of the ice). As points to be looked to in Geology and Physiography:
1. Hope Island shape.
2. Character of wall facets.
3. Type of tributary glaciers—cliff or curtain, broken.
4. Do tributaries enter ‘at grade’?
5. Lateral gullies pinnacled, &c, shape and size of slope.
6. Do tributaries cut out gullies—empty unoccupied
cirques, hangers, &c.
7. Do upland moraines show tesselation?
8. Arrangement of strata, inclusion of.
9. Types of moraines, distance of blocks.
10. Weathering of glaciers. Types of surface. (Thrust mark? Rippled, snow stool, glass house, coral reef, honeycomb, ploughshare, bastions, piecrust.)
11. Amount of water silt bands, stratified, or irregular
folded or broken.
12. Cross section, of valleys 35° slopes?
13. Weather slopes debris covered, height to which.
14. Nunataks, height of rounded, height of any angle
in profile, erratics.
15. Evidence of order in glacier delta.
Debenham in discussion mentioned usefulness of small chips of rock—many chips from several places are more valuable than few larger specimens.
We had an interesting little discussion.
