. British Antarctic expedition, 1907-9, under the command of Shackleton : reports on the scientific investigations ; geology. e Drygelski and Larsen Glaciers tothe left of M^Crummer. Line of Moraine conesand marine muds sea, resting oncones of old glacier ice. Fig. 64. Rough Sketch of Upthrust Marine Moraine Cones, Backstairs Passage Bay cretionary groups of mirabilite ciystals may have formed, subsequently added toby accretion, and thus these masses may have exerted an expansive force upon theice around them. From what has been said, it will appear that this locality presents m
. British Antarctic expedition, 1907-9, under the command of Shackleton : reports on the scientific investigations ; geology. e Drygelski and Larsen Glaciers tothe left of M^Crummer. Line of Moraine conesand marine muds sea, resting oncones of old glacier ice. Fig. 64. Rough Sketch of Upthrust Marine Moraine Cones, Backstairs Passage Bay cretionary groups of mirabilite ciystals may have formed, subsequently added toby accretion, and thus these masses may have exerted an expansive force upon theice around them. From what has been said, it will appear that this locality presents manyfascinating problems which yet await solution. One conclusion which possibly maybe deduced at present is that in recent time the ocean has here undergone a negativemovement of at least 20 feet, possibly as much as 600 feet. The evidence of theostracoda, according to Mr. Chapman, agiees with that of the foraminifera, forthey seem to indicate deposits formed at a far greater depth. Descriptions of theorganisms by Mr. F. Chapman, Mr. C. Hedley, and Mi. E. F. Hallman are givenin the second volume of this Memoir. PLATE LXXXMII. Fig. I. LIOTHVKIXA ANIAUeTICA (J5LOCKMA>K)
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