. British Antarctic expedition, 1907-9, under the command of Shackleton : reports on the scientific investigations ; geology. • SW?*5BnE£n^ -/A. Fig. 1. MORAINE CONE WITH RAISED BEACH MATKRIALMount Larsen on the right. Backstairs Passage is behind the cone. ^?^;...- «(ag*^- r/^r--*- JS£2SS^^ Fig. 2. UPTHRUST SERPUL^ DEPOSITSAbout IGO feet (49 m.) above sea-level, near Backdoor Bay, Cape Royds. The figuresshow the position of the deposit of serpulw. Cape Royds, bounding Backdoor Bayon the west, is in the middle distance ; beyond is McMurdo Sound and the Royal Society Range [To face p.
. British Antarctic expedition, 1907-9, under the command of Shackleton : reports on the scientific investigations ; geology. • SW?*5BnE£n^ -/A. Fig. 1. MORAINE CONE WITH RAISED BEACH MATKRIALMount Larsen on the right. Backstairs Passage is behind the cone. ^?^;...- «(ag*^- r/^r--*- JS£2SS^^ Fig. 2. UPTHRUST SERPUL^ DEPOSITSAbout IGO feet (49 m.) above sea-level, near Backdoor Bay, Cape Royds. The figuresshow the position of the deposit of serpulw. Cape Royds, bounding Backdoor Bayon the west, is in the middle distance ; beyond is McMurdo Sound and the Royal Society Range [To face p. 266 UPTHRUST MARINE MUDS 267 low elongated mound with occasional conical projections. One of these is shown inPlate LXXXVII. The raised beach proper is capped by angular blocks of morainematerial, chiefly formed of quartz and felspar porphyry, with thin greenish crusts ofepidote. Associated with these blocks were fragments of apatlte-allanite-granite,these fragments being mostly smaller than those of the quartz- and felspar-porphyries. Some of these pieces were striated, others showed evidence of havingbeen crushed, apparently by ice pressure. Occasional blocks were observed of avery curious porphyritic granite with singly twinned orthoclase crystals
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Keywords: ., boo, bookcentury1900, booksubjectgeology, booksubjectpaleontology
