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Recent Work of Geological Surveys

Naturevolume 82pages380382 (1910) | Download Citation



I. GREAT BRITAIN AND INDIA. THE wide range of work done by the Geological Survey of Great Britain is again seen in the “Summary of Progress for 1908” (1909, price Is.). The numerous notes made on observations in England, Wales, and Scotland are, of course, only preliminary to their development in future memoirs; but we may here direct attention to the careful re-examination of two marine Devonian intercalations in the Upper Old Red Sandstone near Milford Haven (p. 35), and to the description of the Achanarras beds (Middle Old Red Sandstone) of Caithness, by Mr. R. G. Carruthers (p. 87). Caithness has also yielded a mass of sandstone with Lower Cretaceous fossils (p. 62). Even if this proves to be transported, like the blocks of chalk in Aberdeenshire, it will remain a remarkable addition to our knowledge of the extent of the early Cretaceous sea. The Petrographical Department has shown the presence of nepheline in several rocks of the Midland Valley of Scotland (p. 44).


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