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Our Book Shelf

Abstract

IN this excellent monograph. which is now reprinted from the Preceedings of the Geological Society of Liver pool, Mr. Morton has brought together a vast amount of valuable information concerning the lower carboniferous rocks, as displayed in a district where they have been but little studied. The splendid escarpment of the Eglwyseg rocks, near Llangollcn affords a series ol magnificent sections, the interpretation of which, however, requires considerable patience, care, and caution on the part of the field geologist. Mr. Morton shows that the succession of the lower carboniferous rocks in North Wales presents marked points of difference from that which is observed either in Yorkshire or Derbyshire. He divides these lower carboniferous rocks into two groups—the carboniferous limestone below and the Cefn-y-Fedw sandstone above; and in the correlation of these he adopts the views originally put forward by Prof. A. H. Green, and since supported by Mr. D. C. Davics, namely, that the conglomerate and sandstone strata overlying the carboniferous limestone represent not only the millstone grit, but also the Yoredale rocks of Prof. Phillips and the Geological Survey.

The Carboniferous Limestone and Cefn-y-Fedw Sandstone of the Country between Llanymynech and Minera, North Wales.

By George H. Morton, Honorary Secretary of the Liverpool Geological Society. (London: David Bogue, 1879.)

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J., J. Our Book Shelf . Nature 21, 105–106 (1879). https://doi.org/10.1038/021105b0

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