Letter | Published:

Radium and Geology

Naturevolume 74page635 (1906) | Download Citation



THE age of the great mountain ranges mentioned above by Mr. Reade, though comparatively late, is much earlier than that of the changes of vertical level investigated by Prof. Hull and Dr. Spencer to which I referred. They are evidenced by the drowned plains bordering the Atlantic on both sides, and by the deep cañons in them which are the continuations of existing river channels. These change of level are considered to be of Pliocene or early Pleistocene date, and, therefore, geologically very recent. Godwin Austen came to a similar conclusion about the English Channel.

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  1. Graveley, Huntingdon

    • O. FISHER


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