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0075 Explorations in Turkestan : Expedition of 1904 : vol.2
Explorations in Turkestan : Expedition of 1904 : vol.2 / Page 75 (Color Image)

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[Figure] 467 Map of the Aralo-Caspion Expansions (Konshin).

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doi: 10.20676/00000178
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as distinct from the Pliocene. During this it appears to have fallen to lower and
lower shores till but a narrow connection existed between the Aral and Caspian
through the Sari Kamish Basin. In the course of desiccation both seas shrank
till this connection became an overflow of the Aral through the Usboi channel
to the Caspian, which is probably an historic stage.

Davis's recognition that "the Quaternary sea resulted from an expansion
of a smaller early-Quaternary sea, to which the waters had shrunk from their
great Pliocene extension," becomes of importance in that it demonstrates a pre-
glacial aridity more pronounced than that of to-day. And if we place the great