National Institute of Informatics - Digital Silk Road Project
Digital Archive of Toyo Bunko Rare Books
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| 0045 |
Explorations in Turkestan : Expedition of 1904 : vol.2 |
Captions
| [Photo] 442 |
The Kizil Su where it leaves the Alai Valley. |
Citation Information
OCR Text
KARATEGIN AS SHAPED BY THE KIZIL SU.
The Kizil Su now follows a course of three physiographic divisions: (1) The Alai valley, (2) the valley of Karategin (Katta Kara Muk to Obu-garm), (3) the Vaksh valley (Obu-garm to the Oxus). We have studied the Alai valley as a basin, and as a whole it is a basin from which but a small proportion of the materials of its Quaternary erosion can have escaped; but in the western half there begin alluvial terraces flanking the Kizil Su flood-plain and gaining height toward the outlet. At a point 12 miles east of Katta Kara Muk, the old floor narrows rather abruptly from a width of 8 miles to about 1 mile and the valley becomes of normal aspect. And at Katta Kara Muk, where the true outlet canyon begins, there are three terrace-levels, respectively 70, 100, 200, and 300 feet above stream and continuing up the tributaries. There can be no question as to their
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