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0174 Explorations in Turkestan 1903 : vol.1
トルキスタンの調査 1903年 : vol.1
Explorations in Turkestan 1903 : vol.1 / 174 ページ(白黒高解像度画像)

キャプション

[Photo] 111 Katin-Art峠のおよそ5ベルスタ下から見たSari Tash渓谷の西側The eastern side of the Sari Tash Valley from about 5 versts below Katin-Art Pass.
[Photo] 112 下盤Aの断片 Taldic峠のすぐ下から見下ろしたものRemnants of Floor A, as seen looking down from just below Taldic Pass.

New!引用情報

doi: 10.20676/00000177
引用形式選択: Chicago | APA | Harvard | IEEE

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148   EXPLORATIONS IN TURKESTAN.

branch of the Ainu darya, which is the present outlet of the Kizil Su. It seems highly probable that the Alai Valley, with its great transverse moraines, may have held one, or even several, lakes during glacial epochs ; but a lake reaching to the height of our escarpment terraces would be high above the lower passes over the Alai range, and, moreover, we observed no lake sediments.

Fig. 111.—The eastern side of the Sari Tash Valley from about 5 versts_below Katin-Art Pass.

It seems probable that a sinking of the Alai Valley with the region including the northern side tributaries, accompanied by a fault on the southern border, would have resulted in the observed truncation, lowered the base of, and caused the deepening of, the Trans-Alai side valleys, while the part going down would have been filled up with waste. This fits the present conditions observed.

Fig. 112.—Remnants of Floor A, as seen looking down from just below Taldic Pass.
OBSERVATIONS IN THE TALDIC VALLEY.

Our route led us twice along that part of the Taldic darya between its source at Taldic pass and Gulcha on the southern border of the Fergana lowlands. On the way up a general idea of the valley form was obtained ; on the way down more detailed observations were made.

It will be seen on the map that this stream starts with a northeasterly course, but gradually bends toward the west, and finally recrosses the meridian of its source. A straight line from Taldic pass to Gulcha points but a few degrees east of north.