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0124 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 / 124 ページ(白黒高解像度画像)

キャプション

[Figure] 66 (西)クガルト(Kugart)渓谷にある峡谷の1マイルの断面 北東向きOne-mile section of Gorge in the (western) Kugart Valley, looking northeast.
[Photo] 67 キルギス橋近郊にある(東)クガルト(Kugart)の上部の段丘 南西向き 背景は、傾いた古い礫岩の切り開かれた丘と突出部(spurs)Upper Terrace of the (eastern) Kugart, near the Kirghiz Bridge, looking southwest. Dissected hills and spurs of tilted older conglomerates in the background.

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

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I00   EXPLORATIONS IN TURKESTAN.

After we had crossed the Kugart pass, in the Fergana range, and descended

into the valley of the (eastern) Kugart-su, another finely developed system of

highest terrace   . 6 . Here and else-

terraces was found. The main and branch

valleys here, below the torrential headwaters, were eroded in a broad basin of tilted conglomerates that probably belong with the Narin formation. The spurs of the conglomerate hills rose above the

Fig.   (fig. 7)

Fig. 66.—One-mile section of Gorge in the (western) Kugart where the hills and spurs were dissected

Valley, looking northeast.   by rather close-spaced ravines, and the

slopes were beautifully graded. The terrace plain ascended with a rather strong gradient into the embayments between the spurs. In such a case it is evident that the material of the terrace was derived from the side valleys as well as from the

Fig. 67.—Upper Terrace of the (eastern) Kugart, near the Kirghiz Bridge, looking southwest. Dissected hills and spurs of tilted older conglomerates in the background.

main valley. The stream has intrenched itself 225 feet below the upper terrace plain at the Kirghiz bridge, carving several terrace benches in the process. The upper terrace plain and the stronger terrace benches continue for ro or 12 miles northward toward the Narin Valley. A mile upstream, south, from the rude Kirghiz bridge by which we crossed the river, a westward swing of its course