IIIFカラー高解像度
国立情報学研究所 - ディジタル・シルクロード・プロジェクト
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| IIIFカラー高解像度 |
| Southern Tibet : vol.4 | |
| 南チベット : vol.4 |
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引用情報
| 220 | LATITUDINAL VALLEYS OF THE CHANG-TANG. | |
| To the north is a transverse valley, which probably pierces the mountains and perhaps belongs to the Kara-kash like the one of the previous day. South of our route was a large sheet of ice. The plain was surrounded by irregular, interrupted and detached mountains. At the base of the eastern hills, Camp CCXCVIII was pitched. Here nothing, except the usual hard plants, was to be had. There was not even a sign of snow, the country was quite bare and barren. The last pass had formed a very sharp boundary to the snow-fall. Even the surrounding hills were bare. That the snow-falls of the Kara-korum region thus suddenly ceased, looked somewhat critical for us, as we, at several camps, had not had other water than that from melted snow. The animals had to be brought to a place with grass and they got a day's rest at this camp. After a temperature of —30.2° in the night, a regular S. W. storm began to blow at 10.30 o'cl. a. m., increasing in the course of the day and bringing dark clouds over the desolate hills. Pan. 386A and B, Tab. 67, shows the extraordinary forms of the mountains, more particularly to the N. N. W., with sharp pinnacles of limestone cropping out of the detritus. The march of 7anuary 8th, is directed E. N. E. for 15.8 km. and again has a transverse threshold in the latitudinal valley to be crossed. This threshold is situated halfway between the two camps, 7.9 km. from each. Its height is 5,355 m. ; the rise from the 5,148 m. high Camp CCXCVIII, is, therefore, 207 m. or as 1:38, and the fall to the 5,165 m. high Camp CCXCIX, is 190 m. or as 1:42. The rock at the first-mentioned camp was greyish white dense limestone; on the pass we had reddish brown calcareous sandstone. The temperature of the night was only —18.5°, due to clouds and wind. Marching E. N. E. over comfortable, slowly rising ground, we left to the north the transverse valley which seems to belong to the Kara-kash drainage area, and in the background of which flat hills are seen. Near the pass the ascent becomes a little steeper, but is very easy the whole way. The view from this flat threshold looked promising. The valley going down eastwards is broad and open, and bounded by yellowish pink ridges of insignificant height. In its background, no high mountains were visible, and it seemed likely that this valley would debouch into the great Aksai-chin Plain where we had had our Camp VIII in 1906. At the sides of the erosion furrow from the pass, the usual hard plants, yaftchan and 6urtse, were growing, and at Camp CCXCIX, some grass, sufficient for a night. There was no water, only a very small patch of snow in the bed. From this camp, Pan. 388A and B, Tab. 68, was taken. It gives an idea of the mountain range north of the camp, and the stretching of the latitudinal valley, west and east. On 7anuary 9th, we made only 5.6 km. first S. E. and then N. E. In this distance, we descended from 5,165 m. to 4,977 m. or 188 m., giving a rate of the fall as 1: 3o. A minimum temperature of —18.8°, and thick clouds. We continued | ||
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