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
| |||||||||
|
| IIIFカラー高解像度 |
| Southern Tibet : vol.4 | |
| 南チベット : vol.4 |
 |
 |
 |
 |
 |
 |
|
|
 |
|
|
|
|
|
|
|
|
引用情報
A LARGE BROOK. 39
From Camp X eastwards the ground rises decidedly, and one does not need to be in doubt any more. During four and a half days' marches we come to higher and higher ground. The distance from Camp X to Carp XI is 20.5 km. E. S. E., and the rise is 42 m. or at a rate of i : 488. This fact seems to indicate beyond doubt that the Lake of Aksai-chin must be at a lower level than Camp X.
The branch of the brook which was crossed at a short distance east of the camp, was much bigger than the first, though it only carried about 2 cub. m. per
second. Here the current was comparatively fast. The bottom of the bed was hard and consisted of sand and clay. Not the slightest trace of erosion terraces had been cut Out. The depth was, at its maximum, one foot. On both sides several shallow beds without water were crossed. The moisture at their bottom seemed to indicate,
that they had carried water a short time ago. Probably these beds change their position from time to time, otherwise terraces would needs be formed. Obviously
the brook had carried a large volume of water during the summer. By far the
greatest part of this water comes down from the high ranges to the north, which are covered by eternal snow, and follows the transverse valleys which open themselves
into the great latitudinal valley. The hard S. W. wind which now prevailed, nearly
stopped the current in some branches, and at one place a little lake had been formed in this way. Most of this hydrographic system, which is a very important feature
of the latitudinal valley, remained to the south of our day's march and of the next
two. The valley is rich in grass, especially to the left of our route. The soil is hard clay with some fine gravel on the surface. The latitudinal valley is very broad
in this region, or at least i 2 km. The nearest mountains on both sides are relatively low, those to the right are red, those to the north greyish green. The direction of our march is nearly east where the straight line of the horizon is very distant.
The chief branch of the brook is out of sight most of the day. It is, therefore, marked with a dotted line on the map. It may be that its course it situated
farther south, and that it actually flows nearer the base of the southern hills. This
would be caused by the northern mountains being higher and their screes richer in débris, thus forcing the brook southwards. The ground is now everywhere covered
with grass growing in small tussocks or fagots. It is yellow and hard after the first frost and only in the centre of every fagot the straws are still green and soft. This is a regular steppe, and, I believe, the most favourable region I have ever visited in Tibet. One cannot imagine a more hospitable region to penetrate in the inhospitable Tibet. The ground is even and sufficiently hard, there is any amount of grass, there is fuel and water, and there are antelopes and kyangs. It is, therefore, a good plan to remain in the latitudinal valley to let the animals recover before beginning the diagonal crossing of the difficult country. The ground is now sandy, as sand and grass generally go together. At the lee side of every grass-tussock there
|
|
|
|
|
|
|
|
|
Copyright (C) 2003-2019
National Institute of Informatics（国立情報学研究所）
and
The Toyo Bunko（東洋文庫）. All Rights Reserved.
本ウェブサイトに掲載するデジタル文化資源の無断転載は固くお断りいたします。