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 |
| Scientific Results of a Journey in Central Asia, 1899-1902 : vol.1 | |
| 1899-1902年の中央アジア旅行における科学的成果 : vol.1 |
 |
 |
 |
 |
 |
 |
|
|
 |
|
|
|
|
|
|
|
|
| 同じ斜面を歩いて降りる。WALKING DOWN THE SAME SLOPE. | |
| タマリスクの根を避けている砂丘の断面図。VERTICAL SECTION OF DUNES AVOIDING A TAMARISK CONE. |
引用情報
THE TSCHERTSCHEN DESERT.
sun shone out, was more than the strongest eyes were able to endure. Desolate and silent though it was, the scene was all the same both majestic and sublime. During the morning, so long as the westward-facing slopes remained in the shade, their tints varied from grey-blue to a cold steel-blue according to the angle at which they lay, while the summits of the dunes
glistened white like the backs of dolphins.
It would have been easy to imagine one
Fig. 283. WALKING DOWN THE SAME SLOPE. were travelling amongst the eternal snow-
fields of the high Alps. But the atmosphere in the distance was an opaque grey, because of the fine crystals with which it was filled, so that we were unable to see distinctly for more than one kilometer away.
To-day the sand was higher and more difficult than on the day before. The small depressions we struck into were completely sanded up, and proved of no real assistance to us on our march; and each was successively poorer in kamisch. All day long we passed only two or three tamarisks, growing as usual on high conical mounds, but evidently quite dead and withered a long time ago, so that they were tolerably old, if not indeed very old. Now the dune-waves of the sandy ocean avoid these tamarisk-cones, so that the latter are always surrounded by circular dunes. In fact the cone, with its girdle of dunes, is like the active crater of Vesuvius inside its Monte Somma, a form of relief to be ascribed to what the Germans call Windsiauung. Nevertheless, whenever this circular dune grows sufficiently high, it must inevitably overwhelm the tamarisk-cone.
Fig. 284. VERTICAL SECTION OF DUNES AVOIDING A TAMARISK CONE.
Small depressions answering geographically to the bajirs still continued to meet us at intervals, but they were all more or less filled with sand. The difference in this respect, as compared with the northern part of the desert, is plainly to be accounted for by the winds, which follow other, and increasingly less regular, directions in proportion as you approach the mountain-chain of the Tokus-davan, and the region in which the montane winds prevail. We had been every way more comfortable in the middle of the desert than we were here. Still the sand was not absolutely and entirely barren. Sometimes we would travel for several hours together without seeing a trace of organic life; then we would perceive a few stalks of ka-
342
|
|
|
|
|
|
|
|
|
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。