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.7 | |
| 南チベット : vol.7 |
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引用情報
YOUNGHUSBAND'S OPItiION OF TIIE WORKMANS.
485
tongue water derived from the snow collected in all parts of this extensive region to give birth to the Nubra river. This central trunk, with its multitude of affluents resembling a river system, is more fittingly styled the Siachen glacier-system. The four other great Karakoram glaciers, as well as many smaller but by no means insignificant ones, are fashioned on the same plan. This type is peculiar to the Karakoram, being conditioned on the configuration of its valleys and the arrangement of its peaks. For this reason, as well as on account of certain structural features referable to existing conditions , all these glaciers merit the designation of glacier-systems or glaciers of the Karakoram type.
Dr. Workman adds that the enclosing barriers of the Siachen consist of granite, gneiss, crystalline schists, slates and shales, sandstones, amorphous and crystalline limestones and conglomerates, with some igneous intrusions. He compares the N. E. wall of the Siachen trunk in structure and extent with that, which, with an unbroken length of 39 miles, forms the upper portions of the southern Hispar and west Biafo barriers.
The following table of dimensions and falls of the greatest glaciers is of special interest:
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| Length | Head | Tongue | Total fall | Average fall | ||||
| Siachen . . . . | Kil. = miles 72 45 | metres = feet 6,5oo 20,992 | metres = feet 3,704 12,150 | metres = feet 2,696 8,842 | I to 26 | ||||
| Chogo Lungma | 48 | 3o | 5,854 | 19,200 | 2,926 | 9,600 | 2,928 | 9,600 | i to 16 |
| Biafo | 59 | 37 | 5,335 | 17,500 | 3,201 | 10,500 | 2,134 | 7,000 | I to 27 |
| Hispar | 58,5 | 36,6 | 5,335 | 17,500 | 3,353 | 11,000 | 1,982 | 6,50o | I to 29 |
| Baltoro . . . . | 57,6 | 36 | 5,072 | 16,637 | 3,353 | 11,000 | 1,719 | 5,636 | I to 33 |
It would take us too far to enter further into the details of the fascinating book of Mrs. and Mr. Workman, which is one of the most important contributions ever given to our knowledge of these mountains.
The Exploration of the Siachen or Rose Glacier, Eastern Karakoram is the title of a lecture delivered on November 24th, 1913, to the Royal Geographical Society, by Mrs. F. BULLOCK WORKMAN.' It tells the same story as the book quoted above. After the paper Sir FRANCIS YOUNGHUSBAND stated that Dr. and Mrs. Workman had explored the Siachen Glacier »to its extremities, and mapped scientifically and accurately, so that we now have a full and detailed description of this remarkable glacier. I desire to congratulate Mrs. and Dr. Hunter Workman on the very fine work they have accomplished, and on the highly valuable scientific results they have attained, and which could not have been accomplished without great care of organisation
I Geogr. Journal. February 1914, p. 117 et seq.
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