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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| 0750 |
Southern Tibet : vol.7 |
| 南チベット : vol.7 |
引用情報
OCR読み取り結果
A valley . . . . . . . . . . . . . . . . . 4863 m. . . . Hedin
Camp near lake . . . . . . . . . . . . . . 5235 » . . . Littledale
Lac des Perdrix . . . . . . . . . . . . . . 4450 » . . . de Rhins
Pulka-tso . . . . . . . . . . . . . . . . . 4928 » . . . Hedin
Lake near Camp 28 . . . . . . . . . . . . 5039 » . . . Bower
Lumbur-ringmo . . . . . . . . . . . . . . 4633 » . . . Hedin
Lemchung-tso . . . . . . . . . . . . . . . 4820 » . . . Hedin
Shemen-tso . . . . . . . . . . . . . . . . 4960 » . . . Hedin
Arport-tso . . . . . . . . . . . . . . . . 5298 » . . . Hedin
Tsaggar-tso . . . . . . . . . . . . . . . . 5160 » . . . Deasy
The mean altitude of this long valley is 4944 m. Its immediate continuation
to the west is the Chang-chenmo valley, from which it is separated only by the flat
pass of Lanak-la, 5488 m. high (Deasy). A very considerable part of my journey
in 1908 goes through the western part of this valley. The source of the river that
once flowed through it to the W. N. W. and N. W. probably was situated somewhere
in 85° East. Long. The western part of the preceding valley to the north, the
one containing amongst other lakes the To Huping-tso and Gore-tso of Rawling,
has drained off via Aru-tso to the river which once flowed in the basin of the
present Shemen-tso. In the far east this valley is situated at a very short distance
from the preceding valley, the one of Toktomai-ulan-muren, and is separated from
it only by the range of Buka-magnai. The phenomenon of great rivers flowing
close to one another without joining, and being separated by high, wild ranges, is
very common in the middle course of the Indo-Chinese rivers. But the two valleys
dealt with here no doubt joined some distance east of Buka-magnai.
The Chang-chenmo valley which we have now brought into connection with
the valley of the Mur-usu tributary north of Tang-la, is a transverse valley straight
across a great portion of the Kara-korum system. From a purely tectonic point of
view the fold may be traced from Arport-tso still farther north-westwards through
the valley I followed in 1908, to the Lake of Aksai-chin and to the upper Kara-kash.
If we compare the great latitudinal valley north of the Tang-la and stretching
to the Chang-chenmo, with the Selling-tso—Panggong-tso valley, we will see that
they are perfectly parallel with one another and with the Transhimalayan system.
In their eastern portions they turn to the E. N. E. and N. E. just as the Nien-chen-
tang-la, while in the west they become more and more parallel to the Gartang and
the upper Indus. The fact that every one of these great troughs contains a series
of depressions, lakes and rivers, proves that the above examination is correct. The
most important result of this examination is that it now becomes easier for us to
follow the stretching of the great mountain systems of Tibet.
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117
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150
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161
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263
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291
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302
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315
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329
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342
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352
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363
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375
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386
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397
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407
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420
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432
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444
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457
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467
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478
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488
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499
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510
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520
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530
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541
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552
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563
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573
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583
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593
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605
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615
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625
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635
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646
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656
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666
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681
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693
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704
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714
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726
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737
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747
748
749
750
751
752
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758
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773
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788
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801
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813
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833
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848
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864
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876
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888
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