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
『東洋文庫所蔵』貴重書デジタルアーカイブ
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| 0623 |
Southern Tibet : vol.7 |
| 南チベット : vol.7 |
引用情報
OCR読み取り結果
glacier passes in these high regions have fallen in recent times is too frequent an
occurrence. He is rather looking for changes in the glaciers themselves, although
not necessarily an advance or increase of the ice. For in another region he had
previously seen an example of how the recession of a glacier might in particular circum-
stances close a route, for instance when a secondary glacier by its recession gave
cause to rock-falls which had not occurred at a time when it joined a main icestream.¹
In 1848 THOMSON was unable to find anyone having crossed the Saltoro Pass.
In June 1909 Longstaff went up the Saltoro River. Opposite Paro sheer spires
of granite rise to a height of 5,000 feet. »The rocks on the north side of the
valley appear to consist exclusively of granites, but the high splintered crest on the
south is of slate.» Through the Ghyari nala he turned towards the Saltoro Pass.
Three glaciers on the right side of the nala were all found to be actively advancing.
The natives asserted that this had been going on for ten or twelve years. »As
the snouts are approximately in the position shown on the G. T. S. map (1861),
it is evident that there has also been at least one period of local retreat since
that date.»
The snout of the Bilafond Glacier was found at a height of 12,400 feet. This
glacier had been joined by the Chumik Glacier about fifteen years ago. »Comparison
with the old survey indicates an advance of about 2 miles of the combined trunk
stream.» The moraines of the glacier, and so far as he could see the two confining
ridges, consist entirely of granite.
The Saltoro Pass was found to be 18,200 feet high. The upper portion of
the Siachen Glacier was believed to be a glacier of which the coolies said that it
would lead eventually to Chang-tang, by which Longstaff concluded they meant the
country north of the Kara-korum Pass; and he christened this supposed new glacier
the Teram Glacier. Later on he became aware of the mistake.
Four or five medial moraines were seen; those on the right half of the glacier
appeared to consist entirely of granite, which was in accordance with the character
of that range of the Kara-korum across which they had passed. From the moraines
of the left half specimens of hornblende schist, mica schist, dark slate and marble
were obtained.
The Teram Kangri Peak proved to be one of the mountain giants on the
earth, supposed to be approximately 27,610 feet high.²
The end of June they went up the Chumik Glacier around which the rocks also
consisted of granite. The snout of the Rgyong Glacier was found about a mile
below the point marked on the Survey, and the glacier had all the characteristics
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70
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81
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92
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105
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117
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128
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138
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150
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161
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177
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190
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202
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214
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225
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237
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251
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263
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277
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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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621
622
623
624
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
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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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