Southern Tibet : vol.7 / 801 ページ（カラー画像）

0801	Southern Tibet : vol.7
南チベット : vol.7

577
trace anything that could be called an uninterrupted series of folds. But even with
our present scanty knowledge of the orography of Western Tibet we may say that
there does not exist a regular series of folds in this region. The Central Kara-
korum therefore can not be traced for hundreds of miles as is the case with the Ladak
Range on Burrard's map. The orographical arrangement of this part of the Central
Kara-korum seems to be very much like that of the Kailas Range, which can be
traced to Surnge-la and then is dissolved into a complicated system of secondary folds.
Beyond the Chang-chenmo the case is the same with the Central Kara-korum. So
far this enormous range stretches from N. W. to S. E. with decreasing altitudes of
its gigantic peaks. But south of the Chang-chenmo the continuation of the range is
transformed into a series of transverse ranges, no more running N.W.—S. E. as the
Central Kara-korum, but W. N. W.—E. S. E., overlapping one another just as the
ranges of Western Central Transhimalaya, and in some cases connected with one
another in their western parts by bifurcations. We have no absolute proof of the
continuity of the system. But by way of orographical analogy we may feel per-
suaded that the Alung-gangri belongs to the same series of crustal folds as the
Central Kara-korum, and for this conclusion we find a strong support in Burrard,
who brings the Kailas Range of Tibet into uninterrupted connection with the Saltoro
Range of the Kara-korum. The parallelism is evident the entire way.

Thus the orography has become very complicated in the region north of the
Panggong Lakes, and this is the reason why I have spoken of a mountain knot
from which several ranges or systems of folds start. We have just dealt with two
of them, the one being in connection with the Ding-la Range and the other in con-
nection with the Alung-gangri.

A third main range, or rather system of ranges, issuing from the same moun-
tain knot is the one which has been mentioned before as forming the northern water-
parting of the Selling-tso—Panggong-tso depression, and in which we found ten passes
with a mean altitude of 5275 m. Before considering this comparatively high pro-
tuberance we will have to trace the stretching of its nearest neighbour to the south,
which forms the southern water-parting of the Selling-tso—Panggong-tso depression.

We have already followed it to Alung-gangri, a name that may be chosen
for signifying the whole protuberance. From there it runs S. E. and E. S. E. passing
north of and very near to Thok-jalung, 4958 m. At Shelkongda, 4877 m., it was
crossed by Littledale. Mount Kuhanbo-kang-la, 7218 m. (?), may be situated on it.
In the region north and N. E. of Yumba-matsen the Alung-gangri system seems to
consist of at least two ranges which diverge from one another south of Kuhanbo-
kang-la. It is not a bifurcation, but simply a separation or divergence of two ranges,
which for a long distance have been parallel. The southern branch, of which Sumar
and Taben are parts, runs along the northern and N. E. shores of Nganglaring-tso.
73. VII.

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

引用情報

OCR読み取り結果

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

引用情報

OCR読み取り結果

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