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| 0114 |
Southern Tibet : vol.4 |
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surrounded with white salt incrustations and with beautiful rings of old beach-lines
resembling the amphitheatrically arranged benches of a circus. We move on one of
the higher »benches» at 40 or 50 m. above the pool. The whole ground is here
white as the snow on the Kwen-lun group visible above it at the horizon in the
N. N. E. Immediately to our right is a brownish violet low ridge. Fresh springs
are passed at several places. The grass is scant, but antelopes are seen. Of other
animals there are only wolves and ravens. Not far from the pool the rock was
grey, fine-grained quartzitic sandstone. At the base of the beach-line we follow, some
springs again appear, surrounded with grass and moss; their water goes to the salt
pool, which is a cut off part of Yeshil-köl. A pier-like ramification from the hill at
Camp XXI separates them. On the northern side of the pier sharply marked white
desiccation lines are seen concentric with the present shore-line. From the eastern
rim of the salt pool depression the two most dominating groups of the Kwen-lun
are seen to the N. 31° W. and N. 1° E., corresponding to those visible N. 21° W.
and N. 13° E. on Pan. 36B.
Two other very small depressions are passed, and a watercourse with a com-
paratively deep-cut bed. The ground is undulating and covered with good grass.
The rock is grey oolithic limestone. At Camp XXII stood grey, dense unclean lime-
stone. This camp is in the same place where Deasy had dug down his depot in
the ground, and which, in 1903, was visited by Rawling. The depot had also been
examined by Tibetan hunters.
The march of September 27th goes nearly east for 15.2 km. In the first
10.5 km. the ground rises 55 m. to a little threshold 5,095 m. high, or at a rate of
1:191. In the last 4.7 km. the ground again falls 18 m. or at a rate of 1:261.
The threshold, which may be regarded as a transverse pass in the eastern continua-
tion of the great latitudinal valley, is, therefore, very insignificant. Still it is the boun-
dary between the basin of Yeshil-köl and that of Pool-tso (or Pul-tso), and has, there-
fore, a certain importance as a waterparting.
Camp XXII was situated amongst very low soft sandhills, which continue for
a while to the east, after which we come out on a wider undulating valley plain
with abundant grass, and pierced by several erosion furrows, some of them with
brackish water. The ground is soft and red, sand and dust. No wild animals, but
dung of yak and kyang was seen. To the E. S. E. the mighty cupola-shaped moun-
tain mass is seen, which Rawling called Deasy Group. Our way goes up and down
over very low hills or rather unevennesses of the ground. Finally the threshold is
reached, and it proved to be extremely flat. The rock was dark grey, dense lime-
stone. Nearly the whole southern half of the horizon is hidden by a limestone rock.
The northern half being open, Pan. 39, Tab. 7 was sketched showing some of the
mighty Kwen-lun Peaks to the north and N. N. W.
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453
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464
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474
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484
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529
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541
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552
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568
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583
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600
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615
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629
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643
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654
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665
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677
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692
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707
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725
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736
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746
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756
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