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Digital Archive of Toyo Bunko Rare Books
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| 0033 |
Explorations in Turkestan : Expedition of 1904 : vol.2 |
Captions
| [Photo] 433 |
Sand and Arkose Residuum of Deflation (Kara Kul). |
Citation Information
OCR Text
And what has become of all the fine stuff, the dust inevitably given off in
such a colossal crumbling of the land? It is nearly absent from the surface, as,
indeed, it could not long remain on barren, wind-swept ground. The few inches
of loess found here and there below the ice and in tiny patches of grass along its
streams can not account for the dust of ages. It must be somewhere, and, if not
here, we must conclude that it was ever blown away by the storms that come
and go, blown away to settle in the grass of other, less arid, regions.
Around the lake we find evidence of its former wide expansions in beaches,
respectively 60, 120, and 200 feet above the present surface, and apparently one
at 320 feet nearly obliterated. The lower ones are comparatively fresh and indi-
cate but short existence at their levels. These expansions seem to correspond
in relative magnitude and antiquity to the moraines that now lie in front of various
surrounding valleys, and which are clearly divided into at least three glacial epochs,
and a fourth much more recent advance.
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