...
0142
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Eolian
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sand,
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Mongolia
Location:
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Zuun
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mod
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Elstei,
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50
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km
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east
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of
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Ulaanbaatar,
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Mongolia;
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E
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107°28'55.1";
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N
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47°47'27.5"
...
...
Provenance:
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Mix of (1)
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granitoid
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plutonic
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rocks
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and
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(2)
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low-medium-grade
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metasedimentary
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(schist,
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marble)
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and
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possibly
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metavolcanic
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rocks.
...
Composition:
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Mix of
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translucent
...
-
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transparent
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quartz
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with
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pink
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feldspar,
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white
...
marble
...
and
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grey-green
...
low-grade
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metamorphic
...
rocks
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(schists);
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possibly
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also
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higher-grade
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metamorphic
...
rocks
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involved.
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Few heavy
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minerals,
...
including
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garnets.
...
...
Texture:
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Characteristic eolian texture: Medium grained (mL-MU;
...
mean
...
ca.
...
350
...
µ),
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well
...
sorted,
...
depending
...
on
...
mineralogy
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poorly
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to
...
well
...
rounded.
...
Characteristic
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polished,
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matted
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("frosted")
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grain
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surfaces
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typical
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of
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eolian
...
transport.
...