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0084 Explorations in Turkestan : Expedition of 1904 : vol.1
Explorations in Turkestan : Expedition of 1904 : vol.1 / Page 84 (Grayscale High Resolution Image)

Captions

[Figure] Physiographic history of the Anau Delta-oasis.

New!Citation Information

doi: 10.20676/00000178
Citation Format: Chicago | APA | Harvard | IEEE

OCR Text

 

TIME.

Preglacial.

Quaternary glacial period differentially recorded, with local epochs in mountain valleys according to uplift.

Reaction to extra dry climate.

P a r- tial recov- ery of preci- pita- tion.

Dry.

Recovery.

Dry.

vr~

ES?.

`J xu W::

Oscillating advance.

Quiet.   Old.

Slow rising, differentially, in blocks.

MOUNTAINS.

Young. Rapid dissection to deep valleys.

Slow dissection.

Quiet.

Active dislocation.

DISLOCATION ZONE, BORDER OF PLAINS.

Slow sinking as a whole.

Dry.

Recovery.

Slow dissection.

Less slow dissection.

Less slow dissection.

Slow dissection.

Less slow dissection.

Tilting border, buried in general rapid aggradation.

Rising of tilting border to form a dry piedmont transversely dissected by valleys.

Valley fills to —28 feet and continues filling to — 20 feet

Valley reexcavated to below-35 feet.

Valley filled again to — 12 feet.

Valley reexcavated.

Valley fills to — 15 feet and

th en overflows
with irrigation.

PLAINS.

Grass.

Desert.

Desert.

Grass.

Desert.

Aggrading rapidly with grass steppes over large areas, stationary sand-hills, and loess.

Aggradation slow Desert steppes. Moving sand.

Grass.

Culture-gap.

Foundation a n d growth of South Kurgan. Copper.

Iron.

Anau.

ARCHEOLOGY.

Evolution of Quaternary life over the steppes of Asia.

Primitive Man.

1Eneolithic Ma n founds North Kurgan.