The Role of Catastrophic Floods Generated by Collapse of Natural Dams Since the Neolithic in the Oases of Bukhara and Qaraqöl: Preliminary Results

Abstract : The history of the civilizations of the oases of Bukhara and Qaraqöl (southeastern Uzbekistan) since the Neolithic in relation to environmental changes is studied by the French/Uzbekistan Archaeological Mission in Bukhara 1 following pioneering Russian studies 2. Using a methodology tested in Afghanistan, the geoarchaeological side of the program focused on the drawing of a regional geomorphological map then on the identification, mapping and dating of the paleochannels of the river Zerafshan. We established the chronology of several generations of fluvial channels in relation to archaeological settlements of different eras (Early Neolithic, Neolithic, Bronze Age, Iron Age and Islamic period) and with optically stimulated luminescence dating of alluvial deposits. Based on preliminary results of these OSL dates we propose and discuss a regional environmental reconstruction. We hypothesize that the main cause of avulsion could be catastrophic floods generated by collapse of natural dams in the upper part of the Zerafshan River.
Document type :
Journal articles
Complete list of metadatas

Cited literature [35 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01471802
Contributor : Claude Vella <>
Submitted on : Monday, February 20, 2017 - 12:16:03 PM
Last modification on : Wednesday, July 17, 2019 - 3:38:02 PM
Long-term archiving on : Sunday, May 21, 2017 - 1:30:44 PM

File

Fouache et al, 2016.pdf
Publisher files allowed on an open archive

Identifiers

Citation

Eric Fouache, Rocco Rante, Djamal Mirzaakhmedov, Rachid Ragala, Malvina Dupays, et al.. The Role of Catastrophic Floods Generated by Collapse of Natural Dams Since the Neolithic in the Oases of Bukhara and Qaraqöl: Preliminary Results. International Journal of Geohazards and Environment , canamaple academia services, 2016, 2 (3), pp.150-165. ⟨10.15273/ijge.2016.03.015⟩. ⟨hal-01471802⟩

Share

Metrics

Record views

487

Files downloads

385