Early Holocene Paleoenvironmental changes in North of Gavkhouni Swamp- East of Isfahan-Iran: a review of evidence from palynology

Document Type : Research Paper

Authors

1 Department of Mining Engineering,Isfahan University of Technology,Isfahan,Iran

2 Department of Soil Science,Agriculture College,Isfahan University of Technology,Isfahan,Iran

Abstract

This study was conducted for palynological investigation of recent deposits from east Isfahan in order to reconstruct past environmental conditions of this region. Segzi area is located in 30 km east Isfahan and Rangideh area is 65 km in south east Isfahan. In these areas it was seen, in depth of soil profile, dark layers containing organic matters. Soil samples were taken from five points and different depth of profiles and after preparation, palynological studies were conducted on them. The results of Palynological and Paleontological investigations on Segzi area indicated presence of different aquatic plants species and also shell of gastropods.The results showed that this region during cold and semi-glacial periods of young Dryas had received higher level of water than present due to increased effective moisture and has formed a swamp. Palynological studies on buried Rangideh paleosols show microfossils such as Dinoflagellate and Micrysteridium which indicated lake and marine environments. The Rangideh was influenced by further water of Gavkhouni, compared to Segzi area.

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Article Title [Persian]

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History

  • Receive Date: 26 December 2016
  • Revise Date: 02 October 2018
  • Accept Date: 06 October 2018

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