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Karstic spring wetlands of the Persepolis Basin, southwest Iran; unique sediment archives of Holocene environmental change and human impacts

Morteza Djamali, Sebastien Gondet, Javad Ashjari, Cyril Aubert, Elodie Brisset, Julien Longerey, Nick Marriner, Marjan Mashkour, Naomi F. Miller, Abdolmajid Naderi-Beni, Majid Pourkerman, Elnaz Rashidian, Jean-Baptiste Rigot, Sonia Shidrang, Alain Thiery and Emmanuel Gandouin
Karstic spring wetlands of the Persepolis Basin, southwest Iran; unique sediment archives of Holocene environmental change and human impacts
Canadian Journal of Earth Sciences = Revue Canadienne des Sciences de la Terre (October 2018) 55 (10): 1158-1172

Abstract

Palustrine carbonates are frequently found with active and dried karstic springs in the foothills of the mountains bordering the Persepolis Basin, southwest Iran. A combination of geological conditions favours their formation, including (i) the presence of karstic limestone aquifers in the limbs of anticlines cut through by fault systems; (ii) very gentle slopes from the spring resurgence point towards the centre of the alluvial plain, creating a flat waterlogged area; and (iii) a semiarid climate with marked precipitation seasonality or significant fluctuations in water discharge and wetland water table. We suggest the term "anastomosing wetlands" or "anastomosing palustrine environments" to denote the studied karstic spring-fed carbonate wetlands, because of similarities with anastomosing river systems in aerial view. The common presence of extended anastomosing wetland carbonates in the Persepolis Basin and adjacent basins in the central and southern Zagros suggests that they can play an important role in the geological records of collision-related basin-and-range settings dominated by karstic limestones. Karstic spring wetlands are a main source of fresh water hosting a rich biodiversity, which attracts human communities, whose impact is visible in the archaeological material imbedded in the wetland stratigraphy. Fresh water availability, through these spring wetlands, partly explains why the semiarid Persepolis region was selected by successive civilizations, from Elamites to Persians until early Islamic entities, to establish regional centres throughout the period from the third millennium B.C. to the first millennium A.D. Only a few of these ecosystems have survived the intensive human activities of recent decades.


ISSN: 0008-4077
EISSN: 1480-3313
Coden: CJESAP
Serial Title: Canadian Journal of Earth Sciences = Revue Canadienne des Sciences de la Terre
Serial Volume: 55
Serial Issue: 10
Title: Karstic spring wetlands of the Persepolis Basin, southwest Iran; unique sediment archives of Holocene environmental change and human impacts
Affiliation: Aix Marseille Universite, Institut Mediterraneen de Biodiversite et d'Ecologie, Aix-en-Provence, France
Pages: 1158-1172
Published: 201810
Text Language: English
Summary Language: French
Publisher: National Research Council of Canada, Ottawa, ON, Canada
References: 79
Accession Number: 2019-003587
Categories: Quaternary geologyGeochronology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. strat. cols., 2 tables, geol. sketch maps
N29°40'00" - N30°15'00", E52°28'60" - E53°30'00"
Secondary Affiliation: Universite de Lyon, FRA, FranceAbanrood Consulting Company, IRN, IranUniversitat Rovira i Virgili, ESP, SpainUniversite de Franche-Comte, FRA, FranceMuseum National d'Histoire Naturelle, FRA, FranceUniversity of Pennsylvania, USA, United StatesIranian National Institute for Oceanography and Atmospheric Sciences, IRN, IranJohann Wolfgang Goethe-Universitaet Frankfurt am Main, DEU, GermanyUniversite de Tours, FRA, FranceKashan University, IRN, Iran
Country of Publication: Canada
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data from Canadian Science Publishing, NRC Research Press, Ottawa, ON, Canada. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201902
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