Análisis de la dinámica del agua subterránea en el sistema acuífero complejo de Kazan Trona, Turquía, usando trazadores ambientales y gases nobles

Translated title of the contribution: Analysis of groundwater dynamics in the complex aquifer system of Kazan Trona, Turkey, using environmental tracers and noble gases

Sebnem Arslan, Hasan Yazicigil, Martin Stute, Peter Schlosser, William M. Smethie

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The Eocene deposits of Kazan Basin in Turkey contain a rare trona mineral which is planned to be extracted by solution mining. The complex flow dynamics and mixing mechanisms as noted from previous hydraulic and hydrochemical data need to be augmented with environmental tracer and noble gas data to develop a conceptual model of the system for the assessment of the impacts of the mining and to develop sustainable groundwater management policies throughout the area. The tracers used include the stable isotopes of water (δ2H, δ18O), δ13C and 14C of dissolved inorganic carbon (DIC), tritium (3H), the chlorofluorocarbons CFC-11 and CFC-12, and the noble gases He and Ne. The system studied consists of three aquifers: shallow, middle, and deep. CFC data indicate modern recharge in the shallow system. The estimates of ages through 14C dating for the deeper aquifer system are up to 34,000 years. Helium concentrations cover a wide range of values from 5 × 10−8 to 1.5 × 10−5 cm3 STP/g. 3He/4He ratios vary from 0.09RA to 1.29RA (where RA is the atmospheric 3He/4He ratio of 1.384 × 10−6), the highest found in water from the shallow aquifer. Mantle-derived 3He is present in some of the samples indicating upward groundwater movement, possibly along a NE–SW-striking fault-like feature in the basin.

Translated title of the contributionAnalysis of groundwater dynamics in the complex aquifer system of Kazan Trona, Turkey, using environmental tracers and noble gases
Original languageSpanish
Pages (from-to)175-194
Number of pages20
JournalHydrogeology Journal
Volume23
Issue number1
DOIs
StatePublished - Feb 2014
Externally publishedYes

Keywords

  • Complex aquifer system
  • Groundwater age
  • Helium isotopes
  • Stable isotopes
  • Turkey

ASJC Scopus subject areas

  • Water Science and Technology
  • Earth and Planetary Sciences (miscellaneous)

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