Geochemistry of groundwater from a rhyolite aquifer, Northwest Iran

  • S. Kurdehlachin
  • H. JafariEmail author
  • R. Bagheri
Original Article


Chemical data on groundwater composition in rhyolitic hard rock aquifers with limited global occurrence are rarely found. In this research geochemistry of Mahabad Rhyolite Aquifer, NW Iran, was studied considering major ions, silica and trace elements measured in wet and dry seasons. Based on the results, the mean silica content was 18 mg l−1, less than the average of the rhyolitic waters. However, the relatively higher electrical conductivity (EC) of 418 µS cm−1 was measured. Based on a PHREEQCI model, the weathering of the silicate minerals and dissolution of carbonated intercalations turns groundwater dominantly into Ca–HCO3 type, enhancing EC, pH and silica concentration along the flow path. Trace elements of Sr, Ba and Pb were measured at highest concentrations, the later with an average value of 83 ppb exceeds the drinking guidelines. Cluster analysis confirms biotite weathering and barite dissolution as the main sources of the trace elements in the groundwater. The results signify geochemical features of rhyolitic groundwater which can be a useful tracer of mixing in flow systems containing variety of aquifers including rhyolites.


Hydrogeochemistry Rhyolite aquifer Trace element Mahabad Iran 



The cooperation of the Shahrood University of Technology is highly acknowledged. The authors would like to thank any anonymous reviewers.


  1. Amadi AN, Aminu T, Okunlola IA et al (2015) Lithologic influence on the hydrogeochemical characteristics of groundwater in Zango, North-west Nigeria. Nat Resour Conserv 3:1Google Scholar
  2. Appelo CAJ, Postma D (2004) Geochemistry, groundwater and pollution. CRC Press, Boca RatonGoogle Scholar
  3. Ayuso RA, Foley NK (2016) Pb–Sr isotopic and geochemical constraints on sources and processes of lead contamination in well waters and soil from former fruit orchards, Pennsylvania, USA: a legacy of anthropogenic activities. J Geochem Explor 170:125–147CrossRefGoogle Scholar
  4. Banks D, Frengstad B (2006) Evolution of groundwater chemical composition by plagioclase hydrolysis in Norwegian anorthosites. Geochim Cosmochim Acta 70:1337–1355CrossRefGoogle Scholar
  5. Best MG (2013) Igneous and metamorphic petrology. Wiley, New YorkGoogle Scholar
  6. Custodio E (2007) Groundwater in volcanic hard rocks. Taylor & Francis, LondonCrossRefGoogle Scholar
  7. Daughney CJ, Reeves RR (2003) Definition of hydrochemical facies for New Zealand’s groundwaters using data from the National Groundwater Monitoring Programme. Institute of Geological & Nuclear Sciences, Lower HuttGoogle Scholar
  8. Drever JI (1988) The geochemistry of natural waters. Prentice Hall, Englewood CliffsGoogle Scholar
  9. Edmunds WM, Shand P (2008) Natural groundwater quality. Wiley Online Library, New YorkCrossRefGoogle Scholar
  10. Edmunds WM, Carrillo-Rivera JJ, Cardona A (2002) Geochemical evolution of groundwater beneath Mexico City. J Hydrol 258:1–24CrossRefGoogle Scholar
  11. Eftekharnezhad J (1980) Explanatory report for the quadrangle map 1:250,000 (north kurdistan). Geological Survey of Iran, TehranGoogle Scholar
  12. Freeze RA, Cherry JA (1979) Groundwater. Prentice-Hall, Inc., Englewood CliffsGoogle Scholar
  13. Ghorbani M (2013) The economic geology of Iran: mineral deposits and natural resources. Springer Science & Business Media, BerlinCrossRefGoogle Scholar
  14. Goldich SS (1938) A study in rock-weathering. J Geol 46:17–58CrossRefGoogle Scholar
  15. Hem JD (1985) Study and interpretation of the chemical characteristics of natural water. Department of the Interior, US Geological Survey, RestonGoogle Scholar
  16. Hounslow A (1995) Water quality data: analysis and interpretation. CRC Press, Boca RatonGoogle Scholar
  17. Johannesson KH, Cortés A, Ramos Leal JA, Ramírez AG, Durazo J (2005) Geochemistry of rare earth elements in groundwaters from a rhyolite aquifer, central México. In: Johannesson KH (ed) Rare earth elements in groundwater flow systems, Water science and technology library, vol 51. Springer, Dordrecht, pp 187–222CrossRefGoogle Scholar
  18. Kurdehlachin S (2017) Hydrogeochemistry of the hard rocks in the east of Mahabad. M.Sc. thesis, Shahrood university of Technology, Iran (in Persian) Google Scholar
  19. Langmuir D (1997) Aqueous environmental geochemistry. Prentice-Hall, Inc., Upper Saddle RiverGoogle Scholar
  20. Le Maitre RW, Streckeisen A, Zanettin B et al (2005) Igneous rocks: a classification and glossary of terms: recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks. Cambridge University Press, CambridgeGoogle Scholar
  21. Mahlknecht J, Steinich B, De León IN (2004) Groundwater chemistry and mass transfers in the Independence aquifer, central Mexico, by using multivariate statistics and mass-balance models. Environ Geol 45:781–795CrossRefGoogle Scholar
  22. Mazor E (2003) Chemical and isotopic groundwater hydrology. CRC Press, Boca RatonCrossRefGoogle Scholar
  23. Mohan SV, Nithila P, Reddy SJ (1996) Estimation of heavy metals in drinking water and development of heavy metal pollution index. J Environ Sci Heal Part A 31:283–289CrossRefGoogle Scholar
  24. Parkhurst DL, Appelo CAJ (1999) User’s guide to PHREEQC (Version 2): a computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations. US Geological Survey, DenverGoogle Scholar
  25. Pazand K, Khosravi D, Ghaderi MR, Rezvanianzadeh MR (2018) Hydrogeochemistry and lead contamination of groundwater in the north part of Esfahan province, Iran. J Water Health 16:622–634Google Scholar
  26. Pelig-Ba KB, Biney CA, Antwi LA (1991) Trace metal concentrations in borehole waters from the Upper Regions and the Accra Plains of Ghana. Water Air Soil Pollut 59:333–345CrossRefGoogle Scholar
  27. Prasad B, Bose J (2001) Evaluation of the heavy metal pollution index for surface and spring water near a limestone mining area of the lower Himalayas. Environ Geol 41:183–188CrossRefGoogle Scholar
  28. Rango T, Bianchini G, Beccaluva L, Tassinari R (2010) Geochemistry and water quality assessment of central Main Ethiopian Rift natural waters with emphasis on source and occurrence of fluoride and arsenic. J Afr Earth Sci 57:479–491CrossRefGoogle Scholar
  29. Rice EW, Bridgewater L, Association APH et al (2012) Standard methods for the examination of water and wastewater. American Public Health Association, WashingtonGoogle Scholar
  30. Shahbazi H (1999) Petrological, geochemical and petrofabric study of older rhyolitic and granitic of Mahabad-Bukanitle. Tehran University, TehranGoogle Scholar
  31. Singhal BBS, Gupta RP (2010) Applied hydrogeology of fractured rocks. Springer Science & Business Media, BerlinCrossRefGoogle Scholar
  32. Tamasi G, Cini R (2004) Heavy metals in drinking waters from Mount Amiata (Tuscany, Italy). Possible risks from arsenic for public health in the Province of Siena. Sci Total Environ 327:41–51CrossRefGoogle Scholar
  33. Tweed SO, Weaver TR, Cartwright I (2005) Distinguishing groundwater flow paths in different fractured-rock aquifers using groundwater chemistry: Dandenong Ranges, southeast Australia. Hydrogeol J 13:771–786CrossRefGoogle Scholar
  34. Wang Y, Wang P, Bai Y et al (2013) Assessment of surface water quality via multivariate statistical techniques: a case study of the Songhua River Harbin region, China. J Hydro Environ Res 7:30–40CrossRefGoogle Scholar
  35. White DE, Hem JD, Waring GS (1963) Chemical composition of subsurface waters. USGS, WashingtonCrossRefGoogle Scholar
  36. White AF, Schulz MS, Lowenstern JB et al (2005) The ubiquitous nature of accessory calcite in granitoid rocks: implications for weathering, solute evolution, and petrogenesis. Geochim Cosmochim Acta 69:1455–1471CrossRefGoogle Scholar
  37. WHO (2011) Guidelines for drinking-water quality, forth edition. WHO Chron 38:104–108Google Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Faculty of Earth SciencesShahrood University of TechnologyShahroodIran

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