Environmental impact and drainage geochemistry in the vicinity of the Harput Pb-Zn-Cu veins, Elazığ, SE Turkey
Çalışmanın amacı, cevherleşmelerin jeokimyasal prospeksiyon çalışmalarına katkısını ve çevresel etkisini incelemektir. Bu nedenle kaynak sularda ana, iz ve nadir toprak elementleri (NTE), dere kumlarında ise ana ve iz element derişimleri incelenmiştir. Bu amaçla, ceherleimelere yakın, Köprücük, Çolaklı, Kabakçılar ve Ekinli civarından toplam 21 kaynak suyu örneği alındı. Kızıldağ, Kurt, Karacalar ve Billurik Dereden toplam 57 örnek üç farklı tane boyu (-80 +140, -140 +200 and -200 mesh) ICP-MS (inductively coupled plasma-mass spectroscopy) ve IE (ion electrode) yšntemi ile analiz edildi. Kaynak suları, element içerikleri tavsiye edilebilir içme suyu standartları ile karşılaştırılmış ve Al, Ba, Br, Fe, K, Mn, Na, Pb, SO4, U ve F içeriklerinin, dere kumu örneklerinde ise Mo, Pb, Zn, As, U ve Ca medyan değerleri kıtasal kabuktaki ortalama element ieçriklerinden yüksek olduğu, As, değerinin ise bölgedeki granitik kayaçlardaki ortalama değerden birkaç kat daha yüksek olduğu belirlenmiştir. Bunun yanında dere kumlarındaki element içeriklerinin ince taneli (-200 mesh) boyutta zenginleştiği saptanmıştır. Korelasyon katsayısı incelemelerinde NTE ile pH arasında ters, SO4, Fe, Al arasında anlamlı pozitif ilişki gözlendi. Sonuç olarak gerek kaynak sulardaki element derişimleri ve gerekse dere kumlarının farklı tane boyu fraksiyonlarındaki element dağılımlarının jeokimyasal incelemelerinde ve bu bšlgelerde metal kirliliğinin belirlenmesinde yararlı olabileceği düşünülmektedir.
GD Türkiye Harput (Elazığ) civarı Pb-Zn-Cu damarlarının drenaj jeokimyası ve çevresel etkileri
The aim of this study was to examine the environmental impact of major, minor and rare-earth elements (REE) in spring waters and major and minor elements in stream sediments proximal to known vein-type Pb-Zn- Cu ores. Accordingly, a total of 21 water samples were collected from natural springs in the Köprücük, Çolaklı, Kabakçılar ve Ekinli areas where ore-bearing rocks are widely exposed. Stream-sediment samples were taken from the Kurt, Kızıldağ and Karacalar and Billurik streams, and a total of 57 samples were sieved to three different size fractions (-80 +140, -140 +200 and -200 mesh) and analyzed by ICP-MS and IE methods. The concentrations of Al, Ba, Br, Fe, K, Mn, Na, Pb, SO4, U and F in the spring waters are higher than the values recommended as the maximum allowable levels in drinking waters. In the stream-sediment samples, the -200 mesh fraction yielded Mo, Pb, Zn, As, U and Ca contents higher than the world average crustal composition; moreover, metal contents were found to be generally elevated in this stream-sediment size fraction. As values, in particular, are several times higher than the mean values for granitic rocks of the region. In correlation coefficient studies of the spring waters, it was observed that the REE are inversely related to pH and significantly positively related to SO4, Fe and Al. Consequently, it is concluded that the concentrations of several major and minor elements and REE in the spring waters, and the distribution of elements in the different size fractions of the stream sediments, can be utilized both in geochemical prospecting and in identifying high risk areas for metal pollution.
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- AKÇAY, M. & TÜYSÜZ, N. 1997. Lateral distribution of heavy elements from the Murgul Cu deposit and their impact on environmental pollution. Geosound 30, 725-741 [in Turkish with English abstract]. BOURDON, B., TURNER, S., HENDERSON, G.M. & LUNDSTROM, G.M. 2003. Introduction to Uranium-series geochemistry. Reviews in Mineralogy and Geochemistry 52, 1-21.
- DAUVALTER V. & ROGNERUD, S. 2001. Heavy metal pollution in sediments of the Pasvik river drainage. Chemosphere 42, 9-18.
- DORRONSORO, C., MARTIN, F., ORTIZ, I., GARCIA, I., SIMON, M., FERNANDEZ, E., AGUILAR, J. & FERNANDEZ, J. 2002. Migration of trace elements from pyrite tailings in carbonate soils. Journal of Environmental Quality 31, 829-835.
- FAURE, G. 1998. Principles and Applications of Geochemistry (2nd edition). Prentice Hall, Upper Saddle River, New Jersey. FREEZE, R.A. & CHERRY J.A. 1979. Groundwater. Prentice Hall, Englewood Cliffs, New York.
- GALAN, E., GOMEZ-ARIZA, J.L., GONZALEZ, I., FERNANDEZ-CALIONI, J.C., MORALES, E. & GIRALDEZ I. 2003. Heavy metal partitioning in river sediments severely polluted by acid mine drainage in the Iberian Pyrite Belt. Applied Geochemistry 18, 409-421.
- GOSSELIN, D.C., SMITH, M.R., LEPEL, E.A. & LAUL, J.C. 1992. Rare earth elements in chloride-rich groundwater, Palo Duro Basin, Texas, USA. Geochimica et Cosmochimica Acta 56, 1495-1505.
- JANSSEN, R.P.T & VELWEIJ, W. 2003. Geochemistry of some rare earth elements in groundwater, Vierlingsbeek, The Netherlands. Water Research 37, 1320-1350.
- KALENDER, L. & BÖLÜCEK, C. 2004. Major and trace element contamination of groundwaters, stream sediments and plants of the abandoned mines in Keban district (Elazığ) of eastern Anatolia, Turkey. 57th Geological Congress of Turkey, Ankara, Abstracts, p. 187.
- KALENDER, L. & HANELÇİ, Ş. 2004. General features of copper mineralization in the Eastern Euphrates, Keban-Elazığ Area, Turkey. Journal Geological Society of India 64, 655-665.
- KRAUSKOPF, K.B. 1989. Introduction to Geochemistry (2nd edition). McGraw-Hill, London.
- LEY, 18284. Cordigo Alimentario Argentino (1969) Sancionady Promulgada el 18/7/69. B.O 28/7/69. Modificacion 1988, Modificacion 1994, Buenos Aires, Argentina.
- MARCOS, N. 2002. Low-temperature mobility of rare earth elements (REE), U, and Th at the Olkiluoto Site, SW Finland. Material Research Society Symposium, p. 713.
- MARTIN, A.J. & CALVERT, S.E. 2003. Hydrological and geochemical controls governing the distribution of trace metals in a mineimpacted lake. Environmental Geology 43, 408-418.
- ÖZDEMİR, Z. & SAĞIROĞLU, A. 2000. Salixacmophylla, Tamarix Smyrnensis and Phrogmites australis as biogeochemical indicators for copper deposits in ElazõÛ, Turkey. Journal of Asian Earth Sciences 18, 595-601.
- ROSE, A.W., HAWKENS, H.E. & WEBB, J.S. 1979. Geochemistry in Mineral Exploration (2nd edition). Academic Press, London.
- ŞAŞMAZ, A. & SAĞIROĞLU, A. 2004. Mineralogy and geochemistry of the argentiferous Pb-Zn and Cu veins of the ‚olaklõ area, Elazığ, eastern Turkey. Journal of Asian Earth Sciences 23, 37-45.
- SHOU, Y.Y., JUNG, S.H., CHOI, S.M & LI, X.C. 2002. The rare element compositions of the Changjiang (Yangtze) and Huange (Yellow) river sediments. Earth Planetary Science Letters 201, 407-419.
- SUJATHA, D. 2003. Fluoride levels in the groundwater of the southeastern part of Ranga Reddy district, Andhra Pradesh, India. Environmental Geology 44, 587-591.
- TÜYSÜZ, N., AKÇAY, M & TÜFEKÇİ, M. 1997. Water pollution from the Lahanos mine (Espiye-Giresun, NE Turkey): Implications on its effects on the water supplies of the town of Espiye. Geoenv '97, Abstracts, 1-5 September 1997, İstanbul, Turkey, p. 40.
- UNITED STATES ENVIRONMENTAL PROTECTION AGENCY (USEPA) 1980. Part V, Water Quality Criteria Documents, Availability. _____http://www.epa. gov/safewater/mcl.html#mcls> 2005
- UNITED STATES ENVIRONMENTAL PROTECTION AGENCY (USEPA) 2000. Groundwater and Drinking Water: List of Drinking Water Contaminants & MCLs. _____http://www.epa.gov/safewater/ mcl.html#mcls> 2005
- WEDEPOHL, K.H. 1978. Handbook of Geochemistry, Volume 5. Springer, Berlin.
- WINE, F. & WALT, I.J. 2004. The significance of groundwater-stream interactions and fluctuating stream chemistry on waterborne uranium contamination of streams - a case study from a gold mining site in South Africa. Journal of Hydrology 287, 178-196.