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ENVIRONMENTAL ISOTOPIC INVESTIGATION OF TUNÇBILEK COAL MINE AREA
ABSTRACT
(TAVŞANLI-KÜTAHYA)
This study is as a part of hydrogeological investigation to drain groundwater into the Ömerler
underground coal mine which is operated by Western Lignite Corp. (GLİ). The hydrogeological
investigation was performed for General Directorate of Mineral Research and Exploration in the
name of Turkish Coal Corp. between 2004 to 2006.
Different lithologic units from Paleozoic to Quaternary age are cropped out in the study area. The
Paleozoic is represented by metamorphic rocks and Upper Cretaceous units are characterized by
ultramafic rocks and mélange. Tertiary units are granite, basalt, limestone, marl, silt, sandstone,
conglomerate and coal. Sandstone, conglomerate and limestone layers in Tertiary rocks are
permeable, marls between coal layers are semi-permeable.
δ 2 H, δ 18 O and 3 H isotope analyses were performed on samples collected from springs, monthly
basis precipitation, stripped lakes and underground coal mine and only δ 34 S-SO4 and δ 18 O-SO4
samples were collected high sulfate content underground coal mine, springs and stripped lakes.
Local meteoric line was determined to have an equation of δ 2 H=8*δ 18 O+15.8. Most of the
groundwater samples indicate that evaporation process has a dominant effect on the fresh
groundwater in the basin. The groundwater emerging during the excavation in the underground coal
mine was formed with mixture between the recent precipitation and thermal waters which were
infiltrated under climate conditions colder than today.
Key Words: Tunçbilek coals, environmental isotope, paleowater.
1. GİRİŞ
İnceleme alanı, kuzeyde Gürgenyayla tepe ve Eğridere tepe, batıda Sarıot ve Bozbelen, güneyde
Hamitabat köyü, doğuda ise Domaniçkozluca ve Domaniçkaraköy köyleri ile sınırlanmaktadır.
Çalışma alanı yaklaşık 280 km 2 ‘dir. Tunçbilek, Kütahya’ya 60 km, Tavşanlı’ya ise 10 km
uzaklıktadır (Şekil 1).
Türkiye Kömür İşletmeleri Genel Müdürlüğü’ne bağlı Garp Linyitleri İşletme Müdürlüğü
Tunçbilek kömür sahasında yeraltı işletmeciliği yapılmaktadır. İşletme bölgesi içinde, Ömerler A
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