Relation Between Hydrodynamics of Gokpinar Springs and Fault Zones Denizli –Turkey
In this study, it is aimed to determine the relation between the hydrodynamics of the Gokpinar and Derindere
drinking water springs and fault mechanisms in the east of Denizli city center. These springs with average 1,211 m3/s
discharges are the most contributing springs to Denizli city center drinking water. These waters do not require any treatment
to meet drinking water standards. This area, which has high ground water capacity, also has high earthquake activity. The
intense tectonic forces and active faults that control the regional morphology also play a major role in the formation of natural
water springs. There are geological units which have differences in lithology, origin and hydrogeology in the drainage basins
of the springs. Within these units, whose original characteristics are generally heterogeneous and anisotropic, weak zones and
discontinuities have been formed due to the effects of tectonic stresses over time. This discontinuities, hydrogeologically,
mean secondary porosity and high permeability and contribute significantly to the groundwater movement, especially near the
main faults. The groundwater movement in the basin and the spring yields depend on the size and location of the tectonic
discontinuities rather than the primary porosity of the units. Nearly all of the springs in the region are in the "tectonic springs"
class. Along the slopes of the mountainous areas within the basin are many large and small springs. The majority of the water
springs in the study area are located at the intersection of fault zones. The best examples are Gokpınar and Derindere springs.
Index Terms— Denizli, Gokpinar, Derindere, Groundwater.