The Herzen State Pedagogical University
of Russia
KIM, YOUN-KI
Hydrogeological and Hydrogeochemical Characteristics of Groundwater in the South-Western area of Korea
Major
A Doctor dissertation
Academic advisers Professor Eugene M. Nesterov Professor Suck-Won Choi
CONTENTS
List of Figures............................................... ii
List of Tables................................................ ix
Chapter 1. The orientation and scope of study ................. 1
Chapter 2. Geology and geological structure ................... 3
2-1. Geology................................................. 3
2-1-1. Imsil area........................................... 3
2-1-2. Younggwang area...................................... 6
2-2. Geologic structure..................................... 10
2-2-1. Imsil area.......................................... 11
2-2-2. Younggwang area......................................14
Chapter 3. The hydrogeological characteristics ..............
of aquifer .......................................... 16
3-1. Drilling test...........................................16
3-1-1. Imsil area.......................................... 17
3-1-2. Younggwang area......................................30
3-2. In-insu permeability test.............................. 40
3-2-1. Imsil area.......................................... 41
3-2-2. Younggwang area......................................60
3-3. Pumping test........................................... 78
3-3-1. Imsil area.......................................... 80
3-3-2. Younggwang area......................................88
Chapter 4. The hydrochemistry of groundwater ................. 96
4-1 Introduction ............................................96
4-1-1. Sampling Procedure.................................. 96
4-1-2. Chemical Analyses................................... 97
4-2. Hydrochemistry of groundwater.......................... 98
4-2-1. Imsil area......................................... 101
4-2-2. Younggwang area.....................................134
4-3. Stable isotope study.................................. 160
Chapter 5. Evaluation of groundwater potential • • • 168
5-1. Imsil area............................................ 169
5-2. Younggwang area....................................... 173
Chapter 6. Conclusion ........................................180
References.................................................. 185
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Fig. 2-1. Geologic map of the Imsil anra
Geological Map
Alluvium I Dyke Diorite Volcanic* ScdirrifT<w> Rocks I Granite
Fotlaced Granite iLxmeituoc I Schist iQuortzitc I Gneiss IWmcy
X
2 0 2 4 6 Kilometers
(1) Gneiss complex
Gneiss complex occupies Mt. Wontong located southeastern part of area as a basement and near sinan-ri regionally, and mainly consists of granite gneiss and schistose gneiss.
Granite gneiss located Mt. Wontong is intuded by Jurassic granite, cretaceous acidic dykes, and is overlain by Cretaceous sedimentary rocks and extrusive volcanic rocks as a uncoformity.
(2) Metasedimentary rock
Metasedimcntary rock occupies Sungsu-myeon located south eastern part of study area as high lands, and shows long narrow belt from NNE to SSW direction devided foliated granite and biotite granite. Schist intcrbeded by limestone occupies around Imsil-eup located central part of the study area.
(3) Granites
Granites mainly consist of biotite and foliated granite. Biotite granite occupies south eastern part of the area and contain sparsely pinkish feldspars.
Foliated granite occupies southwestern part of the area and intrude metasedimentary rocks
(4) Sedimentary rocks
Sedimentary rocks consist of shale and fine to coarse sandstone and occupy northeastern part of the area.
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