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Relationship Analysis between Lithology, Geological time and Geothermal Gradient of South Korea  

김형찬 (한국지질자원연구원 환경지질연구부)
이사로 (한국지질자원연구원 국가지질자원정보센터)
송무영 (충남대학교 지질학과)
Publication Information
Economic and Environmental Geology / v.35, no.2, 2002 , pp. 163-170 More about this Journal
Abstract
The purpose of this study is to analyze the relationship between geology and geothermal gradient in South Korea using GIS. For the analysis, 352 temperature logging wells were constructed to spatial database and the relationships beween geothermal gradient and geological time and lithology were analyzed using the overlay the wells layer and 1:1,000,000 scale geological map layer. The average of the geothermal aradient of South Korea is 29.34$^{\circ}C$/km. In the geologic sequence, Cenozoic strata has 39.7$0^{\circ}C$/km, Mesozoic strata has 30.63$^{\circ}C$/km , Paleozoic strata has 22.32$^{\circ}C$/km, Proterozoic strata 23.15$^{\circ}C$/km geothermal gradient value. In the lithological aspect, plutonic rocks 33.96$^{\circ}C$/km, sedimentary rocks have 24.78$^{\circ}C$/km and sedimentary and volcanic rocks have 26.85$^{\circ}C$/km geotermal gradient value. The result can be used to develop geothermal energy and hot spring as a reference.
Keywords
geological time; lithology; geotermal; geothermal gradient; GIS;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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