Econ. Environ. Geol. 2002; 35(2): 163-170

Published online April 30, 2002

© THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY

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

Hyoung Chan Kim1*, Saro Lee2 and Moo Young Song3

1Department of Environmental Geology, Korea Institute of Geoscience and Mineral Resources, 30, Kajeong-dong, Daejeon 305-350, Korea
2National Geoscience Information Center, Korea Institute of Geoscience and Mineral Resources, 30, Kajeongdong, Daejeon 305-350, Korea

3Department of Geology, Chongnam National Unv., Taejon, Korea

Correspondence to :

Hyoung Chan Kim

khc@kigam.re.kr

Received: August 17, 2002; Accepted: April 26, 2002

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 between 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 gradient of South Korea is 29.34℃/km. In the geologic sequence, Cenozoic strata has 39.70℃/km, Mesozoic strata has 30.63℃/km, Paleozoic strata has 22.32℃/km, Proterozoic strata has 23.15℃/km, and Archean strata has 24.34℃/km geothermal gradient value. In the lithological aspect, plutonic rocks have 33.96/km, sedimentary rocks have 24,78℃/km and sedimentary and volcanic rocks have 26.85℃/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

Article

Econ. Environ. Geol. 2002; 35(2): 163-170

Published online April 30, 2002

Copyright © THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY.

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

Hyoung Chan Kim1*, Saro Lee2 and Moo Young Song3

1Department of Environmental Geology, Korea Institute of Geoscience and Mineral Resources, 30, Kajeong-dong, Daejeon 305-350, Korea
2National Geoscience Information Center, Korea Institute of Geoscience and Mineral Resources, 30, Kajeongdong, Daejeon 305-350, Korea

3Department of Geology, Chongnam National Unv., Taejon, Korea

Correspondence to:

Hyoung Chan Kim

khc@kigam.re.kr

Received: August 17, 2002; Accepted: April 26, 2002

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 between 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 gradient of South Korea is 29.34℃/km. In the geologic sequence, Cenozoic strata has 39.70℃/km, Mesozoic strata has 30.63℃/km, Paleozoic strata has 22.32℃/km, Proterozoic strata has 23.15℃/km, and Archean strata has 24.34℃/km geothermal gradient value. In the lithological aspect, plutonic rocks have 33.96/km, sedimentary rocks have 24,78℃/km and sedimentary and volcanic rocks have 26.85℃/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

    KSEEG
    Apr 30, 2024 Vol.57 No.2, pp. 107~280

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