短報
韓国の主な地質における自然放射線
キーワード:
Korea,
geology,
natural radiation dose,
Geologic Time Street of Korea,
Korea Institute of Geoscience and Mineral Resources (KIGAM)
2017 年 67 巻 2 号 p. 111-116
詳細
2017 年 67 巻 2 号 p. 111-116
Dose equivalent rates at 47 major geologies in Korea were measured indirectly using big rock blocks displaying at “Geologic Time Street of Korea named as Nadeulgil” in Korea Institute of Geoscience and Mineral Resources (KIGAM). The dose equivalent rates at actual geologies were also measured for two sites among these 47 sites. True dose equivalent rates of actual geologic sites were obtained by equation with dose rates on the displaying rocks and the environmental dose at the displaying Geologic Time Street of Korea site of the KIGAM. Obtained results for the Precambrian gneissose area, the Paleozoic calcareous area, the Mesozoic granitic area and the Cenozoic volcanic area are 0.12 ~ 0.21 μSv/h, 0.01 ~ 0.04 μSv/h, 0.09 ~ 0.36 μSv/h and 0.04 ~ 0.06 μSv/h, respectively. The geographic distribution may be useful to evaluate natural environmental radiation in Korea and for tectonic comparison in geology.
