日本地球惑星科学連合2019年大会

講演情報

[J] ポスター発表

セッション記号 S (固体地球科学) » S-GL 地質学

[S-GL28] 地域地質と構造発達史

2019年5月27日(月) 15:30 〜 17:00 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:大坪 誠(産業技術総合研究所 活断層・火山研究部門)、細井 淳(産業技術総合研究所地質調査総合センター地質情報研究部門)

[SGL28-P08] Preliminary Analysis Result for the Integrated Lineament Map in South Korea

*Hong-Jin Lee1Kyoungtae Ko2You Hong Kihm2 (1.Geoscience Platfrom Division, Korea Institute of Geoscience and Mineral Resources、2.Geology Division, Korea Institute of Geoscience and Mineral Resources)

キーワード:geological lineament, integrated map, density map

The geological lineament reflects the characteristics of various geological parameters and scale etc. In order to obtain more reliable analysis results, it is necessary to integrate the results from several experts’ opinions. In this study, we used previous lineament data in the Korean Peninsula from the Korea Institute of Geoscience and Mineral Resources (KIGAM) and obtained new lineament data from the field geologists such as structural geologist, paleoseismologist, and geomophologist. To ensure the reliability of the newly lineament analysis data, we used high-resolution satellite images and hill-shade relief maps which were constructed by a digital elevation model from the National Geographic Information Institute of Korea (NGII). In the prevailing direction analysis from the acquired lineament data, the NNE-SSW direction was the most dominant, but the ENE-WSE and NNW-SSE directions also showed highly frequency depending on the experts. Different lineament analysis results based on the same data are interpreted as a result of subjective experience and analytical criteria from each expert. Therefore, it is necessary to establish integrated criteria and consider various geographical data for the publication of reliable nation-wide lineament map.