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Comparison of MIS 5e Marine Terraces between the Eastern Coast of Korea and Ajigasawa Coast of the Western Tsugaru Area of Northeastern Japan

  • Journal of the Association of Korean Geographers
  • Abbr : JAKG
  • 2015, 4(2), pp.217-229
  • Publisher : Association of Korean Geographers
  • Research Area : Social Science > Geography

Seong-Gil Choi 1 Naoto Koiwa 2

1공주대학교
2일본 히로사키대학

Candidate

ABSTRACT

The comparative study of MIS 5e marine terraces between the eastern coast of Korea and Ajigasawa coast of the western Tsugaru area of northeastern Japan was done to clarify the geomorphological charateristics of MIS 5e marine terrace of the eastern coast of Korea. The heights of paleoshoreline altitudes of MIS 5e marine terraces of the western Tsugaru coast of northeastern Japan are distributed from 15 meters (eastern area) to 160 meters (western area) above sea level, but those of the eastern coast of Korea are distributed at almost similar level of about 18 meters a.s.l. This difference of height distribution of paleoshoreline altitudes between the eastern coast of Korea and the western Tsugaru coast of Japan reveals that the characteristics of tectonic movement of these two regions have been different. The above-mentioned height distribution of paleoshoreline altitudes means that the western Tsugaru coast of Japan belongs to the present mobile belt, whereas the eastern coast of Korea belongs to stable landmass. The soil color of MIS 5e marine terraces of the eastern coast of Korea is redder than that of Ajigasawa coast of the western Tsugaru area of northeastern Japan. This fact reveals that the climate of the formation period and after of MIS 5e marine terrace of the eastern coast of Korea was warmer than that of Ajigasawa coast of the western Tsugaru area of northeastern Japan.

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