韓反島 中部東海岸 低位海成段丘의 對比와 編年

The comparison and chronology of the lower marine terraces in the mid-eastern coast of Korean peninsula

  • 최성길 (공주대학교 사범대학 지리교육과) ;
  • 발행 : 1995.06.01

초록

제4기 후기에 있어서도 지반의 지속적인 융기가 진행되고 있는 것으로 보이는 한국 의 동해안에 있어서는, 어느 한 간빙기 해성면의 동정이 이루어질 경우, 이 지형면을 시간기 준면으로 한 제4기 해성면 전체의 대비와 편년도 가능하다고 생각된다. 한국의 동해안에 있 어서 시간기준면으로 이용 될 수 있는 지형면은, 단구면과 퇴적물의 특징이 가장 잘 보존되 어 있을 것으로 보이는 최종간빙기의 해수면이라고 생각된다. 본고에서는 한반도의 중부 동 해안에 있어서 최종간빙기의 해수면을 확정하기 위한 작업의 일환으로, 단구면의 구정선고 도, 단구퇴적물의 특징, 그리고 고토양 및 화석 주빙하결빙구조 등을 지표로, 묵호-강릉해안 에 분포하는 저위해성단구의 대비와 상대편년을 시도하였다. 연구의 결과, 저위해성단구 I면 은 최종간빙기 극상기(산소 동위체 스테이지 5e), 그리고 II면은 최종간빙기의 중반(5c) 혹은 후기(5a)의 지형면으로 편년되었다. 이는 최종간빙기의 해성면을 I면 밖에 인정하지 않은 기 존의 연구결과와 다른 점으로서, 추후 이에 대한 상세한 검토가 요청된다. 저위해성단구 I면 과 II면의 구정선고도는 각각 18m, 10m이며, 이중에서도 저위해성단구 I면은 분포의 보편성 으로 보아 한국 동해안의 제4기 지사편집시 시간기준면으로서의 이용가치가 크다고 생각된 다.

This Paper aims to compare the lower marine terraces distributed from Muckho to Gangneung in the mid-eastern coast of Korean peninsula by the geomorphic method of using characteristies of terrace features and terrace deposits, paleosol, and fossil cryogenic structures, and to estimate the age of the lower marine terraces on the basis of the comparisons of those with the characteristics of thalassostatic terrace in adjacent rivers. The 1ower marine terraces in this area can be classified into two levels, i.e., lower marine terrace I and II surfaces, in desending order, according to the difference of former shoreline altitude. The former shoreline heights of the lowerm marine terrace I and II surfaces are 18m and 10m, respectiveiy. The width of the I surface is broader and distributed more continuousiy than that of II surface. Daejin I surface in Muckho coast, and Myeongju and Anin terrace in Gangneung coast could be classified into the lower marine terrace I surface, and Daejin II surfaCe into II surface. The Surface of ancient shore platform of the lower marine terrace I and II surfaces were weathered, and the color of the terrace deposit ranges from red to reddish brown. And this terrace deposit is covered with slope deposit of Last Glacial or fossil periglacial structures (platy structure and vecicle) of Last Glacial are formed in terrace deposit. These facts indicate that the lower marine terrace I and II surfaces had been formed before the Last Glacial, and then affected by chemical weathering under warm environment, finally followed by cold period. But the deposit of the lower marine terrace I surface is more weathered than that of II surface. And pseudogleyed red soil, which is developed in I but not in II surface, could be judged to have been formed in the Last Interglacial culmination stage (Oxygen isotope stage 5e). Therefore, in terms of the degree of weathering of the terrace deposit and the existence of pseudogleyed red soil, the age of both terrace is thought to be a little different. And the characteristics of the above mentioned II surface are accord with those of thalassostatic terrace formed in middle or late period of the Last Interglacial (5e or 5a). Thus on the basis of above all points, the lower marine terrace I and II surfaces in this area could be seen to have formed in the Last Interglacial culmination stage and middle or late period of the Last Interglacial, respectively. Because the lower mamine terrace I surface is broadry distributed in the eastern coast of Korea nPeninsula, the surface could be used to be a key surface in studying Quaternary marine terraces.

키워드

참고문헌

  1. 闕東大學 論文集 v.9 韓國의 主要成因的 土壤型에 關한 硏究 姜永福
  2. 地理學論叢 no.4 韓半島 花崗岩 風化層에 發達한 第 4 紀 後半의 周氷河結氷構造에 關한 硏究 權純植
  3. 地理學論叢 v.6 巨濟島의 周氷河堆積物 權純植
  4. 高麗大 敎育大學院 敎育論叢 v.3 韓國의 海岸地形과 海岸分類의 諸問題 權赫在
  5. 高麗大 師大論叢 v.6 泰安半島와 安眠島의 海岸地形 權赫在
  6. 地形學(題 3 版) 權赫在
  7. 太白山地區 地質圖( 1 : 50,000 ) 大韓地質學會 太白山地區 地下資源調査團
  8. 서울대 석사논문 천리포 시구내의 적황색 퇴적층에 관한 연구 박경
  9. 地理學論叢 v.13 韓國 南東部 海岸에 發達한 shore platform의 形態와 發達過程 : 慶北迎日 海岸間의 shore platform을 中心으로 朴東源;崔成吉
  10. 서울대 博士論文 落東江下流와 王避川의 河岸段丘 孫明達
  11. 韓國第四紀學會誌 v.3 no.1 韓國에 있어서 嵌入曲流의 分布特性 宋彦根;曺華龍
  12. 慶北大 博士論文 韓半島 中 · 南部地域의 嵌入曲流 地形發達 宋彦根
  13. 地理學評論 v.52 韓半島南東部海岸の地形發達 吳建煥
  14. 釜山大師大 敎育論集 v.10 舊汀線高度變化로 부터 본 韓半島의 第四紀 地殼變動 吳建煥
  15. 釜山大 自然科學論文集 v.36 釜山灣一帶의 海成段丘와 第四紀 地慤變動 吳建煥
  16. 韓國第四紀學會誌 v.3 Bt Band의 形成過程 吳建煥
  17. 韓國第四紀學會誌 v.1 no.1 加作盆地의 地形發達 曺華龍;張昊;李鐘男
  18. 熊津地理 v.16 江陵 南大川 上流 '쑥밭벼뎅' 一帶의 河成段丘 崔成吉
  19. 地理學論集 v.18 no.1 墨湖海岸의 Shore Platform과 低位海岸段丘 崔成吉
  20. 季刊地理學 v.45 no.3 韓國東海岸珠樹川流城における 後期更新世の河成段丘の對北と編年 崔成吉
  21. 韓國第四紀學會誌 v.7 no.1 韓國 東海岸에 있어서 最終間氷期의 舊汀線高度 硏究 : 後期 更新世 河成段丘의 地形層序的 對北의 觀點에서 崔成吉
  22. ペドロヅスト v.16 no.1 東播台地のトラ斑土壤 三土正則
  23. 土壤地理學序說 松井 健
  24. 土壤地理學特論 松井健
  25. 農技硏究 v.B no.26 西南日本の黃褐色森林土および色土の生成と分類に關する硏究 氷塚鎭男
  26. Quarternary Research v.4 Quarternary Sea Level Fluctuations on a Teconic Coast : New $^{230}Th/^{234}$U Dates from the Huon Peninsula, New Guinea Bloom,A.L.;Broecker,W.S.;Chappell,J.;Matthews,R.K.;K.J.Mesollella
  27. Fabric and Mineral Analysis of Soils Brewer,R.
  28. C. R. Son. Soc. Geol. France Genese possible de dep$\^{o}$ts chimiques par congelation Calleux,A.
  29. Dissertation to the Univ. of Tsukuba Geomorphic Development of Intermontance Basins in Korea Chang,H.
  30. Nature v.324 Oxygen Isotopes and Sea Level Chappell,J.;N.J.Shackleton
  31. Science Reports of the Tohoku Univ. 7th ser.(Geogr.) v.38 Fossil Cryogenic Structures in the Terrace Deposit of Oship River, Samchok, Korea Choi,S.G.
  32. Quarternary Research v.33 South Carolina Interglacial Sites and Stage 5 Sea Levels Hollin,J.T.;P.J.Hearty
  33. Dissertation to Seoul National University Quarternary Stratigraphy of the Terrace Gravel Sequences in the Pohang Area(Korea) Kim,J.Y.
  34. The Journal of Geological Society of Korea v.9 no.2 A Study on the Terraces along the Southeastern Coast(Bang-eojin~Pohang) of the Korean Peninsula Kim,S.W.
  35. Dissertation to the Vrije University Brussel Quarternary deposits in the Coastal Fringe of the Korean Peninsula Lee,D.Y.
  36. Soil Science and Plant Nutrition v.3 no.4 The Properties and Genesis of Tora-han(Tiger-like) Soil on the High Terrace, North of Akashi City Mitsuchi,M.
  37. Bulletin of the Deprtment of Geography, Univ. of Tokyo v.13 Marine Terraces and Their Tectonic Deformation on the Coast of the Southern Part of the Korean Peninsula Oh,G.H.
  38. Catena v.14 Caracterisation micromorphologique et hydrodynamique des nivcaux structures par legel Quaternaire dans les formations superficielles du bassin-Versant de la Fecht(Vosges, France) Oh,K.S.;Reutenauer,D.;J.L.Mercier
  39. The Quarternary Research v.30 no.2 Late Quarternary Shorelines in the Japanese Islands Ota,Y.;A.Omura
  40. Journal of Geology v.6 no.7 Ice Lensing, Thermal Diffussion and Water Migration in Freezing Soil Palmer,A.C.
  41. Quarternary Research v.3 Oxygen Isotope and Palaeomegnetic Stratigraphy of Equatorial Pacific Core V 28-238 : Oxygen Isotope Temperatures and Ice Volumes on a $10^{5}$ and $10^{6}$ Year Scale Shakleton,N.J.;N.D.Opdyke
  42. Submarnine Geology(2nd ed.) Shephard,F.P.
  43. Quarternary Research v.4 When Did the Last Interglacial End? Suggate,R.P.
  44. Advances in Periglacial Geomorphology Cryoturbations Vandenbergh,J.;M.J.Clark(ed)
  45. Earth Surface Processes and Landforms v.9 Structures Caused by Repcated Freezing and Thawing in Various Loamy Sediments : A Comparison of Active, Fossil and Experimental Data Van Vliet-Lano$\"{e}$.B.;Coutard,J.P.;A.Pissart
  46. Quarternary Research v.13 Geomorphogy, Deformation, and Chronology of Marine Teraces along the Pacific Coast of Central Baja California, Mexico Woods,A.J.