초록

-기존 황해 지질 자원 대상 모든 국가 R&D 사업성과 조사, 분석 종합: 4개의 퇴적단위가 확인되었으며 최상부 퇴적단위와 그 하위 퇴적단위 사이에는 LGM에 형성된 부정합 존재
-시추자료, 물리탐사자료를 비교함으로써 군산분지의 한중 층서 분대 특성분석: 한국과 중국의 층서 분대에서 고제3기의 층서 분대가 큰차이를 나타냄
-한중 층서 대비를 위한 탄성파탐사 지역 선정
-200L-km의 천부 고해상 탄성파 탐사와 1개 지점에서 제4기층 해저 시추를 수행하여 75m의 비교란 퇴적물 코어 획득하고 6개의 퇴적단위로 구분

Abstract ▼

R&D project performed in the yellow Sea until now contains study on the depositional enviroment and stratigraphy of intertidal flat near the coastal area and offshore sedimentary basin. The sedimentary sequence developed in the intertidal flat near the coastal area eastern Yellow Sea can be divided

R&D project performed in the yellow Sea until now contains study on the depositional enviroment and stratigraphy of intertidal flat near the coastal area and offshore sedimentary basin. The sedimentary sequence developed in the intertidal flat near the coastal area eastern Yellow Sea can be divided into two (upper and lower) sedimentary units separated by an eroisonal unconformity. Lower unit contains some records about the climatic change during the last glacial period and its upper part is considered to be subject to subaerial exposure and weathering during the last glacial maximum. As the sea level rose after the last glacial maximum, the shoreline migrated landward and the sea level reached the present poisition at approximately 5,000-6.000 years ago. Since that time, the recent sediment was deposited in the intertidal flat near the coastal area eastern Yellow Sea, forming the recent intertidal deposits (upper unit).
The Qyaternary sedimentary sequence in the offshore basin can be divided into 4-6 sedimentary units separated by unconformities. Evolution of sedimentary units was largely controlled by the complex interplay between cyclic sea-level changes, variations of sediment supply, and hydrodynamic condition. Especially, the uppermost unit above the unconformity interpreted to be recent shelf deposits. The underlying surface, charaterized by an irregular, eroisosal unconformity, is regarded as the sequence boundary formed by a subaerial eroison during the last glacial period.

목차 Contents

• 제1장 연구개발 과제의 개요...22
• 제2장 국내외 기술개발 현황...27
• 제3장 연구개발수행 내용 및 결과...48
• 제1절 제4기 퇴적분지 연구...48
• 제2절 심부 퇴적분지 연구...55
• 제3절 고찰...71
• 제4장 결론 및 제언...173
• 제5장 목표 달성도 및 관련 분야에의 기여도...179
• 제6장 연구개발 결과의 활용계획...181
• 제7장 참고문헌...182