지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Geochemical and sedimentological analyses of sediment piston core were used to trace paleoceanographic environmental changes in the East China Sea. The analytical results revealed three lithostratigraphic units (I, II, and III) corresponding to a highstand stage, a transgressive stage, and a lowstand stage, respectively. Accelerator mass spectrometry (AMS) $^{14}C$ dated the boundaries between the units as 7 ka and II ka. That is, Unit I extended from the present to 7 ka, Unit II occupied a transitional episode from 7 to 11 ka, and Unit III was older than 11 ka. The transitional episode was characterized by sudden fluctuations in various geochemical proxies. Most strikingly, there was a gradual upward increase in both carbonate and total organic carbon (TOe) contents post-7 ka, during which time the ${\delta}^{l3}C$ values of organic material increased to a constant value. The gradual upward increase in the TOC and $CaCO_3$ contents in Unit I were accompanied by slight variations in grain size that probably reflect a stable modern oceanographic environment. Within Unit II (7 to 11 ka), the geochemical signals were characterized by abrupt and steep fluctuations, typical of a transgressive stage. Vertical mixing may have provoked an increase in productivity during this interval, with large amounts of terrigenous organic matter and/or freshwater being supplied by neighboring rivers. The geochemical signals remained stable throughout Unit III but exhibited different patterns than signals in Unit I. The high terrigenous organic matter content of Unit III suggests correspondence to a lowstand stage.
목차
등록된 정보가 없습니다.
참고문헌 (0)
참고문헌 신청함께 읽어보면 좋을 논문
논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!
-
Organic Geochemical Study on the Organic Matter Obtained from ODP Site 794A, East Sea
대한자원환경지질학회 학술발표회
2007 .01
-
Soil Geochemical Characteristics in Korea
제4기학회지
2005 .01
-
대한해협 대륙붕 해역의 홀로세 해수면 상승과 고환경변화
제4기학회지
2003 .01
-
Geochemical characteristics of the sediment in the western Ulleung Basin of the East Sea (Sea of Japan)
대한지질학회 학술대회
2003 .10
-
유기지화학 프록시를 이용한 고기후, 고해양 연구 사례
대한지질학회 학술대회
2013 .10
-
Paleoenvironmental Changes in the Northern East China Sea and the Yellow Sea During the Last 60 ka
제4기학회지
2003 .01
-
Biofunctionality and Bioconversion Activities of KA111(Pseudomonas fragi), KA115 (Bacillus methylotrophicu), KA182 (Bacillus subtilis), KA198 (Bacillus safensis), KA217 (Bacillus pumilus), KA222 (Bacillus licheniformis)
한국미생물학회 학술대회논문집
2016 .04
-
홀로세 초기 8.2 ka 이벤트에 의한 동북아 지역 기후 및 환경 변화
대한지질학회 학술대회
2017 .10
-
An experimental study of the geochemical behavior of radionuclides
대한지질학회 학술대회
2006 .10
-
지구화학적 재해 평가를 위한 지화학도 작성 및 기준치 설정
The Journal of Engineering Geology
2000 .01
-
A paleoenvironmental study of Holocene delta sediments in Nakdong River Estuary
지질학회지
2016 .02
-
Geochemical characteristics and provenance of the central south Yellow Sea sediments
대한지질학회 학술대회
2007 .04
-
동해 GPC 2B 코아 퇴적물에 대한 지화학 연구
대한지질학회 학술대회
2017 .10
-
Geochemical compositions and provenance discrimination of the central Yellow Sea sediments
한국지구과학회 학술발표논문집
2005 .01
-
한반도 서남해안 MIS 5e 해안단구의 퇴적층 특성 연구
자원환경지질
2016 .01
-
Results of eco-geochemical study in the Ulaanbaatar city
제4기학회지
2008 .01
-
Geochemical and geomagnetic properties of drill core sediments from the Youngjong Island: New evidences of sea level change during the late Pleistocene to Holocene
대한자원환경지질학회 학술발표회
2001 .01
-
CO₂ 반응실험과 지화학 모델링을 이용한 현무암질 응회암의 지화학적 반응 연구
대한지질학회 학술대회
2019 .10
-
Geochemical evolution of groundwater of the Cheongyang area, Korea
대한지질학회 학술대회
2007 .04
이 논문의 저자 정보
최근 본 자료
댓글(0)
0