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논문 기본정보
동해 남한국대지 퇴적물의 생물기원 성분 입도 분포의 특성과 고해양학적 의미
논문 개요
| 기관명 | NDSL |
|---|---|
| 저널명 | Ocean and polar research |
| ISSN | 1598-141x,2234-7313 |
| ISBN |
논문저자 및 소속기관 정보
| 저자(한글) | 장준호,박장준,김은정,엄인권,충남대학교 자연과학대학 해양환경과학과,충남대학교 자연과학대학 해양환경과학과,충남대학교 자연과학대학 해양환경과학과,한국지질자원연구원 석유해저연구본부 |
|---|---|
| 저자(영문) | |
| 소속기관 | |
| 소속기관(영문) | |
| 출판인 | |
| 간행물 번호 | |
| 발행연도 | 2020-01-01 |
| 초록 | This study details grain-size distributions (GSDs) of carbonate and biogenic opal fractions of the sediments retrieved from the South Korea Plateau in the East Sea and draws paleocanographic implications from them. The opal-fraction GSDs show fine modes of 10.3 ㎛ and coarse modes of 102.5 ㎛ on average. The fine-mode grains of opal fractions mainly consist of small diatoms and radiolarians including their broken frustules, while the coarse-mode grains are mostly comprised of large warm-water diatoms and radiolarians. Significant positive correlation between opal contents and abundances of the coarse-mode GSDs in the total GSDs suggests that the abundances of the coarse-mode GSDs were controlled by the increased surface productivity of warm-water diatoms during interglacial stages. The carbonate-fraction GSDs show fine modes of 2.4 ㎛ and coarse modes of 99.1 ㎛ on average. The fine-mode grains mainly consist of coccolithophores, while the coarse-mode grains are mostly comprised of intact or broken planktonic foraminifera. The abundances of coarse-mode and fine-mode GSDs were not correlated with carbonate contents, suggesting a complex control exerted by both the degree of carbonate dissolution and the productivity of coccolithophores on the carbonate-fraction GSDs. |
| 원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=JAKO202027265688544 |
| 첨부파일 |
추가정보
| 과학기술표준분류 | |
|---|---|
| ICT 기술분류 | |
| DDC 분류 | |
| 주제어 (키워드) | grain-size distribution,grain composition,paleoceanography,South Korea Plateau,East Sea |