http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 남승일(S.-I. Nam) (검색결과 7 건)
- 무료
- 기관 내 무료
- 유료
-
-
-
-
-
색지수 이미지를 이용한 후기 제 4기 동해 퇴적물 코어의 고해상 층서 복원
박옥분(Park, O.B.),남승일(Nam, S.-I.) 대한지질학회 2010 지질학회지 Vol.46 No.5
Using the 3-CCD (charge-coupled device) line scan camera equipped within the Avaatech XRF-Core Scanner, high resolution images and color parameters were estimated from the 3 sediment cores (05GCRP-13, 14, 15), which were taken from the western margin of the East Sea. Based on the high resolution images and color parameters, a precise stratigraphy can be established for the 3 sediment cores. For the establishment of a precise stratigraphy, lightness values (L ), AMS <sup>14</sup>C dating and 5 tephra layers deposited in the sediment core 05GCRP-15 are used to correlate with those data recorded in the core MD01-2407 which was retrieved from the Oki Ridge of the southeastern East Sea. According to the precise age model, the 3 investigated sediment cores are likely to represent the paleoceanographic record during the last about 94 ka BP (since the MIS 5.2). In particular, color parameters such L<sup>*</sup>, a<sup>*</sup> and b<sup>*</sup> can be used for the correlation between sediment cores recovered from the East Sea. Moreover, these color parameters are closely related with any chemical composition such as organic carbon and/or carbonate contents. Furthermore, the East Sea sediments that are characterized by alternations of dark and light layers seemed to well reflect the paleoceanographic changes during the late Quaternary glacial-interglacial cycles. These dark and light cycles on millennial scales are well matched the D-O (Dansgaard-Oeschger) cycles recorded in the NGRIP (North Greenland Ice Sheet Project) ice core δ<sup>18</sup>O data. As a result, the high resolution images together with color parameters can be used as a reliable proxy for establishing a precise stratigraphy as well as the paleoceanographic reconstruction in the East Sea during the late Quaternary.
-
-
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
