| ZHAO Na,XU Xingyong,YU Hongjun,YAO Jing,SU Qiao,PENG Shuzhen. 2011. The color reflectance of marine-terrigenous deposits in LZ908 borehole in south coastal plain of the Laizhou Bay. Acta Oceanologica Sinica, (4):53－59 |
| The color reflectance of marine-terrigenous deposits in LZ908 borehole in south coastal plain of the Laizhou Bay |
| The color reflectance of marine-terrigenous deposits in LZ908 borehole in south coastal plain of the Laizhou Bay |
| Received:September 19, 2010 Revised:January 27, 2011 |
| DOI：10.1007/s13131-011-0133-4 |
| Key words:coastal plain the Laizhou Bay visible light reflectance factor analysis L*a*b* lightness |
| 中文关键词: coastal plain the Laizhou Bay visible light reflectance factor analysis L*a*b* lightness |
| 基金项目:The National Natural Science Foundation of China under contract No. 40602018; the Chinese Offshore Investigation and Assessment ("908" Program) under contract No. 908-01-ZH2; the Marine Welfare Research Project under contract No. 200805063. |
| Author Name | Affiliation | E-mail | | ZHAO Na | Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
Graduate University of Chinese Academy of Sciences, Beijing 100049, China
the First Institute of Oceanography, State Oceanic Administration People's Republic of China, Qingdao 266061, China | | | XU Xingyong | the First Institute of Oceanography, State Oceanic Administration People's Republic of China, Qingdao 266061, China | xuxingyong@fio.org.cn | | YU Hongjun | the First Institute of Oceanography, State Oceanic Administration People's Republic of China, Qingdao 266061, China | | | YAO Jing | the First Institute of Oceanography, State Oceanic Administration People's Republic of China, Qingdao 266061, China | | | SU Qiao | the First Institute of Oceanography, State Oceanic Administration People's Republic of China, Qingdao 266061, China | | | PENG Shuzhen | Taishan University, Taian 271021, China | |
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| Abstract: |
| Color measuring is characterized by high resolution, high efficiency, and low cost. The application becomes increasingly common for tracing sediment sources and climate variation. Borehole LZ908 in the south coastal plain of the Laizhou Bay in northeast China, was used, of which the top 54 m containing all marine facies was focused, to test the feasibility of colorimetry as a climate indicator using visible light reflectance spectra and L*a*b* measurement results. The results show a good correction between lightness and calcium carbonate content in marine-terrigenous deposits; therefore, these deposits can be used as a proxy to study climate changes. Factor-analysis on the first derivative values of the raw visible light reflectance spectra produced three principal factors corresponding to goethite, organic matter, and hematite. Down hole variations in the three factor scores, lightness, calcium carbonate content, and grain size were quite consistent. Moreover, high lightness and low factor scores in goethite, hematite, and organics indicated glacial regression deposits, while low lightness and high factor scores in goethite, hematite, and organics indicated interglacial transgression deposits. |
| 中文摘要: |
| Color measuring is characterized by high resolution, high efficiency, and low cost. The application becomes increasingly common for tracing sediment sources and climate variation. Borehole LZ908 in the south coastal plain of the Laizhou Bay in northeast China, was used, of which the top 54 m containing all marine facies was focused, to test the feasibility of colorimetry as a climate indicator using visible light reflectance spectra and L*a*b* measurement results. The results show a good correction between lightness and calcium carbonate content in marine-terrigenous deposits; therefore, these deposits can be used as a proxy to study climate changes. Factor-analysis on the first derivative values of the raw visible light reflectance spectra produced three principal factors corresponding to goethite, organic matter, and hematite. Down hole variations in the three factor scores, lightness, calcium carbonate content, and grain size were quite consistent. Moreover, high lightness and low factor scores in goethite, hematite, and organics indicated glacial regression deposits, while low lightness and high factor scores in goethite, hematite, and organics indicated interglacial transgression deposits. |
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