| Exploring Physical Indicators for Carbonate Contents in Deep Sea Sediments |
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| 作者姓名： | HuangWei LiuZhifei ChenXiaoliang WangPinxian |
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| 作者单位： | LaboratoryofMarineGeology,TongjiUniversity,Shanghai200092 |
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| 基金项目： | ThispaperissupportedbytheNationalNaturalScienceFoundationofChina (Nos . 49999560and 40 2 760 1 9)andNKBRSF (No.G2 0 0 0 0 7850 0 ) |
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| 摘 要： | To determine carbonate contents of deep sea sediments using physical properties is an enjoyable and efficient paleoceanographic way, which has been processed successfully in many studies based on a low resolution, but rather than a high one. A series of mathematical methods including the least square method were used in this study to build multiple regression equations between color reflectance and carbonate content, and between magnetic susceptibility and carbonate content, based on the data of color reflectance and magnetic susceptibility collected via the ODP Leg 184 cruise, as well as measured carbonate contents. We found that percent carbonate estimated with diffuse reflectance is closer to the measured one than that estimated with magnetic susceptibility, and the multiple regression equation is varied in different sites.
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| 关 键 词： | 碳酸盐 深海 沉淀物 物理探测器 数学方法 方程式 二氧化碳 |
Exploring Physical Indicators for Carbonate Contents in Deep Sea Sediments |
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| HuangWei LiuZhifei ChenXiaoliang WangPinxian.Exploring Physical Indicators for Carbonate Contents in Deep Sea Sediments[J].Journal of China University of Geosciences,2003,14(4):300-305. |
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| Authors: | Huang Wei Liu Zhifei Chen Xiaoliang Wang Pinxian |
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| Abstract: | To determine carbonate contents of deep sea sediments using physical properties is an enjoyable and efficient paleoceanographic way, which has been processed successfully in many studies based on a low resolution, but rather than a high one. A series of mathematical methods including the least square method were used in this study to build multiple regression equations between color reflectance and carbonate content, and between magnetic susceptibility and carbonate content, based on the data of color reflectance and magnetic susceptibility collected via the ODP Leg 184 cruise, as well as measured carbonate contents. We found that percent carbonate estimated with diffuse reflectance is closer to the measured one than that estimated with magnetic susceptibility, and the multiple regression equation is varied in different sites. |
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| Keywords: | carbonate color reflectance magnetic susceptibility South China Sea ODP Leg 184 |
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