| Citation: | Huang Wei, Zhifei Liu, Xiaoliang Chen, Pinxian Wang. Exploring Physical Indicators for Carbonate Contents in Deep Sea Sediments. Journal of Earth Science, 2003, 14(4): 300-305.
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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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