Downcore color scan data from sediment core M144_5-6 from the central western Aegean Sea@en

The dataset contains a downcore color scan of Kasten Core M144 KC5-6 for each 1cm. The analysis was performed onboard the R/V Meteor using a A MINOLTA CM-700d hand-held spectrophotometer combined with a CM-A178 target mask (Ø 8 mm, with plate). Color data were reported in the CIELAB space using the L*a*b* system. To calibrate the spectrophotometer, a Konica Minolta White Calibration Cap CM-A177 and Zero Calibration Box CM-A182 were used. Spectral reflectance was measured over a wavelength spectrum from 400 to 700 nm. Low L* and a* values representing darker, organic rich layers were defined sapropel phases as discussed in Pallacks et al. (in review).本数据集包含凯斯顿岩心（Kasten Core）M144 KC5-6沿轴向每1cm间隔的颜色扫描数据。本次分析在流星号科考船（R/V Meteor）上完成，采用美能达MINOLTA CM-700d手持式分光光度计搭配CM-A178目标掩膜（直径8 mm，带基板）进行。颜色数据以CIELAB色彩空间的L*a*b*体系进行记录。为校准分光光度计，本次分析使用柯尼卡美能达CM-A177白色校准帽与CM-A182零校准箱对其完成校准。光谱反射率的测量波长范围为400至700纳米。低L*与a*值对应深色富有机质层，被定义为腐泥相（sapropel phases），相关讨论详见Pallacks等人（待刊）的研究。