Color Reflectance (Spectrophotometer) of IODP Hole 386-M0090C@en

Color reflectance spectrophotometry and colorimetry data from the above given hole of International Ocean Discovery Program (IODP) Expedition 386 (Japan Trench Paleoseismology). The data where obtained during the onshore phase of expedition 386 which took place between 2022-02-14 – 2022-03-15 onboard D/V Chikyu. After longitudinal splitting of the core sections, each archive half was scanned by the Tri-Sensor Core Logger (TSCL; NS Design) including a noncontact imaging spectrophotometer (MetaVue VS3200; X-Rite), recording data at 2-cm sampling interval. The obtained data is represented in the L*a*b* color coordinate system, where L* is a total reflectance index ranging 0%–100%, a* is green (<0) to red (>0) chromaticity, and b* is blue (<0) to yellow (>0) chromaticity. L*a*b* values were transferred into RGB values using the MATLAB routine lab2rgb. […]本数据集涵盖国际大洋发现计划（International Ocean Discovery Program, IODP）386航次（日本海沟古地震研究）上述钻孔的颜色反射光谱光度学与比色法数据。该数据采集于2022年2月14日至2022年3月15日期间开展的386航次陆上阶段，作业平台为地球号（D/V Chikyu）科考船。岩芯剖面经纵向劈开后，每一块存档半芯均通过三传感器岩芯测井仪（Tri-Sensor Core Logger, TSCL; NS Design）完成扫描，该仪器搭载非接触式成像分光光度计（MetaVue VS3200; X-Rite），以2厘米的采样间隔记录数据。所获数据以L*a*b*颜色坐标系呈现：其中L*为总反射率指数，取值范围0%~100%；a*代表绿（<0）至红（>0）色度分量；b*代表蓝（<0）至黄（>0）色度分量。研究人员通过MATLAB内置程序lab2rgb将L*a*b*色彩值转换为RGB色彩值。[…]