Color Reflectance (Spectrophotometer) of IODP Hole 386-M0095A

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.For further methodological information see methods chapter in Strasser, M. et al., 2023 https://doi.org/10.14379/iodp.proc.386.102.2023

本数据集涵盖国际大洋发现计划（International Ocean Discovery Program, IODP）386航次（日本海沟古地震学研究）指定钻孔的颜色反射光谱光度法与色度学数据。数据采集于2022年2月14日至2022年3月15日期间，在D/V Chikyu号科考船上开展的386航次陆上作业阶段。岩心剖面经纵向劈开后，每一块存档半岩心均通过Tri-Sensor岩心测井仪（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。所得数据以L*a*b*颜色坐标系表示，其中L*为总反射率指数，取值范围为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。如需获取更多方法学细节，请参阅Strasser M.等人2023年发表的相关研究章节，链接：https://doi.org/10.14379/iodp.proc.386.102.2023