expedition site hole core core_type section offset_top_cm depth_mbsf run_number measurement_number run_timestamp cielab_L* cielab_a* cielab_b* munsell_hvc tristumulus_x tristumulus_y tristumulus_z channel_first channel_last channel_increment spectral_reflectance_400nm spectral_reflectance_410nm spectral_reflectance_420nm spectral_reflectance_430nm spectral_reflectance_440nm spectral_reflectance_450nm spectral_reflectance_460nm spectral_reflectance_470nm spectral_reflectance_480nm spectral_reflectance_490nm spectral_reflectance_500nm spectral_reflectance_510nm spectral_reflectance_520nm spectral_reflectance_530nm spectral_reflectance_540nm spectral_reflectance_550nm spectral_reflectance_560nm spectral_reflectance_570nm spectral_reflectance_580nm spectral_reflectance_590nm spectral_reflectance_600nm spectral_reflectance_610nm spectral_reflectance_620nm spectral_reflectance_630nm spectral_reflectance_640nm spectral_reflectance_650nm spectral_reflectance_660nm spectral_reflectance_670nm spectral_reflectance_680nm spectral_reflectance_690nm spectral_reflectance_700nm string string string int string int double double int int datetime double double double string double double double int int double double double double double double double double double double double double double double double double double double double double double double double double double double double double double double double double sampleID sampleID sampleID sampleID sampleID sampleID offset_top depth_mbsf meta meta meta value_main value_main value_main value value value value meta meta meta value value value value value value value value value value value value value value value value value value value value value value value value value value value value value value value cm m cie_lab cie_lab cie_lab nm