Figure F27. Color reflectance measurements from split-core surfaces at Site 1143, smoothed with a 20-point moving average, plotted for each hole. L*, a*, and b* are standard parameters calculated by the Minolta CM-2002 photospectrometer from the spectral data. L* = black line, a*/b* = gray line, APC = advanced hydraulic piston corer, XCB = extended core barrel.