The authors examined the capability of reflectance spectroscopy for drill core logging in the Yanzhuang

magnetite-quartzite type iron deposit of Changli county, Hebei province. 261 rock samples were collected for

chemical analysis and spectral measurement. The results show that the reflectance of iron ore is low, generally

between 5%~20%. The absorption band of iron ion is in the range of 400~1100 nm. The content of iron shows

significant negative exponent correlation with the average reflectance of 850~900 nm, and this provides a

theoretical and technical basis for hyperspectral drill core logging in this kind of ore deposits.