Prediction of Mineralization Prospects Based on Geological Semantic Model and Mobile Computer Machine Learning

Table 2

Ion and group absorption bands corresponding to the characteristics of rock mineral reflection spectrum.

Ion or group	Characteristic absorption band center	Corresponding ASTER band	Typical minerals
Iron ion Fe^2+	0.45, 0.52, 0.55, 1.0~1.1	Band1 (0.52~0.60)	Lepidocrocite
Iron ion Fe^3+	0.49, 0.70, 0.87	Band2 (0.61~0.69)	Goethite, hematite, jarosite
		Band3 (0.76~0.86)
Hydroxyl(OH-)Al-OH, Mg-OH	1.4, 2.2, 2.3	Band6 (2.185~2.225)	Kaolinite, pyrophyllite, muscovite, talc, serpentine
		Band7 (2.225~2.285)
Carbonate ion CO^3~	1.9, 2.0, 2.16, 2.35, 2.55	Band6 (2.185~2.225)	Calcite, dolomite
		Band7 (2.225~2.285)
		Band8 (2.295~2.285)