A model for analysis of the spectral reflectance of mineral mixtures

摘要

We proposed a model to determine the spectral reflectance of mineral mixtures as a function of relative abundance of mineral components on the basis of both diffuse spectral reflectance and diffuse spectral transmittance of the components. In order to test the model, we measured spectral reflectances of sized olivine and pyroxene samples separated from Nuevo Mercurio ordinary chondrite and examined variations of spectral reflictances of the olivine-pyroxene mixtures as a function of relative mineral abundance. Spectral reflectances calculated for olivine-pyroxene mixtures based on our model agree well with measured spectra of the mixtures.