[en] The L₂₃M₂₃M₂₃/ and L₂₃M₁M₂₃ Auger electron spectra from argon implanted by 1 keV ion bombardment in Be and Si crystals, were obtained using a double pass CMA operated in both the nonretard and retard modes. Background subtraction and loss-deconvolution were subsequently applied to obtain the final results. The argon-in-Be spectrum consists of a series of narrow peaks (FWHM less than 2 eV) which are sharper than those previously reported for the L₂₃M₂₃M₂₃ spectrum from solid argon. Associating the major peak in the spectrum with the L₃M₂₃M₂₃(¹D₂) peak in the gas phase spectrum leads to an identification in terms of energy separations of the peak structure with the principal peaks of the gas-phase spectrum to within 0.5 eV. It's concluded that the transitions responsible for the Auger spectrum can be characterized as quasiatomic, although the multitude of gas-phase satellite peaks is not seen in the results. Peaks in the argon-in-Si spectrum are slightly broader than those in the argon-in-Be spectrum. As a result of screening by the conduction electrons in the host material, the argon Auger emission energies are higher than those in the gas-phase spectrum. 15 references