Evidence of hot and cold igneous processes has been reported in small satellites and dwarf planets of the Solar System. Olivine and pyroxenes were detected in the spectral bands of both small satellites and dwarf planets. The aqueously altered form of olivine and serpentine has been detected in the spectrums of Ceres and Miranda hinting at possible hydrothermal processes in their interiors. Once more, the ubiquitous distribution of 26 Al in the planetary nebula, then evolving in the protoplanetary disk, contributed to the primordial widespread heating. Volcanism, or cryovolcanism, then developed only in those bodies where long-lived radiogenic elements, and/or tidal processes, were available. C1 [Leone, Giovanni] Univ Atacama, Inst Invest Astronomia & Ciencias Planetarias, Copiapo 153000, Atacama, Chile. [Leone, Giovanni; Tanaka, Hiroyuki] Virtual Muog Inst, Tokyo, Japan. [Tanaka, Hiroyuki] Univ Tokyo, Int Muog Res Org MUOGRAPHIX, Tokyo, Japan. [Tanaka, Hiroyuki] Univ Tokyo, Earthquake Res Inst, 1-1-1 Yayoi,Bunkyo Ku, Tokyo 1130032, Japan. C3 Universidad de Atacama; University of Tokyo; University of Tokyo