The study of the metamorphosed carbonaceous matter (MCM) of the Kara astrobleme (PayKhoy, Russia) by the methods of small-angle scattering of X-ray synchrotron radiation (SAXS) and high resolution transmission electron microscopy (HRTEM) is described. The nanostructured features of the impactmetamorphosed and primary carbonaceous matter of sedimentary rocks are analyzed in the framework of the model of synchrotron radiation scattering by lognormal distribution of spherical particles. The MCM is characterized by 6 nm structural elements and nanoporous structure; no scattering elements with characteristic size within the analyzed small-angle X-ray scattering range were identified for the primary carbonaceous matter.
