A role of ionizing radiation in some global processes and events in geologi
cal history of the Earth is considered. In particular, we discuss: (1) the
influence of ionizing radiation from radioactive nuclei disseminated in sed
imentary rocks on the transformation of terrestrial organic matter into sto
ne coals and oil; (2) the effect of cosmic rays from Supernova stars as a c
ommon cause of quasi-regular global geological processes and biocatastrophe
s. (C) 2001 Elsevier Science Ltd. All rights reserved.