Scientific Basis of Deep-Earth Knowledge J. Marvin Herndon Transdyne Corporation 11044 Red Rock Drive San Diego, CA 92131 USA mherndon@san.rr.com http://NuclearPlanet.com Abstract Recent interest in the detection of geo-antineutrinos with spectral and directional resolution [1-4] is enthusiastically welcomed as a potential means of verifying the existence of a nuclear georeactor at the center of the Earth [5-8]. Generally, as physicists venture into a new area, there is a learning curve and there may be some confusion. But in the case of deep-Earth science, confusion may be considerably magnified by an Earth science literature turgid with decades of reports of flawed investigations. I present from a historical perspective a logical progression of understanding related to deep-Earth composition that comes from fundamental discoveries and from discoveries of fundamental quantitative relationships in nature. By following step by step the reasoning from that understanding, one might begin to appreciate what is not yet known that pertains to recent interest in georeactor-produced antineutrinos and also what should be investigated to further advance that understanding. References 1. Raghavan, R. S. 2002 Detecting a nuclear fission reactor at the center of the earth. arXiv:hep-ex/0208038 Aug 2002. 2. de Meijer, R. J., van der Graaf, E. R. & Jungmann, K. P. 2004 Quest for a nuclear georeactor. Nucl. Physics. News Int. 14, 20-25. 3. Domogatski, G., Kopeikin, L., Mikaelyan, L. & Sinev, V. 2004 Neutrino geophysics at Baksan I: Possible detection of Georeactor Antineutrinos. arXiv:hep-ph/0401221 v1 28 Jan 2004. 4. Fiorentini, G., Lissia, M., Mantovani, F. & Vannucci, R. 2004 Geo-neutrinos: a short review. arXiv.org/pep-ph/0409152. 5. Herndon, J. M. 1993 Feasibility of a nuclear fission reactor as the energy source for the geomagnetic field. J. Geomag. Geoelectr. 45, 423-437. 6. Herndon, J. M. 1994 Planetary and protostellar nuclear fission: Implications for planetary change, stellar ignition and dark matter. Proc. R. Soc. Lond A 455, 453-461. 7. Herndon, J. M. 2003 Nuclear georeactor origin of oceanic basalt 3He/4He, evidence, and implications. Proc. Nat. Acad. Sci. USA 100, 3047-3050. 8. Hollenbach, D. F. & Herndon, J. M. 2001 Deep-earth reactor: nuclear fission, helium, and the geomagnetic field. Proc. Nat. Acad. Sci. USA 98, 11085-11090.