Wednesday, August 15, 2012

Chemical differentiation of planets: a core issue - new Larin's paper

Chemical differentiation of planets: a core issue

Herve Toulhoat (1), Valerie Beaumont (1), Viacheslav Zgonnik (1), Nikolay Larin (2), Vladimir N. Larin (3) ((1) IFP Energies nouvelles, Rueil-Malmaison Cedex, France, (2) Russian Academy of Science, Schmidt Institute of Physics of the Earth, Moscow, Russia, (3) Lomonosov Moscow State University, Moscow, Russia)
Prevalent theories of the Solar System formation minimize the role of matter ionization and magnetic field in the Solar nebula. Here we propose that a magnetically driven chemical gradient at the scale of the Solar nebula predates radial chemical differentiation of each planet. We report an observed correlation between the first ionization potentials of the elements and their abundances on Earth surface relative to Sun, interpreted as a Boltzmann distribution depending on the distance from the Sun. This predictive model for distribution of the elements in the Solar System is successfully tested for relative abundance data from CI chondrites, Moon, Mars and Venus. Deviations from the proposed law for a given planet correspond to surface segregation of elements following periodic trends. Bulk Earth would have included up to 18%wt H, with definite consequences on theories about inner Earth composition. From this model, a new picture of the Solar System emerges.


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I started my career in 1979 as an IBM/370 system engineer. In 1986 I got my PhD. in Robotics at St. Petersburg Technical University (Russia) and then worked as a professor teaching there CAD/CAM, Robotics and Computer Science for about 12 years. I published 30 papers and made several presentations for international conferences related to the Robotics, Artificial Intelligent and Computer fields. In 1999 I moved to the US and worked at Capital One bank in Richmond as a Capacity Planner. My first CMG paper was written and presented in 2001. The next one, "Global and Application Level Exception Detection System Based on MASF Technique," won a Best Paper award at CMG 2002 and was presented again at UKCMG 2003 in Oxford, England. My CMG 2004 paper about applying MASF technique to mainframe performance data was republished in the IBM z/Series Expo. I also presented my papers in Central Europe CMG conference and in numerous US regional meetings. I continue to enhance my exception detection methodologies. After working more than 2 years as the Capacity Management team lead for IBM, I had worked for SunTrust Bank for 3 years and then got back to IBM holding for 2+ years  Sr. IT Architect position. Currently I work for Capital One bank as IT Manager for IT Capacity Management group. In 2015 I have been elected to the CMG ( board of directors,

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