Occurrence of metal iron inside the planets


  • D. M. Pecherskyi Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russian Federation




thermomagnetic analysis, microprobe analysis, extraterrestrial metal iron, nickel


Comparison of thermomagnetic and microprobe data on metal iron in terrestrial rocks (xenolithes, Siberian trap and oceanic basalt) has been conducted with the data on extraterrestrial metal iron (in sediments, lunar basalt and meteorites). It has been revealed that the particles of metal iron are present in all rocks and they are similar by their composition, shape and size. Iron concentration in the crust and upper mantle of the planets is less than 0,0n %, in the lower part of the mantle from 0.n%, to 9 %, in the core ~ 90 %. 75—85 % iron particles from the crust and upper mantle do not contain Ni admixture, and in the lower mantle and the cores of planets only 8 % of iron particles do not have any Ni. Such a similarity testifies the likeness of terrestrial conditions of appearance and composition of iron with those ones on the planets-sources of meteorites and interplanetary dust, which entered into terrestrial sediments. The whole pattern is produced by homogeneity of gas-dust clouds in the early stage of formation of stellar-planetary systems and the posterior gravity differentiation of planets.


Burov B. V., Nurgaliev D. K., Yasonov P. G., 1986. Paleomagnetic analysis. Kazan: Publ. House Kazan State University, 167 p. (in Russian).

Zharkov V. N., 2013. The internal structure of the Earth and planets. Moscow: Nauka, 415 с. (in Russian).

Korchagin O. A., Tsel’movich V. A., Pospelov I. I., Quyantao B., 2010. Cosmic magnetite microspherules and metallic particles near the Permian–Triassic boundary in a global stratotype section (stratum 27, Meishan, China). Doklady RAN, Nauki o Zemle 432, 631—637 (in Russian).

Marakushev A. A., Granovskiy L. B., Zinov’eva N. G., 1992. Cosmic Petrology. Moscow: Publ. House Moscow State University, 325 p. (in Russian).

Petromagnetic Model of the Lithosphere, 1994. Ed. D. M. Pechersky. Kiev: Naukova Dumka, 345 p. (in Russian).

Pecherskiy D. M., 2015. The distribution of particles of native iron and Fe-Ni alloys on the planet. Saarbrücken: Palmarium Academic Publishing, 56 p. (in Russian).

Pecherskiy D. M., 2012. Native Iron and Other Magnetic Minerals in Sediments: Thermomagnetic Signs of Extraterrestrial Origin). Saarbrucken: Palmarium Academic Publishing, 107 p. (in Russian).

Pecherskiy D. M., Bagin V. I., Brodskaya S. Yu., Sharonova Z. V., 1975. Magnetism and Formation Conditions of Igneous Rocks. Moscow: Nauka, 312 p. (in Russian).

Pecherskiy D. M., Gil’manova D. M., Markov G. P., Murdmaa I. O., Nurgaliev D. K., Tsel’movich V. A., Sharonova Z. V., 2013. Native Iron and Other Magnetic Minerals in the Sediments of the Northwestern Atlantic: Thermomagnetic and Microprobe Evidence. Fizika Zemli (3), 131—153 (in Russian).

Pecherskiy D. M., Markov G. P., Tsel’movich V. A., Sharonova Z. V., 2012. Extraterrestrial Magnetic Minerals. Fizika Zemli (7-8), 103—120 (in Russian).

Pecherskiy D. M., Nurgaliev D. K., Fomin V. A., Sharonova Z. V., Gil’manova D. M., 2011. Extraterrestrial Iron in the Cretaceous–Danian Sediments. Fizika Zemli (5), 12—34 (in Russian).

Pecherskiy D.M., Sharonova Z. V., 2013. A Relationship between the concentration of Native Iron Particles in Sediments and the Rate of Their Accumulation: A Synthesis of Thermomagnetic Data. Fizika Zemli (5), 125—131 (in Russian).

Pecherskiy D. M., Sharonova Z. V., 2012. Thermomagnetic evidence of native iron in sediments. Fizika Zemli (4), 38—44 (in Russian).

Florenskiy K. P., 1965. On the initial stage of differentiation of the Earth’s matter. Geokhimiya (8), 1—18 (in Russian).

Bozorth R. M., 1951. Ferromagnetism. Toronto-New York-London: D. Van Nostrand Comp. Inc. 784 p.

Doell K. B., Gromme C. S., Thorne A. N., Sentfle F. E., 1970. Magnetic studies of Lunar samples. Science 167, 695—697.

Encyclopedia Britanica , 2012. www.britanika.com

Hubbard W., 1984. Planetary Interiors. New York: Van Nostrand, 328 p.

McFadden L., Weissman P. R., Johnson T. V., 2007. Encyclopedia of the Solar System. 992 p.

Nagata T., Ishikawa Y., Kinoshita H., Kono M., Syono Y., Fisher R. M., 1970. Magnetic properties of Lunar samples. Science 167, 703—704.

Nagata N., Sugiura N., Fisher R. M., Schwerer F. C., Fuller M.D., Dunn J. R., 1974. Magnetic properties of Apollo 11—17 lunar materials with special reference to effects of meteorite impact: Proceedings of the Fifth Lunar conference, P. 2827—2839.

Pechersky D. M., 2010. Metallic iron and nickel in Cretaceous and Cenozoic sediments: the results of thermomagnetic analysis. J. Environ. Protect. 1, 143—154.

Runcorn S. K., Collinson D. W., O'Reilly W., Stephenson A., Greenwood N. N., Battey M. H., 1971. Magnetic properties of Lunar samples. Proc. R. Soc. London, A325, 157—174.



How to Cite

Pecherskyi, D. M. (2016). Occurrence of metal iron inside the planets. Geofizicheskiy Zhurnal, 38(5), 13–24. https://doi.org/10.24028/gzh.0203-3100.v38i5.2016.107817