The criteria of physical conformity elaborated in application to tectonic experimentation by M. King Hubbert, B. L. Shneerson, E. N. Liustikh, and more fully by M. V. Gzovsky place tectonic experimentation on a solid methodological basis and show that it is entirely possible to attain a good approximation to physical conformity.
Tectonic modeling is an essential supplement to the geological methods of field structural research. An aptly applied experimental method enables one to detect very important aspects which ordinarily escape the geologist as they are being produced.
Soviet tectonophysical studies aim at studying fields of stress which acted in the Earth's crust in earlier geological periods and the elaboration of appropriate techniques, one of which is the optical method of studying stressed states on models.
Some results of recent investigations in tectonophysics are described.