AN EXPERIENCE IN THE SUBMICROSCOPIC STUDY OF IRON NEOFORMATIONS FROM VERTISOLS OF THE CENTRAL CISCAUCASIAN REGION

Different morphological forms of iron neoformations from Vertisols of the central Ciscaucasian region were studied by means of X-ray diffrac tometry, scanning electron microscopy, and an energy-dispersive X-ray system. The data obtained characterize the composition and structure o f iron neoformations. Iron compounds are roentgen-amorphous. They are represented by ferruginous films and coatings, globular and granular a ggregates. Most of them are allocated to pores, plane remains, and bac terial colonies. Virtually all iran neoformations contain biogenic com ponents. Under certain constraints, the abundance and the composition of these components can be used for judging the relative age of iron n eoformations.