Mesozoic-Cenozoic Oversalt Deposits from the Gremyachkinskoye Sylvinite Field

The authors consider compositions of the rocks penetrated with the Well NO 13 in the Gremyachkinskoye sylvinite field, Volgograd Region. Varied complexes of terrigenous, ciliceous and carbonate rocks, alongside with their mixed varieties rhythmically alternate there over the Late Cretaceous, Paleogene, Neogene and Quaternary sections. Reconstructions have been made of their generation settings within marine basins; the basin evolution during that lengthy period used to be associated with periodic manifestations of tectonic events of both, global and regional scales. 

Features of the Permian and Triassic beds in the supersalt complex from the Gremyachinskoye potassium salt field

Study of the supersalt beds from the Gremyachinskoye sylvinite filed has shown the sections of both, the Permian and the Triassic beds to be curtailed relative to other areas of the Pricaspian Depression. Fragmentary parts of the Middle and of the Upper Permian beds have been revealed alongside with the Lower and the Middle Triassic, missing upper Triassic beds and the traces of the Upper Jurassic deposits.

Peculiarities of Compositions and Formation Environments of Potassium and Potassium-Magnesium Rocks From the Pogozhskaya Rhythmic Member in The Northwestern and the Northeastern Parts of the Caspian Slope Zone

The paper presents the results of composition examination of the uppermost of the Pogozhskaya rhythmic member from the northern near-slope fringes of the Caspian Region. The potassium-bearing horizon encountered there is determined to have resulted from the demineralization stage overlapping the carnallite and the bischofite stage deposits. In potassium salt accumulation, the major importance is attributed to the process of potassium ion concentration during the large-scale precipitation of salt-out halite associated with inflowing brine condensed to halite stage.

On the Prospects and Geo-ecological Consequences of Development of Deposits of Potassium Salts in the Saratov Region

The analysis of data on geo-ecological problems of development of potash deposits. The basic group of negative processes that arise in the process of developing the potash deposits. The main directions of research within geoekologicheskih promising areas in the Saratov region.

Carnallite-halite Rocks and Halite of Gremyachinskoye Field’ Halogenous Formations and Their Role in Productive of Sylvinite Horizon Foundation

Carnallite-halite rocks are the elements of halogenesis’ final stage. Carnallite setting have to follow after sylvinite setting. At the real cut (Gremyachinskoye field also) such succession is disturbed and foundations of those formations proceed of potassium accumulation. Structure of those rocks reflects the receipt in basin with evaporated brine of slightly evaporated solution. NaCl and sometimes KCl are salting out and formed ground halite and rare sylvinite- carnallite rocks.