The model of formation of pipe-like kimberlite and lamproite bodies, which is based on the fluid dynamic regime of development of magmatic paleosystems, is developed. The main factors determining the fluid dynamic regime of formation of kimberlite bodies are formulated. The proposed model satisfactorily explains many morphological features of kimberlite systems represented by dykes, pipes and sills, peculiarities of the internal structure of kimberlite bodies composing them and may serve as the basis for developing criteria of their diamond potential.
The project is dedicated to developing recommendations for the production of a complex potassium, calcium and phosphorus fertilizer with a prolonged effect from mining waste from the Kovdors-mica and Kovdorskiy GOK mines. An important task is to dispose of the dumps accumulated over the years of operation of these actively operating mines. The relevance of creating a new complex potash fertilizer from phlogopite, apatite and calcite is determined by the fact that it will have a prolonged action without high solubility. In order to experimentally test the possibility of using these mineral wastes as fertilizer in summer 2001 we carried out a series of micro-daily field experiments with potato varieties Nevskiy, which are typical “potassium” plants. As a result, we found that not only phlogopite and calcite, but also the finely ground Francolite, which is a natural source of phosphorus, affect the plants. The experiment was accompanied by monitoring of the balance of the main chemical elements in the fertilizer-soil-plant chain. This is the next step towards the development of a new type of complex fertilizer of prolonged action, containing the necessary elements (K, Ca, Mg and P) in a form accessible to plants and not easily washed out of the soil by surface water.
