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MORPHOGENETIC CLASSIFICATION OF THE MINERALS ON THE BASE OFMICROTOPOGRAPHY CHARACTERISTICS ( Au, Ag and diamonds)тезисы доклада
- Авторы: POSUKHOVA T.V., SAKHAROVA M.S., KUDRYAVTSEVA G.P.
- Сборник: Proceedings of the 30th International Geological Congress
- Серия: Mineralogy
- Том: 1
- Тезисы
- Год издания: 1997
- Место издания: CRC Press Beijing, China
- Аннотация: The conditions of the nucleation, growth and postcrystallize changing determine many mineral properties ( the morphology among them). Many new facts about mineral's micromorphology and surface microtopography from different Au-Ag and diamondiferrous deposits obtaining by the SEM methods were received and generalized.On this base were suggested the morphogenetic classification of gold, silver and microdiamond. The classification is supported on the complex method of mineral investigation. At the first study were selected and described gold, silver and microdiamonds from different mineral assosiations. Were releaved the peculiariries of there chamical composition and phisical properties and the same to assosiated minerals. The peculiarities of primary silver are the pipe pseudomorphoses on the wire silver. The peculiarities of the secondary silver are dendritic microsculptures, forming by the cubic silver microcrystals. The peculiarities of the recrystalline silver are the nucliation individs on the surface of the grains. The peculiarities of the kimberlite diamonds are the octahedron shapes and trigonal and ditrigonal growth microsculptures. The peculiarities of the metamorphic diamonds are the cubic shapes, aggregate, blocked, tabular and skeletal microsculptures, forming during the nontangencial growth. The peculiarities of the microdiamonds from the meteoritic astroblems are the gesagon-tabular shapes and heteroheneous microstructure, presence of the londsdailite phases.
- Добавил в систему: Посухова Татьяна Владимировна