ŚRODOWISKA EKSHALACJI WULKANICZNYCH I PŁONĄCYCH HAŁD WĘGLOWYCH - MINERALOGICZNE STUDIUM PORÓWNAWCZE

Abstract

ENVIRONMENTS OF VOLCANIC EXHALATIONS AND BURNING COAL DUMPS - MINERALOGICAL COMPARATIVE STUDYAbstract. This paper compares mineral assemblages forming from volcanic exhalations on the example of the La Fossa crater. Vulcano, Aeolian Islands and from the emission of gases on the burning coal-dumps of collieries of the Upper Silesian Coal Basin. Despite different origin, hot gases and vapors of both environments have many similarities, resulting in crystallization of many same minerals. This applies not only to sulphur and salammoniac. common in such environments, but also to many sulphates, such as godovikovite, millosevichite, tschermigite. chlorides, such as kremersite, or sulphides, such as bismuthinite. Major differences include, for instance, lack of borate minerals in the coal-dumps and of organic minerals in the volcanic areas. The diversity, including the regional differences within both environments, results mainly form geochemical variation of the parent rocks.