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The paper deals with the description of natural conditions and implemented geophysical survey of a scientifically interesting slope deformation Doubrava Ujala, located in the municipality of Doubrava near the city of Karvina in the north-east of the Czech Republic in the reach of the effects of undermining caused by underground black coal mining. It is the case of the most extensive underground mineral mining in the Czech Republic, while the changes in the geological conditions are assumed to affect the slope defo...

The state of Sarawak, situated on northern part of the Borneo Island, is the part of Malaysia Federation. Main raw materials usable for the Sarawak economy are oil, wood, and natural gas. Nowadays the importance of brown coal as a raw material is caused by the growing needs of power in the Sarawak. It is the reason of working trip of authors of this article to the area of Merit Pila. They worked there as Deputy Mine Managers in 2006 and 2007. Merit Pila is great coal basin situated in central Sarawak. The paper br...

The Zbudza deposit is an important (major) deposit of halite within Slovakia but also Europe. It is possible establish that halite deposit Zbudza features attractive deposit about qualitative and quantitative aspect. It has important function on the part of selfsufficienty Slovak Republic in the production of salt and also in posse intersection to European trade. The economic effectiveness of financial investment is dependent from mining and process technology on the deposit. The investment efficiency is appreciat...