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Geological and geophysical exploration of the Kokonín fault for building constructions (Jablonec n. Nisou, Czech Republic)
Tumurkhuu, Gereltsetseg ; Goliáš, Viktor (advisor) ; Thinová, Lenka (referee)
Radioactivity is an important part of the environment. In the years 2014 - 2015 a survey on medicinal radioactive springs was carried out in the Tanvald granite body. During extensive radiohydrogeochemical exploration in the surrounding area of Schindler spring, the outcrop of U - mineralization has been found at a new construction site in the Kokonín fault. It is possible to find "hot" pieces of uranium ore fragments in the quaternary cover in this place. The occurrence of the hydrothermal (vein) type of uranium in the Krkonoše - Jizera is new as it hasn't been mentioned in literatures before. After an agreement with the owners, detailed radiometric survey proceeded in the surrounding area of two affected houses by using gamma spectrometry and emanometry at the dense net. There is a wider area between two houses with activities of 222 Rn over 1 MBq/m3 and on the ore outcrop was measured 3.3 MBq/m3 . A quaternary solifluction flow with an increased radioactivity creeps down under the House 1. The highest uranium contents reached up to 291 ppm eU (= 3 595 Bq/kg 226 Ra) on the uranium ore lens outcrop. The average of gamma dose rate is 85,6 nGy/h with maximem 261 nGy/h on the outcrop. A further radiometric survey through the entire Kokonín fault line was carried out in an area of roughly 0.25 x 1 km2...
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Mongolian uranium deposits
Tumurkhuu, Gereltsetseg ; Goliáš, Viktor (advisor) ; Zachariáš, Jiří (referee)
Mongolia is a landlocked country, located in northeast Asia between Russia and China. The country has a total area of 1 565 600 kmš and shares a 4 673 km long border with China on its eastern, western and southern sides and a 3 485 km long border with Russia to the north. The mining sector is the single largest industry of Mongolia, accounting for 55 % of industrial output and more than 40 % of export earnings. Prior to 1970, Mongolia was not able to develop its vast mineral resources due to a lack of infrastructure and lack of financing for mineral resource development. However, beginning in 1970, numerous deposits of copper, gold, fluorspar, uranium, and coal were developed by joint ventures formed in partnership with the Soviet Union and its allies. Increased nuclear electricity generation in Asia presents uranium suppliers such as Mongolia with an opportunity to develop its uranium and nuclear industry. This Bachelor thesis "Mongolian uranium deposits" deals with the geology and mineralogy of uranium deposits in Mongolia. It shows a current capacity of uranium reserves and possible resources and also inquiries into the future.
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