SEDIMENTARY SEQUENCE ANALYSIS ON THE NORTHERN MARGIN OF THE ORDOS BASIN BASED ON MARKOV PROCESS.

Uranium is of great importance to China's nuclear energy and national defense. As a clean energy, the nuclear energy helps to adjust and optimize the energy structure, improve the ecoenvironment, and reduce the CO2 and S emissions, paving the way to sustainable development and ecological civilization. The sandstone-type uranium deposit, one of the four types of uranium deposits for industrial use, is an important supplier in China. This type of uranium deposit mainly exists in sandstone basins. And the basin is a complex space of different sedimentary strata and facies. Hence, basin analysis is an essential approach to determine the distribution and variation law of uranium resources. This paper mainly studies the sandstone-type uranium deposits on the northern margin of the Ordos Basin, China. Firstly, the author collected typical data of the geological features on the basin, and sorted data gathered from typical boreholes. Next, the Markov process model was adopted to analyze the sedimentary sequence and evolution in the basin. Finally, the relationship was clarified between the spatial distribution of uranium resources and the stratum evolution of the sedimentary basin. [ABSTRACT FROM AUTHOR]