摘要：
A uranium mill tailings, located in Guangdong, was selected for spatial distribution of the radon exhalation rates measured by local static method. The two-dimension surface of radon exhalation rates was established by Surfer using the data of spatial distribution of radon exhalation rates measured at August 14, 2007 to 19 and 21, which was analyzed by fractal method of projective covering. The results show that the two-dimension surface of radon exhalation rates is of fractal structure. The fractal dimension of surface of radon exhalation rates from August 14, 2007 to 19 and 21 are 2.0535, 2.0173, 2.0029, 2.0084, 2.0079, 2.0057 and 2.0034, respectively, which indicates that the complexity of spatial distribution of the radon exhalation rates at 14 and 15 are larger than that of the other days. The phenomenon results from the change of precipitation and temperature, as well as the features of uranium mill tailings, including mineral composition, particle size, radium content, porosity and pore connectivity, etc.
摘要：
In this paper, factor analysis are used to study the early Paleogene paleoenvironmental evolution from the Sanshui Basin, and main conclusions can be obtained as follows: stage I (89.0-73.0m), relatively dry and relatively low temperatures; stage II (73.0-52.5m), warm and humidity of the climate and environment; stage III (52.5-22.5m), the ancient climate conditions change quickly, showing the alternating warm and humidity and dry; stage IV (22.5-0m), prevailing warm and moist climatic conditions.
作者机构：
[Chen, Liang] Univ S China, Res Stn Min Engn, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Chen, Liang] U;Univ S China, Res Stn Min Engn, Hengyang 421001, Hunan, Peoples R China.
会议名称：
1st International Conference on Energy and Environmental Protection (ICEEP 2012)
会议时间：
JUN 23-24, 2012
会议地点：
Hohhot, PEOPLES R CHINA
会议主办单位：
[Chen, Liang] Univ S China, Res Stn Min Engn, Hengyang 421001, Hunan, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
Change of paleoclimate;Organic matter types;Organic petrology;Sanshui Basin
摘要：
Organic matter types of the Early Paleogene core sediments from the Sanshui Basin were analyzed using organic petrology method. The organic matter is dominated by type II. The type I organic matter intermittently occurs at some intervals and type III organic matter only has occasional occurrence. Organic matter of types I, II1 and II2 should be deposited under arid, drier and humid climate condition, respectively. The uppermost part of the Xinzhuang Formation is characterized by type II1, related to a dry climatic condition. Sub-member A of the Honggang Member is dominated by organic Type II2, sandwiched by Type I and II1, reflecting a prevailing humid climatic condition. Sub-member B is characterized by alternations of types II2 and II1 or I, suggesting rapid fluctuations of humid and arid climatic condition. Sub-member C shows type II1 and I in the lower part and shifts to type II2 in middle and upper parts, suggesting a dry climate condition followed by a prevailing humid climatic condition.
