..............page:174-182
..............page:136-140
..............page:223-230
..............page:206-214
..............page:231-240
Comparison of three methods for baddeleyite U-Pb isotope dating of basic rocks
li hui-min1; li huai-kun1; chen zhi-hong1; xiang zhen-qun1; lu song-nian1; zhou hong-ying1; song biao2 1. tianjin institute of geology and mineral resources; china geological survey; tianjin 300170; china; 2. institute of geology; chinese academy of geological sciences; beijing shrimp center; beijing 100037; china
..............page:128-135
Nature and control of "dust storms" in the Beijing-Tianjin region,China-a case study of the dust storm in Beijing on April 16,2006
han tong-lin1; lin jing-xing1; wang yong1; zheng bai-yu2; song huai-long3; liu jiang-yong4; jiang gao-ming5; shi pei-jun6; zhang jing7 1. research center of contemporary ecoenvironmental geology; institute of geology; chinese academy of geological sciences; beijing 100037; china; 2. association for sustainable ecological and socio-economic development in poor areas of yenching alumni; beijing 100045; china; 3. institute of oceanology; chinese academy of sciences; qingdao 266071; shandong; china; 4. institute of international studies; tsinghua university; beijing 100084; china; 5. institute of botany; chinese academy of sciences; beijing 100093; china; 6. college of resources science and technology; beijing normal university; beijing 100875; china; 7. institute of hydrogeology and environmental geology; shijiazhuang 050061; hebei; china
..............page:117-127
..............page:200-205
..............page:150-154
..............page:241-248
..............page:215-222
..............page:155-165
GIS-based integrated quantitative assessments of mineral resources
chen yong-qing1; wang xin-qing2; chen jian-guo2; liu hong-guang3; huang jing-ning1 1. school of earth and mineral resources; china university of geosciences; beijing 100083; china; 2. school of mineral resources; china university of geosciences; wuhan 430074; hubei; china; 3. national geological library; beijing 100083; china
..............page:141-149
..............page:166-173
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