Study on Intrusive Rocks Forming Period and Stages Division in Ludong Area
wang shi-jin1; wang lai-ming1; wan yu-sheng2; zhang cheng-ji3; song zhi-yong1; wang jin-guang1(1.shandong geological surveying instititute; shandong jinan 250013; china; 2.beijing shrimp center; beijing 100037; china; 3.shandong exploration institute of geology and mineral resources; shandong jinan 250013; china)
..............page:8-20,25
Analysis of the Power-induced Factors of the Karst Land Collapse in Tai'an City
cheng shi-cai1; guo jia-peng2; ma hai-hui1; wang jing3; yuan jie1(1.geologyical science and engineering college of shandong university of technology; shandong qingdao 266510; china; 2.shandong land and resources files museum; shandong jinan 250013; china; 3.yantai section of shandong geological environment monitoring center; shandong yantai 264000; china)
..............page:42-45
..............page:38-41,45