THE APPLICATION EFFECT OF SOIL SURVEY IN RAINFOREST AREA OF LAOS
JIA Run-xing1,2,3, FANG Wei-xuan1,2
1. Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550002,China;
2. Beijing Institute of Geology for Mineral Resources, Beijing 100012, China;
3. Beijing Donia Resources Co. Ltd.,Beijing 100012,China
The work area is located in the north-central part of Laos which is covered by rainforest and close to the intersection between Truong Son North-West trend magma-tectonic belt and North-East trend Louangphabang magma-tectonic belt. The result of soil survey shows that Cu and Pb, Zn, Ag, Sn, Mo, Sb, Hg, As, Cd, Co, Bi together represent a major element association for ore deposits characterized generally by similar growth and decline trends. The metallogenic elements of Cu, Pb and Zn are mainly distributed in the contact zone between granite and carbonate, displaying obvious zoning with other coexisting or associated elements such as Mo, Sn, Bi, Ag and Cd. Cu anomalies are mainly in the inner side close to granite, whereas Pb and Zn anomalies are mostly in the outer side close to carbonate. The soil geochemical characteristics show that the ore deposits in the work area should belong to skarn type with large metallogenic potential.
贾润幸, 方维萱. 热带雨林景观区土壤测量的应用效果[J]. 物探与化探, 2011, 35(4): 443-447.
JIA Run-xing, FANG Wei-xuan. THE APPLICATION EFFECT OF SOIL SURVEY IN RAINFOREST AREA OF LAOS. Geophysical and Geochemical Exploration, 2011, 35(4): 443-447.
[6] Jia Runxing, Fang Weixuan, Hu Ruizhong.Geochemical characteristics and significances of major elements, trace elements and REE of NM copper polymetal deposit in Laos [J].Joural of Rare earths, 2010, 28 (2):305.