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Application of Selective Leaching of Mobile Metal Forms in Forestry Terrain，Daxing’ anling，Heilongjiang(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2006年第04期
Page:
43-48
Research Field:
Publishing date:

Info

Title:
Application of Selective Leaching of Mobile Metal Forms in Forestry Terrain，Daxing’ anling，Heilongjiang
Author(s):
WEN Xue-qin1; 2
1. School of Earth Sciences and Resources Management, Chang’ an University, Xi’an 710054, Shaanxi, China; 2. Opening Laboratory of Applied Geochemistry, China Academy of Geoscience, Langfang 065000, Hebei, China
Keywords:
mobile metal form;  high cold forestry terrain;  organic molecule;  gold deposit;  Daxing’anling;  Heilongjiang
PACS:
P595
DOI:
-
Abstract:
The selective leaching of mobile metal forms(MOMEO)is used on exploration for concealed mineral deposits in forestry terrain, Daxing’anling Mountains, Heilongjiang Province. The soil samples are subjected to MOMEO processing for selective leaching of four forms of gold: water-extractable gold, absorbed and exchangea- ble gold, organically bound gold and occluded gold in iron and manganese oxides. The results show that these four forms of gold can give indication to the concealed gold ore body. It is found that the anomalies of the water- extractable gold are not clear, but that of the absorbed and exchangeable gold and the organic bound gold are pretty good. It is also found that though the intensity of the organically bound gold is high enough, the anomalies of it is not stable due to the great dimensions of the organic molecule, which is difficult to be filtered through. In one word, the method of MOMEO in high cold forestry terrain can be used to explore the anomalies quickly and efficiently, but the influence of too much organic during the process of the extracting should be excluded.

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Last Update: 2006-12-20