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Volume 14 Issue 1
Mar 2003
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Hongmei Wang, Fengqing Yang, Shengying Qiao. Characteristics of Bacillus cereus Spore Counts in Soils with Underlying Gold Mineralization in Northwestern Sichuan, China: Results from a Pilot Study. Journal of Earth Science, 2003, 14(1): 8-15.
Citation: Hongmei Wang, Fengqing Yang, Shengying Qiao. Characteristics of Bacillus cereus Spore Counts in Soils with Underlying Gold Mineralization in Northwestern Sichuan, China: Results from a Pilot Study. Journal of Earth Science, 2003, 14(1): 8-15.

Characteristics of Bacillus cereus Spore Counts in Soils with Underlying Gold Mineralization in Northwestern Sichuan, China: Results from a Pilot Study

Funds:

the Ministry of Land and Resources 2000441

the Ministry of Land and Resources 95-02-002-03

the Ministry of Education(Outstanding Youth University Teachers Fund) 

the National Natural Science Foundation of China 40202011

  • Received Date: 14 Nov 2002
  • Accepted Date: 20 Dec 2002
  • A pilot survey on a microbial mineral exploration method based on soil Bacillus cereus spore counts was carried out across three different gold mining regions, which vary in soil type, climate condition and geological setting in northwestern Sichuan, China. B-horizon soils from these sites were analyzed for B. cereus spores, Au, Ag, Cu, Pb and Zn. The results show that the numbers of B. cereus spores generally increased in soils overlying gold mineralization. Specifically, elevated spore counts were found in samples slightly offset from the outcrops of orebodies, whereas soils directly above the outcrops of orebodies usually contained low spore counts. However, the background counts of B. cereus spores varied from place to place and were complicated by environmental and pedological factors, but the relative ratios of spore counts still were indicative of the underlying gold mineralization.

     

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