A Study on the Relationship of Original Soil and Motherrock’s Laboratory Spectrum of Gold Metallographic Province in Western Qinling Mountains, China
- Issue 3, Pages: 220-224(1999)
Published:1999
DOI: 10.11834/jrs.19990311
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Published:1999
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通过西秦岭金矿化带中土壤与岩石实验室光谱的相关性分析与研究。探索该区表层壤覆盖条件下应用遥感信息寻找金矿床。研究表明,土壤与岩石两者光谱之间有很高的正相关性,并且在谱形上亦有相似性,使得利用该地区土壤光谱特征从遥感信息中提取出土壤覆盖层下的岩石光谱特征成为可能,为这种遥感技术找矿方法提供依据。
In this paper
We mainly present the method of exploring gold deposits covered by original soils from weathered rocks by means of analyzing and studying the laboratory spectrum’s relationship of both original soil and its weathering mother
r
ock. In western Qinling Mountains
there are several large scale gold deposits in metallographic provinces. In the past
remote sensing technology was used to investigate this area
however
gold deposits exploration still have not been broken out. As bed
r
ocks are covered by vegetation and soils
it is very difficult to efficiently apply remote sensing technology. During our study of remote sensing information characteristics on the earth
we found that most bed
r
ocks are fortunately covered by original soils in gold metallographic provinces. Therefore
we hope that gold deposits covered by original soils can be directly determined by using the spectrum features of the soils overlain the bed
r
ocks. The analyzed relevant samples were collected from several typical known gold mining areas
Pearson’s correlation analysis was adopted in order to study the linear correlation between soils and their corresponding rocks
at the same time
the obtained correlation coefficients were tested by means of Two
t
ailed method. To single layer samples (original soil directly covers bed
r
ock)
their correlation coefficients are in high positive relationship
the average number is about 0 942. To multi
l
ayer samples (more than one soil layer cover the bed
r
ock)
the correlation coefficients are lower
however
there are still 0 763 in positive correlation. According to our results
we can conclude that there is a high positive relationship to the spectrum of both original soil and its weathering mother
r
ock. It is possible for us to extract gold deposits information from covering original soil’s spectrum and provide a new method for gold deposits exploration.
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