Application of multifractal models to identify geochemical anomalies in Zarshuran Au deposit, NW Iran

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• 作者：Ahad Nazarpour (1)
  Nematolah Rashidnejad Omran (2)
  Ghodratolah Rostami Paydar (3)
  
  1. Department of Geology ; North Tehran Branch ; Islamic Azad University ; Tehran ; Iran
  2. Department of Geology ; Tarbiat Modares University ; Tehran ; Iran
  3. Department of Geology ; Ahvaz Branch ; Islamic Azad University ; Ahvaz ; Iran
  
• 关键词：Fractal ; Concentration ; area method ; Number ; size method ; Zarshuran ; Iran
• 刊名：Arabian Journal of Geosciences
• 出版年：2015
• 出版时间：February 2015
• 年：2015
• 卷：8
• 期：2
• 页码：877-889
• 全文大小：13,474 KB
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• 刊物类别：Earth and Environmental Science
• 出版者：Springer Berlin Heidelberg
• ISSN：1866-7538

文摘

The identification and separation of soil geochemical anomalies using the concentration-number (C-N) and concentration-area (C-A) methods was conducted at the Zarshuran Carlin-type Au deposit, NW Iran. Log-log elemental plots fitted with straight lines show C-N and C-A relationships of Au, As, Sb and Cu. The thresholds obtained from the two methods are similar. Element concentrations can be divided into three segments that correlate with a particular rock type including mafic rocks, serpentine schist (within the Iman Khan Anticline), Ghaldagh limestone and Zarshuran shale units. Various structural features and corresponding alteration show that geologic structures play an important role in the discrimination of geochemical anomalies and element distribution in soils.