Abstract:

Quantitative estimation of mineral resources is an important step in resources assessment. Five methods such as geological volumetric method, quantification theory type I，Delphi method, grade-tonnage model method and magnetic quantitative estimation method are used in the studied area. The first four estimation results are as follows: 1.49 billion tons, 2.022 billion tons, 0.455 billion tons and 1.335 billion tons, respectively. There exist 0.502 billion tons (gradeⅡresource volume) and 3.046 billion tons (grade Ⅲ resource volume) by the last method.  The first method takes advantage of a variety of geological conditions; the result is accordance with the actual case in the studied area. Therefore, the method shows better performance in this area.