A Prospecting Method for Hidden Iron Ore in Steeply Inclined Deep Area
A steeply inclined, deep technology, applied in the deep ore prospecting field of geological exploration, to achieve the effect of high positioning accuracy and large detection depth
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[0037] The scheme of the present invention will be described in detail below in conjunction with examples.
[0038] The magnetic parameter quantitative index of the deep concealed iron ore deposit prospecting of the present invention is:
[0039] (1) The characteristics of the magnetic anomaly in the distribution range of the concealed BIF-type iron ore-hosting strata are: ASM (total gradient modulus) of 1:50000 aeromagnetic anomaly > 50nT / m, such as figure 1 ;
[0040] (2) The magnetic anomaly characteristics of the deep concealed iron ore deposit occurrence area are: ASM of 1:50000 aeromagnetic anomaly > 200nT / m, such as figure 1 ; ΔT (the difference between the modulus of the total magnetic field strength on the magnetic anomaly point and the total magnetic field strength modulus of the normal field) > 300nT, as figure 2 ;
[0041] (3) The magnetic anomaly characteristics of the projected position of the head of the deep iron ore deposit on the surface are: 1:10000 high-p...
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