Geophysical exploration of tungsten–copper deposit using the wide-field electromagnetic method

deposit. The buried depth of the primary ore body exceeds 1000 m,
and the occurrence of the primary ore-controlling structure is
unknown, highlighting the need for deep exploration. In this study,
a wide-field electromagnetic method (WFEM) was applied for deep
W–Cu mine detection in the Zhuxi mining area. The relationships
among the target body's electrical properties, density, magnetism,
and lithology were established using physical property data and a
drill-resistivity sounding curve. Combined with known geological
data, a two-dimensional geological–geophysical section was drawn,
and a three-dimensional geological prospecting model was
established based on the inversion of a three-dimensional section
slice map of the WFEM. The results show that the WFEM can
reveal the distribution pattern of the primary ore-bearing structure
and horizon in this area. In addition, hydrothermal alteration activity
related to deeply buried rock masses can be obtained, providing a
strong basis for the study of metallogenic regularity at a 500–3000
m depth in the Zhuxi mining area and the prognosis for further
prospecting.