Ground-borehole electrical source short offset transient electromagnetic detection method

The invention discloses a ground-borehole electrical source short-offset transient electromagnetic detection method, belongs to the technical field of mineral resource geophysical exploration and aims to provide a novel electrical source transient electromagnetic working method for ground transmitting and underground receiving. The method specifically includes: arranging multiple transmitting sources on the ground; receiving transient signals in a borehole; and analyzing and processing analog signals. The invention aims to solve the problems that working space of a short-offset transient electromagnetic method of an electrical source in the prior art is mainly the ground, and when a relatively thick low-resistance covering layer exists on the ground surface or electromagnetic interference is large, detection effects of a working mode with ground transmitting and observation working mode on a deep target body is generally poor. The method of the invention has good effects in mineral resource geophysical exploration. Figure 1