DEPTH SLICE of 3D model at 80-meter depth PSEUDO-RELIEF of 3D model at 80-meter depth
Map of Loza GPR physico-lithological heterogeneity zones (anomalous zones) and proven Py and Aupolymetallic mineralized zones based on exploration borehole intersections. Historical EM anomalies are indicated in the next slide.
Combined maps of GPR physico-lithological heterogeneity zones and anomalous zones according to
excitation-at-the-mass method (EM) data (mise-a-la-masse, transmission in boreholes) and transient
electromagnetic method (TEM) data (transmission at surface).
This case illustrates Loza GPR’s potential in detecting confined pyrite-polymetallic ore bodies with complex morphology at depths in the order of 100m:
Mesozoic and Cenozoic weathering crusts and ore-hosting igneous-sedimentary rocks are highlighted on the GPR profiles
the depth of the bottom boundary of the weathering crust as determined by the GPR is consistent with well figures
pyrite-polymetallic ore body No.1 occurs at depths of 60 to 100 meters and is determined by contrast anomalies caused by active absorption of the sounding signal by a highly conductive object. The projection of the anomaly onto a horizontal plane emphasizes the complex morphology of pyrite-polymetallic ore body No.1
the group of anomalies in cross-section lines Б9–Б12 in the south-east part of the test range (unrelated to ore body No.1) was evaluated as prospective for hidden pyrite-polymetallic mineralization at depths of over 50 – 60m
the anomaly located by the GPR was confirmed by verification drilling as hidden pyrite-polymetallic mineralization