RE:Get ready Secova will find more then 6 hundred thousand Gauthier (1988) noted that there appeared to be a good correlation between the
visual estimation of quartz vein abundance and the gold grade. Gauthier (1988;
p. 17) also noted that the bulk tests yield gold concentrations 2 to 10 times that of
nearby percussion drill holes, apparently reflecting the coarse size distribution of
most of the gold. Sphinx reported another 64 smaller bulk tests in late 1987 and
winter 1988 (including nine re-tests of both 1986 and 1987-1988 samples). The
five richest gold concentrations reported were 3.36, 1.57, 0.75, 0.48 and 0.43 g/t
Au and g/t gold (Gautier, 1988). Another eleven of the 1987-1988 Sphinx tests
yielded between 0.20 and 0.33 g/t Au. None of the Sphinx reported bulk sample
results can be verified by the authors, but they formed part of the motivation for
Tres-Or’s mini-bulk testing program reported later under the “exploration”
heading. The 1987-1988 Sphinx bulk tests extend Au mineralization east to
within 50 m of Tres-Or’s composite channel samples (36937-36941) yielding 3.56
g/t over 4.02 m.
The bulk tests appear to support an association of high grades with the major northeast fault and the major shear zone. The 40 ton Pit 1946 test’s reported location near the center line of lot 10 and 200 feet south of the range line fits closely within a water-filled pit visible on the orthophoto image in Tres-Or’s geographical information system (GIS) database, supporting that the reported tests were undertaken, although not giving additional support to the reported results.
compressional shear event was followed by extensional vertical quartz veins striking north-south. Kinematic indicators again appear dextral. The extensional quartz veins carry coarse sulphides, iron oxide minerals and locally tourmaline. The compressional shear zone and subsequent extensional quartz veins strike over 800 m across the Duvay Gold Project. The same compressional and extensional deformation can be seen in rocks at the outcrop scale.
In addition to the two deformation events described above, north-east faults cut the Duvay deformation zone. These faults are associated with low-angle, sub-horizontal quartz planes, some of which carry coarse sulphides and perhaps gold. The fault plane, in at least two cases, appears to dip southeast, and may have a thrust component. It is not yet clear when these northeast faults formed relative to the compressional and extensional deformation events.
Overall, eighteen (18) surface samples were collected selectively during 2010 structural mapping. These samples have returned high gold (Au), silver (Ag) and copper (Cu) concentrations, as well as significant zinc (Zn). The highest gold concentrations in these samples are 199 grams per tonne (g/t) Au, 130 g/t Au and 3.01 g/t Au (Table 5). In the other 15 samples, gold values ranged between detection limit and 1.20 g/t Au. Notably, the sample with the most gold (at 199 g/t Au) also carried 4.55% Cu, as well as 104 g/t Ag. Other samples returned between detection limits and 1.31% Cu, and up to 45.8 g/t Ag, as well as 1.61% Zn. The samples were from outcrop and were selected to confirm mineralization during structural mapping (Borghetti et al., 2011). Samples yielding >1.0 g/t gold