NI 43-101 Independent Technical Report Mount ... - Adex Mining Inc.

NI 43-101 Independent Technical Report Rev 02 January 22 nd , 2010
Mount Pleasant North Zone Preliminary Assessment (Project 6526-03) 1-3
subsequently modelled into GEMCOM solid models. The estimated in-situ undiluted tonnages
and metal compositions of the A- and B-Type Blocks are listed in Table 1-1.
SUB-ZONE
Table 1-1: North Zone A and B Type Blocks Estimate
NO.
BLOCKS
TONNAGE
[2,3]
%Sn g/t In %Zn %Cu %Pb %As %Bi %WO 3 %Mo
INDICATED RESOURCE
A-TYPE BLOCKS
#4 Tin Lode 2 129,000 0.58 153[1] 1.85 0.19 NA NA NA NA NA
DTZ and Upper DTZ 33 1,338,000 0.94 229 1.89 0.27 0.05 1.62 0.09 0.10 BD
B-TYPE BLOCKS
#4 Tin Lode 3 36,000 0.20 138[1] 1.87 0.14 NA NA NA NA NA
DTZ and Upper DTZ 16 391,000 0.25 179 2.12 0.16 0.03 1.31 0.07 0.16 BD
Total Indicated 54 1,894,000 0.76 212 1.93 0.24 NA NA NA NA BD
INFERRED RESOURCE
A-TYPE BLOCKS
#1-3 Tin Lodes 12 168,000 0.79 140[1] 2.45 0.30 NA NA NA NA NA
#5 Tin Lode 2 36,000 1.55 134 2.39 0.25 0.12 4.50 0.04 0.13 BD
North Adit 9 320,000 1.13 32 0.25 0.19 0.04 2.88 0.12 0.14 BD
B-TYPE BLOCKS
#1-3 Tin Lodes 4 139,000 0.30 131[1] 2.21 0.16 NA NA NA NA NA
#5 Tin Lode 8 172,000 0.29 428 3.80 0.24 0.04 1.59 0.04 0.17 BD
North Adit 8 165,000 0.62 145 1.68 0.25 0.08 1.64 0.10 0.09 BD
Total Inferred 43 1,000,000 0.74 154 1.82 0.22 NA NA NA NA NA
Table Notes:
[1] Estimate
[2] Tonnages are rounded.
[3] Mineral resources that are not mineral reserves do not have demonstrated economic viability.
BD = below detection limit
NA = not analysed
The results compare favourably to the 0.7 Sn equivalent cut-off tonnages and grades derived
from the sensitivity analysis reported in the independent NI 43-101 mineral resources estimation
of the Sn-In-Zn North Zone deposits completed by WGM and SGS-Geostat in May, 2009. It is
recommended that additional diamond drilling, surface sampling and additional indium analyses
of historical core be completed to ensure that #1-3 Tin Lode, North Adit and #5 Tin Lode can be
upgraded from a NI 43-101 inferred resource level to an indicated resource level.
1.4 Mining
The DTZ ore lodes and lenses are mostly formed as vertical and sub-vertical elongated narrow
bodies closely spaced and surrounded by lower grade material and waste rock. The lower grade
material and waste rock gaps between ore lenses will be used as natural pillars for maintaining
stope wall stability during mining.
A number of the ore lodes and lenses lie close to the surface with a few protruding to the surface.
Series of these lodes and lenses stretch from near surface down to a depth of approximately 250
Thibault & Associates Inc.
Applied Process Chemical Engineering