NI 43-101 Technical report, Surface diamond drilling ... - Iamgold
NI 43-101 Technical report, Surface diamond drilling ... - Iamgold
NI 43-101 Technical report, Surface diamond drilling ... - Iamgold
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R a r e E a r t h E l e m e n t E x p l o r a t i o n P r o g r a m M a r c h - 2 0 1 3<br />
W i n t e r - S u m m e r 2 0 1 2 P a g e | 103<br />
domain based on the vertical interpolation of the compilation surface map (Figure 5). All<br />
blocs under the Trenton limestone surface were given the rock type number associated to<br />
their domain (Table 22).<br />
Table 22: Block model coding.<br />
Type Name Description Block Model Code<br />
Topography Topo Topography based on header altitude. 0 “air” (above the surface)<br />
<strong>Surface</strong> OB Overburden 1 (above the surface)<br />
<strong>Surface</strong> Trenton Base of the Trenton limestone 2 (above the surface)<br />
Geology C1 REE mineralized dolomite 10<br />
Geology C2 Massive dolomite 20<br />
Geology C3 Nb mineralized, foliated dolomite or calcitite 30<br />
Geology C5 Nb mineralized, coarse grained dolomite 50<br />
Geology C6 Pyroxene bearing calcitite 60<br />
Geology S1 Syenite 110<br />
Within the block model project, a series of models were incorporated for recording the<br />
different attributes assigned and calculated in the block model development. These attributes<br />
are listed in Table 23 below.<br />
Table 23: Block model attributes.<br />
Attribute Description and Unit Update or creation<br />
Default value Mapping Data type<br />
name<br />
Content<br />
procedure<br />
Rock type Geologic code<br />
0 =Air<br />
1=Overburden<br />
2=Trenton limestone<br />
Limited by surfaces<br />
50% over topo<br />
50% over OB<br />
99% over Trenton<br />
10=C1<br />
C1 domain<br />
-<br />
20=C2<br />
C2 domain<br />
0 Rock type Integer<br />
30=C3<br />
50=C5<br />
60=C6<br />
110=S1<br />
C3 domain<br />
C5 domain<br />
C6 domain<br />
S1 domain<br />
Density Density value from<br />
actual data<br />
Air=0<br />
t/m 3 Updated from the rock code<br />
Overburden=1.8<br />
profile.<br />
2.86 Density Single<br />
Trenton=2.78<br />
Carbonatite=2.86<br />
TREO_PCT TREO grade % Interpolation, ordinary kriging 0 TREO Single<br />
CAT<br />
Resource classification<br />
1=Measured<br />
2=Indicated<br />
3=Inferred<br />
4=Mineral inventory<br />
-<br />
Based on the search ellipse<br />
and limited by depth with the<br />
drill hole mesh coverage.<br />
0 CAT Integer<br />
3400, chemin du Columbium, St-Honoré-de-Chicoutimi, QC G0V 1L0 Canada – tel. : 418 673-4694 Fax : 418 673-3179<br />
E-mail : info.niobec@iamgold.com www.niobec.com
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