Rare Element Resources
Bear Lodge Project
Canadian NI 43-101 Technical Report
October 9
th
, 2014
10135-200-46 - Rev. 0
14-22
1.
Only composites from the low-grade zone were used to estimate low-grade
blocks, and only composites from the high-grade zone were used to estimate
high-grade blocks.
2.
The adjustment factors summarized in Table 14.12 were used to adjust
composite grades before block grade estimation. Where the adjustment
factor for a block-composite oxide type is shown with an “x” in the table, that
oxide-type pairing was not used for estimation.
Table 14.12 - Adjustment Factors for Grade Estimation – Block Zone
And Composite Zone Combinations
Block
Oxide
Composite
Oxide
Low-Grade
High-Grade
REO
Fe
2
O
3
MnO
CaO
REO
Fe
2
O
3
MnO
CaO
Ox
Ox
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
OxCa
1.00
1.00
1.00
x
1.00
1.00
x
x
Tran
x
x
x
x
x
x
x
x
Sulf
x
x
x
x
x
x
x
x
OxCa
Ox
1.00
0.96
0.82
x
0.91
0.88
x
x
OxCa
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
Tran
x
x
x
x
x
x
x
x
Sulf
x
x
x
x
x
x
x
x
Tran
Ox
0.94
0.95
0.76
x
x
x
x
x
OxCa
1.00
1.00
0.84
1.00
0.81
0.78
0.66
1.00
Tran
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
Sulf
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
Sulf
Ox
0.94
0.93
x
x
x
x
x
x
OxCa
1.00
0.91
0.90
x
x
x
x
x
Tran
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
Sulf
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
(A.Noble, 2014)
14.9 Missing Grades for Fe
2
O
3
, MnO, and CaO
Whole rock assays were not done for early drill holes from 2009 and 2010, thus there
are missing assays for Fe
2
O
3
, MnO, and CaO. Since those holes are critical to
estimation of the Bull Hill Main Zones, the missing assays were estimated based on
deposit, oxide type, and SumREOx (TREO) grade, as shown in Table 14.13.
Because Fe
2
O
3
, MnO, and CaO are critical elements for acid consumption in the
process, it is recommended that the pulps be retrieved for the intervals with missing
assays and assayed for the full suite of elements used for later drilling.
