Davis Tube tests completed on 51 core samples from 20 drill holes at a
grind of 325 mesh (44µm) produced an iron ore concentrate grading 98.1%
Fe203 (68.7% Fe)
VANCOUVER, July 16, 2012 /CNW/ - Northern Iron Corp ("Northern") (TSX-V: NFE) (OTCQX: NHRIF) (FRANKFURT: N8I) today released results of Davis Tube (DT) metallurgy test work completed
on 20 drill holes. The testing was completed in conjunction with the
2011/2012 drill program on the Karas property, Ontario. The whole rock analysis results from the tests performed by SGS Canada
Inc., Lakefield, Ontario indicate an average iron content of 98.1% Fe2O3 (68.7% Fe) in the concentrates at a grind of 325 mesh with a silica
content of 3.9% SiO2
"The final Davis Tube metallurgical test results confirm the potential
of the Karas property and in conjunction with the past producing
Griffith mine, will produce the high grade concentrate required as a
feed stock for the production of Hot Briquetted Iron (HBI)" said Basil
Botha, President & CEO. "Overall, the management team is extremely
satisfied with these test results, as they are another necessary step
in de-risking this project."
Average Davis Tube Test Results at 325 Mesh (44µm)
|
|
Fe2O3 |
Fe
|
SiO2 |
Al2O3 |
MgO
|
TiO2 |
P2O5 |
MnO
|
Cr2O3 |
V2O5 |
DTWR
|
Fe rec.
|
|
Average
|
%
|
%
|
%
|
%
|
%
|
%
|
%
|
%
|
%
|
%
|
%
|
%
|
|
Head Assay
|
32.09
|
22.46
|
50.36
|
8.11
|
2.67
|
0.27
|
0.21
|
0.09
|
0.02
|
0.01
|
-
|
-
|
|
325 Mesh
|
98.10
|
68.67
|
3.89
|
0.46
|
0.16
|
0.06
|
0.02
|
0.05
|
0.08
|
0.02
|
24.7
|
75.17
|
The 51 composite samples were selected to represent a range of ore
grades from 10% to 32%Fe.
Of the 51 samples tested, several show individual Davis Tube
concentrates containing Fe grades as high as 70% and silica as low as
1.75%.
Northern Iron is continuing to test the Karas ore to determine the best
process for producing a direct reduction feed.
The drill program on the Karas property is now complete and assay
results for drill holes KA-11-28, 29, 31, 32 and 33 and 34 are tabled
below. The drill holes continue delineating and testing the true
thickness of the magnetite mineralization in the central western and
eastern part, and down dip extension and plunge of the magnetite
mineralized zone. The magnetite mineralized zone remains open at
depth.
The drill program consisted of 39 diamond drill holes, totaling over
17,000m, successfully delineated the magnetite mineralized zone. This
is a tightly folded and steeply north westerly plunging magnetite
banded iron formation (BIF) of the Algoma type (Taconite) within the
boundaries of the 100% owned Karas property in Ear Falls, Red Lake
mining division, Ontario, Canada.
The drill program covered an area of approximately 715 x 430 m, and
reached depths of 460m below surface in the central part of the
mineralized zone. The average depth for the program was 350m and is
consistent with optimizing future open pit design during the mineral
resource estimation and follows the pit design of the Company's nearby
Griffith mine.
The drill plan was reviewed by Roscoe Postle & Associates consultants
and designed to accomplish enough sample density for the production of
a NI 43-101 measured and indicated mineral resource estimate. The drill
plan consisted of parallel fences of drill holes 75m apart and within
the proposed fences of holes, drill holes were collared 50m apart. All
drill holes were collared in a south easterly direction and a
consistent 50 degree dip.
Highlights of holes KA-11-28, 29, 31, 32, 33 and 34 are summarized in
the table below.
|
Hole
|
|
From
|
To
|
Interval
|
Fe2O3
|
|
KA-11-28
|
|
4.56
|
113
|
108.44
|
28.75
|
|
|
including
|
4.56
|
81.0
|
76.44
|
34.62
|
|
|
and
|
234.32
|
264.94
|
30.62
|
15.08
|
|
|
and
|
292.25
|
304.73
|
12.48
|
22.19
|
|
|
and
|
408.22
|
477.65
|
69.43
|
26.09
|
|
|
|
|
|
|
|
|
KA-11-29
|
|
19.79
|
109.0
|
143.21
|
29.23
|
|
|
including
|
22.0
|
109.0
|
87.0
|
33.44
|
|
|
and
|
252.89
|
374.52
|
121.63
|
12.13
|
|
|
and
|
381.75
|
536.0
|
155.83
|
19.02
|
|
|
including
|
481.0
|
517.0
|
36.0
|
35.51
|
|
|
|
|
|
|
|
|
KA-11-31
|
|
25.75
|
289.0
|
263.25
|
25.45
|
|
|
including
|
132.0
|
260.48
|
128.48
|
28.45
|
|
|
Including
|
93.0
|
141.0
|
48.0
|
31.7
|
|
|
including
|
208.0
|
241.0
|
33.0
|
34.15
|
|
|
and
|
433.17
|
551.73
|
118.56
|
23.66
|
|
|
including
|
487.0
|
529.0
|
42.0
|
33.93
|
|
|
|
|
|
|
|
|
KA-11-32
|
|
131.75
|
162.75
|
31.0
|
28.76
|
|
|
|
178.0
|
339.38
|
161.38
|
28.74
|
|
|
including
|
178.0
|
199.0
|
21.0
|
33.62
|
|
|
and
|
216.0
|
308.0
|
92.0
|
32.32
|
|
|
|
|
|
|
|
|
|
and
|
413.92
|
516.1
|
102.18
|
13.62
|
|
|
and
|
524.25
|
643.0
|
118.75
|
22.90
|
|
|
including
|
591.0
|
625.0
|
34
|
35.88
|
|
|
|
|
|
|
|
|
KA-11-33
|
|
264.0
|
385.75
|
121.75
|
30.61
|
|
|
including
|
323.0
|
358.0
|
35.0
|
43.51
|
|
|
and
|
427.8
|
464.0
|
36.2
|
25.17
|
|
|
and
|
653.46
|
747.15
|
93.69
|
22.98
|
|
|
including
|
690.0
|
742.75
|
52.75
|
28.80
|
|
|
|
|
|
|
|
|
KA-11-34
|
|
72.2
|
109.75
|
37.55
|
28.19
|
|
|
and
|
113.0
|
202.4
|
89.4
|
29.39
|
|
|
including
|
113.0
|
202.4
|
81.0
|
31.06
|
|
|
including
|
146.0
|
195.0
|
49.0
|
33.52
|
|
|
and
|
243.4
|
318.15
|
74.75
|
18.26
|
|
|
including
|
268.55
|
310.0
|
41.45
|
26.35
|
|
|
and
|
524.3
|
613.15
|
88.85
|
26.41
|
|
|
including
|
553.0
|
588.8
|
35.8
|
35.94
|
All 2011 and 2012 drill holes were surveyed using a Reflex Maxibor II
probe to monitor drill hole deviations in magnetic disturbed
environments. All collars are surveyed using an APS differential GPS
with 3cm accuracy immediately after the holes are completed. The QA/QC
protocol system employed during the 2011-2012 exploration program
included procedures for monitoring the "chain-of-custody" of samples
and the insertion of blank samples in every batch of samples.
Cross-check analyses are planned to be conducted at a second external
laboratory from blind duplicate samples. Drill core samples are being
prepared at SGS Canada Inc. in Red Lake, Ontario and assayed at SGS
Canada Inc., in Lakeview, Ontario.
Raul Sanabria, P. Geo., is the Qualified Person for the purposes of
National Instrument 43-101 for the Karas Exploration Project. Mr.
Sanabria has verified and approved the contents of this news release.
Stock Options Grant
Northern also announces that Alberto Hassan, David Miller and Paul
Sarjeant, the directors of Northern, have been granted stock options
exercisable to purchase an aggregate amount of 700,000 common shares in
the capital of the Company at an exercise price of $0.15 per share for
a period of five years from the date of grant. All options vest
immediately.
About Northern Iron
Northern Iron is a mineral resource company engaged in reviving a past
producing iron mine and concurrent exploration of high quality iron ore
resources in the Red Lake mining division, district of Kenora, Ontario,
Canada.
Northern Iron holds 100% interest in minerals claims covering
approximately 14,672 hectares, comprised of the El Sol Property, the
past producing Griffith Property, the Karas Property, the Papaonga
Property and the Whitemud-Slate Property.
The Griffith Mine, previously owned by Stelco, produced 78.8 million
tonnes of iron ore for conversion to pellets and DRI from 1968-1989.
Total magnetic iron recovery was 86.26%.
Cautionary Statement
The foregoing information may contain forward-looking statements
relating to the future performance of the Company. Forward-looking
statements, specifically those concerning future performance, are
subject to certain risks and uncertainties, and actual results may
differ materially from the Company's plans and expectations. These
plans, expectations, risks and uncertainties are detailed herein and
from time to time in the filings made by the Company with the TSX
Venture Exchange and securities regulators. The Company does not assume
any obligation to update or revise its forward-looking statements,
whether as a result of new information, future events or otherwise.
Neither the TSX Venture Exchange nor its Regulation Service Provider (as
that term is defined in the policies of the TSX Venture Exchange)
accepts responsibility for the adequacy or accuracy of this release. No
stock exchange, securities commission or other regulatory authority has
approved of disapproved the information contained herein.