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Transcript of Sa explorers &_mining_conference_2011_muster_dam_inferred_resource
Mutooroo Magnetite Project
Inferred Resource Estimate of the
Muster Dam Magnetite Fe Deposit 2nd December 2011
Andrew Burtt, Project Geologist
8th SA Exploration and Mining Conference Adelaide, SA
Maiden JORC Inferred Resource
1.5 Billion Tonnes @ 15.2% DTR and 18.02% Fe (Head) at 10% DTR cut-off
with
228 Mt of contained magnetite concentrate
Concentrate Grade
Fe 69.8%
Al2O3 0.4%
P2O5 0.002%
S 0.002%
SiO2 2.8%
LOI -3.3%
Location
Braemar Ironstones
Regional TMI
Area 1
Area 2
Area 3
3,497 line kilometres with flight line
spacing of 50m and terrain
clearance of 25m
Heli-magnetics
Muster Dam Magnetic Anomaly Outcropping steeply east dipping, magnetite-
bearing diamictite and siltstone
Magnetic Modelling
Muster Dam TMI
Anomaly -
3D magnetic
modelling by MIRA
Geoscience
Magnetic Modelling
Muster Dam TMI
Anomaly -
3D magnetic
inversion by
MIRA Geoscience
Magnetic Modelling
3D Inversion of Muster
Dam anomaly -
0.4 SI Magnetic
Susceptibility
iso surface
2D Forward Modelling 15 Sections Modelled
Section:
MDN001 Section:
MDN001
Section: MDN001
Planned Resource Drillholes
Section:
MDN001
36 planned RC
drillholes for
10,600m on
400m sections
150m apart
Resource Drilling
Section:
MDN001
49 x RC drillholes for 13,031m
10 x Diamond drillholes for 2,883m
Diamictite
Siltstone
Resource Drilling
Section:
MDN001
Section MDN001
Excellent correlation between modelled and drilling
Section:
MDN001
Section MDN001
Resource Drilling Excellent correlation between modelled and drilling
Davis Tube Recovery (DTR) 2,355 5m RC composite samples for DTR/XRF at 45µm grind size
558 5m ¼ core samples for DTR/XRF at 45µm grind size
Head sample input (20g) Magnetite concentrate sample recovered (DTR)
DTR or Mass Recovery
= Wt Mag(g) / Wt Head(g)
QA/QC
0
5
10
15
20
25
0 10 20 30
DT
R%
Fe% head
Mutooroo Magnetite Project Resource Drilling Standards
Standard 1 (High DTR)
Standard 2 (Moderate DTR)
15
16
17
18
19
20
21
22
23
24
25
553920
554140
554440
554620
554940
555140
555340
555620
555840
558120
556540
556740
556440
557020
557120
558240
558420
124040
558720
551540
DT
R (
%)
Sample ID
STD: STD1
Created our own Standard as there are no commercially available magnetite Fe standards
QA/QC
0
5
10
15
20
25
30
35
40
0 10 20 30 40
Du
pli
cate
Sam
ple
DT
R%
Alpha Sample DTR%
Field Duplicates DTR%
13 – 18% QA/QC samples including
standards, blanks, field duplicates and lab check samples
QA/QC
Diamond Drillholes • Twin of RC holes to confirm RC is
representative
• Confirm dip of sequence – Alpha-Beta
measurements
• SG measurements
0
5
10
15
20
25
30
35
40
45
0 50 100 150 200 250 300 350
DT
R%
Depth (m)
MDD001 vs MD003 DTR
MDD001 DTR%
MD003 DTR%
Resource Modelling H&S Hellman & Schofield Pty Ltd Independent review by Hellman & Schofield to produce
Inferred Resource:
• 2,913 x 5m DTR composites from drilling
• 280 estimated from magsus using Conditional
Expectation statistical technique
• Total of 3,193 x 5m composites used for resource
estimation
• Due to curved nature of deposit 4 sub-domains modelled
• Unconstrained Ordinary Kriging used with 10% DTR
cutoff and no top cut with a block size of 100 x 50 x 20m
• Av. density of 2.96 g/cm3 estimated from 2,357 x 5m
downhole geophysics composites with density assigned
to ore blocks
• Only Fresh Rock resource reported
1
2
3
4
Resource Modelling
4
H&S Model validation demonstrates that the block model honours the drill hole
composite grades
0.00 - 6.00
6.00 - 10.00
10.00 - 14.00
14.00 - 18.00
18.00 - 22.00
22.00 - 10000.00
model extents
DTR_Mag range
blocks this lay er only
487000 488000 489000 490000 491000
6407000
6408000
6409000
6410000
6411000
Plan Plot of DTR_Mag
RL slice: 80.0 +/- 10.0
East
No
rth
0.00 - 6.00
6.00 - 10.00
10.00 - 14.00
14.00 - 18.00
18.00 - 22.00
22.00 - 10000.00
DTR_Mag Range
Point Data
UNIVARIATE STATISTICS
Mean: 12.74425
Variance: 55.66199
CV: 0.58542
Minimum: 0.00
Q1: 7.2500
Median: 13.300
Q3: 17.4800
Maximum: 62.1900
No. of Data: 3193
0.00 - 6.00
6.00 - 10.00
10.00 - 14.00
14.00 - 18.00
18.00 - 22.00
22.00 - 10000.00
model extents
DTR_Mag range
blocks this lay er only
489500 489600 489700 489800 489900 490000 490100 490200
-300
-200
-100
0
100
200
300
400
Section Plot of DTR_Mag
Northing slice: 6409100.0 +/- 50.0
East
Ele
v
0.00 - 6.00
6.00 - 10.00
10.00 - 14.00
14.00 - 18.00
18.00 - 22.00
22.00 - 10000.00
DTR_Mag Range
Point Data
UNIVARIATE STATISTICS
Mean: 12.74425
Variance: 55.66199
CV: 0.58542
Minimum: 0.00
Q1: 7.2500
Median: 13.300
Q3: 17.4800
Maximum: 62.1900
No. of Data: 3193
Resource Modelling
DTR Mag Cut Off % BTonnes DTR Mag Recovery % Fe Head Grade %
6 1.60 14.84 17.96
8 1.58 14.93 18.02
10 1.51 15.18 18.20
12 1.36 15.64 18.57
14 1.02 16.47 19.17
16 0.54 17.74 20.01
18 0.18 19.38 20.77
Muster Dam Concentrate Grades
Category
Billion Tonnes
Magnetite DTR %
Fe% Al2O3 % P2O5 % S % SiO2 % LOI %
Inferred 1.5 15.2 69.8 0.4 0.002 0.002 2.8 -3.3
Exploration Target
Target Area No of
Bands
Strike (km) Thickness
(m)
Volume (Bill m3) Tonnage (Bt)
Muster Dam 1 5.5 to 6.5 100 to 325 0.30 to 0.45 1.0 to 1.5
Muster Catch 2 1.7 to 2.3 80 to 150 0.03 to 0.06 0.05 to 0.15
Muster South 1 1.7 to 2.3 80 to 120 0.03 to 0.06 0.05 to 0.15
Duffield 1 1 3.0 to 3.5 100 to 300 0.09 to 0.13 1.0 to 1.5
Duffield 2 2 1.5 to 2.5 80 to 100 0.25 to 0.40 0.1 to 0.3
Surrender Dam 4 3.0 to 3.5 80 to 150 0.10 to 0.15 0.2 to 0.4
Totals 16.4 to 20.6 80-325 0.80 to 1.25 2.4 to 4.0
The term “Exploration Target” should not
be misconstrued as an estimate of
Mineral Resources and Reserves as
defined in the JORC Code (2004), and
the term has not been used in that
context. The term is conceptual in nature
and it is uncertain if further exploration
will result in the determination of a
Mineral Resource. Refer Clause 18 of
the JORC Code (2004).
Future
JORC statement directly
comparable to that for
CAP’s Hawson’s Project
25km distant
Grind optimisation &
Scoping Study
underway; for
completion in February
2012
Measured resource at
Muster Dam
Inferred resource at
Duffields
Acknowledgements
Mutooroo Pastoral Company
Sumitomo Metal and Mining Oceania
Frank Walsh Drilling
Macquarie Drilling
ALS Laboratories
AMDEL
Hellman & Schofield
Euro Exploration
Minotaur personnel
Adelaide University students
Disclaimer This presentation has been prepared by the management of Minotaur Exploration Limited (ASX: MEP) for the general benefit of
analysts, brokers and investors and does not constitute specific advice to any particular party or persons. Information herein is
based on publicly available information, internally developed data and other sources. Where an opinion, projection or forward
looking statement is expressed in this presentation, it is based on the assumptions and limitations mentioned herein and is an
expression of present opinion only. No warranties or representations are made or implied as to origin, validity, accuracy,
completeness, currency or reliability of the information. MEP specifically disclaims and excludes all liability (to the extent permitted
by law) for losses, claims, damages, demands, costs and expenses of whatever nature arising in any way out of or in connection
with the information, its accuracy, completeness or by reason of reliance by any person on any of it. Where MEP expresses or
implies an expectation or belief as to the success of future exploration and the economic viability of future project evaluations,
such expectation or belief is expressed in good faith and is believed to have a reasonable basis. However, such projected
outcomes are subject to risks, uncertainties and other factors which could cause actual results to differ materially from projected
future results. Such risks include, but are not limited to, exploration success, metal price volatility, changes to current mineral
resource estimates or targets, changes to assumptions for capital and operating costs as well as political and operational risks and
government regulatory outcomes. MEP disclaims any obligation to advise any person if it becomes aware of any inaccuracy in or
omission from any forecast or to update such forecast.
Information in the foregoing presentation that relates to Exploration Results, Mineral Resources or Ore Reserves is
based on information compiled by Dr A. P. Belperio, who is a Director and full-time employee of the Company and a
Fellow of the Australasian Institute of Mining and Metallurgy. Dr A. P. Belperio has a minimum of 5 years experience,
which is relevant to the style of mineralisation and type of deposit under consideration and to the activity that he is
undertaking, to qualify as a Competent Person as defined in the 2004 Edition of the “Australasian Code for Reporting of
Exploration Results, Mineral Resources and Ore Reserves”. Dr A. P. Belperio consents to inclusion in the presentation
of matters based on his information in the form and context in which it appears.
Competent Person’s Statement