Rimfire Pacific Mining Limited · ASX:RIM
Rimfire Pacific Mining — Rimfire Pacific Mining NL — Shareholder Meeting (November 2006)
48 slides from Rimfire Pacific Mining's shareholder meeting presentation, Nov 29, 2006
Slide 1: Rimfire Pacific Mining NL AGM Exploration Activity Presentation
rimfire pacific mining nl (ASX “RIM”) AGM November 29th 2006 Exploration Activity Presentation Colin Plumridge Exploration Manager 29 November, 2006 1
Slide 2: Location of Rimfire projects
Location of Rimfire projects 29 November, 2006 2
Slide 3: Fifield Platinum
Fifield Platinum Fifield is historically the only developed Platinum field in Australia. No substantial workings for more than 70 years. Platinum and Gold alluvials were discovered in 1887 with reported production in excess of 20,000oz of Platinum. The vast majority of this was mined in areas which
Slide 4: Fifield Platinum
Fifield Platinum The Platinum is of a primary genesis which means it is from a hard rock source. Not Accretion or Secondary accumulation The coarse grain material occurs in the alluvials, eluvium, “subsoil clay” and bedrock This Platinum is expected to come from high grade structures, veinlets, pipe
Slide 5: Project Vision at Fifield Platina Prospect for Pt
Project Vision at Fifield Platina Prospect for Pt Target is coarse grain primary Pt, gravity separable, based on Platina Conceptual Model, Primary Source rich small structures (shear zones, dykes, pipes) A large corridor of mineralisation rather than a single lode is more likely to exist Potential o
Slide 6: How would a discovery look as a possible Mining Operation?
How would a discovery look as a possible Mining Operation? Coarse grain Pt, irregular distribution in host rock Normal drill/assay delineation of ore reserves not practical Suitable sample sizes (100kg to 1mt) are likely Relatively easy process, soft oxidised rock, crushed Gravity separation of Pt g
Slide 7: Fifield Platinum Project Area
Fifield Platinum Project Area RIM has four exploration licenses in the Fifield area with the Platina, Kars and Avondale prospects covering 217km2. Hylea EL6144 currently covers another 145km2. Historic Soil Mine Platina 1920’s 29 November, 2006 7
Slide 8: Fifield Regional Geology
Fifield Regional Geology Intrusives Rimfire Regional Tectonic Ultramafic Intrusions Framework 29 November, 2006 8
Slide 9: Key Target Areas Fifield
Key Target Areas Fifield Platina and associated corridor potential Target 1 Excellent metallurgy Likely low cost gravity separation in potential mining operation Large corridor 8km KARS check any coarse Pt not recognised previously Previous sampling Platina Work New sampling Area, current Highly wea
Slide 10: Platina Prospect System
Platina Prospect System IVANPLATTS SYERSTON Pt, Au Deep Leads 29 November, 2006 10
Slide 11: Corridor Of Interest – Magnetite Destruction
Corridor Of Interest – Magnetite Destruction 8km long potential Pt corridor Work area focused on 1km section First time ever discovery of coarse bedrock Pt at Platina-Gillenbine Unique exploration skills being Platina- developed (different to past Gillenbine explorers) Subsoil Clay examination Trenc
Slide 12: Exploration Initiatives
Exploration Initiatives (last 12 months Fifield Platina prospect Pt) Intensive review and focused exploration effort at Platina Mapping Auger Drilling Grain Morphology Petrology Soil sampling and geochemical work Enhanced geophysical analysis (ultra detail ground magnetics, radiometrics, airborne) T
Slide 13: 2006 Work Program at Fifield
2006 Work Program at Fifield Auger Drill Microscope Review Trenching Programs Clay Weathered Sample Processing Coarse Bedrock Pt Breccia Bedrock Grains 29 November, 2006 13
Slide 14: Simplified Geology Platina
Simplified Geology Platina Soil with Pt, Au Grains short travel No Gravel Historic Workings Dykes, Shear Zone(s), Breccias Mineralisation at contact & Breccia Zones Unusual rock types Strike length approx. 2km and 200m width (open both ends) Makes sense of all the historic and new data Appears un-re
Slide 15: Breccia Corridor Location RC Drill Program
Breccia Corridor Location RC Drill Program Large Alteration zone Comes to surface at commercial historic soil scrapes Appears to be direct connection Makes sense of the surface data Failed to intersect Pt grade Anomalous Cu, Cr, Pt horizons seen • 3,112 m • 37 holes • Hole Spacings > 50m 29 November
Slide 16: Geochemical Anomalies – Platina 2006
Geochemical Anomalies – Platina 2006 Pt in “pan concentrates” of RC drill powders. Background count for Pt is 15ppb, anomalous Pt is plus 40ppb, commonly Pt levels are 60 to 200 ppb, maximum seen was Pt 1930ppb (hole 10 anomaly A) Copper in RC drill powders, no concentration. Background count for Cu
Slide 17: Anomalous Zones Platina
Anomalous Zones Platina (relative to geology and RC program) Based on Clay Auger (125 plus) and RC Holes (34) Pt, Cu, Cr anomalous Wide spaced RC holes Linear orientation Coarse Grain Pt Clay areas localised to bedrock (non transported) Clays sit on Bedrock highs New Work Program August 2006 onwards
Slide 18: Platina Results Table of Percussion Drill Geochemistry and Auger Subsoil Clay Horizons
Platina Results Table of Percussion Drill Geochemistry and Auger Subsoil “Clay Horizons” June 2006 ANOMALY SUBSOIL CLAY SAMPLING RESULTS RC DRILL SAMPLES AND PAN CONCENTRATE GEOCHEMISTRY Pt Travel Distance Pt Grade (qualitative RC Drilling undertaken Comments on scale) Geochemistry A Low Good Limite
Slide 19: Platinum Contours Established – Sub Soil Clay
Platinum Contours Established – Sub Soil Clay (Sept 2006) 250 Auger Holes Clay grades vertically to weathered bedrock 800m length Widths 10~30m in a 200m wide zone Open in many cases RC Drilling did not sample contours well 29 November, 2006 19
Slide 20: Current Trenching Program
Current Trenching Program (As at November 2006) 7 trenches opened Subsoil clay sampled Pt zones confirmed Weathered Clay Bedrock Breccia identified “below subsoil clay” Magnetic character Corridor through trenches Sampling yields primary Pt grains, minimal travel (2m depths) Confirms Pt is from bedr
Slide 21: Trenching Program (cont.)
Trenching Program (cont.) Delineation of Pt mineralisation via rock processing Pt grains liberated and examined Processing facilities are being improved for faster throughput of samples A major geological advance has been achieved Bedrock testing is still at an early stage Grade determination phase
Slide 22: Recent Trench Profile Tr14
Recent Trench Profile Tr14 29 November, 2006 22
Slide 23: In Situ Coarse Primary Pt Grains
In Situ Coarse Primary Pt Grains (Binocular Examination) Bedrock Source Repeatable In situ Re-entrant angle Pt grains 1.2mm Pt Crystals Beneath Sub Soil Clay 0.7mm Contours Within new Clay Weathered Bedrock Breccia Discrete zones of Pt forming 29 November, 2006 23
Slide 24: Coarse Pt Grains Size Distribution
Coarse Pt Grains Size Distribution 29 November, 2006 24
Slide 25: The Current Approach At Platina
The Current Approach At Platina (Summary) Maximise the sampling and geological data from the existing trenches (7) Increase the sample processing throughput Using trials, determine ideal sample sizes to provide reliable grade estimates for coarse Pt in bedrock Advance the geological knowledge of the
Slide 26: Significance and Context for the Pt grains recovered from the Bedrock in Trenching
Significance and Context for the Pt grains recovered from the Bedrock in Trenching The Coarse Bedrock Pt recovered expected to occur as numerous small ultra high grade clusters within clay weathered breccia Isolated coarse Pt grains now seen are believed to be liberated into breccia during rock frac
Slide 27: Fifield Alluvials
Fifield Alluvials - Platinum market timing is favourable Historic data review (some important re-categorization) Site preparation with dam and plant infrastructure Claims granted Methodical test phase and exploration A uniform system and distribution “Debris Flow” Near surface Extensive and under ex
Slide 28: Summary of Exploration and analysis at Fifield
Summary of Exploration and analysis at Fifield (as at Nov 2006) Activity (1999~2006) Drilling R.C. & aircore Assaying, (large spaced) and Grav sep Auger, Costean, plant Prospect Air High Historic Advanced Metall- Metall-urgy Multi Resolution Data geophysical element, & trial, grain Mags & leach exam
Slide 29: DD Hole – Pt profile
DD Hole – Pt profile Historic KARS results 1980’s 5.7m@1.18g/t Pt 42.3m@0.43g/t Pt “Weathered” hard rock showed gravity recovery of >50% Re-sample and check for coarse grain Pt 29 November, 2006 29
Slide 30: Historic Drilling Results
Historic Drilling Results (other Rimfire prospects at Fifield) Kars Prospect 18m @ 0.8 g/t Pt Including 4m @ 1.6 g/t Pt from 42m 16m @ 0.9 g/t Pt Including 2m @ 3.4 g/t Pt from 66m 3m @ 0.8 g/t Pt Including 2m @ 1.1 g/t Pt from 114m 4m @ 0.8 g/t Pt Including 2m @ 1.1 g/t Pt from 4m Avondale Prospect
Slide 31: Project Discussion: Bingara Diamonds
Project Discussion Bingara Diamonds (Reasonable Target objectives) •Locate the Primary hard rock Source, more than 8 pipe- like features, key garnets and macro diamonds found in stream sampling and bulk sampling. •The path to solving the 100 year riddle? •Theory, exploration, evidence 29 November, 2
Slide 32: Bingara Diamonds Key Points
Bingara Diamonds Key Points The Bingara Copeton alluvial diamond fields 500,000 ct recovered since 1872. RIM is searching for the hard rock source of these alluvial diamonds. High Sodium Eclogitic Garnet as the key indicator. These diamonds are formed in a cool subducting slab and brought to the sur
Slide 33: The Peel Fault - NEFB
The Peel Fault - NEFB Good Drainages assist exploration Total 211km2 29 November, 2006 33
Slide 34: Rimfire's Historic Exploration at Bingara
Rimfire’s Historic Exploration at Bingara The collection of 118 stream sediment samples of about 100 kg. Bulk Samples (8) of about 50mt High resolution ground and airborne magnetics and radiometrics. The discovery of 5 macro diamonds south of any previous discoveries and numerous diamond indicator g
Slide 35: Bingara Tertiary Alluvial Diamond Deposits
BRAEMAR CAPELS CREEK • BINGARA TERTIARY UHP- crustal garnets ALLUVIAL DIAMOND DEPOSITS UHP- crustal FIVE MILE garnets 3 NEAR- MICROS MINTY NAREENA GLENIDLE 181 Ma basanite TOM & JERRY 1 MACRO TREVALLYN 1129 MACRO November, 2006 Diamond eclogite garnets 35
Slide 36: Mantle Garnet Types Bingara
MANTLE GARNET TYPES (W-E) BINGARA, by chemistry Andradite 100% Lherzolite 50% Megacrysts Eclogite II 0% Eclogite I M in ty (23) B C T revallyn N areen a (101) T o m & Jerry O th er (65) B raem ar F ive M ile (35) B C G len Id le C ap els C reek (135) (611) (768) (275) (2) Diamond in UHP Crustal 29 B
Slide 37: Diamond recovered in Rimfire Bulk Samples 2001
Diamond recovered in Rimfire Bulk Samples 2001 In total 5 Macro Diamonds already seen in bulk samples of stream sediments Need to tie this to the bedrock, with micro diamonds Field assessment, drilling (3.7mm, 0.265ct) Tom and Jerry 29 November, 2006 37
Slide 38: Current Field Review & Work 2006
Current Field Review & Work 2006 Contours, drainage, magnetics, aerials, reviewed New structural features Important Area observed New Anomalies identified Sampling 2,000kgs (-4mm) Indicator garnets… 29 November, 2006 38
Slide 39: Tom and Jerry Prospect
Tom and Jerry Prospect (Diatreme?) Bingara Basanite caps Basement Bingara Diamond Project. 29 November, 2006 39
Slide 40: Tom & Jerry Southern Extent
Tom & Jerry Southern Extent Structural target 29 November, 2006 40
Slide 41: Magnetics, Structure, Contours & Indicator Minerals Overlay
Magnetics, Structure, Contours & Indicator Minerals Overlay (November 2006) Drainages ideal for efficient sampling TJC samples being processed Garnet Indicators Garnets appear not to be from Basanite Scree Key magnetic anomaly upslope on drainage and historic sampling New drainages sampled 29 Novemb
Slide 42: Angular conchoidal fractured garnet
Angular conchoidal fractured garnet (orange almandine-pyrope). Publication in “US Economic Geology”, May 2006, 3 International Conferences • Major validation of local derived source for the diamonds ANALYSED 3458 BINGARA GARNETS Bingara garnet (Cr-poor pyrope) with conchoidal fracture. Is it IDENTIF
Slide 43: Recent 2006 field review Bingara
Recent 2006 field review Bingara Deep Lead Material? Pyroclastic Material? What’s under Tom & Jerry? 29 November, 2006 43
Slide 44: Summary of Exploration and analysis at Bingara
Summary of Exploration and analysis at Bingara Activity (1999~2006) Advanced 118 Detailed High Prospect Air High Resolution geophysical Stream Petrology Bulk Stream Resolution analysis and studies & Sample drainage Mags Ground Sample Air Mags aerial photo garnet (kgs) Sampling Mags (100kgs) review c
Slide 45: Planned Exploration at Bingara
Planned Exploration at Bingara Exploration goals are as follows: Refine and prioritise the prospective target areas Drainage sampling Structural interpretation Indicator minerals Subsurface “investigative drilling” for “hard rock” micro diamonds with high sodium garnets – diamond indicator minerals
Slide 46: Summary
Summary Coarse Grain Platinum confirmed in Bedrock on site at Platina First observation of such grains Multiple occurrences, forming zones 800m length Significant work and model generated at Platina Potential for Pt mineralised corridor of 8km Possibility for a significant discovery of primary coars
Slide 47: Contact us
Contact us Thank you John Kaminsky Executive Chairman + 61 3 9620 5866 www.rimfire.com.au rimfire@rimfire.com.au Colin Plumridge Exploration Manager The information in the report to which this statement is attached that relates to Exploration Results, Mineral Resources or Ore Reserves is compiled by
Slide 48: Disclaimer
Disclaimer This presentation contains “forward looking statements” as defined or implied in common law and within the meaning of the Corporations Law. Such forward looking statements may include, without limitation, (1) estimates of future capital expenditure; (2) estimates of future cash costs; (3)
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