NWMP Target Compilation Aims Provide awareness of previously - - PowerPoint PPT Presentation

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NWMP Target Compilation Aims Provide awareness of previously - - PowerPoint PPT Presentation

Mar 09, 2023 224 likes •608 views

NWMP Target Compilation Aims Provide awareness of previously developed targets - What was their basis? - More broadly applicable? Consider limits to applicability What else could be done Potential to rank or consider

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NWMP Target Compilation

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  • Provide awareness of previously developed targets
  • What was their basis?
  • More broadly applicable?
  • Consider limits to applicability
  • What else could be done
  • Potential to rank or consider your own areas
  • To what extent do they agree or disagree?
  • Target Types
  • Empirical
  • Conceptual
  • Prospectivity

Aims

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CRICOS code 00025B Presentation Title | Date 3

Geochemical Anomalies

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CRICOS code 00025B Presentation Title | Date 4

Geophysical Anomalies

>10ppm U from Radiometrics 99.5th percentile bouguer gravity high Magnetics RTP greater than 2000nT

Lots more could be done with this!!

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Mineral Occurrence density

  • From GSQ Mineral Occurrence database
  • Classified according to the terms in that

database

  • 1km grid over entire inlier
  • Counting number of deposits within a 5km

radius of each point

Mineral Occurrence Densities

CRICOS code 00025B Presentation Title | Date 5

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Pmd*CRC Conceptual – Lawn Hill

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Pmd*CRC Conceptual – Lawn Hill

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Inter Interp F Faul ault t Archi hitec ectur ure

Sei Seismic da data Potential al field d data Cr Cross ss sect ctions

3D 3D Map ap

2D/3 D/3D geophys modellin lling WORMS MS

Proj

  • jec

ect Gener neration

  • n

Modelling g Major

  • r

Lithostrat at & Intrusive boundaries es and Faults Solid G Geol Mineral Depos

  • sits

Commo modity Groups Size Ranking Spatia ial A l Analy lysis is Len Length Tren end Hi Histo story Nume merica cal Modellin lling

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Pmd*CRC Conceptual – Lawn Hill

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Intersections Red or Blue Min > 50km Max > 80km Blue – NW trends Red – ENE trends Century

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Century region – supervised/unsupervised

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Knowledge-driven model

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SEDEX VEIN-STYLE

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Data-driven model

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SEDEX VS DIFFERENCE 11 layers – not clearly specified

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  • 1. Deposits Hosted Within the Upper Staveley/Lower Kuridala Stratigraphy.
  • Rheological contrast between Calc-silicates, Roxmere Quartzite, and Kuridala schists seen as a focus for

deformation and exploited during mineralization in late D3.

  • ‘Other’ rigid bodies at this stratigraphic position, e.g. SWAN Diorite, offer further rheological contrast and

focusses brecciation/secondary permeability and potential to host mineralization if within a fluid cell.

  • Redox potential of Staveley in contact with overlying reduced rocks (Figure 5.2) inferred as an important

ingredient.

  • Presence of ironstones yields discrete targets within this broader stratigraphic package.
  • E.g. Osborne-Kulthor, Mt Elliott-SWAN, and Merlin-Mt Dore deposits.
  • 2. Structural juxtaposition of Staveley with Other (Reduced) Packages.
  • Likely to be evidently structurally-controlled/hosted
  • Greater potential expected where Staveley is in structural contact with reduced packages such as Answer

Slate/ Toole Creek Formation.

  • Focussing relationship of early structural features, likely reactivated basement structures.
  • E.g. Starra line of deposits.
  • 3. Deposits hosted in Overlying Sequences, but Related to

Staveley:Granite:Fault Association at Depth.

  • Highly variable deposit-style possible.
  • Deposits may be structurally-focussed or within broader breccia bodies.
  • Intrusion of granite into the Staveley calcareous sequence inferred as driver for brecciation (CO2 release).
  • E.g. EH, Eloise

DMQ Targets – 3 styles

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Swan-style

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Starra-style

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Osborne/Kulthor - style

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NWQMP Targets

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NWQMP

CRICOS code 00025B Presentation Title | Date 17

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NWQMP

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NWQMP

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NWQMP

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NWQMP

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GSQ Quamby Project

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GSQ Quamby Project

CRICOS code 00025B Presentation Title | Date 23

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GSQ Quamby Project

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Full Model Subset Model

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Mira Geoscience Mt Dore

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Mira Geoscience Mt Dore

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Pmd*CRC i2 Prospectivity

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Pmd*CRC i2 Prospectivity – 12 layer

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Pmd*CRC i2 Prospectivity – 9 layer

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X X X

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GMEX Geomechanical models

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GMEX Geomechanical models

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GMEX Geomechanical models

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Available target layers

  • Empirical

 Geochem/Geophys/Occurrence anomalies

  • Conceptual

 NWQMP, DMQ Conceptual

  • Prospectivity/modelling

 Pmd*CRC, Quamby, Mt Dore, Geomechanical Find 3 prospect-scale areas that have some support from each of the above categories Why did you pick them and what would you do next?

Eastern Succession exercise

CRICOS code 00025B Presentation Title | Date 33

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G14 Lawn Hill model

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G14 surfaces modelled

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https://nwmp-data.s3-ap-southeast-2.amazonaws.com/NWMP+Timeslices.zip https://nwmp-data.s3-ap-southeast-2.amazonaws.com/NWMP_Timeslices_MI.zip

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Pick three areas which meet the following criteria

  • Isa/Century host rocks with 1000m of surface
  • One other characteristic which provides support, eg

 Previously targeted  Structural Justification  Stratigraphic justification (eg thickness change)  Empirical support Why did you pick them and what would you do next?

Lawn Hill area exercise

CRICOS code 00025B Presentation Title | Date 36

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Prof Rick Valenta | Director WH Bryan Mining and Geology Research Centre Sustainable Minerals Institute r.valenta@uq.edu.au www.smi.uq.edu.au

facebook.com/uqsmi linkedin/school/sustainable-minerals-institute

Thank you

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