Podiform Chromite - Mineral Deposit Profiles, B.C. Geological Survey
Geological Mapping techniques to enhance mineral exploration L.J.Hutton.
-
Upload
harvey-strickland -
Category
Documents
-
view
217 -
download
1
Transcript of Geological Mapping techniques to enhance mineral exploration L.J.Hutton.
![Page 1: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/1.jpg)
Geological Mapping techniques to enhance mineral exploration
L.J.Hutton
![Page 2: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/2.jpg)
![Page 3: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/3.jpg)
AGGSNA Airphoto - S of Cloncurry flown at 3500m (1935)
Commonwealth1:80K RC9 Airphoto – Camooweal area flown at 7500m (25 000’) (mid 1960s)
Improvements in Aerial photography
![Page 4: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/4.jpg)
![Page 5: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/5.jpg)
![Page 6: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/6.jpg)
Composite radiometric and colour-draped TMI image images of the Tommy Creek area showing outline of felsic
rocks
![Page 7: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/7.jpg)
Geology of the Tommy Creek area - based on BMR-GSQ mapping (1969) Hill & others (1992) with modifications by Withnall, 2006)
Milo beds
Mitakoodi Quartzite
Cover
Unnamed granite
Metadolerite
Porphyritic felsic volcanics
Corella Formation
Chumvale Breccia
Overhang Jaspilite
Quartzite conglomerate & sandstone
Marble, calc granofels, minor siltstone & sandstone
Muscovite-garnet schist
Graphitic schist
Mafic to intermediate lavas & clastics
Tommy Creek Microgranite
Argylla Formation
Undivided (graphitic schist, marble & calc granofels)
![Page 8: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/8.jpg)
![Page 9: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/9.jpg)
South-west Georgetown area:
Basement interpretation
![Page 10: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/10.jpg)
Reinterpretation of a ‘cover’ area – Julia Creek 1:250K – magnetic data
1st VD image showing mafic units from the Proterozoic Soldiers Cap Group and probable magnetic units in the newly recognised Millungera Basin
![Page 11: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/11.jpg)
![Page 12: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/12.jpg)
3D model of Quamby area
![Page 13: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/13.jpg)
![Page 14: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/14.jpg)
![Page 15: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/15.jpg)
The 6 blind men and the elephant
Poem by John Godfrey Saxe, cartoon by G. Renee Guzlas
![Page 16: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/16.jpg)
Five Questions
1. What is the geodynamic setting of the system?2. What is the architecture of the system?3. What are the fluids, their sources and
reservoirs?4. What are the fluid flow drivers and pathways?5. What are the metal transport and deposition
processes?
![Page 17: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/17.jpg)
• Geodynamic setting is a first-order constraint on commodity type and mineralisation style and needs to be an important consideration when developing exploration strategies
•Recognition of the range of geodynamic settings expands the range of possible mineralisation styles and opens up new exploration possibilities
• New and innovative mineralisation models based on updated geodynamic interpretations, combined with appropriate exploration strategies, can be primary drivers for greenfields exploration success
![Page 18: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/18.jpg)
![Page 19: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/19.jpg)
![Page 20: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/20.jpg)
![Page 21: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/21.jpg)
![Page 22: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/22.jpg)
Important points
1. Geological maps are a prime requirement for finding new deposits
2. Need to understand what we are looking for3. Need to understand the mineral system4. If we don’t find the deposit – we can find
vectors to the deposit5. For under cover targeting – need geophysics.
![Page 23: Geological Mapping techniques to enhance mineral exploration L.J.Hutton.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e9a5503460f94b9cbe9/html5/thumbnails/23.jpg)
Thank you