Innovation, Collaboration and Discovery Geoinformatics Exploration Inc. 3D Modeling and near-mine...
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![Page 1: Innovation, Collaboration and Discovery Geoinformatics Exploration Inc. 3D Modeling and near-mine exploration targets at the Saulyak.](https://reader035.fdocuments.us/reader035/viewer/2022081603/56649f285503460f94c40109/html5/thumbnails/1.jpg)
Innovation, Collaboration and Discoverywww.geoinformex.com
Geoinformatics Exploration Inc.3D Modeling and near-mine exploration targets
at the Saulyak Mine, Ukraine
A summary presentation prepared for Eurogold LtdMay 2005
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Innovation, Collaboration and Discoverywww.geoinformex.com
Stage One Saulyak Project
This presentation represents a short summary of some of the key findings of the Geoinformatics / Eurogold Saulyak Stage One project.
For more detailed information and further results please refer to the report.
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Innovation, Collaboration and Discoverywww.geoinformex.com
Stage One Saulyak Project *Summary of project scope, aims and process*
• Conduct underground mapping and locate in 3D space.
• Understand the geometry of the main units and their relationship to mineralisation
• Provide training to Eurogold geologists on underground mapping techniques
• To establish a geometric framework for near-mine (in-mine) exploration
*For further details please refer to the detailed project report
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Innovation, Collaboration and Discoverywww.geoinformex.com
Underground Mapping
3D representation of “factual” geology
• Detailed mapping focused on the main ore-zones including:
•Structure•Alteration•Lithology•Veins
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Observations from Underground mapping
Geology, veining and alteration*
• SchistsChloritic and sericite schists are observed throughout the mine
• MarblesMassive foot wall marble(s) Occasional schistose marbles
• VeinsQuartz, CarbonateQuartz / Carbonate
• Alteration (from vein boundaries outwards)SilicifcationSericite-carbonate +- pyriteSericite – carbonate – chloriteChlorite – ankeriteChlorite – calcite
*For further details please refer to the detailed project report
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Innovation, Collaboration and Discoverywww.geoinformex.com
3D geological modeling
Focus on main orezone between 498 and 468 levels
• The footwall marble
• The Trench marble
• Alteration zones
• Mineralised zones •498 Level
•468 Level
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Innovation, Collaboration and Discoverywww.geoinformex.com
3D geological modeling
Focus on main orezone between 498 and 468 levels
• The footwall marble
• The Trench marble
• Alteration zones
• Mineralised zones
![Page 8: Innovation, Collaboration and Discovery Geoinformatics Exploration Inc. 3D Modeling and near-mine exploration targets at the Saulyak.](https://reader035.fdocuments.us/reader035/viewer/2022081603/56649f285503460f94c40109/html5/thumbnails/8.jpg)
Innovation, Collaboration and Discoverywww.geoinformex.com
Implications for near-mine exploration targetingThe Gap Zone
•Mapping in the gap zone revealed normal faults off-set to the ore-body.
•The downthrown portion of this zone remains untested and forms a target beneath 498RL
Fault off-set. NW is down thrown
Wall Map
NW SE
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Innovation, Collaboration and Discoverywww.geoinformex.com
Implications for near-mine exploration targetingTwo ore bodies not one!
• Previous interpretations linked ore bodies and marbles on the 468 and 498 levels with the surface trenching / outcrop of the mineralised zone.
• Geological mapping and modeling revealed that the marbles don’t line up. (possibly fault offset, or separate lenses altogether).
• Mapping in the access adit on the 498 level revealed a marble and alteration zone that probably represents the down-dip continuation of the trench marble and surface mineralised zone. In the 498 adit this has not been sampled and forms an exploration target.
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Innovation, Collaboration and Discoverywww.geoinformex.com
Implications for near-mine exploration targetingSouthward Continuation of mineralisation
• On the 468 level, the geological modeling of the marble and the location of mineralisation shows a change in strike from NW-SE to N-S.
•This is consistent with plunges in modeled alteration zones.
•The southern most cross-cut has some of the highest grades on this level including 52g/t, 10g/t, 9.6g/t and this continuation has not been adequately tested.
• This change in strike has implications to the location of the stope definition drilling to be carried out shortly
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Innovation, Collaboration and Discoverywww.geoinformex.com
SummaryAnd conclusions
• The Saulyak ore-body is complexly deformed, and previous studies have mis-interpreted the 3D geometry of the mineralised zones and the key structural / lithological units.
• Three new in-mine targets have been identified.
• In particular, this project recognised that there are two sub-parallel systems in the main part of the mine.
• It is paramount that the findings and models from this study are used in resource definition / stope delineation drilling to be carried out shortly.
• There is still a lot to learn about this system. Extensional exploration for continuations of the mineralised zones to depth, or the recognition of new mineralised horizons is contingent on:
successful validation of the the drill database. further 3D geological modeling that extends the in-mine model into extensional exploration areas constant collection of in-mine geological data when new areas become available. testing of hypotheses presented in this presentation as well as the report
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