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Terramin Australia Ltd.
Summary
| Project: | Bird-in-Hand | |
|---|---|---|
| Deposit: | Bird-in-Hand | |
| Location: | Australia | |
| Commodities: | Gold-Silver | |
| Date: | 10/30/2018 | |
| Report Code: | JORC | |
| Report Type: | Resource Estimation | |
| Project Stage: | Pursuing Resource Increase/Upgrade | |
| Report details: | 30-10-2018: Terramin Australia Ltd. announces a Resource Estimation report for its Bird-in-Hand deposit at the Bird-in-Hand project. Updated mineral resource estimate at the project. The regional geology model is well documented and well understood in the | |
| Resources: | (Resource, I+I): 650Kt @ 12.6g/t Au, 5.8g/t Ag | |
| CP/QP: | [Resources]: Dan Brost (Independent) | |
| ABSTRACT: | The regional geology model is well documented and well understood in the Bird in Hand area. The controls on mineralisation are also well known and the current exploration model has proven its accuracy in the recent drilling. The area is considered prospective for further resource development and exploration. The regional nature of the structures indicates the faults associated with the gold bearing quartz reefs are deeply penetrating and are presumed to host mineralisation to depths of around 800 to 900 metres below surface. The Bird in Hand reefs occur in a structural deformation zone related to regional faulting and folding. The main body of gold mineralisation is fault controlled and favours development in ‘slaty’ type cleavage planes parallel to slightly sub-parallel to the bedding planes. The main mineralised zone is located on a fold limb of meta-sedimentary rock units. The folds structure appears as a regional open syncline that plunges to the southwest with mineralisation dips to the southeast at 45 to 50 degrees. These types of deposits can be significant gold producers that exploit minor mining volumes. Nearby analogues are the Bendigo – Ballarat district and the Union Reef area in the Northern Territory. An important concept in the modelling is that the deeper extents appear to be mineralised within 200 to 400 metres below the current mineralised intercepts. The gold mineralisation is presumed to cut across the local stratigraphy following the structurally control zone. This feature indicates that potential shallower mineralisation exists behind the interpreted foot wall zone The nature of the gold mineralisation appears to have trace accessory and sub-economic elements such as bismuth, copper, lead and zinc, with the main by-product being silver in minor amounts. Coarse gold is also evident and is potentially an important aspect of the mineral processing plant flow sheet. The host rocks described below underwent low grade metamorphism (greenschist to amphibolite type) in the Neoproterozoic Delamerian Orogeny. Locally the sediments have been altered to quartzite and marble during the metamorphism. All major gold mineralisation in the Adelaide Fold Belt are hosted by the meta-sediments and show no close spatial relationship to intrusive bodies. | |
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