The Kilbricken project is a new high-grade Zn-Pb-Ag-Cu discovery and is the Company’s flagship project. The project is drilled over more than 1km and is ready to explore and expand within a 40km strike area.
Massive sulphide mineralization at Kilbricken most commonly consists of early massive-textured, fine-grained pyrite, galena and sphalerite cross-cut by coarse-grained sphalerite and galena, resembling sulphides found in the overlying veins. It differs from most other Irish zinc/lead prospects in that it is rich in silver, where the silver is generally associated with galena-rich zones.
The Kilbricken Project is considered to be highly prospective for discovering and developing important zinc-lead-silver sulphide deposits. The Kilbricken deposit, as currently delineated, is open along strike and both in an up-drip and down-dip direction. All projects on the Property are at an exploration stage; there are no mine development or mining operations.
Two main mineralized zones have been discovered to date:
- The Zinc Zone, being the initial discovery area, which has been drilled within an area of 950 metres by 400 metres, between 360-440 metres vertically below surface. Significant drill results in this zone include DH46: 20.5m @ 7.5% Zn, 9.9% Pb, 0.07% Cu, 74.6g/t Ag from 415.3m and DH06: 21.3m @ 11% Zn, 4.8% Pb, 0.06% Cu, 94.4g/t Ag from 441.9m.
- The Copper Zone was found later in the Lundin program and is drilled within an area of 400 metres by 200 metres, between 520-670 metres vertically below surface. Significant drill results in the Copper Zone include DH167: 4.5m @ 0.8% Zn, 2.6% Pb, 18.91% Cu, 867.6g/t Ag from 616 metres.
The main Kilbricken mineralization has been drilled within an area of 1,500 metres by 800 metres in plan view and remains open in most directions. Mineralization, defined as ≥ 4.0m @ ≥4.00% Zn Eq or 16m% Zneq where Zn Eq = Zn% +(Pb% x 1.15) + (Ag ppm x 0.037917), ranges in thickness from 2 metres to 31 metres thick and averages 7.5 metres thickness.
Table 1: Kilbricken better mineralized drill intersections.
|DH46||20.5m @ 7.5% Zn, 9.9% Pb, 0.07% Cu, 74.6g/t Ag from 415.3m|
|DH06||21.3m @ 11% Zn, 4.8% Pb, 0.06% Cu, 94.4g/t Ag from 441.9m|
|DH50||11.8m @ 9.8% Zn, 5.7% Pb, 0.07% Cu, 178.2g/t Ag from 484.6m|
|DH43||9.4m @ 4.1% Zn, 12% Pb, 0.52% Cu, 242.8g/t Ag from 442.1m|
|DH04||10.0m @ 13.8% Zn, 5.5% Pb, 0.08% Cu, 62.8g/t Ag from 448.1m|
|DH52||19.3m @ 7.2% Zn, 1.2% Pb, 0.18% Cu, 64.6g/t Ag from 425.7m|
|DH44||17.2m @ 2.9% Zn, 4.4% Pb, 0.11% Cu, 83.5g/t Ag from 447.9m|
|DH167||4.5m @ 0.8% Zn, 2.6% Pb, 18.91% Cu, 867.6g/t Ag from 616.5m|
|DH161||10.4m @ 8.4% Zn, 3.9% Pb, 0.09% Cu, 26.5g/t Ag from 607m|
|DH206||10.0m @ 0.9% Zn, 8.7% Pb, 0.16% Cu, 90.7g/t Ag from 619m|
|DH111||4.1m @ 21.5% Zn, 5.7% Pb, 0.1% Cu, 95.4g/t Ag from 447.6m|
Given the general flat lying and stratabound nature of mineralization and steep angles of all drillholes mentioned, the true thickness of the mineralized interval quoted is interpreted to be approximately 95% of the sampled thickness.
Lundin completed significant work on the property. A total of 278 drillholes for 134,000 m of diamond drilling was completed over the entire project. A total of 222 drill holes for 118,000 metres were drilled at the Kilbricken area. Lundin also undertook regional exploration in the remainder of the Clare Property, largely focussed on other Waulsortian-hosted zinc-lead prospects. Lundin carried out 616 metres of drilling at the Ballyvergin prospect with the objective of discovering additional zones of copper-silver mineralization. Lundin drilled a total of 2,370 metres on the Kilmurry Project, located within the Clare project area, 9 kilometres south-east of Kilbricken. In addition, significant surface geochemical and multiple geophysical surveys have been undertaken by Lundin and previous operators on the Clare project area. Of note are a 3D seismic survey over the main Kilbricken mineralization in 2011, and 2D seismic survey conducted in 2012 that consisted of 8 traverses (3-3.5 km long) over a total 10 kilometre strike length, spaced between 1-2 kilometre across the regional Kilbricken extensions.