Exploration by Rimfire to date has revealed potential for a zoned Polymetallic Low Sulphidation Epithermal System, within a hydrothermally altered, quartz – feldspar porphyry sub-volcanic intrusive centre at the Eclipse Trend.
Gold and base-metal anomalism is now identified over >4.5km x 0.6kms and is open and only partially drill tested. Extensive low sulphidation epithermal quartz-chalcedony-carbonate-barite-sulphide vein & gossanous breccia float with malachite has been observed along with classic epithermal boiling textures. Bonanza gold up to 18.7g/t Au has been defined in rock chips associated with the gossanous epithermal veins with other highlight results including 2.4g/t Au, 40g/t Ag and 0.62% Cu, 0.78% Pb.
Potential exists for high grade vein, breccia and semi-massive sulphide replacement styles of gold-silver & base metal mineralisation. The Eclipse area is possibly analogous to the historic high grade Mount Boppy Au Mine (2Mt @ 7.6g/t Au for 800,000oz Au) based on geological & geochemical characteristics.
Very limited scope percussion has been conducted at four locations on the trend with the most stunning results returning from Eclipse south prospect of 4m @ 6.5% Cu & 2.3 g/t Au from 119m in Fi0588. Recent exploration advances based on assessment of multi-disciplinary data sets by the company is returning encouraging early stage results at the Transit prospect, this will be tested with percussion drilling shortly. The main prospects along this trend are:
In the larger Eclipse Trend area geological reconnaissance rock chip and soil sampling continues to define significant early stage extensions and complimentary results to the currently defined Eclipse targets. New targets called Twighlight Dam, CO2 / Shanklin Area, Transit and Moonrise, returned exceptional first pass rock chip results, and soil sampling was also undertaken.
The greater Eclipse area, coupled with Twighlight Dam environs, also appears to show a relationship with the Yoe’s Lookout target (click here – link to the Yoe’s Lookout Section) in defining a very large metals anomalous target area.
The Eclipse Trend is being interpreted as a zoned, polymetallic, low to intermediate sulphidation epithermal (precious & base metal) system, with multiple drill targets emerging over an area >2.7km x 0.6km which is currently open & lightly undrilled. The targets are associated with a hydrothermally altered, quartz – feldspar porphyry sub-volcanic intrusive centre identified via mapping & auger logging.
Extensive low sulphidation epithermal quartz-chalcedony-carbonate-barite-sulphide vein float & gossanous breccia float is present. Bonanza gold up to 18.7g/t Au has been defined in rock chips associated with the gossanous epithermal veins.
Multiple, high amplitude Au (±Cu-Ag-Pb-Zn-Ba-Bi-As) in auger geochemical anomalies, up to 800m strike & up to 80m wide (>20ppb Au, up to 550ppb Au) are being defined.
A high density of fine grained to medium grained, quartz-feldspar porphyries occur in the central part of Eclipse and are interpreted to represent a sub-volcanic felsic intrusive centre. Extensive selective pervasive hydrothermal alteration has been identified including: Quartz & Chalcedony, Carbonate, Sericite, Chlorite, Fuchsite, Barite, and Sulphides (pyrite & chalcopyrite). Classic multi-stage textures & paragenesis have been observed in low sulphidation epithermal vein float.
Significant Au, Ag, base metal (Cu-Pb-Zn) & pathfinder assay results suggest a zoned polymetallic system at Eclipse including:
Extensive Auger holes have been completed at Eclipse to date with drilling ongoing, and a high resolution 40m spaced E-W line aeromagnetic survey has been completed over the prospect. Discrete magnetic anomalies appear semi-coincident with auger geochemical anomalies at the intersection of regional N-S & NW-SE structures.