The Goldenville Trend extends approximately 8 km in and east-west direction roughly bisecting the Ming’s Bight Peninsula and the Point Rousse Complex (Figure GH1). The trend is named for the Goldenville Horizon; a regionally discontinuous banded iron formation that marks the transition from ophiolitic to cover sequence rocks. The Goldenville Horizon is correlative with the Nugget Pond Horizon of the Snooks Arm Group which hosted the former Nugget Pond Deposit. From1997 to 2001 Nugget Pond produced 168,748 ounces of gold. The Goldenville Trend hosts several significant gold prospects and showings including the Goldenville Mine, the Maritec Trenches, Green Cove Brook, Big Bear, Fuel Bog, and the Corkscrew Zone (Figure GH1).
Gold mineralization within the trend is either spatially associated with the iron formation (e.g. Goldenville Mine; Plate GH1) and exhibits characteristics of banded iron formation-hosted gold deposits or exhibits Pine Cove-style Fe-carbonate alteration haloes and disseminated pyrite (e.g. Pumbly Point). The trend also has the potential to host Rambler-style volcanogenic sulphide mineralization associated with volcanic rocks of the Point Rousse cover sequence. The Barry and Cunningham showing comprises small lenses of copper-rich massive sulphides exposed on the shoreline at Ming’s Bight.
In 1903, J.R. Stewart discovered gold-bearing quartz veins at what was to become known as the Goldenville Mine. Despite impressive surface facilities, including a ten-stamp mill, only 158 oz. of gold were produced from 1904 to 1906. In 1907, the Bishop and Harvey Fee Simple Mining Grant was granted and remained in place until the late 1980s. The fee simple was explored by a number of companies, but no significant work was undertaken until Granges Exploration Ltd. optioned the property and carried out geochemical and prospecting surveys and diamond drilling in 1987-1988. Six holes tested the immediate mine area with the best hole MH-11-88 returning an assay of 12.37 g/t Au over 1.8 m.
East of the Goldenville Mine the trace of the iron formation was covered by the Maritec property. Several companies explored this area including Noranda Exploration which carried out prospecting, geological mapping, soil geochemistry and geophysical surveys from 1986-1989. This work lead to the discovery of several small gold showings collectively referred to as the Maritec Trenches.
The horizon has potential to host both high grade gold mineralization associated with structurally controlled quartz veins and disseminated gold associated with pyritic mafic volcanic rocks. In the iron formation gold is associated with zones of magnetite destruction (resulting in pyrite) commonly around fault zones or within fold hinges. The destruction of magnetite results locally in notable magnetic lows in the magnetic map. Exploration in this gold trend thus focuses on areas adjacent to the iron formation associated with faults and coincident breaks in the magnetic pattern normal for the Goldenville Horizon. These geological and geochemical patterns in conjunction with soil geochemistry are useful vectoring tools identifying covered gold deposits.
Anaconda initiated exploration along the Goldenville Trend beginning in 2012 when a reconnaissance prospecting program was completed that resulted in the discovery of a new exposure of iron formation containing abundant disseminated pyrite. Grab samples from the showing assayed up to 4.2 g/t Au. In 2013 the Goldenville Horizon was included in the regional airborne magnetic and EM survey covering the Point Rousse Project.
In 2014, geological mapping was completed in the Goldenville area utilizing the airborne magnetic and electromagnetic survey to better define the extent of the Goldenville horizon. In late 2014, a total of 1,674 B-Horizon soil samples were collected along the trace of the horizon mostly east of the Deer Cove road and assayed for Au, resulting in numerous anomalies.
In the fall of 2015, Anaconda excavated three trenches adjacent to the Goldenville shafts. The trenching exposed the Goldenville Horizon and the structural footwall mafic volcanic rocks. A small shear zone cutting the oxide-facies iron formation contained a narrow quartz vein mantled by coarse pyrite which assayed 3.78 g/t Au over 0.35 m. As part of an ongoing digital compilation of the Point Rousse Project historical ground magnetic and VLF data were reprocessed.
The Goldenville Horizon west of the Goldenville Mine was explored by a number of companies including Noranda, U.S. Borax and Cuvier Mines. In 1987, Cuvier discovered the Corkscrew gold prospect and diamond drilling eventually outlined 3 narrow zones of gold. Diamond-drill highlights included 2.08 g/t Au over 3.9 meters (M87-2) and 3.09 g/t Au over 6 meters (M873). The property was acquired by Seaside Realty Ltd. and in 1994 an additional 11 holes were drilled on and to the west of the Corkscrew prospect. This phase of exploration also resulted in the discovery of the Sulphide zone and the Big Bear gold prospect. In 2009, Rambler Metals and Mining optioned the property and digitally compiled the historic data and tested the known mineralized zones with a 10 hole diamond-drill program. No additional mineralization was encountered and it was recommended that future work focus on finding new targets. In June, 2015, a significant portion of the former Seaside property, Mineral Exploration Licence 010238M staked in 1993, was converted to a mining lease and subsequently option to Anaconda. Anaconda is currently reviewing the all data and developing targets for follow-up.