The Do Drop occurrence is located about 37 kilometres northeast of Kimberley and 1.6 kilometres west of Wildhorse River.
The Do Drop occurrence is underlain by dolomite and limestone of the Cambrian Jubilee (or Lyell or Sullivan) formations that are intruded by the “Do Drop” stock of Cretaceous age. The Do Drop stock is located near the headwaters of Wildhorse creek and is predominantly monzonite/quartz monzonite in composition ranging to syenite. Granite and granodiorite are also listed as components. Textures range from medium-grained to porphyritic. Alteration types include carbonate and potassic. The strata have been noted as hornfelsed along the intrusive contact. Also, present are several zones of calc-silicate skarn.
Prospecting at the Do Drop in 2005 by Ruby Red Resources returned auriferous results from numerous quartz veins located within a large quartz monzonite stock. Quartz veins within the intrusive were noted as sheeted, striking 46 degrees and dipping 24 degrees to the southeast. The veins had a unique porcelain-like texture and were seen in stacked zones greater than 1.5 meters thick. They contained galena and bismuth and returned values up 5.60 grams per tonne gold, greater than 100 grams per tonne silver, and 0.42 per cent lead (Sample DD05-13, Assessment Report 28268).
Copper mineralization, in the form of azurite, malachite, chalcopyrite and native copper, was discovered in the stock in numerous locations with representative grab values more than 0.15 per cent copper were obtained. Copper occurs both in fractures and as disseminations. Zones of fracturing with copper mineralization have been noted along the dolomite/intrusive contacts as well.
Near the Do Drop occurrence rock sample SKX16-27 assayed 0.225 per cent copper and sample TKX 6 assayed 0.45 per cent copper (Assessment Report 36649).
Work History from Assessment Report 36649
The earliest recorded work was conducted in 1980 by Dekalb Mining Corp. which included geological mapping, stream sampling and line cutting for later soil sampling (Assessment Report 7896). One outcrop is indicated on the map containing pyrite and malachite hosted in a skarn.
Between 1980 and 1981 soil sampling at 100-metre spacing was conducted along with geological mapping at 1:5000 scale. In 1982 trenching of soil anomalies lead to rock sampling and more geological mapping along with 13 kilometres of VLF EM survey lines (Assessment Report 11078).
In 1983 Dome Exploration Ltd. began exploring the northern Wild Horse Creek area and conducted a regional soil survey and prospecting (Assessment Report 12989). In 1985 Dome began cutting line for an IP survey and collected 60 soil samples from a grid northwest of the 1983 grid (Assessment Report 14855). The IP survey was never conducted, and Dome instead drilled six diamond drill holes on the property (Assessment Report 15906). Anomalous values of copper were assayed in the drilling, but no economic intervals of copper mineralization were intersected. In 1991 Fairclough and Johnstone staked a property south of the syenite intrusion drilled by Dome Ltd. and conducted prospecting, identifying three showings of interest (Assessment Report 21423).
Between 1992 and 2005 Dome Ltd. and other claim owners abandoned their projects and Ruby Red Resources staked and began exploring the area now referred to as the Do Drop (Assessment Report 28268). Ruby Red advanced the Do Drop project with elevation contour soil geochemistry (Assessment Report 29060). Elevated copper values in soils were common throughout the property with anomalous values up to 2289 parts per million copper.
In 2008 additional prospecting was conducted with mapping to establish an extent to the quartz monzonite intrusion and investigate the source of copper (Assessment Report 29942). In the following year, Ruby Red sampled soils along several lines on the now named Dew Drop area with widespread anomalous copper concentrations throughout the area (Assessment Report 30757).
In 2010 PJX Resources Inc. acquired the Dew Drop property as part of the larger Dewdney Trail property and flew an EM survey over the area.
In 2016, PJX Resources Inc. conducted geological mapping and rock geochemistry sampling on the Dewdney Trail Property (Assessment Reports 36649).
Refer to April (082GNW049), Hot 1 (082GNW050), and East Ridge (082GNW117) for related geological and work history information.
