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Frogmore Copper District, New South Wales
The Frogmore district was mined for copper in small underground mines during the late 1800s and early 1900s. The copper sulphide ore (chalcopyrite) was smelted on site, and mined to a maximum depth of 90m.
Drilling by Paradigm intersected significant copper mineralisation along a newly discovered northeast trending structure in 2008. Paradigm is targeting a multimillion tonne high-grade copper deposit in the Frogmore district. The style of mineralisation is believed to be similar to 'Cobar-style' (CSA), with copper associated with a regional shear zone along a reactivated Siluro-Devonian basin margin.
Diamond drill holes intersect significant copper mineralisation
Copper intersections from Frogmore include:
FDD001: 8.7m @ 1.9%Cu from 250.6m incl 1m @4.8%Cu, and 14.8m @ 2%Cu from 275m incl 1m @ 8.3%Cu
FDD002: 1.5m @ 6% Cu from 316m
FDD003: 15.8m @ 0.7%Cu from 203m incl 6.5m @ 1.1%Cu
Geology of Frogmore
Chalcopyrite occurs as vein style mineralisation associated with pyrrhotite or pyrite accompanied with chlorite -sericite and minor silicification. A north-northwest fault zone can be traced for approximately 100km, and juxtoposes Ordovician sediments to the east with Silurian volcanic rocks in the west. The geology of the region is shown in the Projects/Overview section of this website.
Typical examples of 'high-grade' chalcopyrite-pyrrhotite mineralisation from the Frogmore diamond holes are shown in Photos 1 and 2 below. The locations of these core are shown on the attached cross section.
Figure 8.1 Map of copper structure at Frogmore with selected drill holes

Figure 8.2: Cross section of FDD001 drill hole

Figure 8.3 Long section of Pride of Frogmore at 30 June 2008

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