ROX RESOURCES LIMITED
Australian gold and nickel company,
Managing Director
Further results are reported herein relating to drilling undertaken in the latter part of CY2020. Drilling was focussed on the Grace prospect, near mine targets and areas of known mineralisation in proximity to existing resources.
Rox continued to receive data for the northern extents of the Grace mineralisation in November and December. The favourable structure and lithology (green, sericitized quartz altered granite) continues although grades into less continuous zones along the Grace structure to the north. The Grace lode transitions into the wider lower grade open pit prospect
Importantly, the southern extent of the Grace structure, and the structure at depth have emerged as compelling targets. Rox's exploration model indicates that this zone has strong potential for significantly enhancing near mine gold inventory. The southern part of the Grace structure likely intersects the Youanmi mine shear below and south of the historically mined Pollard lodes. These lodes were principally mined in the 1930's with historical mine records indicating production of 260,000oz at 15 g/t Au mined grade. The modern era (1987 - 1993) open pit then mined out remnant mineralisation between surface and 120m below ground level.
This new target 'Junction' is to be tested via drilling commencing in late January or early
Activities since the start of
Several new zones of mineralisation have been identified, which are expected to show similar metallurgical characteristics to Grace (i.e. free milling) and may present future opportunities for incorporation into shallow oxide resource inventory. The intersection zones of these gold bearing structures with regional structures in mafic lithologies are key targets for further RC drilling to be undertaken in Q1 2021.
RC Drilling
The late 2020 RC program has identified a series of north striking lodes within the Younami Granite at the United North and Rebel prospects. This drilling continues to provide excellent results including:
RXRC344: 12m @ 6.54g/t Au from 28m New high-grade zone identified North of
RXRC341: 1m @ 2.78g/t Au from 31m, 2m @ 11.81g/t Au from 53m and 10m @ 1.4g/t Au from 164m. New high-grade zone identified in Granite 200m North of
RC drilling in early 2021 is focused on testing recently discovered north trending lodes at Rebel and United North.
Assays have been received for 8 diamond holes at Grace with results pending for 2 holes.
High grade results include: RXDD004: 1m @ 18.62g/t Au from 202m
The program was completed in the December quarter and comprised 9 holes for 1,192m to test the following: Three shallow (50-70m) diamond holes at the high-grade main shoot to confirm reliability of RC drilling and obtain specific gravity data for resource estimation.
Two 300m holes at Grace to determine structural controls on mineralisation. Interpretation is ongoing.
Three deeper (340-380m) holes at Grace North. The holes extended RC holes that previously failed to reach target depth.
Logging of mineralised core intercepts from Grace indicate that gold is hosted within a west dipping zone of strong sericite altered granite, shear veins and quartz-stibnite-gold breccia-style veins within a broad north trending structural zone.
Priority diamond drilling has been planned at the Grace-Mine Shear Junction and is scheduled to commence in
Junction Target Area
The intersection of N-S trending lode structures (Hill End,
OYG JV Aircore Drilling
Youanmi Granite
Following the discovery of Grace, situated in the Youanmi granite (historically considered unprospective), Rox undertook an extensive aircore drilling program to delineate other gold bearing structures in the same rock unit. Assays have been received for the first phase of the program, totalling 251 holes for 11,534m. The best result returned was in RXAC022, showing 4m @ 15.95g/t Au from 36m in granite 3km north of the
Much of the sporadic historical RAB drilling undertaken by previous operators failed to penetrate an almost ubiquitous silcrete layer at around 11m vertical depth, leaving extensive granite-hosted mineralisation undetected.
This program delineated ten large >250ppb Au anomalous areas. Five of these are greater than 500m in strike length. These anomalies add confidence to the proposition that the Youanmi granite may host large tonnage free milling oxide material.
The anomalies are to be tested in Q1 2021 with RC drilling.
The Bunker area has two of the key components of the Youanmi mineralisation model
The mine corridor high-Fe sequence (NNE-trending, E-dipping)
NNW-trending mineralised structure - subparallel equivalent of the mine corridor high-strain zone.
Magnetic imagery shows a distinct 15-degree sinistral bend in the high-Fe sequence coincident with the
High grade results returned from this round of drilling include: RXAC462: 8m @ 1.35g/t Au from 32m to 40m within a broader zone of mineralisation of 24m @ 0.73g/t Au from 20m to 44m
RXAC465: 8m @ 1.31g/t Au from 24m to 32m within a broader zone of mineralisation of 28m @ 0.59g/t Au from 24m to 52m
These results are highly encouraging being 400m north along strike (N-S) from
The SAM geophysical method was trialled for the primary aim of mapping gold mineralised structures over a 2.5km by 1.5km target area in the very weakly magnetic Youanmi granite and potential extensions to the southeast, beneath historical mine infrastructure (waste dumps and TSFs) that has been poorly drill tested by past explorers.
The results of the SAM survey indicate that known granite hosted mineralisation (
Exploration Model and Forward Plans
Rox's recent exploration work has identified the important Link and Junction targets which represent the intersection zones between north-south trending structures and the NW trending mine shear. The intersection of the Grace structure with the NW trending mine shear represents a high priority target for adding ounces to the overall project resource in the first half of 2020
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