Marble Bar South Gold Project

Project Information

MinRex Resources Limited completed its first site inspection, field trip evaluation and technical due diligence of the East Pilbara Projects in mid-December 2017.  On this initial visit a total of ten rock chip samples were collected from P45/3039.

Rock chip samples were collected; due to metal detecting being problematic as there was significant scrap metal on surface within the tenement.  

These rock chips were on a ridge adjacent to a significant number of historical workings that are up to 10m deep. Table 1 below details the location and assay results of these initial ten samples and Figure 3 is an aerial photo of the P45/3039 tenement showing the location and assay results from the December 2017 rock sampling relative to historical workings.

During the May 2018 exploration program, a total of 40 rock samples were collected to add to the ten collected in December 2017 at the Marble Bar South Project area (P45/3039). The lease has a line of old workings running along a 30-40m high ridge of greenstone rocks.

The old mine was known as McKays Find and the mineralisation occurs as a 2m wide zone of pyritic-fuchsite-carbonate rock, with associated quartz veining.  The mined zone was 100m long, 0.5-2m wide, strikes at 010o and dips at 70-90o to the east, the ore shoot plunges east/southeast, parallel to the intersection of fracturing and regional schistosity.

The 40 rock samples from the Marble Bar South Project were collected from old mine workings, spoil piles and outcropping quartz veins. The samples were analysed for a total of 20 elements at Bureau Veritas in Perth; these included gold, silver, arsenic, cobalt, copper, chrome, bismuth, iron, lithium, manganese, molybdenum, nickel, lead, antimony, tin, tellurium, thorium, uranium, tungsten and zinc.

A few samples were anomalous in various elements but the outstanding results were in the gold assays which varied from 7ppb Au up to 47.6g/t Au, with an average for all 40 samples of 4.16g/t Au, and 14 of the 40 samples assaying over 1.0g/t Au.

The full assay results for gold and base metals are in Table 2, with the gold results also shown on the plan below (Figure 4). The full results were detailed in the ASX release of the 21 June 2018.

The next phase of field work at the Marble Bar South Project will closely mirror that at the Marble Bar North Project, comprising further rock sampling, soil sampling in colluvium and soil covered areas and detailed geological mapping to better understand this gold mineralised system.

 It is probable that this work will also be completed in the next few months during the current field season in the Pilbara.

Table 1:  Marble Bar South Project – December 2017 Rock Sample Assay Results

Table 2: Marble Bar South Project – May 2018 Rock Sample Assay Results