MRR

0 (0%)

PROJECTS

Marble Bar North

The Marble Bar North Project licence (P45/3040) comprises a single prospecting licence of 3.025 hectares, which was granted on the 2 July 2018, for a period of four years. The lease is 3km from Marble Bar Township, with a well maintained track running right to the old Ironclad mine-site and battery, a five minute drive from Marble Bar.

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 six gold nuggets, totalling 22.7 grams, were recovered from the Marble Bar North Project tenement (P45/3040). Table 1 below details the location and size of the nuggets, while Figure 1 shows the nuggets themselves and Figure 2 is an aerial photograph of the P45/3040 tenement showing the location of the nuggets relative to historical workings.

Table 1: Location and size of the gold nuggets found in P45/3040 on the December 2017 site visit

Location / Nugget Easting Northing Tenement Nugget Weight (g)
Au01 786296 7657578 P45/3040 0.1
Au02 786295 7657575 P45/3040 0.8
Au03 786293 7657545 P45/3040 3.7
Au04 786284 7657590 P45/3040 11.1
Au05 786283 7657586 P45/3040 6.5
Au06 786294 7657564 P45/3040 0.5
Total 22.7

In May 2018, a total of 40 rock samples were collected from the extensive old workings, variously named Ironclad, Jo Jo North and Betty Boo at Marble Bar North (P45/3040).

The gold mineralisation in this area occurs as quartz veins in sheared greenstones, and associated alteration zones, in dolerite and other mafic rock types, close to the greenstone/granite contact.

This lease has been worked extensively in the past and, within the lease, a line of old gold workings lies along the lithological contact between sheared and metamorphosed mafic volcanic rocks and intrusive granite.

This highly sheared contact zone trends north-south and hosts an extensive gold-bearing quartz vein system that dips shallowly to the west, within the encompassing shear zone.

Gold nuggets recovered from P45/3040 during the December 2017 site visit
Gold nuggets recovered from P45/3040 during the December 2017 site visit

The Ironclad Gold Mine workings form part of the Marble Bar Group of gold mines, which contain a total of 29 gold occurrences, with a historic gold production of about 1,298kg, within a strike extent of about 4km.

The Ironclad Mine was worked from the 1890’s until 1933 and produced 1,451oz of gold from 2,843t of ore treated; a sizeable proportion of this production was from the area now covered by P45/3040.

The 40 rock samples from the Marble Bar North Project area 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 10ppb Au up to 42.9g/t Au, with an average for all 40 samples of 4.86g/t Au, and 17 of the 40 samples assaying over 1.0g/t Au.

Aerial photo of P45/3040 showing the location of the gold nuggets and historical workings
Aerial photo of P45/3040 showing the location of the gold nuggets and historical workings

The full assay results for gold and base metals are in Table 3 below, with the gold results also shown on the plan below (Figure 3). The full results were detailed in the ASX release of the 21 June 2018.

The next phase of field work at the Marble Bar North Project will comprise 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 be completed in the next few months during the current field season in the East Pilbara.

Marble Bar North Project P45/3040 showing workings and current gold assay results
Marble Bar North Project P45/3040 showing workings and current gold assay results

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

Sample No. Easting m Northing m Au ppm Ag ppm As ppm Cr ppm Pb ppm Cu ppm Ni ppm Zn ppm
MNR001 786383 7657702 0.18 0.0 11 15 3 23 10 6
MNR002 786383 7657702 3.10 0.4 123 635 67 1550 645 127
MNR003 786371 7657629 0.28 0.0 16 30 3 15 30 6
MNR004 786371 7657629 5.26 0.3 26 30 8 49 42 6
MNR005 786371 7657629 24.60 1.9 165 20 18 23 73 4
MNR006 786369 7657633 0.87 0.1 13 15 2 2 19 2
MNR007 786369 7657633 18.10 0.4 46 95 9 122 106 31
MNR008 786375 7657611 10.50 0.3 14 100 5 114 57 12
MNR009 786375 7657611 7.54 0.3 77 50 4 651 149 8
MNR010 786375 7657611 3.94 0.8 47 80 5 1840 278 16
MNR011 786376 7657598 1.27 0.5 27.8 240 5 220 170 13
MNR012 786376 7657598 0.97 0.3 60.2 55 2 2250 478 17
MNR013 786359 7657697 8.96 0.3 40.2 15 10 16 17 4
MNR014 786359 7657697 16.80 4.0 206 95 3310 172 88 1050
MNR015 786358 7657541 0.22 0.1 5 185 11 41 93 18
MNR016 786372 7657544 0.23 0.1 8.8 100 8 29 42 6
MNR017 786372 7657544 0.11 0.0 10.2 985 3 116 452 63
MNR018 786354 7657538 15.90 0.8 20 475 22 230 314 28
MNR019 786375 7657532 2.29 0.1 9 60 26 91 49 18
MNR020 786375 7657532 0.06 0.0 3.4 120 2 19 45 10
MNR021 786292 7657487 0.02 0.0 2.2 40 0 1 18 4
MNR022 786296 7657497 0.02 0.0 1.8 15 0 2 9 2
MNR023 786348 7557457 0.12 0.0 9.4 20 0 4 18 6
MNR024 786348 7657456 0.01 0.0 30.4 570 6 81 512 106
MNR025 786371 7657466 1.34 0.3 42.8 100 17 231 102 13
MNR026 786371 7657466 3.58 1.0 83.8 135 16 485 170 37
MNR027 786375 7657479 0.06 0.1 15.2 130 0 66 73 12
MNR028 786387 7657501 0.35 0.0 5.8 55 2 16 22 7
MNR029 786387 7657501 0.06 0.0 16.2 225 6 122 118 28
MNR030 786381 7657532 42.90 2.4 22.4 80 6 130 93 6
MNR031 786382 7657520 0.03 0.0 1.6 60 0 9 14 4
MNR032 786382 7657520 0.04 0.0 1.8 60 0 5 19 5
MNR033 786382 7657516 0.03 0.0 7 315 2 11 101 19
MNR034 786382 7657516 0.03 0.0 15.2 70 2 22 42 12
MNR035 786382 7657516 0.01 0.0 2.8 60 0 2 27 14
MNR036 786354 7657670 0.06 0.0 42 25 7 12 22 5
MNR037 786354 7657670 0.44 0.0 19.6 20 2 6 17 8
MNR038 786359 7657700 22.80 0.4 297 35 5 22 72 9
MNR039 786383 7657737 1.40 0.1 8.2 35 0 18 26 6
MNR040 786383 7657737 0.05 0.0 5.6 25 2 7 39 7

PILBARA GOLD

Daltons

The Daltons Project licence (E45/4681) comprises a single exploration licence of 3 blocks, equalling about 9km2, which was granted on the 13 July 2017, for a period of five years.

Deflector Extended

The Deflector Extended Project licence (E59/1657) comprises a single exploration licence of 5 blocks, about 15km2, which was granted on the 12 July 2011, for a period of five years.

Bamboo Creek

The Bamboo Creek Project licences (E45/4560 & 4853) comprise two contiguous exploration licences, totalling 25 blocks, equalling about 75km2, which were granted on the 11 and 27 October 2017, for a period of five years.

Marble Bar North

The Marble Bar North Project licence (P45/3040) comprises a single prospecting licence of 3.025 hectares, which was granted on the 2 July 2018, for a period of four years.

Marble Bar South

The Marble Bar South Project licence (P45/3039) comprises a single prospecting licence of 8.26 hectares, which was granted on the 2 July 2018, for a period of four years.

Top