Julimar North Project

Julimar North project hosts a large underexplored area in the emerging PGE-Ni-Cu-Co mineral field. The Julimar Project is located in the Wheatbelt region of Western Australia approximately 100km northeast of Perth. The project comprises of 4 granted Exploration Licences and 4 pending Exploration Licences under application, covering an area of 1,127 km2 (Tambourah Metals 80%).

 

Regional aeromagnetics and interpreted domain boundaries of the Julimar North Project

The recent nearby discovery of the Julimar PGE-Ni-Cu-Co deposit by Chalice Mining Limited (Chalice Mining Limited, 2020) has opened the region as a new Ni-Cu-PGE sulphide province. Tambourah Metals will be one of the largest explorers in this emerging mineral field.

Julimar Local Geology

The Julimar North Project is geologically located in the South West Terrane, which occupies the lower south-western part of the of the Yilgarn Craton. The South West Terrane is further divided into three additional tectonic units – the Balingup, Boddington and Lake Grace terranes. 

These are separated by inferred north or northwesterly-trending shear zones which intersect three metamorphic belts – defined by; north-northwesterly-trending regions of high-grade metasedimentary granulite and gneiss, predominantly of pelitic and psammitic compositions; consisting of the Balingup, Chittering and Jimperding metamorphic belts. 

 

The Julimar North project is located within the Jimperding metamorphic belt which straddles the Lake Grace/Boddington ’terrane’ boundary. This region has a proven presence of PGE-Ni-Cu-Co mineralisation but currently remains largely under-explored.

 

Julimar North Previous exploration 

 

The Julimar north region has previously been explored for bauxite mineralisation beginning in the 1960s. Exploration for magmatic Ni-Cu-PGE sulphides in the region only began in the late 2000s and gained significant impetus from the recent high-profile PGE-Ni-Cu-Co-Au discovery at the nearby Julimar mafic–ultramafic complex by Chalice Mines Limited, approximately 35 km southwest of the Julimar project. 

 

Mineralisation encountered at the nearby Yarawindah Brook and Newleyine Ni-Cu-PGE prospects implies that any mafic–ultramafic rocks situated within Tambourah Metals’ Julimar North Project would be fertile and prospective for magmatic Ni-Cu-PGE sulphide mineralisation.

 

The Caravel copper-gold project is located approximately 12 km east of Tambourah Metals Yerecoin Exploration Licence with a reported Mineral Resource comprising the Bindi, Dasher and Opie deposits. The mineralisation at the prospects is believed to be of a porphyry and/or skarn deposit style which occurs within a possible larger scale Archean subduction-related geological setting (Caravel Minerals Limited, 2019)

 

Julimar North Exploration Plan

 

Tambourah Metals has conducted reviews of the Project since acquisition of the Project tenure in 2020. The reviews have been multidisciplinary in approach and contributed to the local interpretation of the geological framework and Ni-Cu-PGE and copper-gold mineralisation potential in the Project area.

Tambourah plans to capture all geological data (including geophysics, rock chip samples, soil samples, previous drilling etc.) into a GIS (Geographical Information Systems) environment, followed by reconnaissance fieldwork including visiting outcrops and sites of historical exploration and mapping.

The focus of this work will be to better understand potential for geological controls on Ni-Cu-PGE, copper and gold mineralisation in refining exploration targets.  

 

The Julimar North Project is located about 100km of Perth and is within the Wheatbelt region of Western Australia, The Julimar North Project is geologically located in the South West Terrane, which occupies the lower southwestern part of the of the Yilgarn Craton The South West Terrane is further divided the region into three additional tectonic units – the Balingup, Boddington and Lake Grace terranes. These are separated by inferred north- or northwesterly-trending shear zones which intersect three metamorphic belts – defined by north-northwesterly-trending regions of high-grade metasedimentary granulite and gneiss, dominantly of pelitic and psammitic compositions. From southwest to northeast these are the Balingup, Chittering and Jimperding metamorphic belts. Julimar is in the Jimperding Metamorphic Belt.

Julimar Exploration Potential and Mineralisation Targeting

Exploration for magmatic Ni-Cu-PGE sulphides in the region has gained significant impetus from the recent high-profile PGE-Ni-Cu-Co-Au discovery at the nearby Julimar mafic–ultramafic complex by Chalice Mines Limited, approximately 35 km southeast of Exploration Licence E 70/5407 and 40 km west of Exploration Licence E 70/5423. Caspin Resources Limited have grouped the mafic-ultramafic intrusive rocks in the region to be part of the ‘New Norcia nickel sulphide province’.

Mineralisation encountered at the nearby Yarawindah Brook and Newleyine Ni-Cu-PGE prospects implies that any mafic–ultramafic rocks situated within Tambourah Metals’ Julimar North Project would be fertile and prospective for magmatic Ni-Cu-PGE sulphide mineralisation.

The Caravel copper-gold project is located approximately 12 km east of Tambourah Metals Yerecoin Exploration Licence with a reported Mineral Resource comprising the Bindi, Dasher and Opie deposits. The mineralisation at the prospects is believed to be of a porphyry and/or skarn deposit style which occurs within a possible larger scale Archean subduction-related geological setting (Caravel Minerals Limited, 2019).

Tambourah Metals has conducted reviews of the Project since acquisition of the Project tenure in 2020. The reviews have been multi-disciplinary in approach and contributed to the local interpretation of the geological framework and Ni-Cu-PGE and copper-gold mineralisation potential in the Project area.

Tambourah plans to capture all geological data (including geophysics, rock chip samples, soil samples, previous drilling etc.) into a GIS (Geographical Information Systems) environment, followed by reconnaissance fieldwork including visiting outcrops and sites of historical exploration and mapping. The focus of this work will be to better understand potential for geological controls on Ni-Cu-PGE, copper and gold mineralisation in refining exploration targets.