Arrow Project
The Arrow Gold Project is one component of Raiden Resources’ gold exploration strategy, situated in the Pilbara region of Western Australia. The project lies approximately 35 kilometres southwest of De Grey Mining’s world-class, 10+ million-ounce Hemi gold deposit, which was acquired by Northern Star for ~$5 billion. Notably, the Arrow Project shares the same geological characteristics and is located along the same structural trend as the Hemi deposit, with multiple identified anomalies.
Location
Centrally located 110 kilometres southwest of Port Hedland in the Pilbara region, the Arrow property benefits from established infrastructure and access routes, facilitating exploration and potential development activities.
Ownership
The property comprises two exploration licences, E47/3476 and E47/3478, covering an area of 377 km². Raiden’s wholly owned subsidiary, Pilbara Gold Corporation, holds a 100% interest in both licences.
Exploration Status
Historical exploration at Arrow included detailed aero magnetic surveys, surface sampling ( soil, auger, and rock) and limited drilling targeting a post-orogenic epithermal vein system within the Peawah Granodiorite on E47/3476. The discovery of De Grey’s Hemi gold system has renewed interest in the district, which was previously considered limited for potential for large scale gold deposits. Recent soil and rock sampling, along with reconnaissance geological mapping across E47/3476, have successfully defined extensive areas of outcropping hydrothermal alteration and numerous multi-element (Au-As-Sb) soil anomalies.
In November 2024, a comprehensive aircore (AC) drilling programme was completed over the Arrow Gold Project, totalling 79 holes for 3,007 metres. This programme, financed by a project level option to Mallina Co Pty Ltd, aimed to confirm geochemical anomalies in bedrock and delineate gold-bearing structures.
Assay results identified slightly elevated gold and arsenic values in the southern part of the area drilled, centred around hole 24MALAC079, which recorded 26.5ppb Au and 196.7ppm As, associated with felsic intrusives and ultramafic rocks. These findings suggest the presence of gold-bearing structures within the Arrow North project area.
Highlights
Arrow is located in the Mallina Basin, 32 kilometres along strike southwest of De Grey Mining’s (ASX:DEG) recently-discovered Hemi gold system. Historic and recent exploration at Arrow has defined multi-element geochemical anomalies coincident with small volume intrusions and extensive areas of hydrothermal alteration.
Maps
Prospectivity and Geology
The Arrow Project is situated within the Mallina Basin, in the same belt of rocks as the Hemi deposit, intersected by extensions of the host structures. The licences encompass Mesoarchean Mallina Basin rocks and later intrusions, including wacke and siltstone of the De Grey Group, layered mafic-ultramafic sills of the Millindinna Suite, the Peawah Granodiorite, Satirist Granite, and related late orogenic porphyritic intrusions.
Gold mineralisation in the district is associated with small-volume intrusions affiliated with the Indee Suite (e.g., the Peawah Granodiorite), district-scale shears (e.g., the Wohler Shear Zone), and antiform axes. Approximately 10 kilometres of the Wohler Shear Zone transects E47/3476, with subsidiary structures extending across both tenements.
The project is also considered prospective for pegmatite hosted lithium mineralisation which Raiden plans to evaluate in further detail in the future.
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