EXPANDED LINKA GEOPHYSICS DEFINES INTRUSIVE SYSTEM

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Stock Viking Mines Ltd (VKA.ASX)
Release Time 26 Mar 2026, 9:49 a.m.
Price Sensitive Yes
 Expanded Linka Geophysics Identifies Large-Scale Tungsten System
Key Points
  • Expanded geophysical surveys identify substantial scale of Linka intrusive system
  • Interpretation of contact zone identifies multi-kilometre footprint for potential new skarn mineralisation
  • Initial magnetic image processing reveals interpreted source intrusion with ~2km diameter and ~7km circumference
Full Summary

Viking Mines Ltd (ASX: VKA) has reported that an expanded ground magnetics geophysical survey has greatly improved the understanding of the Linka Tungsten Project in Nevada, USA. The data indicates the Project is part of a significantly larger intrusive system than previously interpreted, providing a clear technical pathway for the Company's drilling programme planned for the June quarter. The primary objective of the geophysical survey was to expand beyond known surface mineralisation and identify the intrusions limits and contacts with the sedimentary host rocks to identify 'blind' targets beneath the younger cover. By mapping the intrusive architecture utilising the high-resolution magnetic surveys, Viking has established a targeting model that aims to increase the success rate of the upcoming drilling programme. The new ground magnetics data 'sees through' the Bates Mountain volcanic cover, revealing the prospective contact between the intrusive and limestone, establishing a high-value target horizon. A major outcome is the identification of the system's southern extension, which was previously masked by the volcanic cover. The expanded gravity data provides a direct detection layer for the high-density tungsten-bearing skarns, allowing the Company to prioritise drill holes that coincide with both the intrusive contact and high-density anomalies. The GAIP trial has provided a preliminary dataset which is being evaluated as an additional method to map the subsurface lithology and structures. By proving the scale of the system before the first drill rig arrives, Viking is ensuring that capital is deployed as efficiently as possible. With tungsten prices (APT) testing all-time highs of US$2,650/mtu, the strategic value of a large-scale Nevada-based Project continues to accelerate.

Outlook

The Company is finalising drill positions to test both the southern continuation from Linka and initial traverses to confirm the extents of the interpreted intrusion beneath the volcanic cover. Field crews will be mobilised in April to conduct sampling and initial geological mapping and to ground truth observations and interpretation from the geophysics. Drill permitting with the Federal Government is underway, with drilling planned to commence in the June Quarter.