🗞️ GeophysPress — Weekly Press Room · 2026-06-07

CAUR · GeoSig · GDD · Géophysique GPR International

DRAFT — awaiting your approval. Nothing has been sent. Sciences & Business (public, sourced). Edition #1 is a catch-up spanning recent months; later editions use a true ~7-day window. English. Every item links to its source.

⚡ This week's highlights

• CAUR's ANT is in the field on two live targeting jobs — Foremost's CLK uranium (Athabasca) and VanadiumCorp's Lac Doré (Québec).
• Competitors moving: Xcalibur won Egypt's first national airborne survey in 42 years; Geotech flew a 2,400 line-km VTEM job.
• AI/ML surge in geophysics: physics-informed neural operators (DAS→velocity), foundation-model seismic denoising, and a quantum-PINN speed-up for full-waveform inversion.

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📍 Our group in the news

• Foremost Clean Energy integrates CAUR ANT + MobileMT at CLK (Athabasca uranium) — GlobeNewswire, 2026-05-05. CAUR completed an ANT survey (fall 2025) delivering a 3D velocity model; combined with helicopter MobileMT (conductors >900 m deep) to define drill targets near the historic ~1.01% U₃O₈ CLG-D1 intercept. → CAUR ANT in a real multi-method targeting workflow. · 👍 👎 💬
• VanadiumCorp reports CAUR ANT 3D Vs model at Lac Doré, Québec — Junior Mining Network / Investing News, 2026-04-16. CAUR ran 98 passive nodes over ~7.4 km² → 3D shear-velocity model to ~450 m (report CAU-24-007); imaged a sub-vertical low-velocity corridor aligned with the V-Ti-magnetite trend. → CAUR's core tech on a Québec project (preliminary, pending drilling). · 👍 👎 💬

🛠️ Applied to our field

• Midland Exploration — 23.7 line-km IP survey, Caniapisc Au, Québec — GlobeNewswire, 2026-05-28. Pole-dipole IP found several chargeability anomalies near gold-bearing boulders (grab up to 24.5 g/t Au); QC by TMC Geophysics & Baseline. → Current Québec ground IP — GDD/GPR's bread and butter. · 👍 👎 💬
• Bolt Metals — 402 line-km MobileMT at Northwind, Québec (MT over TDEM) — StockTitan, 2026-05-22. Chose MobileMT because thick resistive overburden limits TDEM. → Real-world airborne EM method-selection tradeoff in Québec cover. · 👍 👎 💬

🏢 Commercial & industry (public)

• Egypt signs Xcalibur for first nationwide airborne mineral survey in 42 years — AGBI, 2026-05-25. Drone-based geophysics across six regions, 27 metals. → ⭐ Xcalibur is a direct airborne competitor — a major national mandate. · 👍 👎 💬
• Galactic Gold completes 2,400 line-km VTEM survey with Geotech — Newsfile, 2026-06-03. → ⭐ Continued uptake of Geotech's flagship VTEM (airborne competitor). · 👍 👎 💬
• Molten Metals — 360 line-km MobileMT at Texas project, BC — Junior Mining Network, 2026-05-22. → Ongoing demand for airborne EM/MT. · 👍 👎 💬
• Dawson Geophysical — Q1 2026 revenue +128% YoY ($36.7M) — PR Newswire, 2026-05-14. Strong utilization of new single-node channels. → Public read on seismic-acquisition market health. · 👍 👎 💬

📚 Science

• Passive seismic imaging for mineral exploration — Irish Midlands case study — J. Applied Geophysics, 2025-10-24. ANT at Collinstown (Zn district) imaged the prospective Pale Beds at depths matching active 2D seismic — a low-cost complement to active methods. → Validates ANT for hardrock base-metal targets (CAUR/GPR overlap). · 👍 👎 💬
• 3D deep ERT & IP beyond 1 km for mineral exploration (SEEMSDEEP) — GJI, 2025-11-17. High-power injection + nodal recording delineated conductive/chargeable anomalies >1.5 km deep in Finland — reportedly the first high-quality IP at that depth. → Squarely GDD's instrument domain + GPR deep-survey work. · 👍 👎 💬
• Full-wavefield surface-wave analysis with Bayesian Evidential Learning — GJI, 2025-12-08. Inverts the full dispersion image (no manual curve picking) with uncertainty quantification. → Removes a subjective step in ANT/passive-seismic near-surface workflows. · 👍 👎 💬

🤖 AI / ML in geophysics

• DANTE — physics-informed neural operator: DAS → velocity without co-located seismometers — arXiv, 2026-05-18. FNO + physics constraints reconstructs particle-velocity from DAS strain-rate (r=0.907; generalizes to Utah FORGE). → Useful for DAS-based survey work. · 👍 👎 💬
• Regularizer, not architecture, drives neural travel-time tomography (MIMIR/TGV²) — arXiv, 2026-05-11. Neural-field velocity + TGV² cut RMSE 33–44% on hard cross-well cases. → Travel-time tomography is core to CAUR/GeoSig imaging. · 👍 👎 💬
• Foundation vision models (DINOv3 + LoRA) for active & passive seismic denoising — arXiv, 2026-04-30. Cheap fine-tuning + label-free test-time adaptation; generalizes across exploration/DAS/geothermal data. → Lowers the data/compute barrier for survey groups. · 👍 👎 💬
• Hybrid quantum-classical PINN for full-waveform inversion — arXiv, 2026-05-31. Quantum-circuit FBPINN reached lower velocity error in ~8× fewer iterations (simulator-stage). → Emerging efficiency frontier for PINN-FWI. · 👍 👎 💬
• SeismoGPT — transformer forecasting of 3-component seismograms — arXiv, 2026-06-01 · medium-confidence. Autoregressive waveform continuation (median NCC >0.93 on synthetics). → Generative-AI direction with early-warning potential. · 👍 👎 💬

📋 Regulatory / industry

• Canada commits C$20M to Electra battery-grade cobalt refinery (Ontario) — ISED, 2026-05-04. → Federal critical-minerals capital sustains Shield exploration/survey demand. · 👍 👎 💬
• 📅 Events & CFPs: Québec Mines + Énergie 2026 (Québec City, 16–19 Nov) · EAGE Near Surface 2026 (Thessaloniki, 20–24 Sept) · IMAGE 2026 (Houston, 17–20 Aug). (Québec Bill 63 mining reform → standing context, moved to the knowledge base.) · 👍 👎 💬

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