AI-Native Mineral Exploration

See what's beneath.

Barq Minerals jointly inverts every geophysical signal — gravity, magnetics, EM, resistivity, IP — into one precise subsurface model. The platform every geologist can use. For lithium, copper, cobalt, nickel — the minerals the energy transition depends on.

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Lithium Copper Cobalt Nickel Joint Inversion Gravity · Magnetics · EM · IP Physics-Informed ML Built at Stanford Lithium Copper Cobalt Nickel Joint Inversion Gravity · Magnetics · EM · IP Physics-Informed ML Built at Stanford
What we do

A new way to find what the world needs next.

01 — Discover

Surface what's hidden.

Critical mineral deposits don't sit on the surface anymore. Our AI surfaces high-probability targets buried under cover, where legacy methods go blind.

02 — Quantify

Replace guesswork.

Every prediction comes with calibrated uncertainty. Know not just where to drill — but how confident to be, and what each new data point will reveal.

03 — Accelerate

Compress the timeline.

Discovery used to take a decade. We compress it into months — and every drill makes the next smarter, compounding precision across the campaign.

How it works

From sparse signal to drill-ready target.

Ingesting · Live
Data points 100M+
A 60-year unsolved problem in geophysics

Joint inversion was a research problem.
Barq makes it the default.

Different surveys see different versions of the same Earth. Gravity sees density. Magnetics sees magnetization. Electromagnetics sees conductivity. Each one alone is ambiguous — infinitely many subsurface models can produce the same data. Joint inversion is the discipline that fuses them into a single, sharper picture. Below: every major method ever developed, and the synthesis we believe wins for critical minerals.

THE STAKES · 2026

$50B spent on mineral exploration each year.
90% of drillholes miss.

$2.4M
Average cost per drillhole
Drilling is the largest line item in any exploration program. One dry hole resets the budget.
10–15 yrs
Discovery to production
Every year that passes, EV demand grows faster than supply. Lithium prices 12× since 2020.
3% → 30%
Drill success rate, with Barq
Joint inversion + AI-native targeting lifts hit-rate by an order of magnitude. Same survey budget, ten times the discoveries.
60M+ acres
U.S. underexplored land
The mineral supply for energy independence is here. The bottleneck is exploration speed.
01
CLASSICAL · 2003

Cross-gradient
structural coupling

Gallardo & Meju · El Arish, Egypt
∇m1 × ∇m2 → 0

Force the gradients of two model fields to be parallel. Structural features align across surveys — faults, ore-body boundaries, lithology contacts — without assuming the physical properties themselves are correlated. The first joint-inversion idea that actually worked.

Gravity + Magnetics Seismic + Resistivity MT + Gravity Gradiometry
02
PHYSICAL · 1974 → today

Petrophysical
rock-physics coupling

Gardner · Archie · Hashin-Shtrikman
ρ = a·Vp1/4  |  σ = a·φm·Swn

If you know the rock-physics law connecting two properties — Gardner's velocity-density, Archie's resistivity-porosity — bake it directly into the inversion. When valid, the constraint is brutally tight. The catch: you have to know the law. Mining geology rarely gives you that luxury.

Seismic + Density EM + Porosity Fuzzy c-means clustering Gaussian mixture lithologies
03
UNIFIED · 2012

Gramian
constraints

Zhdanov · CEMI Utah · Carrapateena IOCG
SG = ⟨m1, m2G = det G

One mathematical object. Three couplings. The Gramian stabilizer enforces correlation (linear), structural similarity (gradient), or petrophysical relations (transform) — depending on what you put inside it. The most powerful general framework ever devised for multi-physics inversion. Yellowstone magmatic system, sub-basalt imaging, Australian IOCG deposits.

Generalizes cross-gradient Generalizes petrophysical Discovers relationships, not assumes them
04
PROBABILISTIC · 1995 → today

Bayesian
joint inversion

Tarantola · Mosegaard · trans-d MCMC
p(m | d1, d2) ∝ p(d1 | m) · p(d2 | m) · p(m)

Don't pick one best model. Sample all models consistent with the data. Transdimensional MCMC even lets the data decide model complexity. The output isn't a single answer — it's a posterior distribution over earth models, each with a probability. This is the only honest way to tell a driller "drill here, with 87% confidence."

Transdimensional MCMC Hamiltonian Monte Carlo Ensemble Kalman Inversion
05
FRONTIER · 2023 → 2025

Deep-learning
joint inversion

PINN · MP3D-NET · Joint Diffusion
L = Ldata + λ·Lphysics + μ·Lcoupling

Physics-informed neural networks encode Maxwell's equations, Newtonian gravity, and elastic wave propagation as soft constraints in the loss function. Multimodal fusion architectures (MP3D-NET, 2025) treat each survey as a different modality and learn the cross-coupling end-to-end. Solves PDEs in milliseconds, not minutes. The bottleneck that legacy software cannot break.

Physics-Informed NN Differentiable forward solvers MP3D-NET multimodal fusion Diffusion-based joint reconstruction
06
CROSS-DISCIPLINE

The same problem,
solved in three sciences

Geophysics · Medical imaging · Atmospheric science

The mathematical machinery is universal. PET-MRI joint reconstruction in medical imaging uses structural similarity priors (Bregman distances, total variation) — identical mathematics to cross-gradient. 4D-Var data assimilation in atmospheric science fuses satellite, radar, and surface sensors via the same Bayesian framework. The deepest learning here: this is a solved problem in physics, an unsolved problem in product.

PET-MRI structural priors Atmospheric 4D-Var Seismic FWI Tomographic reconstruction
Barq Minerals
THE BARQ HYPOTHESIS

A six-layer stack.
One inversion. Every method.

The five paradigms above are not competitors. They are complements. The first company to fuse all of them into a single, browser-native, AI-accelerated inversion engine wins the critical-minerals software category. That's the hypothesis Barq is built on.

06 · ADAPTIVE

POMDP + RL drill targeting

After each drill hole, the posterior conditions on the new evidence. RL picks the next best location — sequentially, optimally, always.

05 · UNCERTAINTY

Ensemble Kalman Inversion

Lightweight alternative to MCMC. Maintains a swarm of plausible earth models. Every drill recommendation comes with a confidence interval.

04 · PRIORS

Critical-mineral deposit models

Magmatic Ni-Cu-Co sulfide, porphyry Cu, sediment-hosted Li brine, IOCG, VMS, lateritic Ni. Baked-in priors that legacy generic software lacks.

03 · FUSION

Multimodal foundation embeddings

Each modality — geophysical raster, drill log, hyperspectral, assay text — encoded into a shared latent space. The Gramian operates here, not on raw voxels.

02 · ACCELERATION

Physics-informed neural surrogates

Maxwell's, Newton's, elastic-wave PDEs solved by neural networks in milliseconds. The bottleneck that makes legacy software take weeks.

01 · COUPLING

Generalized Gramian framework

The mathematical core. One algebraic object that unifies structural, correlation, and petrophysical coupling. Any survey, any pair, any time.

No legacy product combines all six. SimPEG has the math, no DL. KoBold has ML, no inversion. Leapfrog is visualization. Mineflow is geometry. Barq is the AI-native joint-inversion layer underneath all of them.

The engine

Joint inversion. One model. Every signal.

The five paradigms above, fused into a single browser-native engine. Toggle data sources to watch the model sharpen — every signal you add tightens the posterior. Drilling data triggers POMDP + RL constraints to lock in the next drill target.

Interactive demo — try the toggles
Data sources
Live subsurface model · Cu-Ni-Co target Inverting · 2 sources
Toggle data sources at left to fuse them — enable Drilling Data to see the next drill target
Inversion state
Data sources fused
2/11
Gravity · Magnetics
Model uncertainty
62%
Voxel resolution
25m
Refines with each source
Inversion time
8.4s
vs. weeks in legacy software
Every geosciences package, unified. Barq is the AI user interface for SimPEG, Leapfrog, and every geophysical and geological software in use today — combined into one fast, browser-native workflow. Joint inversion, knowledge-graph fusion, POMDP-constrained targeting, and GIS-accurate drill planning. The result is a single probabilistic model, sharper than any single survey or software can produce.
The output

Industry-grade deliverables. Drill-ready in days.

Every project ships with 3D resource models, 2D prospectivity maps, and grade-coloured drillhole intercepts — the same artifacts your geologists and investors expect, generated automatically from your raw site data.

ProjectCu-Ni-Co Polymetallic · MT-04
Voxels42,800
Drillholes218 · 64,200 m
Indicated resource 2.4 Mt Cu-eq @ 0.86% Cu · 0.42% Ni · 0.04% Co
Grade · Cu-eq% 0.1
2.0
CommodityLithium Brine · Salar
Resolution120 m / pixel
Targets7 high-priority
Top target probability 94.2% Estimated 420 mg/L Li
Probability Low
High
Surface Depth 0m 120 240 360
SectionN-S · Line 4250
CommodityNi-Co Sulfide
Holes shownDH-101 → DH-107
Best intercept 112 m @ 2.4% Ni-eq DH-104 · from 148m

Mining is the last industry to get its software moment. Lithium, copper, cobalt, nickel — the world needs more of all of them, faster. Today, joint inversion lives inside Python libraries only PhDs can run. Barq makes it a platform anyone can use.

Built at Stanford
Barq Minerals

Let's find what's next.

If you're a miner, an investor, or a partner who needs to move faster on critical minerals — we should talk.