Earth Source Limited logo Earth Source Limited

Exploration geology for real project advancement

Earth Source Limited is an independent exploration team. We deliver desktop targeting and fieldwork anywhere in the world — from early‑stage prospect reviews through to drill‑ready targets and technical due diligence. We combine hard field geology with disciplined data integration to produce clear, defensible next steps.

Target generation Field validation GIS & remote sensing Partnering & deal support

About

Earth Source Limited is a UK‑based mineral exploration company working internationally. We generate and advance mineral projects across commodities — precious & critical metals, REE's, industrial minerals...

What we do

Compile and normalise datasets related to target project, build a coherent geological and structural story, then go to the ground to confirm it.

Work spans regional targeting and anomaly triage, mapping and structural analysis, sampling strategy and programme design, and integrating geochemistry, geophysics and remote sensing when it improves the model. Outputs are built to be used: clean datasets, clear maps, ranked targets, and a plan for the next decision.

Evidence → Decisions → Next step

Outputs

Maps and figures, clean datasets, target‑ranking tables, field notes and photo logs, sections and drill concepts — packaged so partners can act, and decisions trace back to evidence.

Clean deliverables

Focus

We work across commodities and deposit styles. What matters is whether the geology is testable and the pathway to a decision is clear.

Target generation & interpretation

Regional screening to ranked targets: historical synthesis plus modern datasets, geophysics, geochemistry, and remote sensing only where it genuinely improves the model.

Synthesis • Ranking • Clarity

Field programmes that answer questions

Fieldwork designed to answer questions: mapping, structural observations, alteration and lithology logging, and targeted sampling with QA/QC. We iterate fast when the outcrop disagrees with the desk model.

Mapping • Sampling • Context

Across commodities & deposit styles

From lithium, rare earths & Nb‑Ta systems through to base and precious metals. Orogenic, Porphyry, Pegmatites and intrusives, sediment‑hosted systems, and structurally‑controlled mineralisation — we build the model around what the ground and data show.

Au • Ag • Cu • Li • REE • Nb‑Ta • Sn‑W • Zn‑Pb

From target to drill‑ready

When the evidence supports it, we develop drill concepts and next‑step plans: priorities, budgets, timelines, and the minimum work required to reach the next decision point.

Decision points

Projects

Work includes everything including and between early-stage target generation through to resource drilling.

Ireland — zinc-lead and lithium opportunity set

Project generation and advancement across Ireland, including base‑metal and critical‑mineral opportunities. Focus is on district‑scale upside, solid geology, and programmes that move from concept to drill decision.

Ireland

UK — target generation and early-stage advancement

Target generation and early‑stage advancement across the UK: desktop build, historic synthesis, and pragmatic field follow‑up, with clean packaging for partners and funders.

United Kingdom

Project readiness

We take on difficult assignments: fragmented datasets, remote ground, early concepts that need discipline, or advanced targets that need a clean path to drilling. Desktop targeting, fieldwork, or both — we’ll scope it, do the work, and provide a clear technical view of what the geology supports.

Decision gates

How we work

Clear scope, rigorous interpretation, and direct communication about uncertainty. You’ll always know what’s observation, what’s interpretation, and what still needs to be tested.

1) Desk build

Compile and normalise data, build a geological/structural model, and define a short list of testable targets.

GIS-first

2) Field check

Ground‑truth the model: mapping, structural observations, selective sampling with QA/QC, and rapid iteration where the geology disagrees.

Field-first

3) Next-step plan

Rank targets, set budgets and timelines, and produce partner‑ready materials when it’s time to move.

Partner-ready

Services

Target generation • GIS & remote sensing • Prospect evaluation • Mapping & sampling • Data QA/QC & normalisation • Field programme design • Drill targeting support • Technical due diligence • Partner technical packs

Straightforward scope

Team

Earth Source is a small, hands‑on team. Field‑first, data‑literate, and set up for real‑world delivery — from desktop targeting to boots‑on‑the‑ground work in demanding terrain.

Terry Nutkins

Exploration geologist and founder. With over a decade of experience in mineral exploration, works as a consultant geologist for various clients. His career includes involvement in numerous discoveries of precious and critical metals .

Exploration Geologist

Calum Dunn

Consultant geologist operating on several UK & EU projects. Previous experience in building and running companies including a medium sized family run construction/ development companies. Wide Geoenvironmental engineering experience across Scotland.

Exploration Geologist

Mike Burdon

Since graduating in 1979 with a First Class Honours Degree in Chemical Engineering from Newcastle University, Mike has held a variety of technical, commercial and business development roles in the Natural Resources Sector including British Gas & BHP. Mike has worked extensively in the UK and abroad and is now focused on renewable energy, sustainability and resource independence.

Business Development

Mark Marshall

Mark is a qualified commercial solicitor. He has spent 25 years in the oil and gas industry, working for Chevron and British Gas amongst others, across all continents. Mark's role was as both a lawyer and commercial negotiator, specializing in creative deal-making.

Commercial & legal

Contact

If you need desktop targeting, field support, a second technical opinion, or help getting a project drill‑ready, email and we’ll respond quickly.

Email

terry@earthsourceltd.com

Primary

Location

United Kingdom

UK-based

Note

Technical packs can be shared under NDA when required. Direct conversations welcome. We’re open to partnerships, joint ventures, and direct project work.

Opportunity