Greg Sier & Associates

Thinking / Operational data· Part 2 of 10 in The assurance layer

Public data is part of the investment infrastructure

Geological surveys do more than support science. They change the cost and quality of the first investment decision.

  • Geological Data
  • Exploration
  • Investment
  • Jurisdictions

17 August 2026

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Before an exploration company drills a hole, somebody has already made an investment decision.

That decision may be small compared with later drilling and development budgets, but it still allocates scarce capital to one opportunity instead of another.

The quality of that first decision depends heavily on information that the explorer did not necessarily create.

Regional geology, airborne geophysics, geochemistry, mineral occurrence records, historical drilling, tenure information and previous exploration reports all help determine whether an opportunity deserves further attention.

For that reason, public geological information is not merely a scientific resource.

It is part of the investment infrastructure of a jurisdiction.

Similar geology, different information cost

Imagine two jurisdictions with broadly comparable geological potential.

In the first, an explorer can access:

  • modern regional geological mapping,
  • high-resolution airborne magnetics,
  • geochemical datasets,
  • historical drilling,
  • digital tenure information,
  • previous exploration reports,
  • and consistent spatial data.

In the second, much of that information is old, incomplete, difficult to access or unavailable digitally.

The geological opportunity may be comparable.

The cost of reaching an informed decision is not.

In the second jurisdiction, private capital must first recreate information that already exists as public infrastructure in the first.

That additional cost affects the attractiveness of the investment even before geological potential is considered.

Availability is not the same as usefulness

It is also too simple to ask whether a dataset exists.

For investment screening, several questions matter:

  • Who produced the data?
  • When was it collected?
  • Has it been superseded?
  • What area does it cover?
  • What is its spatial resolution?
  • Is the source traceable?
  • Can it be downloaded in a usable form?
  • Are there known gaps?
  • Is it fit for the decision being made?

A regional magnetic dataset may be excellent for one purpose and inadequate for another. Historical drilling may be valuable even when the assay methods or coordinate quality need qualification.

This is why data provenance and limitation should travel with the data into the decision process.

Information gaps have a price

Missing information is not simply an inconvenience. It can often be expressed as a future capital requirement.

If modern geophysics is absent, an explorer may need to commission it.

If historical drilling is poorly documented, old targets may have to be retested.

If tenure records are ambiguous, legal and administrative work may precede technical work.

If public geochemistry is incomplete, field programmes may begin earlier and at greater cost.

One useful investment question is therefore:

How much private capital must be spent before we can reach a credible go/no-go decision?

That question moves geological data quality into the same conversation as access, regulation, infrastructure and capital efficiency.

Public evidence should remain distinguishable from private evidence

There is another important distinction.

Evidence available before the investment should be separated from evidence produced by the investment.

For example:

Before capital is committed

  • regional magnetic anomaly,
  • mapped intrusive contact,
  • historical copper occurrence,
  • historical drill intersection.

After capital is committed

  • new mapping,
  • infill geochemistry,
  • new geophysics,
  • drilling,
  • assays,
  • updated geological interpretation.

Keeping those two evidence groups distinct makes it possible to answer two different questions:

Why did we think this opportunity was worth funding?

and:

What have we learned since we funded it?

That separation becomes particularly important when programmes are reviewed with hindsight.

A jurisdiction can reduce information risk without reducing geological risk

A geological survey cannot make an orebody exist.

But it can reduce the cost of discovering whether one might exist.

It can also improve competition for capital by making opportunities easier to evaluate and compare.

This is why national and regional geological information should be viewed as more than a technical service to the mining sector.

It is part of the environment in which investment decisions are made.

A jurisdiction that exposes high-quality, current and usable information reduces one component of exploration uncertainty before the explorer spends the first private dollar.

The next question is what should happen once that private capital is committed.

If the programme is meant to reduce uncertainty, then activity alone is not enough. We need to understand what the capital was intended to learn.