The Future of Gold Exploration is Under Cover
Over billions of years, extraordinary amounts of gold and other metals were deposited and spread throughout the Earth’s crust. Humans have been searching for these rich deposits for centuries, and advances in geoscience and technology have helped us become more adept at finding them over time.
However, even with today’s advancements – almost all early-stage prospecting methods are still based on the same key principle: trying to find areas of exposed bedrock, called outcrops, that indicate an orebody is near.
But such outcrops only form in certain circumstances – and what happens when a geological system doesn’t come in contact directly with the surface?
The Problem of Cover
Today’s infographic comes to us from Nevada Exploration, and it identifies the problem behind finding these “hidden” deposits that do not leave a helpful trail of clues on the surface.
Instead of having outcrops where rocks can be readily sampled, these deposits are trapped underneath large amounts of soil and gravel. Geologists call this a covered setting, where they must first find a way to “see through” the cover in order to identify what geological systems really exist below.
Seeing through cover can be expensive and difficult to do, but it also has big potential upside.
There is no reason not to assume as much gold still exists as has been mined in the past, but prospectors, explorationists, and geologists have found the easy gold.
– Dr. Richard Goldfarb, Ph.D., United States Geologic Survey
In fact, many geologists think that the next game-changing gold deposit could be found under cover.
For explorers, it is no secret that the cost per discovery is going up dramatically over time. The reality is that traditional exploration methods are achieving diminishing returns, and as a result companies are settling for lower grade deposits, more complex geological settings, and politically questionable jurisdictions.
Minex Consulting says that between 2007-2016, there has been $65 billion spent globally on gold exploration with only $30 billion worth of discoveries to show for it. Those aren’t exactly inspiring economics for future gold explorers.
But for every industry problem, there is often a precedent to be found elsewhere – and an interesting situation that is analogous was faced by the oil exploration industry years ago. They had reached diminishing returns with shallow water deposits, and developed technology to go deeper. Suddenly, monster deposits were being found again.
Experts involved in mineral exploration see the same thing happening with cover.
With the transition to under cover exploration, the minerals industry is undergoing a transformation much like the petroleum industry transformed to deep sea exploration some decades ago.
– Cam McCuaig, Principal Geoscientist, BHP Billiton
In other words: whoever can figure out how to explore under cover could be reaping big benefits.
In the world’s most prolific gold jurisdictions, there are massive amounts of land that have not yet been explored because of cover. In Canada and in Australia, over 70% of land is covered. In Nevada, which produces the most gold ounces per square kilometer, about 55% of land is covered.
Interestingly, Nevada has produced 225 million oz of gold to date, but the majority of these discoveries have come from outcrop clues on the surface. Imagine what gold could be hidden under soil and gravel within the valleys of the state.
Global data so far suggests that deposits discovered under cover tend to be 2-4x bigger.
Exploring Under Cover
While the idea of unlocking this potential is extremely exciting, it also poses a significant technical challenge.
Conventional tools are poorly suited to covered settings, and existing techniques for systematic exploration don’t work. The end result is high-risk, high-cost exploration.
To successfully explore through cover, companies need:
- New technology to see through cover
- A way to lower the costs of testing targets
- A way to directly test covered bedrock
So far, a few ideas have been pioneered for seeing through cover – and it will be interesting to see what results they bring in.
Biogeochemistry: In Australia, explorers are using biogeochemistry as a hint to see what lays beneath the soil. Plants accumulate pathfinder elements in them, or even tiny amounts of gold, which allows explorers to get a hint at what lies deep below.
Hydrogeochemistry: In a place like Nevada, there are massive valleys in the middle of prolific gold districts that have remained unexplored because they are covered with hundreds of meters of gravel. Testing groundwater might be the key, because groundwater flows by gravity from mountains to deep in the valley centers. On the way, this water interacts with bedrock – and any gold deposits that are hidden beneath the surface.
Explorers are looking at other ideas as well, ranging from regional-scale mapping to adapting other oil and gas industry techniques. If any of them are able to unlock the secret of exploring through cover, it could be the catalyst for industrywide change, as well as the discovery of the monster deposits that will meet our mineral needs of the future.
The Silver Series: The Start of A New Gold-Silver Cycle (Part 1 of 3)
As the decade-long bull run shows signs of slowing, is it time for precious metals to shine? Here’s why it could be the start of a new gold-silver cycle.
The world has experienced a decade of growth fueled by record-low interest rates, a burgeoning money supply, and historic debt levels – but the good times only last so long.
As the global economy slows and eventually begins to retract, can precious metals offer a useful store of value to investors?
Part 1: The Start of a New Cycle
Today’s infographic comes to us from Endeavour Silver, and it outlines some key indicators that precede a coming gold-silver cycle in which exposure to hard assets may help to protect wealth.
Bankers Blowing Bubbles
Since 2008, central bankers around the world launched a historic market intervention by printing money and bailing out major banks. With cheap and abundant money, this strategy worked so well that it created a bull market in every sector — except for precious metals.
Stock markets, consumer lending, and property values surged. Meanwhile, the U.S. Federal Reserve’s assets ballooned, and so did corporate, government, and household debt. By 2018, total debt reached almost $250 trillion worldwide.
Currency vs. Precious Metals
The world awash in unprecedented amounts of currency, and these dollars chase a limited supply of goods. Historically speaking, it’s only a matter of time before the price of goods increases or inflates – eroding the purchasing power of every dollar.
Gold and silver are some of the only assets unaffected by inflation, retaining their value.
Gold and silver are money… everything else is credit.
– J.P. Morgan
The Perfect Story for a Gold-Silver Cycle?
Investors can use several indicators to gauge the beginning of the gold-silver cycle:
- Gold/Silver Futures
Most traders do not trade physical gold and silver, but paper contracts with the promise to buy at a future price. Every week, U.S. commodity exchanges publish the Commitment of Traders “COT” report. This report summarizes the positions (long/short) of traders for a particular commodity.
Typically, speculators are long and commercial traders are short the price of gold and silver. However, when speculators and commercial traders positions reach near zero, there is usually a big upswing in the price of silver.
- Gold-to-Silver Ratio Compression
As the difference between gold and silver prices decreases (i.e. the compression of the ratio), history suggests silver prices can make big moves upwards in price. The gold-to-silver ratio compression is now at high levels and may eventually revert to its long-term average, which implies a strong movement in prices is imminent for silver.
- Scarcity: Declining Silver Production
Silver production has been declining despite its growing importance as a safe haven hedge, as well as its use in industrial applications and renewable technologies.
- The Silver Exception
Silver is not just for coins, bars, jewelry and the family silverware. It stands out from gold with its practical industrial uses which account for 56.1% of its annual consumption. Silver will continue to be a critical material in solar technology. While photovoltaics currently account for 8% of annual silver consumption, this is set to change with the dramatic increase in the use of solar technologies.
The Price of Gold and Silver
Forecasting the exact price of gold and silver is not a science, but there are clear signs that point to the direction their prices will head. The prices of gold and silver do not accurately reflect a world awash with cheap and easy money, but now may be their time to shine.
Don’t miss another part of the Silver Series by connecting with Visual Capitalist.
Why Gold is Money: A Periodic Perspective
Gold has been used as money for millennia. People often attribute this to beauty, but there are basic physical properties for why gold is money.
Why Gold is Money
The economist John Maynard Keynes famously called gold a “barbarous relic”, suggesting that its usefulness as money is an artifact of the past. In an era filled with cashless transactions and hundreds of cryptocurrencies, this statement seems truer today than in Keynes’ time.
However, gold also possesses elemental properties that has made it an ideal metal for money throughout history.
Sanat Kumar, a chemical engineer from Columbia University, broke down the periodic table to show why gold has been used as a monetary metal for thousands of years.
The Periodic Table
The periodic table organizes 118 elements in rows by increasing atomic number (periods) and columns (groups) with similar electron configurations.
Just as in today’s animation, let’s apply the process of elimination to the periodic table to see why gold is money:
- Gases and Liquids
Noble gases (such as argon and helium), as well as elements such as hydrogen, nitrogen, oxygen, fluorine and chlorine are gaseous at room temperature and standard pressure. Meanwhile, mercury and bromine are liquids. As a form of money, these are implausible and impractical.
- Lanthanides and Actinides
Next, lanthanides and actinides are both generally elements that can decay and become radioactive. If you were to carry these around in your pocket they could irradiate or poison you.
- Alkali and Alkaline-Earth Metals
Alkali and alkaline earth metals are located on the left-hand side of the periodic table, and are highly reactive at standard pressure and room temperature. Some can even burst into flames.
- Transition, Post Transition Metals, and Metalloids
There are about 30 elements that are solid, nonflammable, and nontoxic. For an element to be used as money it needs to be rare, but not too rare. Nickel and copper, for example, are found throughout the Earth’s crust in relative abundance.
- Super Rare and Synthetic Elements
Osmium only exists in the Earth’s crust from meteorites. Meanwhile, synthetic elements such as rutherfordium and nihonium must be created in a laboratory.
Once the above elements are eliminated, there are only five precious metals left: platinum, palladium, rhodium, silver and gold. People have used silver as money, but it tarnishes over time. Rhodium and palladium are more recent discoveries, with limited historical uses.
Platinum and gold are the remaining elements. Platinum’s extremely high melting point would require a furnace of the Gods to melt back in ancient times, making it impractical. This leaves us with gold. It melts at a lower temperature and is malleable, making it easy to work with.
Gold as Money
Gold does not dissipate into the atmosphere, it does not burst into flames, and it does not poison or irradiate the holder. It is rare enough to make it difficult to overproduce and malleable to mint into coins, bars, and bricks. Civilizations have consistently used gold as a material of value.
Perhaps modern societies would be well-served by looking at the properties of gold, to see why it has served as money for millennia, especially when someone’s wealth could disappear in a click.
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