- Oregon’s volcanic sediments may contain one of the largest reserves of lithium ever discovered in the United States.
- Residents fear mining expansion could permanently damage fragile desert wildlife habitats nearby.
- Mining companies want hundreds of wells drilled in Oregon’s remote desert terrain
Geologists have identified what could be one of the largest lithium deposits ever found in the United States beneath Oregon’s McDermitt Caldera.
Reports claim that the ancient volcanic sediments may contain between 20 and 40 million metric tons of lithium, with an estimated value of approximately $1.5 trillion.
The discovery could significantly strengthen the United States’ domestic supply of a metal essential for making smartphones, electric vehicle batteries and renewable energy storage systems.
Lithium is important for the US manufacturing industry
Global demand for lithium has skyrocketed due to the rapid transition to cleaner transportation and renewable energy storage, and the metal’s light weight and excellent electrochemical properties make it irreplaceable for now in modern battery production.
A domestic source would reduce US dependence on foreign supply chains, which could reduce geopolitical risks and trade vulnerabilities.
Malheur County is among the poorest areas of Oregon, and some residents hope new mining jobs could improve the region’s economic prospects.
“This feature is 16 million years old and we are making decisions in a matter of years,” said Sammy Castonguay, a geologist at Treasure Valley Community College.
His statement has sparked local debate about how quickly development could reshape the fragile high desert ecosystem, as the region is home to pronghorn antelope, sage grouse and other sensitive species that could be displaced by large-scale mining operations.
The Oregon chapter of the Sierra Club supports cleaner energy, but believes drilling should not come at the expense of fragile habitats.
Economic and environmental protection tensions
Proposals from mining companies seek to add roads and hundreds of wells for lithium testing in Malheur County.
The Bureau of Land Management once offered a brief window for public comment, drawing criticism from groups who said it wasn’t enough time.
Tribal leaders have challenged previous proposals by singling out sites sacred for ceremonies and important to traditional ways of life.
“We need to do this the Oregon way: with full responsibility and shared benefits,” said Greg Smith, Malheur County economic development director.
Lithium is housed in volcanic-rich sediments, which have been transformed into lithium-rich clayey clay.
Unfortunately, processing loamy clay can require complex techniques, including acid leaching, raising questions about waste disposal and water safety.
Local communities want to ensure they are not left with an environmental disaster once the initial enthusiasm fades.
Debate often centers on water needs for drilling and processing, as previous drilling in high desert regions has shown that water tables can be affected by large-scale operations.
Scientists believe there are better ways to obtain the metal without destroying fragile desert ecosystems.
Proponents argue that these lithium-rich clays represent a crucial resource in an era when all major automakers are transitioning to electric models.
Disagreements must be resolved soon because lithium is worth $1.5 trillion and that figure will not wait for endless community meetings.
Via Earth.com
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