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British Researchers Identify Rocks Formed in Decades from Industrial Waste — A Warning About the Accelerated Impact of Human Action on the Environment and Geology
Researchers from the University of Glasgow identified an impressive geological phenomenon in England. Using a coin and a soda can tab, they discovered rocks formed in less than four decades. The rapid formation is primarily caused by human activity.
New Rock Made from Industrial Waste
According to the study published on April 10 in the journal Geology, the team found a new type of rock created from slag, a waste product of the steel industry, in West Cumbria.
The scientists claim it is the first time a “rapid cycle of anthropoclastic rocks” has been fully documented and dated on land. This cycle incorporates artificial materials and develops rapidly.
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Waste Management May Be Behind
Amanda Owen, a co-author of the research, explained that the discovery shows the time to manage industrial waste is much shorter than previously thought.
“When the waste material is deposited for the first time, it is loose and can be moved as needed. Our discovery shows we do not have as much time as we thought to find a place to put it, where it has minimal impact on the environment. Instead, we may have only a few decades before it turns into rock, which is much harder to manage,” she said.
A Coast Shaped by Industry
The site of the discovery, Derwent Howe, in West Cumbria, hosted heavy steel industries during the 19th and 20th centuries. These activities generated about 27 million cubic meters of slag, which formed artificial cliffs along the coast. Owen and her colleagues noticed unusual formations in these cliffs, which prompted the research.
Natural Process Accelerated by Human Action
In analyses conducted at 13 different points along the coast, the scientists found that the slag from Derwent Howe contains deposits of calcium, magnesium, iron, and manganese.
The exposure of these elements to seawater and air through coastal erosion generates natural cements such as brucite, calcite, and goethite. These compounds are the same that bind natural sedimentary rocks, but usually in processes that take thousands or millions of years.
Physical Evidence of Shortened Geological Time
Owen noted that the most remarkable aspect is the short time required for rock formation. “We found that these artificial materials have been incorporated into natural systems and become lithified — essentially turning into rock — over decades,” she explained.
The team confirmed the speed of the process by finding modern objects trapped in the rocks. Among them were a coin from King George V, dated 1934, and an aluminum can top dated 1989. These findings allowed them to verify the chronology of the phenomenon.
Possible Global and Environmental Implications
Co-author David Brown suggested that the rapid rock formation process may be occurring in other coastal slag deposits around the world.
As the slag gathers the necessary ingredients for rock creation when exposed to the marine environment, this accelerated cycle may not be exclusive to England.
Owen warned that the rapid emergence of rocks could profoundly impact ecosystems, both terrestrial and marine. Additionally, the formation of new rocks could alter the way coasts cope with rising sea levels and extreme weather events.
She further emphasized that current models of erosion management and climate change adaptation do not take this new factor into account.
In the future, the team plans to expand research to other slag deposits, stressing that human activity is accelerating not only the climate but also geological processes that previously took eons to occur.
With information from Xataka.
