Geologists from the University of Utah have revealed that the Timpanogos Rock Glacier contains 1.5 million cubic meters of frozen water. located beneath Mount Timpanogos, this hidden reservoir challenges previous assumptions regarding the availability of water resources in the American West.
The 1.5 million cubic meters hidden under Mount Timpanogos
The University of Utah research team discovered that the Timpanogos Rock Glacier stores enough ice to fill 600 Olympic-sized swimming pools. Unlike traditional glaciers that are visible as sprawling ice sheets, rock glaciers are buried beneath a thick layer of debris, making them nearly invisible to the naked eye. According to the report, these formations act as concealed reservoirs that can hold vast quantities of water beneath a jumble of mountain rocks.
The specific composition of the Timpanogos Rock Glacier is remarkably ice-heavy. The study found that the formation consists of 83 percent ice and only 17 percent loose rock. This high concentration of frozen water suggests that these hidden structures are far more efficient at storing water than their unassuming, rubble-strewn surfaces would indicate.
How 232 gravitational measurements mapped the ice
To visualize the interior of the Timpanogos Rock Glacier, geologists employed a precise measurement of gravitational pull.. The team analyzed 232 different spots across a grid on top of the glacier to detect the subtle differences in density between the surrounding rock of Mount Timpanogos and the lighter buried ice. As the report says, this method allowed the researchers to create a detailed three-dimensional virtual map of the glacier's interior.
The resulting map revealed that the ice beneath the rubble reaches a maximum depth of 150 feet. This mapping process demonstrates that hikers or climbers walking across high-elevation rubble fields may be unaware that they are standing atop a massive frozen slab, sometimes extending 120 feet beneath their feet.
Utah's 836 rock glaciers as climate-resilient reservoirs
The discovery at Mount Timpanogos is part of a much larger geological phenomenon. There are more than 50,000 known rock glaciers globally, with over 10,000 located within the United States. Within Utah alone, there are 836 identified rock glaciers, which researchers estimate could collectively hold one gigaton, or 815,000 acre-feet, of water.
These formations are particularly significant because the thick "carapace" of loose rock protects the ice from melting as quickly as surface snowpacks. this makes the Timpanogos Rock Glacier and its counterparts climate-resilient water storage sites. In the arid western United States, where traditional snowpack patterns are shifting due to climate change,these hidden ice stores could serve as critical long-term reservoirs for water resource planning .
Which of the 10,000 US rock glaciers are still growing?
Despite the optimism surrounding these finds, a significant gap in knowledge remains regarding the activity of these glaciers. While the Timpanogos Rock Glacier is confirmed to be adding ice today,other rubble fields have already melted out. Currently, only a few dozen rock glaciers are under active research to determine if they are still accumulating ice or are merely remnants of the post-Ice Age era.
The University of Utah team noted that the water stores formed over thousands of years following the melting of Ice Age glaciers, but it is not yet known which of the 10,000 US rock glaciers remain active. Until more sites are mapped using gravitational measurements , the total available "active" water reserve in the American West remains a subject of scientific speculation.
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