There are subsea canyons far bigger than the Grand Canyon.The Grand Canyon is 6,093 feet (1,857 meters) deep, but the Zhemchug Canyon, located in the middle of the Bering Sea, is 8,530
There are subsea canyons far bigger than the Grand Canyon.
The Grand Canyon is 6,093 feet (1,857 meters) deep, but the Zhemchug Canyon, located in the middle of the Bering Sea, is 8,530 feet (2,600 meters) deep.
The Grand Canyon is 277 miles (446 kilometers) long, but the Kroenke Canyon in the western Pacific Ocean is 480 miles (700 kilometers) long. It is the longest and the most voluminous submarine canyon yet discovered.
There are around 10,000 submarine canyons on Earth, covering around 11% of the continental slope, and they are an important source of ocean biodiversity, they transport sediment and pollution and they can create hydrocarbon reservoirs.
Despite their size and importance, they are still a frontier for scientific research - a new 6,890-foot (2,100 meter) canyon was discovered last year off Antarctica by acousticians on board the icebreaker RSV Nuyina.
Earlier this year, scientists at MBARI developed a new investigative technology, Geo-Sense, a new portable instrument that uses distributed acoustic sensing (DAS) technology for long-term, high-resolution monitoring of geological processes in canyons. DAS involves sending ultrashort pulses of laser light down a fiber-optic cable and analyzing millions of tiny reflections (backscatter) to essentially convert the cable
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