Scientists puzzled by mysterious holes seen in the Atlantic


Alfredo Graça Meteored Portugal Yesterday 5 min The mid-Atlantic ridge still holds many secrets, well hidden at the bottom of the seas. What are the mysterious holes that follow a uniform pattern? The National Oceanic and Atmospheric Administration (NOAA) of the United States has shared a discovery at the bottom of the Atlantic that has “puzzled” scientists, as shown by the agency on Twitter (below) . During a recent expedition to the Mid-Atlantic Ridge, an underwater rise that separates some of the major tectonic plates, oceanographers found a series of holes, in a straight line, that appeared to dig into the sea floor. “During Saturday’s dive, we saw several sets of sub-linear holes on the sea floor. The origin of the holes has puzzled scientists (…) The holes appear to have been made by humans, but the small piles of sediment in their around suggest they were cut by something. Is that your guess?” asks NOAA.Researchers aboard the ship Okeanos discovered the mysterious holes on July 23, when they used a submersible robot to explore a volcanic mountain range north of the Azores archipelago near Portugal. Holes in the seabed are not uncommon, but to the surprise of scientists, the ones discovered revealed a uniform pattern, almost like they were made by human hands, except that the holes are 2.5 km deep. . The so-called mystery. holes in the bottom of the Atlantic Ocean seen up close. Source: NOAA Ocean Exploration A week later, researchers identified four more sets of holes about 300 miles apart. “We attempted to look at the holes and drill them with the remotely operated vehicle’s tools, but were unable to do so,” NOAA explained in a news release. It’s not the first time these holes have appeared. Despite this surprising discovery, it is not the first time that oceanographers have detected these holes. In 2004, an expedition to the same area led by scientists Michael Vecchione and Odd Aksel had already detected several sets of holes. Scientists then called them lebensspuren, a German word that could be translated as “traces of life”. On Saturday’s #Okeanos dive, we saw several sub-linear sets of holes on the sea floor. The origin of the holes has puzzled scientists. The holes look human-made, but the small mounds of sediment surrounding them suggest they were dug by… something. What is YOUR hypothesis?—NOAA Ocean Exploration (@oceanexplorer) July 25, 2022 Vecchione and Aksel were unable to determine where the holes came from or how they were made. They speculated that the sediments found near the holes could indicate the digging and mining of sediments by a seafloor-dwelling organism, or possibly the food remains of a large animal. The longest mountain range in the world In addition to the holes discovered in the seabed, the ridge of the Mid-Atlantic still hides many secrets. With a length of more than 16,000 km, this underwater mountain range is the longest mountain range in the world. In it, on the one hand, the Eurasian and North American plates and, on the other hand, the African and South American plates converge. Missions like those of the Okeanos ship are useful for scientists to better understand seismic movements and hydrothermal vents, which are fissures or fumaroles from which hot water flows, because they are located in areas where magma from the Earth’s interior is close to the surface.
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