okay, here’s a revised and fact-checked version of the provided text, incorporating updates as of today, February 4, 2026. I’ve focused on correcting inaccuracies and adding current information regarding the threats to the Lost City. I’ve also noted the changes made.
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NEAR the seamount peaks west of the Mid-Atlantic Ridge lies a landscape of jagged towers known as the Lost City. These towers vary in size, from small piles the size of mushrooms to giant monoliths 60 meters high, with cream-colored carbonate walls that appear pale blue when illuminated by underwater vehicles (ROVs).
This site was first discovered by scientists in 2000 at a depth of more than 700 meters below sea level. Lost city is a hydrothermal vent habitat with an exceptionally long active period – considerably longer than most other known vent systems – and remains unique in its geological and biological characteristics. While similar carbonate-based vent systems have been discovered as 2000, none match the scale and complexity of the Lost City.
Ecosystem and Secrets in Lost City
For at least 120,000 years, reactions between Earth’s mantle and seawater in this region have produced plumes of hydrogen, methane, and other dissolved gases. These reactions occur through a process called serpentinization, where seawater interacts with ultramafic rocks.
Cracks in these vents produce hydrocarbons that provide a food source for unique microbial communities that thrive without oxygen. Despite the relatively cool temperatures (reaching around 40°C),this area is inhabited by diverse communities of snails,crustaceans,and microbial mats. Larger animals such as crabs, shrimp, and eels are also found here, though in smaller numbers.
The scientific significance of the Lost City was further amplified by recent research. In 2024, researchers successfully retrieved a 1,268-meter-long mantle rock core sample from the site. Analysis of these samples is providing crucial insights into the geochemical processes that support life and possibly illuminate the conditions under which life originated on Earth billions of years ago.Further analysis in 2025 revealed evidence of complex organic molecules within the core sample,strengthening the hypothesis of a potential origin-of-life environment.
The hydrocarbons in the Lost City are formed through seafloor chemical reactions, independent of sunlight or atmospheric carbon dioxide. This has fueled speculation that life could have originated in similar habitats, such as those potentially existing beneath the icy surfaces of Jupiter’s moon Europa or Saturn’s moon Enceladus, which are believed to harbor subsurface oceans.
Comparison with Black Smokers
Lost City differs significantly from typical volcanic vents, often called “black smokers.” The primary distinction lies in its energy source,which doesn’t rely on volcanic heat.It also boasts hydrogen and methane concentrations up to 100 times greater than those found at black smokers. Furthermore, the calcite structures in the Lost City are much larger and more stable over geological timescales.
One of the tallest structures, Poseidon, rises more than 60 meters, and in the northeast, smooth carbonate formations resemble fingers extending from the cliffs due to fluid seepage. Recent mapping in 2025 has revealed previously unknown structures within the Lost City field, expanding the known area of the vent system.
The Threat of Damage – Increased Concern
The existence of the Lost City is facing increasing threats from potential deep-sea mining activities. In 2018, the International Seabed Authority (ISA) granted exploration licenses to several companies, including Polish firm DeepSea Minerals, covering areas adjacent to the Lost City. While the main vent field itself is not currently within a licensed area, concerns remain that mining activities in the surrounding region could cause meaningful damage to the ecosystem through sediment plumes, noise pollution, and potential disruption of hydrothermal flow.
In 2023, a moratorium was called for by many scientists and environmental groups, urging a halt to deep-sea mining until extensive environmental impact assessments are completed. However, as of February 2026, the ISA is still considering regulations for deep-sea mining, and the threat to the Lost City remains considerable.
Experts are urgently calling for the Lost City to be designated a UNESCO
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