Pozzo del Merro is a flooded sinkhole in the countryside northeast of Rome, Italy. Situated at the bottom of an 80 m conical pit, at 392 m (1,286 ft) it is the second deepest underwater vertical cave in the world. In 2000 two ROVs were sent to explore its depths; the first, the "Mercurio (Mercury)" reached its maximum operative depth of 210 m (690 ft) without reaching the bottom. The second ROV, "Hyball 300", reached 310 m (1,020 ft) without touching down either.[1] A third dive in 2002 with the more advanced "Prometeo" robot reached the bottom at 392 m (1,286 ft), but discovered a narrow passage continuing horizontally.[1]
^ abAnt, Simon. "MSTD - Caves and Wrecks technically explored !". web.infinito.it. Retrieved 2018-08-24.[permanent dead link]
^"VOLCANICALLY INFLUENCED SPELEOGENESIS: FORMING EL SISTEMA ZACATÓN, MEXICO AND POZZO MERRO, ITALY, THE DEEPEST PHREATIC SINKHOLES IN THE WORLD". gsa.confex.com. Retrieved 2018-08-24.
pozzo, merro, flooded, sinkhole, countryside, northeast, rome, italy, situated, bottom, conical, second, deepest, underwater, vertical, cave, world, 2000, rovs, were, sent, explore, depths, first, mercurio, mercury, reached, maximum, operative, depth, without,. Pozzo del Merro is a flooded sinkhole in the countryside northeast of Rome Italy Situated at the bottom of an 80 m conical pit at 392 m 1 286 ft it is the second deepest underwater vertical cave in the world In 2000 two ROVs were sent to explore its depths the first the Mercurio Mercury reached its maximum operative depth of 210 m 690 ft without reaching the bottom The second ROV Hyball 300 reached 310 m 1 020 ft without touching down either 1 A third dive in 2002 with the more advanced Prometeo robot reached the bottom at 392 m 1 286 ft but discovered a narrow passage continuing horizontally 1 Pozzo del MerroLocationSant Angelo Romano Lazio ItalyCoordinates42 02 21 N 12 40 50 E 42 039298 N 12 680456 E 42 039298 12 680456Depthc 392 mThe sinkhole similar to the Zacaton cenote was formed by volcanic activity eroding the carbonate rock 2 References edit a b Ant Simon MSTD Caves and Wrecks technically explored web infinito it Retrieved 2018 08 24 permanent dead link VOLCANICALLY INFLUENCED SPELEOGENESIS FORMING EL SISTEMA ZACAToN MEXICO AND POZZO MERRO ITALY THE DEEPEST PHREATIC SINKHOLES IN THE WORLD gsa confex com Retrieved 2018 08 24 42 02 21 N 12 40 50 E 42 0393 N 12 6805 E 42 0393 12 6805 nbsp This geology article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Pozzo del Merro amp oldid 1031856458, wikipedia, wiki, book, books, library,
