Scientists Discover a Boiling World Under the Greek Sea Off Milos Island

Sampling fluids astatine 180 degrees Celsius disconnected Milos Island. Credit: MARUM – Center for Marine Environmental Sciences, University of Bremen

Scientists precocious stumbled upon thing unthinkable conscionable disconnected the seashore of the Greek land of Milos. While exploring the seafloor with high-tech underwater robots, they recovered a monolithic tract of hydrothermal vents—essentially underwater chimneys and cracks that spew boiling hot, gas-rich h2o from heavy wrong the Earth.

The squad was “stunned” by what they saw. Usually, these vent fields are small, but this 1 is huge. The seafloor determination is crisscrossed with progressive “fault lines” (cracks successful the Earth’s crust). These cracks enactment similar elephantine straws, allowing blistery fluids to emergence up and burst done the seabed.

The presumption done the robot’s cameras was spectacular: shimmering, boiling h2o rising into the acold oversea and thick, colorful “microbial mats”—essentially carpets of unusual bacteria that thrive connected the chemicals being pumped retired of the earth. The “microbial mats” supply a uncommon look astatine however beingness mightiness person started connected aboriginal Earth oregon however it could beryllium connected different planets (like Jupiter’s moon, Europa).

Milos is present officially location to 1 of the astir important underwater volcanic systems successful the Mediterranean.

The hydrothermal vents disconnected Milos

The surveys, published successful a survey successful Scientific Reports, revealed antecedently chartless hydrothermal enactment astatine depths ranging from 100 to 230 meters.

“We ne'er expected to find specified a ample tract of state flares disconnected Milos,” says Solveig I. Bühring, elder writer of the survey and idiosyncratic astatine the MARUM — Center for Marine Environmental Sciences, University of Bremen, who led the expedition during which the vents were discovered.

“When we archetypal observed the vents done the ROV cameras, we were stunned by their diverseness and quality — from shimmering, boiling fluids to heavy microbial mats covering the chimneys.”

First writer Paraskevi Nomikou of the National and Kapodistrian University of Athens explains that the statement of the vent clusters intimately mirrors the island’s underlying responsibility structure.

“Our information intelligibly amusement that the state flares travel the patterns of the large responsibility systems astir Milos,” Nomikou explains. “Different responsibility zones power antithetic vent clusters, particularly wherever respective faults meet. These tectonic structures powerfully power however and wherever hydrothermal fluids scope the seafloor.”

Building connected this work, researchers are readying a travel up expedition to Milos, the Kolumbo submarine volcano adjacent Santorini, and Nisyros.