Sentences with phrase «temperature hydrothermal vents»

«Deepest high - temperature hydrothermal vents discovered in Pacific Ocean.»

In addition to immediate release of greenhouse gases from seafloor eruptions, the subsequent increased high and low temperature hydrothermal venting may impact the CO2 output.

Not exact matches

Bacteria thrive virtually everywhere on Earth — from sub-zero temperatures to over 750 degrees F (in hydrothermal vents at the bottom of the ocean), and in widely varying oxygen, pressure and nutrient conditions.

Yet we know that life on Earth can thrive in extreme conditions: from the Antarctic (where temperatures can drop to almost -90 °C) to hydrothermal vents on the ocean floor (where temperatures can exceed 460 °C).

And the Nankai Trough sediments are starkly different from another high - temperature environment, the hydrothermal vents on midocean ridges.

A study described here today at the American Geophysical Union's biennial Ocean Sciences Meeting shows that RNA's chemical building blocks fall apart within days to years at temperatures near boiling — a finding that poses problems for some origin of life theories, especially ones picturing that life arose in scalding settings such as deep - sea hydrothermal vents.

Deep - sea organisms including mussels thrive in the extreme environments of hydrothermal vents and cold seeps which are characterised by high hydrostatic pressure, lack of photosynthesis - derived food, variable temperatures and high concentrations of toxic substances.

The unique temperature conditions of hydrothermal vents like this one could have favored the evolution of complex life.

Now, new research offers a potential solution: Longer RNA chains could have hidden out in porous rocks near volcanic sites such as hydrothermal ocean vents, where unique temperature conditions might have helped complex organisms evolve.

Scientists working off the California coast use chemical - sniffing probes, robotically driven subs, and seafloor - tethered temperature sensors to watch flows of lava pave over a once - thriving ecosystem at hydrothermal vents several kilometers below the ocean's surface.

Deep below the ocean's surface are hydrothermal vent fields, or submarine hot springs that can reach temperatures of up to 400 °C.

Located at 2350 meters» depth on the Mid-Cayman Rise, hydrothermal fluids emanate from the Von Damm vent field at temperatures as high as 226 °C (439 °F).

There are several habitats once thought to be inhospitable to even the world's most adaptable organisms — places like the core of Chile's Atacama Desert, the driest region on Earth; ice sheet plateaus in Greenland that are 10,000 feet thick; and near hydrothermal vents on the ocean floor with temperatures above 750 degrees Fahrenheit, to name a few.

The bizarre habitat gleamed in the lights of an underwater robotic probe as it explored the environs of a seafloor spring spewing water at superhot temperatures — known as a hydrothermal vent.

«We report for the first time, a unique behavior where the deep - sea skate, Bathyraja spinosissima, appears to be actively using the elevated temperature of a hydrothermal vent environment to naturally «incubate» developing egg - cases,» the researchers wrote in the journal Scientific Reports on Feb. 8.

After analyzing the water temperatures and the locations of the eggs, the researchers realized that these littered in hot water around known locations of hydrothermal vents, an opening in the sea floor out of which geothermally heated water flows.

Eventually, the hot, mineral - rich fluid rises again and gushes out of openings in the seafloor — hydrothermal vents — at temperatures up to about 400 degrees Centigrade.

In each segment we located deep - sea hydrothermal vents hosting high - temperature black smokers up to 382.8 °C and diffuse venting.

For example, one can not eliminate deep temperature changes from hydrothermal venting or geodesic changes from effects such as the East Pacific Bulge - or the troublesome class of unknown unknowns.

It was first discovered in 1997 in a black smoker hydrothermal vent at the Mid-Atlantic Ridge, setting the upper temperature threshold for known life to exist at 113 °C.

In a recent expedition near Antartica, researchers from Oxford discovered dozens of remarkable new species thriving in one of the most extreme environments on the planet, alongside deep - sea hydrothermal vents where temperatures can reach over 750F.

At hydrothermal vents, scientists have found mineral - rich fluids with temperatures approaching 400 °C (750 °F) spewing out of the Earth.