Sentences with phrase «find hydrothermal»

New investigations by a team of ten scuba divers during the multinational (France, Zaire, Germany, and Burundi) TANGANYDRO expedition (August - October 1991) found hydrothermal vents down to a depth of 46 m along north - trending active faults bounding the Tanganyika rift on the western side.

Not exact matches

We started finding the same organisms that people were reporting from deep - sea hydrothermal vents [where hot, mineral - laden fluid flows through volcanic rock into the ocean from deep within the Earth].

We found that the particles seen in our images, which were droplets of ocean only hours earlier, bore evidence of large organic molecules and compounds that indicated hydrothermal activity similar to that observed at deep - sea vents on Earth's seafloor.

Rocks found in Greenland in 2007 suggest hydrothermal vents were present 3.8 billion years ago, just before life is thought to have originated.

The name Lokiarchaeota is derived from the hostile environment close to where it was found, Loki's Castle, a hydrothermal vent system located on the Mid-Atlantic Ridge between Greenland and Norway at a depth of 2,352 meters.

Image of a hydrothermal vent field along the Arctic Mid-Ocean Ridge, close to where «Loki» was found in marine sediments.

This is a pastel painting of a new species, Xenoturbella profunda, found by researchers in a hydrothermal vent in the Gulf of California.

These include a groundwater sample found nearly 2 miles deep in a South African gold mine and at hydrothermal vents on the ocean floor.

While hydrothermal activity can produce considerable quantities of hydrogen, in porous rocks often found under seafloors, radiolysis could produce copious amounts as well.

Farmer helped select the landing site for Mars Pathfinder and thinks that the Mars Surveyor and Mars Odyssey spacecraft now in orbit have begun the job of meeting the first - stage requirements of finding potential ancient hydrothermal systems — for example, the Mars hematite site at Terra Meridiani.

They are related to organisms found in deep - sea hydrothermal vents.

J. H. Waite et al., «Cassini finds molecular hydrogen in the Enceladus plume: Evidence for hydrothermal processes,» Science 356, 6334 (14 April 2017)

Pohlman believed chemosynthetic bacteria, like the kinds found around deep - ocean hydrothermal vents, must be the answer.

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.

Key hypotheses of the origin of this soil include hydrothermal activity generating sulfate - rich, hydrated deposits on early Mars similar to what is found along the flanks of active Hawaiian volcanoes on Earth.

Forty years ago when hydrothermal vents on the ocean floor were first discovered, scientists were amazed to find life where no sunlight penetrated, feeding off of sulfur gases.

This finding is consistent with field observations suggesting that smaller seamounts are favored as sites of hydrothermal discharge.

Alkaline hydrothermal vents are found on the seafloor near where tectonic plates meet.

He found them in sediment collected from a hydrothermal vent, sent to him by a retired oceanographer.

What we have found out since then: These «black smokers,» also called hydrothermal vents, exist in all oceans.

Geochemist Nicholas Tosca of Harvard University and his colleagues calculated the salinity of long - gone waters from the composition of the salts left behind both at Meridiani Planum, where the Opportunity rover found the remains of salty groundwater, and at Gusev crater, where Spirit found volcano - related hydrothermal deposits.

Recently, Okinawa Institute of Science and Technology Graduate University (OIST) researchers and collaborators have computed the dispersal of larvae from these hydrothermal vent ecosystems to understand and safeguard the animals found there.

Finding out how methane and other organic species are formed in deep - sea hydrothermal systems is compelling because these compounds support modern day life, providing energy for microbial communities in the deep biosphere, and because of the potential role of abiotically - formed organic compounds in the origin of life.

Lost Nucleotides Although Alexander S. Bradley's article «Expanding the Limits of Life» provides a fascinating account of the discovery of microbes in a previously unknown kind of hydrothermal vent ecosystem on the seafloor, it does not substantiate his claim that the findings hint that life may have originated in an environment like the Lost City hydrothermal vent.

The findings support the idea that the last universal common ancestor (LUCA) lurked in hydrothermal vents where hot water rich in hydrogen, carbon dioxide and minerals emerged from the sea floor.

The findings strengthen the case that the lake contains a hydrothermal vent.

Some of the oldest microorganisms on Earth, called methanogens, are often found near hydrothermal vents like those we suspect also exist on Enceladus (see main story).

Curiosity's landing site may once have been a lake, but other intriguing sites suggest life might have found a refuge in hydrothermal springs below the surface.

Silica found in the jets can be produced only in water close to boiling point, indicating that hydrothermal vents are also present in the subsurface ocean — making the icy moon a hot target in the search for life.

«New kind of hydrothermal vent system found in Caribbean.»

The unexpected finding may help explain how the larvae of organisms living at isolated hydrothermal vents can be transported hundreds of kilometers to colonize new vents.

The group is represented by possible habitat generalists (such as the large Enteroctopus dofleini which ranges from the intertidal to depths in excess of 450 m) and specialists (such as Vulcanoctopus hydrothermalis which is found only in hydrothermal vents).

Potential Europan habitats include deep - sea colonies based on heat - loving bacteria like those found around hydrothermal vents on Earth's ocean floor.

A research team — Carnegie's Sergey Lobanov and Alexander Goncharov, along with Konstantin Litasov of the Russian Academy of Science and Novosibirsk State University in Russia — focused on the high - pressure chemistry of a carbonate mineral called siderite, which is an iron carbonate, FeCO3, commonly found in hydrothermal vents.

«It is evocative of the deep - sea hydrothermal environments on Earth, similar to environments where life might be found on other worlds — life that doesn't need a nice atmosphere or temperate surface, but just rocks, heat and water.»

Sending out a spacecraft that can drill through the ice and probe for organisms will be the only way to find out if the moon in question doesn't have vaporous plumes like those that originate in the hydrothermal vents of Enceladus.

More recently, however, microbial life found around hydrothermal vent ecosystems (i.e., the «Lost City» found in the Mid-Atlantic Ridge, which is cooler than those found at «black smokers») indicate that Carbon - 13 is not selected against Carbon - 12 in hydrogen - rich environments where microbial life is starved of carbon, essentially in the form of carbon dioxide (Alexander S. Bradley, Scientific American, December 2009: pp. 62 - 67).

Even after three decades of work, researchers continue to find new hydrothermal vents in remote locations, new species, adaptations, behaviors and microhabitats — some in well - known settings.

The dark depths of our oceans are home to cold - water corals, sponge fields, seamounts, hydrothermal vents and a multitude of other ecosystems that shelter strange and mysterious creatures found nowhere else on Earth.

Image of a hydrothermal vent field along the Arctic Mid-Ocean Ridge, close to where «Loki,» a member of the Asgard group, was found in marine sediments.

The discovery in 1977 of hydrothermal vent communities and giant tube worms emerges as one of the most exciting finds in recent years.

They were inspired by Black Smokers, which are hydrothermal vents found on the seabed.

Scientists at Columbia's Lamont - Doherty Earth Observatory have found evidence of hydrothermal vents on the seafloor near Antarctica, formerly a blank spot on the map for researchers wanting to learn more about seafloor formation and the bizarre life forms drawn to these extreme environments.

Hey Joanne, yet another one of your fans fails to find evidence to support your theory that hydrothermal vents is responsible for the increase in OHC.

We determined the chemical and isotopic compositions of the liquid CO2 found on Yonaguni IV knoll hydrothermal site, as well as those in hydrothermal fluid venting from the surrounding chimneys.

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