Sentences with phrase «hot hydrothermal»

On Earth, molecular hydrogen, or H2, enters ocean water where hot hydrothermal vents emerge from the ocean floor.

Nevertheless, McGown refuses to conclude that Darwin's «warm little pond» must have actually been a hot hydrothermal vent.

As the hot hydrothermal fluid flows through this mud, it «cooks» organic material, forming methane (natural gas) and oil - like hydrocarbons.

Some escapes via volcanoes and hot hydrothermal vents at midocean ridges.

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].

The impact aftermath killed most life on Earth, but the crater itself (bottom)-- shown with a central peak — remained hot long after the blast, perhaps creating a hydrothermal system similar to deep - sea vents.

Hydrothermal vents pulse hot water out of the seabed and into the ocean.

They can be several tens of metres tall, and grow as minerals are deposited when the hot water meets the cold ocean water at the outlet of the hydrothermal vents.

Hydrothermal chimneys were first observed in 1979, two years after hot springs were discovered close to the Galapagos Islands.

Hydrothermal vents form by an analogous method: Ion - rich hot water is expelled from the seafloor and then begins to dissolve, forming a porous shell of metal extending upward.

The major influences on ocean chemistry today are hydrothermal flow (hot water that has circulated through the crust) and surface weathering (the river transport of material eroded from land into the ocean).

Steaming hot pools and scalding undersea hydrothermal vents provide a cosy habitat for heat - loving extremists.

Ever since their discovery in the late 1970s, the creatures that dwell in the hot, sulfurous hydrothermal vents of the deep sea floor have captivated marine biologists.

But the dominant theory nowadays is that primitive microorganisms first assembled in hot, chemical - rich water at hydrothermal vents at the bottom of the ocean.

New fossil evidence suggests the first spark of life may have occurred in a hot spring on land rather than a hydrothermal vent in the deep sea.

This is one of the main arguments of proponents of the «hydrothermal hypothesis», according to which gold, chemically dissolved in hot fluid, passed into the sediment layers half a billion years after their deposition.

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

Then in 1977, two geochemists — Jack Corliss and John Edmond, diving in the submersible Alvin — discovered the first hydrothermal vent, or volcanic hot spring, on the ocean floor.

In 2009, scientists from Woods Hole Oceanographic Institution embarked on a NASA - funded mission to the Mid-Cayman Rise in the Caribbean, in search of a type of deep - sea hot - spring or hydrothermal vent that they believed held clues to the search for life on other planets.

That means it must be continuously produced there, probably by hydrothermal reactions similar to those that occur near hot vents at the bottom of Earth's oceans (Science, doi.org/b5s9).

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.

ONE species of deep - sea fish incubates its eggs in a seemingly impossible place: the baking hot rocks of hydrothermal vents.

At the other extreme, searing - hot ecosystems spring up around hydrothermal vents on seafloors.

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.

* David Kring explores the hydrothermal system triggered by the impact, including metasomatism (lithologic chemistry altered by hot fluids), and how the system could have incubated new life as it cooled over thousands of years post-impact.

New research is revealing details about how the exoskeleton of a certain type of deep - sea shrimp allows the animal to survive scalding hot waters in hydrothermal vents thousands of feet under water.

Such reactions in hot water under pressure are called hydrothermal syntheses.

Although the evidence was subsequently contested, some single - celled microbial life lacking a nucleus that segregates their internal DNA or RNA («prokaryotes») from the surrounding cytoplasm may have flourished in darkness within cracks in Earth's seafloor crust and around deep, warm or boiling hot ocean springs (hydrothermal or volcanic vents, such as at Lost City or at black smokers) without a need for light or free oxygen in the oceans or atmosphere.

Shannon Johnson uses robots to explore deep - sea hydrothermal vents, where science - fiction - worthy animals live in hot, acidic water and munch on bacteria that can survive in space.

Many organic molecules needed for life could even have formed below the ocean floor from interactions between minerals and circulating hot water driven these hydrothermal ven systems.

In the greater NZ region, we have undersea hot springs (hydrothermal vents of the Kermadecs), marine hydrocarbon seeps and gas hydrates (offshore eastern North Island — possible analogues for oceans on Icy Worlds), and terrestrial (on land) hot springs in the Taupo Volcanic Zone and elsewhere around the country.

There are also microbes that are known to live in incredibly harsh environments on Earth such as in deep - sea hydrothermal vents, acidic lakes and the hot springs of Yellowstone.

Deep - sea skates, relatives of sharks and rays, were discovered laying their eggs adjacent to hot water from hydrothermal vents.

Currently, we are exploring several environmental samples retrieved from allover the world - ranging from hydrothermal vents in Japan to hot springs in Yellowstone National Park and New Zealand — for the presence of novel archaeal (and bacterial) lineages using cultivation - independent approaches, such as metagenomics and single cell genomics.

hydrothermal vent Openings at the bottom of the ocean or a lake where hot water emerges from deep inside the earth.

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.

The most plausible source of this hydrogen is hydrothermal reactions between hot rocks and water in the ocean beneath the moon's icy surface.

You will recall that hydrothermal vents are plumes of hot water that spew from rocks and cracks along the ocean floor, especially in regions of sea - floor spreading, such as oceanic ridges and rift valleys.

The Grand Prismatic hot spring is among the national parks myriad hydrothermal features created by the Yellowstone supervolcano.

The most widely developed type of geothermal power plant (known as hydrothermal plants) are located near geologic «hot spots» where hot molten rock is close to the earth's crust and produces hot water.

Two teams of NASA scientists have discovered evidence that hydrothermal vents on the Saturnian moon of Enceladus show signs of «active hot - water chemistry».

Life on Earth likely began in hydrothermal systems (environments where hot water reacts with rocks), and there is abundant evidence for many locations where hydrothermal environments exists on Mars at the time when life might have originated in similar environments on Earth.

These ideas changed when oceanographers explored hydrothermal vents, openings in the ocean floor where extremely hot, mineral - rich water erupts from the crust.

(b) The ability to grow high quality film and bulk samples by a variety of growth techniques including sputtering, pulse laser deposition (PLD), evaporation, bulk ceramic processing, hydrothermal growth and HIP and Hot Pressing processing can be done under an extremely broad range of temperature and oxygen partial pressure as suggested by theory and experiment.

Greenfield EGS Projects Greenfield EGS developments take place in areas underlain by hot rock, but with no hydrothermal circulation to bring the heat close to the surface.

Hydrothermal plants are sited on geological «hot spots,» which tend to have higher levels of earthquake risk.

The most widely developed type of geothermal power plant (known as hydrothermal plants) are located near geologic «hot spots» where hot molten rock is close to the earth's crust and produces hot water.

Of the remaining 0.5 %, over 4/5 of that comes from geothermal — almost all based on tapping surface volcanic / hydrothermal heat (essentially nothing to date from hot dry rocks).