Sentences with phrase «of deep sea vents»

Recent research suggests that the element mix in ancient hot springs would have been more likely to give rise to life than that of deep sea vents.

Not exact matches

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.

Of the 30 or so trace elements Geotraces scientists are studying, some — such as iron and copper — are naturally occurring nutrients supplied by dust storms and deep - sea vents.

She describes her project as studying hyperthermophilic archaea, the living occupants of deep - sea hydrothermal vents that survive in extreme heat, pressure, and chemical toxicity.

Given developing efforts to mine deep - sea hydrothermal vent fields for precious metals, the scientists involved in this research suggest that conservationists and management agencies need to consider a broader range of factors in their efforts to predict the environmental impacts and the resiliency of affected communities.

Either that it began in deep sea hydrothermal vents, or alternatively that it began on land in a version of Charles Darwin's «warm little pond.»

Deep - sea hydrothermal vents give rise to some of the most bizarre forms of life on the planet, such as blind albino crabs.

Robert Hazen and Jay Brandes and their colleagues at the Carnegie Institution of Washington's Geophysical Laboratory wondered whether the high pressures and temperatures found at deep - sea vents could have helped churn it out.

Map of current land and ice separating the Weddell and Ross seas, courtesy of Wikimedia Commons / Wutsje / CIA Octopuses have made themselves at home in most of the world's oceans — from the warmest of tropical seas to the deep, dark reaches around hydrothermal vents.

Starting in the 1980s, many scientists argued that life got its start in the scalding, mineral - rich waters streaming out of deep - sea hydrothermal vents.

Better knowledge of what governs the patterns of life at deep - sea vents will enable responsible decisions about how to manage these deep - ocean resources

In contrast to the Pescadero and Alarcón vents, each of which hosted a single species of deep - sea clams, the seeps support at least four different types of clams.

Although bacteria live almost everywhere, from some 40 miles high in the atmosphere to deep - sea vents, 94 percent of them live in the top 1,300 feet of Earth's surface.

Every now and then we stumble upon a new species of lemur in an obscure jungle or an exotic bacterium in a deep - sea vent, but at this point we are unlikely to discover something truly astonishing, like dinosaurs dwelling in a secluded cavern.

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.

It makes its home in the walls of deep - sea hydrothermal vents.

That began to change last year with the discovery of DNA sequences for an organism that no one has ever actually seen living near a deep - sea vent on the ocean floor.

Instead of seeking the standard quarry of deer or wild boar, Schleper was in search of Lokiarchaeota, or Loki, a newly discovered group of organisms first identified near deep - sea vents off the coast of Norway.

The sub brought up a rib from the mammoth carcass, and the researchers soon discovered the fiery plumes to be the gills of two entirely new species, related to worms, that live near deep - sea hydrothermal vents.

More data is needed to confirm the connection between eddies and the transport of vent products, Thomson says, but he also acknowledges the extraordinary resources required to gather longitudinal data on deep - sea phenomena.

A new study published April 29 in Science suggests that eddies may have a deeper reach than previously thought, helping to shape some of the most remote ecosystems on Earth — deep - sea hydrothermal vents.

Deep - sea gastropods, like snails and mussels, have been found hundreds of kilometers from their native vents.

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.

The particular chemistry and high pressures of vent habitats are difficult to replicate on terra firma, so the majority of deep - sea species have not been cultured in laboratories and much is unknown about their life cycles.

The results launched a hunt for life's origins that's now uncovering these building blocks in surprising places, like the surface of comets and in 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.

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.

«Snffing out origins of methane: instrument identifies methane's origins in mines, deep - sea vents, and cows.»

Other manned submersibles can not dive deeper than about seven kilometers, says Lutz, who has made more than 85 underwater voyages on board the mini sub Alvin and was part of the first deep - sea exploration of hydrothermal vents in 1979, when he was a postdoc at Yale University.

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.

Grassle's work ultimately revealed that a diverse community of organisms thrives along deep - sea hydrothermal vents, feasting on organic matter produced by sulfur - oxidizing bacteria instead of photosynthesis.

In the deep gold mines of South Africa, and under the sea, at hydrothermal vents where breaks in the fissure of Earth's surface that release geothermally heated waters — hydrogen - rich fluids host complex microbial communities that are nurtured by the chemicals dissolved in the fluids.

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

The remarkable density of life at deep - sea hydrothermal vents is explained by the mutually beneficial symbiosis of invertebrate animals and sulfide - oxidizing bacteria that colonize their cells

The other, which has gained popularity in recent years, is that deep - sea vents at the bottom of the ocean acted as a cradle for life, offering both heat and nutrition via fluids pumped up through Earth's crust.

Glover hypothesizes that young, prehistoric tubeworms may have been traveling from one deep - sea vent to another when they came across the carcass of a marine animal.

Many distant worlds have never received as much light as Earth, but it is suspected that some of them have hydrothermal systems similar to Earth's deep - sea vents.

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.

Deep - sea vents, first directly observed only 20 years ago, have become of increasing interest as a possible origin of the planet's life.

Shannon notes that most of the inspiration for the appearance of aliens in Hollywood science fiction movies comes from places like deep sea vents, which are home to everything from giant bone - eating worms to «rainbow glitter» jellyfish.

One of the most prevalent theories as to how life evolved on Earth is through chemical reactions at deep sea hydrothermal vents.

By Year 1.1 billion, deep - sea hematite - bearing rock found in the Marble Bar chert formation of northwestern Australia indicates that iron - rich water gushed from volcanically heated seafloor vents were able to mix with cooler oxygen - rich seawater (Ohmoto et al, Nature Geoscience, March 15, 2009; PSU press release, and in EurkaAlert; and Sid Perkins, ScienceNews, April 11, 2009).

Specific enrichment of hyperthermophilic electroactive Archaea from deep - sea hydrothermal vent on electrically conductive support — Guillaume Pillot — Bioresource Technology

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.

«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.

The quantitative population ecology of zooplankton with emphasis on zooplankton small - scale distribution and abundance, organic matter transport into the deep - sea, the biology of Gulf Stream Rings, zooplankton associated with deep - sea hydrothermal vents, dynamics of populations on Georges Bank and on the continental shelf region of the Western Antarctic Peninsula, acoustical determination of zooplankton biomass, abundance, and size, and the census of holozooplankton biodiversity in the worlds oceans.

Subsequent explorations by the deep - sea submersible Alvin revealed not only the presence of hydrothermal vents, but also a startling array of giant worms, clams, and mussels.

Suggested Reading: The Octopus's Garden: Hydrothermal Vents and Other Mysteries of the Deep Sea, Cindy Lee Van Dover, 1996, Addison Wesley Press

These oceans can be kept warm despite their great distance from the Sun because of gravitational interactions between the moons and their host planet, and they might support the kind of life found in deep sea vents on Earth.