Sentences with phrase «in ancient oceans»

Oxygen present in ancient oceans oxidized dissolved iron, which precipitated out of solution onto the ocean floors.

Since 1750, man has emitted roughly 1,500 gigatons of carbon, which is more than 100 times less than the 154,000 GT dissolved in ancient oceans, and they were still alkaline...

Cephalopods emerged as predators in the ancient oceans over three hundred million years ago.

Cephalopods, which include not only octopus but also squid, cuttlefish and nautilus, emerged as predators in the ancient oceans over 400 million years ago.

Those sites gave her the chance to gather fossils from many different depths in the ancient ocean, from the more oxygen - rich surface waters to deeper zones.

Cooler (bluer) plateaus in Venus» southern atmosphere may be composed of older rocks produced by plate tectonics with volcanoes in an ancient ocean (more).

Not exact matches

In reference to the flood, one of the most important points to grasp is that in ancient Middle Eastern cosmology, the waters of the world — especially large bodies of water such as the ocean and the sea — were considered to be the dwelling places of powerful deitieIn reference to the flood, one of the most important points to grasp is that in ancient Middle Eastern cosmology, the waters of the world — especially large bodies of water such as the ocean and the sea — were considered to be the dwelling places of powerful deitiein ancient Middle Eastern cosmology, the waters of the world — especially large bodies of water such as the ocean and the sea — were considered to be the dwelling places of powerful deities.

Most of the cosmologies in the ancient world began with a cosmic ocean, darkness and a generalized formlessness — just as Genesis does: «And the earth was without form and void, and darkness was upon the face of the deep» (1:2).

Origin: An ancient ocean underneath the Appalachian Mountains in West Virginia Tasting notes: Shimmery crystals that linger on the palate Try it: as a finishing seasoning for a steak or pork chop.

Telescopes spied water in ice caps at the Red Planet's poles, as well as signs of an ancient ocean covering the northern hemisphere.

Researchers analyzed the levels of various trace elements in hundreds of samples of carbon - rich shales that had been deposited in oxygen - poor regions of the ocean surrounding ancient continents during the past 3.5 billion years.

ANCIENT flying fish could make waves in our picture of prehistoric oceans.

«The pore spaces, or tiny holes, in the rock remain filled with these ancient oceans, so when we drill wells today that water is produced to the surface,» Tinker says.

In some ancient eras, according to other recent work on ocean chemistry, marine animals lived in «worlds of lower oxygen,» Lyons sayIn some ancient eras, according to other recent work on ocean chemistry, marine animals lived in «worlds of lower oxygen,» Lyons sayin «worlds of lower oxygen,» Lyons says.

For all the skill and craftsmanship evident in the Mersa Gawasis caves, ancient Egypt's ocean voyages were most likely an exception to the usual modes of trade, born out of necessity in order to obtain exotic raw materials.

The majority of this wastewater is ancient ocean brine that was trapped in rock layers along with gas and oil deposits.

In 1976, the ocean explorer Jacques Cousteau found some ancient remains there, and Foley suspected that Dia might be a fertile site for shipwrecks because its steep cliffs could be lethal to vessels caught in a storIn 1976, the ocean explorer Jacques Cousteau found some ancient remains there, and Foley suspected that Dia might be a fertile site for shipwrecks because its steep cliffs could be lethal to vessels caught in a storin a storm.

He reached latitudes in some parts of his circuit which have even at the present time been scarcely surpassed, and, disproving the ancient beilef in a great Terra Australis Incognita extending northward of the sixtieth degree parallel of south latitude, the state of geographical knowledge such that the maps after his time mark «Antarctic Ocean» across the regions of the South Pole.

The legendary limits of the Terra Australis of ancient and medieval cartographers, whose northerly coast was represented in art in the time of Ptolemy as extending eastward from Southern Africa toward China and inclosing the Indian Ocean, began to recede to the southward on the map of the world in the generation which produced Columbus, da Gama, and Magellan and disclosed America, the route to the Indies, and the circumnavigation of the globe.

«Rock exposed in World War I trenches offers new fossil find: Sea lily ancestors spent youth hitchhiking around ancient oceans, discovery suggests.»

They analyzed compounds in the rock produced by algae to track ancient ocean temperatures.

The discovery, reported in the current issue of Nature Communications, logs a number of firsts: the first record of ancient tsunami activity found in a sea cave; the first record for such a long time period in the Indian Ocean; and the most pristine record of tsunamis anywhere in the world.

As scientists continue finding evidence for life in the ocean more than 3 billion years ago, those ancient fossils pose a paradox.

A global relief map of Mars shows low elevations in blue, where ancient oceans likely covered much of the northern hemisphere.

Instead, Grotzinger says, their model was meant to duplicate how chemicals and sediments might settle out of water in a hot ancient ocean rich with the calcium carbonate typically found in stromatolite layers.

They are also thought to have helped aerate ancient seas, boosting life in the oceans some 750 million years ago.

However, ancient zircon crystals in sedimentary rocks provide evidence that our planet had liquid oceans, at least intermittently, during this earliest period.

The shale, named for the town of Eagle Ford, TX, is a geologic remnant of the ancient ocean that covered present day Texas millions of years ago, when the remains of sea life (especially ancient plankton) died and deposited onto the seafloor, were buried by several hundred feet of sediment, eventually turning into the rich source of hydrocarbons we have today.The shale was first tapped in 2008 and now has around 20 active fields good producing over 900 million cubic feet per day of natural gas.

In the April 2 SN: The rising threat of Zika, psychobiotics, sticky - fingered baby Jupiter, big chill for ancient oceans, microbes and malnutrition, Van Gogh's palette revealed, a literary leech and more.

Washington state is a bit ahead of that curve because ancient carbon stores in the deep ocean are periodically churned up by local currents.

A series of robotic missions, from Viking in the 1970s to the Spirit rover still roaming Mars today, have observed ancient riverbeds and polar ice caps storing enough water to submerge the entire planet in an ocean 40 feet deep.

In the depths of the Arctic Ocean, buried deep in the sediment, an ancient creature waited for over a million years to be discovereIn the depths of the Arctic Ocean, buried deep in the sediment, an ancient creature waited for over a million years to be discoverein the sediment, an ancient creature waited for over a million years to be discovered.

Paleontologists sometimes build timelines from ancient ocean beds, where 100 million years of sediment layers are often stacked in one continuous sequence.

Our goal was to fingerprint the source of methane in the Arctic Ocean to determine if ancient methane was being liberated from the seafloor and if it survives to be emitted to the atmosphere,» says Sparrow, who conducted the study, published in Science Advances, as part of her doctoral research at the University of Rochester.

Trapped in ocean sediments near continents lie ancient reservoirs of methane called methane hydrates.

But he cautions that the rapid increase in the extent of worms» burrowing modeled in the new study may have been limited to some areas of the ancient ocean and has yet to be shown to be a global phenomenon.

This research not only provides the first clear evidence that microorganisms were directly involved in the deposition of Earth's oldest iron formations; it also indicates that large populations of oxygen - producing cyanobacteria were at work in the shallow areas of the ancient oceans, while deeper water still reached by the light (the photic zone) tended to be populated by anoxyenic or micro-aerophilic iron - oxidizing bacteria which formed the iron deposits.

Their migration spanned half the globe and their culture was spread across the Pacific and Indian Oceans; but in Madagascar, the ancient Indonesians left behind a mystery.

The new findings on Arctic Ocean salinity conditions in the Eocene were calculated in part by comparing ratios of oxygen isotopes locked in ancient shark teeth found in sediments on Banks Island in the Arctic Circle and incorporating the data into a salinity model.

The ancient large Anza River flowed in a southeastward direction to the Indian Ocean.

«At the same time as this eclectic mix of ancient and modern - type marine mammals was living together, the marine mammal fauna in the North Atlantic and Southern Ocean were already in the forms we find today.»

«Ancient Earth may have made its own water: Rock circulating in mantle feeds world's oceans even today, evidence suggests.»

So it remains a mystery how the first long gene - length chains of RNA could have taken shape in Earth's ancient oceans.

A land - ocean pattern like that above was used in a climate model to show how storm clouds could have shielded ancient Venus from strong sunlight and made the planet habitable.

Venus may have had a shallow liquid - water ocean and habitable surface temperatures for up to 2 billion years of its early history, according to computer modeling of the planet's ancient climate by scientists at NASA's Goddard Institute for Space Studies (GISS) in New York.

As the D14L protein is also involved in plants developmental responses to light Paszkowski talks of a «gut feeling» that — with this ancient protein responding to light, atmosphere (through smoke detection) and soil environment (through fungal symbiosis)-- it could have been a developmental crossroads vital to plants» evolutionary leap out of the oceans.

Scheduled for launch in May, it will place a seismometer on the surface to probe the interior and perhaps find frozen remnants of that ancient ocean, or even liquid water.

The location and amounts of iron in the rock gave important clues about ancient ocean water chemistries over time.

Beyond the sea level rise itself, the ancient geologic and geographic changes probably led to a buildup of oxygen in the atmosphere and a change in ocean chemistry, allowing more complex life - forms to evolve, he said.

In fact, planetary scientists have determined that in Mars» ancient past, «mega-tsunamis» swept across the planet after two separate large meteorites struck the red planet, permanently changing the Martian terrain — but also leaving evidence Mars was once covered in cold, salty oceanIn fact, planetary scientists have determined that in Mars» ancient past, «mega-tsunamis» swept across the planet after two separate large meteorites struck the red planet, permanently changing the Martian terrain — but also leaving evidence Mars was once covered in cold, salty oceanin Mars» ancient past, «mega-tsunamis» swept across the planet after two separate large meteorites struck the red planet, permanently changing the Martian terrain — but also leaving evidence Mars was once covered in cold, salty oceanin cold, salty oceans.