Sentences with phrase «inorganic carbon from»

Not exact matches

They found that the isotopic signatures of sulfur (in sulfate), carbon (in dissolved inorganic carbon) and strontium from water samples collected from tributaries adjacent to mountaintop mining sites are distinguishable from those collected from unaffected upstream waters.

Freshwater such as lakes, though, receive various sources of carbon dioxide from decomposing organic and inorganic matter swept into them, which makes it hard for scientists to distinguish between the direct effects of rising atmospheric CO2 and these other elements.

The data come from deep - sea sediment cores dating to 205 million years ago that contain inorganic carbon - rich minerals as well as the organic remains of single celled marine phytoplankton.

If it is Martian in origin, the carbon may be from organic hydrocarbons or inorganic carbonates.

They also describe how two kinds of «nano - engines» that create organic carbon and polymers — energy currency of the first cells — could have been assembled from inorganic minerals.

Cronin is also trying to make living things from cells made of inorganic chemicals (so, chemicals without the atoms, hydrogen, and carbon) in order to show that biology isn't the only way life evolved on Earth.

Sari's research focuses on microbes that control the carbon cycle in habitats where organisms can not fix enough carbon from inorganic sources like carbon dioxide to sustain their food webs.

inorganic arsenic (arsenic that is not bonded to carbon) which is often the kind present from pollution / manufacturing

Now scientists have identified some suspects: «twilight» microbes from 2,625 feet (800 meters) below the ocean surface that are turning inorganic carbon into useable food.

From November to March of each year, satellite instruments detect an abundance of particulate inorganic carbon in far southern waters.

The rate of soil carbon sequestration ranges from about 100 to 1000 kg per hectare per year as humus and 5 to 15 kg per hectare per year inorganic carbon.

The undercurrent is supplied with low pH, low oxygen, and high inorganic carbon waters from the eastern tropical Pacific.

«It's very important to draw the distinction between burning up carbon, actually using it by transforming it from organic into inorganic matter, and just eating it,» he said.

This conclusion accords with measurements of 13C / 12C carbon isotopes in atmospheric CO2, which show a maximum of 4 % anthropogenic CO2 in the atmosphere (including any biogenic CO2), with 96 % of the atmospheric CO2 being isotopically indistinguishable from «natural» inorganic CO2 exchanged with and degassed from the ocean, and degassed from volcanoes and the Earth's interior (Segalstad, 1992).

This is strong evidence that the long term accumulation in atmospheric carbon dioxide (from both organic and inorganic sources) is a natural process....

Using inorganic carbon measurements from an international survey effort in the 1990s and a tracer - based separation technique, we estimate a global oceanic anthropogenic carbon dioxide (CO2) sink for the period from 1800 to 1994 of 118 ± 19 petagrams of carbon.