Sentences with phrase «so isotope ratios»
Curiosity will grind up Gale crater minerals and deliver them to SAM so the isotope ratios can be measured, giving a glimpse at the Martian atmosphere from long ago, perhaps when it could have supported life.
http://lasp.colorado.edu/
He probably created radioactivity to begin with, so isotope ratios are likely just some of his lies.
Not exact matches
«Oxygen in the water that mammals drink is preserved in the phosphate in their teeth, so these can be used to calculate isotope ratios.
So Hallis and her colleagues went looking for vestiges of the early Earth that might preserve the original hydrogen isotope ratio of the planet.
They have so much gravity that isotopes can't preferentially escape, so their argon ratio — which is 5.5 — represents that of the primordial solar system.
The ratio of certain radioactive isotopes produced within such a reactor depends on alpha, and so looking at the fission products left behind in the ground at Oklo provides a way to work out the value of the constant at the time of their formation.
The prevalences and isotope ratios of the noble, or inert, gases, such as neon, argon, krypton and xenon, provide a valuable tracer of ancient processes, because they are chemically nonreactive and so do not change much over time.
«We therefore had to use a different method, so we measured the composition of carbon isotopes — the ratio of protein and mineral content — in the fossilized sloth bones,» explains Bocherens, and he continues, «Our measurements show that Megatherium lived on an exclusively vegetarian diet.»
Analyzing the ratios between two Strontium isotopes, 87Sr and 86Sr, researchers can determine differences from place to place on the landscape so uptake of Strontium over a wide area can be distinguished from uptake over a small area.
Rainfall from cyclones contains relatively little heavy oxygen so analysing the oxygen isotope ratio of calcite in stalagmites can reveal the extent of cyclone activity.
Carbon in fossil fuels lacks the C14 isotope and so its ratio to C12 and C13 has been reduced as CO2 from burning fossil fuels has been released into the atmosphere.
In warm weather, the ratio of outgassing to dissolution is slightly higher than in cool weather, so the overall isotope ratio of the exchange changes.
Distributions of biota in soil at various altitudes and latitudes over time, isotope ratios, and so forth might with a global effort create an effective grid that could reconstruct a fraction of what has been lost.