Sentences with phrase «analyzed isotopic»

When I analyzed their isotopic composition, the numbers seemed weird at first because they indicated an essentially freshwater environment.»

To create their new temperature record, which spans 3.5 million years at the end of the Cretaceous and the start of the Paleogene Period, the researchers analyzed the isotopic composition of 29 remarkably well - preserved shells of clam - like bivalves collected on Antarctica's Seymour Island.

Rubenstein analyzed the isotopic signatures of feathers from wintering warblers to reveal the location of their breeding sites.

How the researchers determined this was a neat trick, involving balancing the vent site's CO2 budget by measuring the amount of CO2 in seawater in the vent fluid; analyzing the isotopic makeup of the CO2; and radiocarbon dating the CO2.

Analyzing the isotopic content of RNA can permit substrate tracking through microbial communities when a labeled substrate is applied.

Not exact matches

These spectrometers analyze a narrow range of molecular weights with great precision and allow scientists to determine precisely the ratio of the isotopic constituents of matter.

They measured and analyzed the samples for inorganic contaminants and to identify the unique isotopic signature, or fingerprint, of Bakken region brines.

Each sample is brought to the surface, analyzed for its nitrate concentration and labeled with an isotopic signature.

To better understand the likelihood of such a scenario in the Earth - Moon system's origin, Richard C. Greenwood and colleagues analyzed the oxygen isotopic compositions of a large set of lunar and terrestrial samples.

Working with Miller and doctoral student Abraham Padilla at Vanderbilt, Joe Wooden at Stanford University, Axel Schmitt and Rita Economos from UCLA, Ilya Bindeman at the University of Oregon and Brennan Jordan at the University of South Dakota, Carley analyzed about 1,000 zircon crystals for their age and elemental and isotopic compositions.

The scientists analyzed the samples» isotopic ratios — a telltale chemical signature of what the animals ate during their lifetimes.

Using chemical, biological, optical, and isotopic measurements, researchers from Québec, Denmark, Finland, and Sweden have analyzed hundreds of samples from 14 circumpolar regions spanning from Alaska to Russia (from the subarctic zone to the High Arctic).

Jessica Oster from Vanderbilt University walks Mike through the long, incredibly long, process of permitting, extracting, transporting, sampling, analyzing, and understanding the isotopic signals encoded in these bedeviling but transporting recorders.

Using a laser technique which removes negligibly small amounts of dental enamel, and analyzing trace amounts of isotopic Strontium, they found individuals with small teeth roamed more widely from their birthplace than did individuals with large teeth.

To determine whether a uniform methane isotopic signature can be identified from specific wetlands, Fisher et al. analyzed hundreds of samples collected in and above five Arctic wetlands in northern Norway, Sweden, and Finland.