Sentences with phrase «sensitive oxygen isotope»

Because of the rapid growth rate of the snails, which are a widespread invasive species in India, moisture - sensitive oxygen isotope ratios in growth bands in the animals» shells preserve week - to - week rainfall rates, the researchers found.

Because of the rapid growth rate of the snails, which are a widespread invasive species in India, moisture - sensitive oxygen isotope ratios in growth bands in the animals» shells preserve week - to - week rainfall rates, the researchers found.

Not exact matches

But the team's measurements of the oxygen isotope ratios in the creatures» teeth, a sensitive paleo - thermometer, suggest that the climate where these dinosaurs lived probably averaged about 10 ° Celsius over the course of a year — substantially colder than most of the dinosaur era, and in fact close to that seen in northeastern China today, Xu notes.

The scientists examined surveys of the ratio of strontium to calcium content and heavy oxygen isotopes, both are sensitive recorders of sea surface temperatures past and present.