Sentences with phrase «oxygen isotopic ratios»
Rainfall oxygen isotopic ratios are good indicators of the amount of rainfall occurring throughout the region, as determined by a modern - day calibration study recently published by another graduate student in Cobb's lab.
https://www.sciencedaily.com/ Not exact matches
The ratio of strontium to calcium in a given layer of coral reef — as well as the amount of a heavier isotope of oxygen in the carbonate itself — reflect the temperature in this historical record, but the isotopic information also reveals rainfall.
The information about oxygen concentration comes from the isotopic composition of carbon or rather from the ratio between the stable carbon isotopes 12C and 13C.
Also, the rocks astronauts brought back from the Moon have identical oxygen and titanium isotopic ratios as those on Earth.78 If large impactors came from Earth, most moonquakes should be on the near side.
Within these archives, scientists can measure the isotopic ratios of oxygen and hydrogen to deduce changes over time in the isotopic composition of environmental waters, such as precipitation, seawater, and groundwater.
Looking at the isotopic record from the PETM, scientists see both carbon and oxygen isotope ratios spiking in exactly the way we expect to see in the Anthropocene record.