Small variations in clumped O2 isotopes reflect temperatures in the upper troposphere. Bubbles measured in polar ice cores show the global lapse-rate appears to steepen during the Last Glacial Maximum.
Isotopic composition and chemistry
Posted inNews
Fresh Take on a Gold Treasure’s Origins Using Geochemistry
Blending geoscience and archaeology, researchers apply a new technique to pinpoint where ancient and unique gold artifacts were crafted.
Posted inResearch Spotlights
Searching for Organic Carbon in the Dry Valleys of Antarctica
Researchers identify the first evidence of microbial respiration in desiccated Antarctic permafrost soils.
Posted inResearch Spotlights
Isotopes Track Carbon Cycle in Northern Wisconsin Wilderness
Researchers collected carbon from 3 years' worth of air samples and traced it back to its source.