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Isotopic composition and chemistry

Posted inEditors' Highlights

New Tool to Decipher Past Upper Troposphere Temperatures

by Susan Trumbore 9 August 202230 August 2022

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.

The Carambolo Treasure
Posted inNews

Fresh Take on a Gold Treasure’s Origins Using Geochemistry

by Kimberly M. S. Cartier 21 May 2018

Blending geoscience and archaeology, researchers apply a new technique to pinpoint where ancient and unique gold artifacts were crafted.

Researchers spot microbial respiration in the dry valleys of Antarctica
Posted inResearch Spotlights

Searching for Organic Carbon in the Dry Valleys of Antarctica

by E. Underwood 6 December 2017

Researchers identify the first evidence of microbial respiration in desiccated Antarctic permafrost soils.

Scientists trace the journey of radiocarbon through trees and soil to the atmosphere.
Posted inResearch Spotlights

Isotopes Track Carbon Cycle in Northern Wisconsin Wilderness

by A. Branscombe 9 November 2016

Researchers collected carbon from 3 years' worth of air samples and traced it back to its source.

Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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