The relative abundance of different oxidation states for this important micronutrient varies on the basis of how much available sunlight there is.
Geochemistry
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Community Input Drives Superfund Research
Researchers identified geochemical tracers for lead and investigated Oklahomans’ concerns at the Tar Creek Superfund site.
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Roman-Era Millstone and Mixer Makers Knew Their Rocks
The geochemistry of basalt millstones and mixers from the city of Volubilis suggests a local origin—and that rocks were picked for specific purposes, from crushing olives to mixing dough.
Posted inResearch Spotlights
Cosmic Dust May Be Key Source of Phosphorus for Life on Earth
When tiny particles enter Earth’s atmosphere, a newly described series of chemical reactions may lead to production of phosphorus-containing molecules that are essential for biological processes.
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Shedding Light on Microbial Communities in Deep Aquifers
Researchers use a packer system to study the microbial communities living in waters sampled from deep, uncontaminated peridotite aquifers.
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Lasers Have the Makings of a 21st-Century Geoscience Tool
Laser-induced breakdown spectroscopy is a versatile geochemical tool being used in a wide range of applications, from Mars rovers to earthly rock identification.
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Better Together: Perovskites Boost Silicon Solar Cell Efficiency
Scientists engineer a way to layer materials to boost efficiency without interrupting manufacturing processes.
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State-of-the-Art Technology, Serendipity, and Secrets of Stonehenge
The first comprehensive analysis of what the sarsen stones are made of came about with new technology—and good old-fashioned luck.
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La primera mirada de la meteorización a escala angstrom
Investigadores observan cómo el vapor de agua y el líquido alteran las rocas sedimentarias a través de procesos físicos y químicos.
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Predictive Forensics Helps Determine Where Soil Samples Came From
Researchers deploy geochemical analyses to narrow down the search area for a soil sample’s site of origin—an approach that could prove useful to law enforcement.