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An expert in the behavior and properties of rocks and minerals undergoing shock compression, Ahrens studied the dynamics of high-pressure materials inside Earth and other planets. His research also included planetary impacts and the formation of craters and planets.
Some of Ahrens's most important contributions, according to Asimow, were in developing experimental methods for measuring shock temperatures and the density of liquids at high pressure. When applied to iron, the first technique allowed researchers to determine the temperature structure of Earth's core. The second method is so far the only way to measure the density of molten rocks that might form in Earth's mantle at depths greater than a few hundred kilometers. Ahrens's work has led to a basic understanding of how objects—such as meteorites and comets—carrying volatile materials smash into planets. His research has provided insight into the source and origin of water on Earth and into the environmental effects of meteorite collisions such as the one that struck Earth 65 million years ago and likely led to the extinction of the dinosaurs.
Some of Ahrens's most important contributions, according to Asimow, were in developing experimental methods for measuring shock temperatures and the density of liquids at high pressure. When applied to iron, the first technique allowed researchers to determine the temperature structure of Earth's core. The second method is so far the only way to measure the density of molten rocks that might form in Earth's mantle at depths greater than a few hundred kilometers. Ahrens's work has led to a basic understanding of how objects—such as meteorites and comets—carrying volatile materials smash into planets. His research has provided insight into the source and origin of water on Earth and into the environmental effects of meteorite collisions such as the one that struck Earth 65 million years ago and likely led to the extinction of the dinosaurs.
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THOMAS J. AHRENS, ALAN W. HARRIS
Hazards Due to Comets and Asteroidspp.897-928, (2021)
AIP CONFERENCE PROCEEDINGSpp.231-235, (2014)
Elastic Properties and Equations of Statepp.532-541, (2013)
Thomas J Ahrens,Carl B Agee,Orson L Anderson,Don L Anderson,George H Brimhall, John Brodholt, J Michael Brown,Bruce A Buffett, Robert Butler, Clement Chase, Robert Creaser, V M Dehant,
mag(2013)
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High-Pressure Research: Application to Earth and Planetary SciencesGeophysical Monograph Seriespp.353-361, (2013)
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