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spectroscopy

Image of the meteorite Allen Hills 83100 illustrating spectral differences
Posted inEditors' Highlights

Pushing the Limits of IR Spectra: Using Nano-FTIR on Meteorites

by David Trang 16 May 202213 May 2022

A new method, nano-FTIR, is used to examine microstructures and processes on grains, displaying its benefit for examining asteroid returned samples through a meteorite.

Artist’s rendering of the near-Earth object Kamo’oalewa
Posted inNews

Asteroid May Be a Chip off the Old Moon

by Stacy Kish 9 December 202121 March 2022

Spectral data suggest that Kamo‘oalewa, a near-Earth asteroid, has a composition similar to lunar rocks.

The LIBS instrument that is part of SuperCam
Posted inNews

Lasers Have the Makings of a 21st-Century Geoscience Tool

by Richard J. Sima 15 October 202120 December 2021

Laser-induced breakdown spectroscopy is a versatile geochemical tool being used in a wide range of applications, from Mars rovers to earthly rock identification.

Posted inEditors' Highlights

Retrieving Tropospheric Ozone from Ground-based Spectroscopy

by Z. Li 5 November 201826 October 2021

A new technique can retrieve the profile of ozone from surface to tropopause by MAX-DOS ground-based measurements.

Posted inEditors' Highlights

What Happens Inside Rocks as They Fail?

by M. Cooke 21 March 20186 October 2021

An innovative technique provides micro-scale resolution on the three-dimensional evolution of damage within crystalline rocks that leads to fault nucleation.

A multicopter fitted with a retroreflector to receive a laser frequency comb signal.
Posted inNews

Airborne Laser Spectroscopy System Can Map Atmospheric Gases

by Kimberly M. S. Cartier 31 July 201726 October 2021

A new versatile spectroscopy system could create ultraprecise maps of Earth’s atmosphere, detect methane emission sources, and scan for chemical weapons.

Researchers look at silicon carbide under heat and pressure to better understand its behavior in a planet mantle
Posted inResearch Spotlights

Lab Tests Probe Carbon Planets’ Inner Dynamics

by Terri Cook 15 June 201730 September 2021

Thermal convection in deep interiors could be more vigorous in carbide planets than in comparably sized silicate planets, according to new high-pressure measurements of silicon carbide.

Gerald Wasserburg in front of the Lunatic I mass spectrometer with the Allende meteorite and a lunar rock on the table beside him
Posted inNews

Gerald J. Wasserburg (1927–2016)

by S. B. Jacobsen, D. A. Papanastassiou and D. J. DePaolo 3 May 201727 January 2022

A leading geochemist who became well known for creating the first high-precision mass spectrometer, called Lunatic I, that measured isotope ratios in lunar samples from the Apollo missions.

Researchers examine New Zealand’s Alpine Fault as it nears the end of its seismic cycle.
Posted inResearch Spotlights

Alteration Along the Alpine Fault Helps Build Seismic Strain

by Terri Cook 7 March 20176 October 2021

Detailed analysis of cores drilled through New Zealand's most dangerous on-land fault indicates that its permeability and strength are altered by mineral precipitation between seismic events.

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“Slip Characteristics of Induced Earthquakes: Insights From the 2015 M w 4.0 Guthrie, Oklahoma Earthquake”
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