Publication Date:
2019-07-13
Description:
Absolute dating of planetary samples is an essential tool to establish the chronology of geological events, including crystallization history, magmatic evolution, and alteration. We are addressing this challenge by developing the Potassium (K) -- Argon Laser Experiment (KArLE), building on previous work to develop a K-Ar in situ instrument. KArLE ablates a rock sample, determines the K in the plasma state using laser-induced breakdown spectroscopy (LIBS), measures the liberated Ar using quadrupole mass spectrometry (QMS), and relates the two by the volume of the ablated pit using laser confocal microscopy (LCM). Our goal is for the KArLE instrument to be capable of determining the age of several kinds of planetary samples to address a wide range of geochronolgy problems in planetary science.
Keywords:
Instrumentation and Photography
Type:
M13-2401
,
44th Lunar and Planetary Science Conference (LPSC)/Lunar and Planetary Institute (LPI) and Universities Space Research Association (USRA); Mar 18, 2013 - Mar 22, 2013; The Woodlands, TX; United States
Format:
application/pdf
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