Cosmogenic Chlorine-36 Measurements in Antarctic Meteorites

Cosmogenic 36Cl isotope measurements for approximately 120 Antarctic meteorite samples. The data includes results from accelerator mass spectrometry performed at Purdue University and was published in the Antarctic Meteorite Newsletter in 2006. The work was supported by the National Science Foundation under Grant OPP-0230419.

Use Cases

• Modeling cosmic-ray exposure histories using 36Cl concentrations and its 0.3 Myr half-life.
• Correlating 36Cl measurements with silicate fraction data for future noble gas or 14C studies.
• Analyzing terrestrial residence times of Antarctic meteorites based on cosmogenic isotope decay.
• Comparing exposure ages across different meteorite samples using accelerator mass spectrometry results.

Strengths

• Data covers approximately 120 Antarctic meteorite samples.
• Includes purified 36Cl fractions isolated from other elements for analysis.

Limitations

• Sample size is limited to Antarctic meteorites, lacking geographic diversity.
• Data is from 2006 and may not reflect more recent findings or methodologies.

Provenance

Source

Antarctic Meteorite Newsletter (vol. 29, 2006), based on work supported by NSF Grant OPP-0230419.

Collection Method

Accelerator mass spectrometry performed at Purdue University on purified metal samples from meteorites.

Time Range

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Freshness

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Geography

Antarctica (meteorite collection sites).