AMS, 36Cl, Bennu stones of interest and aggregate sample
Author
Contributors
Description
Accelerator mass spectrometry analysis of 36Cl concentrations in small (~1 mg) splits from three stones of interest (SOI), OREX-800023-0 (mottled), OREX-800055-0 (angular) and OREX-800088-0 (hummocky), as well as a 14.4 mg split of the homogenized powder of aggregate sample, OREX-800117-0. The samples were dissolved in HF/HNO3 and a small aliquot of the dissolved sample was taken for chemical analysis by ICP-OES. The 36Cl concentrations in the SOIs range from 82 to 132 dpm/kg, compared to a 36Cl concentration of 101 dpm/kg in the aggregate sample. The high 36Cl concentrations indicate that 36Cl is dominated by neutron-capture production on 35Cl in the top 1-2 m of Bennu's surface.
Mission
Samples
Session
How To Cite
Welten, K., 2025. AMS, 36Cl, Bennu stones of interest and aggregate sample, Version 1.0. Astromaterials Data Archive. https://doi.org/10.60707/znv7-0715 Accessed 2026-10-03.
Analytical Method
Files
Select a file for preview.
Funding Sources
This material is supported by NASA under contract NNM10AA11C issued through the New Frontiers program. This study is supported by NASA grant 80NSSC22K1693 through the OREX-PSP.
