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Production of ²¹Ne in depth-profiled olivine from a 54 Ma basalt sequence, Eastern Highlands (37° S), Australia

Matchan, Erin L.; Honda, Masahiko; Barrows, Timothy T.; Phillips, David; Chivas, Allan R.; Fifield, L. Keith; Fabel, Derek


In this study we investigate the cosmogenic neon component in olivine samples from a vertical profile in order to quantify muogenic 21Ne production in this mineral. Samples were collected from an 11 m thick Eocene basalt profile in the Eastern Highlands of southeastern Australia. An eruption age of 54.15 ± 0.36 Ma (2σ) was determined from ⁴⁰Ar/³⁹Ar step-heating experiments (n = 6) on three whole-rock samples. A ³⁶Cl profile on the section indicated an apparent steady state erosion rate of 4.7 ±...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
Source: Geochimica et Cosmochimica Acta
DOI: 10.1016/j.gca.2017.09.035
Access Rights: Open Access


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