3He is among the most commonly measured terrestrial cosmogenic nuclides, but an incomplete understanding of the
3He production rate has limited robust interpretation of cosmogenic
3He concentrations. We use new measurements of cosmogenic
3He in olivine from a well-dated lava flow at Tabernacle Hill, Utah, USA, to calibrate the local
3He production rate. The new
3He measurements (
n = 8) show excellent internal consistency and yield a sea level high latitude (SLHL) production rate of 123 ± 4 at g
?1 yr
?1 following the Lal (1991)/Stone (2000) scaling model [Lal, D., 1991. Cosmic ray labeling of erosion surfaces:
in situ nuclide production rates and erosion models. Earth and Planetary Science Letters, 104, 424–439.; Stone, J.O., 2000. Air pressure and cosmogenic isotope production. Journal of Geophysical Research, 105, 23753–23759.]. We incorporate the new measurements from Tabernacle Hill in a compilation of all published production rate determinations, characterizing the mean global SLHL production rates (e.g. 120 ± 9.4 at g
?1 yr
?1 with Lal (1991)/Stone (2000)). The internal consistency of the global
3He production rate dataset is as good as the other commonly used cosmogenic nuclides. Additionally,
3He production rates in olivine and pyroxene agree within experimental error. The
3He production rates are implemented in an age and erosion rate calculator, forming a new module of the CRONUS-Earth web-based calculator, a simple platform for cosmogenic nuclide data interpretation [Balco, G., Stone, J., Lifton, N.A., and Dunai, T.J., 2008. A complete and easily accessible means of calculating surface exposure ages or erosion rates from
10Be and
26Al measurements. Quaternary Geochronology, 3, 174–195.]. The
3He calculator is available online at http://www.cronuscalculators.nmt.edu/.
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