In situ produced 10Be measurements at great depths: Implications for production rates by fast muons

R. Braucher; E. T. Brown; D. L. Bourlès; F. Colin

doi:10.1016/S0012-821X(03)00205-X

In situ produced ¹⁰Be measurements at great depths: Implications for production rates by fast muons

R. Braucher, E. T. Brown, D. L. Bourlès, F. Colin

Research output: Contribution to journal › Article › peer-review

159 Scopus citations

Abstract

In situ cosmogenic ¹⁰Be values have been used to investigate a Brazilian quartz vein from the surface to a depth of 15 m. At depths greater than 1000 g/cm², deep enough for neutron-induced reactions to be insignificant, there is only a slight decrease in ¹⁰Be concentration with increasing depth. Our results are consistent with deep production of ¹⁰Be by a mechanism, presumably induced by fast muons, with an attenuation length of 5300±950 g/cm² and a contribution of 0.65±0.25% to the total surface production. Results are compared with values from the literature and implications of this re-evaluation are discussed.

Original language	English (US)
Pages (from-to)	251-258
Number of pages	8
Journal	Earth and Planetary Science Letters
Volume	211
Issue number	3-4
DOIs	https://doi.org/10.1016/S0012-821X(03)00205-X
State	Published - Jun 30 2003

Bibliographical note

Funding Information:
We thank Bernard Dupré for U/Th analyses. Fieldwork was facilitated by the logistic support of the Sao Paolo ORSTOM Center and the Federal University of Mato Groso at Cuiaba. This work was supported by INSU-CNRS through the DBT Program Thème 1: ‘Fleuves et érosion’ by INSU-CNRS and ORSTOM through the PEGI Program. Tandétron operation is supported by the CNRS, CEA and IN 2 P 3 . [BOYLE]

Keywords

Beryllium
Cosmogenic
Muons
Production rate

Publisher link

10.1016/S0012-821X(03)00205-X

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@article{972a63942df047b2a72b4d08924aeb66,

title = "In situ produced 10Be measurements at great depths: Implications for production rates by fast muons",

abstract = "In situ cosmogenic 10Be values have been used to investigate a Brazilian quartz vein from the surface to a depth of 15 m. At depths greater than 1000 g/cm2, deep enough for neutron-induced reactions to be insignificant, there is only a slight decrease in 10Be concentration with increasing depth. Our results are consistent with deep production of 10Be by a mechanism, presumably induced by fast muons, with an attenuation length of 5300±950 g/cm2 and a contribution of 0.65±0.25% to the total surface production. Results are compared with values from the literature and implications of this re-evaluation are discussed.",

keywords = "Beryllium, Cosmogenic, Muons, Production rate",

author = "R. Braucher and Brown, {E. T.} and Bourl{\`e}s, {D. L.} and F. Colin",

note = "Funding Information: We thank Bernard Dupr{\'e} for U/Th analyses. Fieldwork was facilitated by the logistic support of the Sao Paolo ORSTOM Center and the Federal University of Mato Groso at Cuiaba. This work was supported by INSU-CNRS through the DBT Program Th{\`e}me 1: {\textquoteleft}Fleuves et {\'e}rosion{\textquoteright} by INSU-CNRS and ORSTOM through the PEGI Program. Tand{\'e}tron operation is supported by the CNRS, CEA and IN 2 P 3 . [BOYLE] ",

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language = "English (US)",

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TY - JOUR

T1 - In situ produced 10Be measurements at great depths

T2 - Implications for production rates by fast muons

AU - Braucher, R.

AU - Brown, E. T.

AU - Bourlès, D. L.

AU - Colin, F.

N1 - Funding Information: We thank Bernard Dupré for U/Th analyses. Fieldwork was facilitated by the logistic support of the Sao Paolo ORSTOM Center and the Federal University of Mato Groso at Cuiaba. This work was supported by INSU-CNRS through the DBT Program Thème 1: ‘Fleuves et érosion’ by INSU-CNRS and ORSTOM through the PEGI Program. Tandétron operation is supported by the CNRS, CEA and IN 2 P 3 . [BOYLE]

PY - 2003/6/30

Y1 - 2003/6/30

N2 - In situ cosmogenic 10Be values have been used to investigate a Brazilian quartz vein from the surface to a depth of 15 m. At depths greater than 1000 g/cm2, deep enough for neutron-induced reactions to be insignificant, there is only a slight decrease in 10Be concentration with increasing depth. Our results are consistent with deep production of 10Be by a mechanism, presumably induced by fast muons, with an attenuation length of 5300±950 g/cm2 and a contribution of 0.65±0.25% to the total surface production. Results are compared with values from the literature and implications of this re-evaluation are discussed.

AB - In situ cosmogenic 10Be values have been used to investigate a Brazilian quartz vein from the surface to a depth of 15 m. At depths greater than 1000 g/cm2, deep enough for neutron-induced reactions to be insignificant, there is only a slight decrease in 10Be concentration with increasing depth. Our results are consistent with deep production of 10Be by a mechanism, presumably induced by fast muons, with an attenuation length of 5300±950 g/cm2 and a contribution of 0.65±0.25% to the total surface production. Results are compared with values from the literature and implications of this re-evaluation are discussed.

KW - Beryllium

KW - Cosmogenic

KW - Muons

KW - Production rate

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