Application of in situ-produced cosmogenic 10Be and 26Al to the study of lateritic soil development in tropical forest: Theory and examples from Cameroon and Gabon

R. Braucher; D. L. Bourlès; E. T. Brown; F. Colin; J. P. Muller; J. J. Braun; M. Delaune; A. Edou Minko; C. Lescouet; G. M. Raisbeck; F. Yiou

doi:10.1016/S0009-2541(99)00243-0

Application of in situ-produced cosmogenic ¹⁰Be and ²⁶Al to the study of lateritic soil development in tropical forest: Theory and examples from Cameroon and Gabon

R. Braucher, D. L. Bourlès, E. T. Brown, F. Colin, J. P. Muller, J. J. Braun, M. Delaune, A. Edou Minko, C. Lescouet, G. M. Raisbeck, F. Yiou

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Abstract

Depth profiles of in situ-produced cosmogenic nuclides, including ¹⁰Be (T(1/2) = 1.5 X 10⁶ years) and ²⁶Al (T(1/2)0.73 X 10⁶ years), in the upper few meters of the Earth's crust may be used to study surficial processes, quantifying denudation and burial rates and elucidating mechanisms involved in landform evolution and soil formations. In this paper, we discuss the fundamentals of the method and apply it to two lateritic sequences located in African tropical forests. (C) 2000 Elsevier Science B.V. All rights reserved.

Original language	English (US)
Pages (from-to)	95-111
Number of pages	17
Journal	Chemical Geology
Volume	170
Issue number	1-4
DOIs	https://doi.org/10.1016/S0009-2541(99)00243-0
State	Published - Oct 24 2000

Bibliographical note

Funding Information:
We thank J. Lestringuez and D. Deboffle for their continuing expertise in AMS measurements. Fieldwork was facilitated by the logistic support of ORSTOM Centers (Yaoundé and Brazzaville). 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 IN2P3.

Keywords

Cosmogenic nuclides
Lateritic soil development
Tropical forest

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Braucher, R., Bourlès, D. L., Brown, E. T., Colin, F., Muller, J. P., Braun, J. J., Delaune, M., Edou Minko, A., Lescouet, C., Raisbeck, G. M., & Yiou, F. (2000). Application of in situ-produced cosmogenic ¹⁰Be and ²⁶Al to the study of lateritic soil development in tropical forest: Theory and examples from Cameroon and Gabon. Chemical Geology, 170(1-4), 95-111. https://doi.org/10.1016/S0009-2541(99)00243-0

Braucher, R, Bourlès, DL, Brown, ET, Colin, F, Muller, JP, Braun, JJ, Delaune, M, Edou Minko, A, Lescouet, C, Raisbeck, GM & Yiou, F 2000, 'Application of in situ-produced cosmogenic ¹⁰Be and ²⁶Al to the study of lateritic soil development in tropical forest: Theory and examples from Cameroon and Gabon', Chemical Geology, vol. 170, no. 1-4, pp. 95-111. https://doi.org/10.1016/S0009-2541(99)00243-0

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