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GEOREF RECORD

Biogenic silica storage in soils

Jean-Dominique Meunier, Fabrice Colin and Charles Alarcon
Biogenic silica storage in soils
Geology (Boulder) (September 1999) 27 (9): 835-838

Abstract

The role of plants in soil development has became of crucial interest in quantifying global weathering processes. On the volcanic Reunion Island (Indian Ocean), a 15-cm-thick phytolith-rich horizon (biogenic opal-A) developed at the expense of trachytic ashes between 3820+ or -85 and 335 + or - 90 yr B.P. Then, 97-138 t/km (super 2) /yr of SiO (sub 2) were biogeochemically recycled from the weathering of parent rocks through a past forest of bamboos (Nastus borbonicus). This rate is in the same range as the present chemical weathering rates of silica in the area, considered to be among the highest in the world. These results demonstrate that the storage of biogenic silica in soils may be significant and may retard the output of silica to rivers and ocean.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 27
Serial Issue: 9
Title: Biogenic silica storage in soils
Affiliation: Centre Europeen de Recherche et d'Enseignement de Geosciences de l'Environnement, Aix en Provence, France
Pages: 835-838
Published: 199909
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 24
Accession Number: 1999-063442
Categories: Soils
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables, sketch map
S21°25'00" - S20°49'60", E55°00'00" - E56°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 199921
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