Scientific article

Aluminum in the opal silica reticule of phytoliths: a new tool in palaeoecological studies

Published inAmerican journal of botany, vol. 89, no. 2, p. 346-351
Publication date2002

X-ray microanalysis was employed to screen biogenic plant silica extracted from the aboveground tissues of 20 species (Gramineae, Cyperaceae, Ericaceae, and Coniferae) occurring in subalpine and alpine grasslands, heaths, and woodlands on siliceous bedrock in the Valaisan Swiss Alps. Among the taxa investigated, only woody species produced a high proportion of phytoliths containing aluminum in the form of aluminosilicates. This difference between the chemical composition of wood and that of herbaceous phytoliths has important implications for the sourcing of phytoliths. As applications for palaeoenvironmental studies can be expected to be far-reaching, the potential of this microanalytical technique is discussed.

  • Alps
  • Aluminium
  • Coniferae
  • Cyperaceae
  • Ericaceae
  • Gramineae
  • Opal
  • X-ray microanalysis
Citation (ISO format)
CARNELLI, Adriana et al. Aluminum in the opal silica reticule of phytoliths: a new tool in palaeoecological studies. In: American journal of botany, 2002, vol. 89, n° 2, p. 346–351. doi: 10.3732/ajb.89.2.346
Main files (1)
Article (Published version)
ISSN of the journal0002-9122

Technical informations

Creation01/12/2016 11:46:00 AM
First validation01/12/2016 11:46:00 AM
Update time03/15/2023 12:03:28 AM
Status update03/15/2023 12:03:28 AM
Last indexation01/16/2024 8:00:54 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack