Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Academia Brasileira de Ciências
2012
|
| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=32724544032 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Table of Contents:
- Biogeochemistry of REE elements and tetrad effect in the soil-plant system: a study on volcanic rock covers in southernmost Brazil Maria do Carmo Lima e Cunha Lauro V.S. Nardi Ingke F. Muller Multidisciplinaria (Ciencias Naturales y Exactas) REE tetrad effect southernmost Brazil Schinus lentiscifolius This paper deals with the distribution of REE in rock, soil and plant in an area of monzonitic rocks from southernmost Brazil. The REE patterns in Schinus lensticifolius show a negative-Ce anomaly and a prominent tetrad effect, characterized as W-type that are not present in rock and soil samples. The REE patterns in the soils and rocks sampled are very similar and there is no fractionation of REE during the processes of soil formation. The W-type patterns are interpreted as indicating that REE were absorved by S. lentiscifolius as simple ions rather than as complex ions, or, alternatively, that the transport of REE in the plant metabolic processes was as free ions. The recognition of tetrads, either, M- or W-type patterns, is an additional tool for understanding the biogeochemistry of REE and can contribute to the study of monitoring processes of contaminated environment or to mineral prospecting. 2012 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32724544032 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.4 Vol.84