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(Article of periodic en Anglais - 2012)

Document title

Pedogenic, lithogenic – or anthropogenic origin of Cr, Ni and V in soils near a petrochemical facility in Southeast Mexico

Authors(s) and Affiliation(s)

HERNÁNDEZ-QUIROZ M. (1) ; HERRE A. (2) ; CRAM S. (3) ; PONCE DE LEÓN C. (1) ; SIEBE C. (2) ;
(1) Fac. de Ciencias, Unidad de Análisis Ambiental, Univ. Nacional Autónoma, Mexico, MEXIQUE
(2) Lab. de Edafología Ambiental, Inst. di Geología, Univ. Nacional Autónoma, Mexico, MEXIQUE
(3) Departamento de Geografía Física, Instituto de Geografía, Univ. Nacional Autónoma, México, MEXIQUE

Abstract

Large Cr, V and Ni contents were found in soils near Cd. Pemex in Tabasco, Mexico. Their origin was hypothesized to be either anthropogenic, derived from emissions of a petrochemical facility, or lithogenic, from the volcanic ash deposited by the “El Chichon” volcano, or accumulated residually by pedogenesis. The AA. proved these possible origins by analyzing composite samples taken from the soil surface at different distances from the facility as well as samples from 2 soil profiles located close and far away from the facility within the same land unit. The results highlight that the studied elements are of lithogenic and pedogenic origin; they were enriched dominantly through residual accumulation by lateritization, probably of mesozoic ultramafic rocks from the margins of the Caribbean plate, and later fragmented and transported by water to the present location; only Ni was also partly added by the recent volcanic activity

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2012, vol. 93 [pp. 49-57]

Bibliographic references : 42 ref.

Collation : 4 fig., 6 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2012.01.005

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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