CHEMICAL PROFILES IN LAKE SEDIMENTS IN LAGUNA CHICA DE SAN PEDRO (BIO-BIO REGION, CHILE)

Metal profiles in lake sediments could provide historical environmental information on impacts caused by human activities and natural events, with view to the formulation of effective environmental policies. This paper presents data on sedimentary metal profiles in Laguna Chica de San Pedro (LCSP) l...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	CHIRINOS,LUIS R, URRUTIA,ROBERTO, FAGEL,NATHALIE, BERTRAND,SEBASTIEN, GAMBOA,NADIA, ARANEDA,ALBERTO, ZAROR,CLAUDIO
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2005
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000400010
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-97072005000400010
record_format	dspace
spelling	oai:scielo:S0717-970720050004000102006-04-19CHEMICAL PROFILES IN LAKE SEDIMENTS IN LAGUNA CHICA DE SAN PEDRO (BIO-BIO REGION, CHILE)CHIRINOS,LUIS RURRUTIA,ROBERTOFAGEL,NATHALIEBERTRAND,SEBASTIENGAMBOA,NADIAARANEDA,ALBERTOZAROR,CLAUDIOMetal profiles in lake sediments could provide historical environmental information on impacts caused by human activities and natural events, with view to the formulation of effective environmental policies. This paper presents data on sedimentary metal profiles in Laguna Chica de San Pedro (LCSP) lake, located in the Bio Bio Region in Southern Chile, where important industrial activities are concentrated. Sediment properties (organic and inorganic matter, grain size, particle distribution, biogenic silica, Mn/Fe ratio), major (Al, Ca, K, Mg, Ti, Na), trace (V, As, Co, Cu, Zn, Ni, Cr, Pb, Sr), and mobile (Fe, Mn, P, S) elements, as well as mineral profiles (plagioclase, quartz, clays, amorphous material) are presented, up to 65 cm depth. In general, relatively constant concentration profiles are observed in the sedimentary core mid section, for most elements. Most changes in composition are seen at the top (recent industrial period) and bottom (before human intervention) sections. Variable redox conditions, generated by biological activity at the sediment-water interface are likely to account for composition profiles at the sediment-water interface. On the other hand, physical processes seem to be mostly responsible for concentration changes in Pre-industrial sediments. Mineral content profiles, such as plagioclase, clay and quartz, as well as total clay content remain fairly constant in most of the core, showing significant changes at its bottom part. High excess V, As, and S values, especially at the upper sediment, arise as a consequence of redox conditions in the lake. Certainly, such metal enrichment is mainly associated with natural sedimentary matter supply from the watershedinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.50 n.4 20052005-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000400010en10.4067/S0717-97072005000400010
institution	Scielo Chile
collection	Scielo Chile
language	English
description	Metal profiles in lake sediments could provide historical environmental information on impacts caused by human activities and natural events, with view to the formulation of effective environmental policies. This paper presents data on sedimentary metal profiles in Laguna Chica de San Pedro (LCSP) lake, located in the Bio Bio Region in Southern Chile, where important industrial activities are concentrated. Sediment properties (organic and inorganic matter, grain size, particle distribution, biogenic silica, Mn/Fe ratio), major (Al, Ca, K, Mg, Ti, Na), trace (V, As, Co, Cu, Zn, Ni, Cr, Pb, Sr), and mobile (Fe, Mn, P, S) elements, as well as mineral profiles (plagioclase, quartz, clays, amorphous material) are presented, up to 65 cm depth. In general, relatively constant concentration profiles are observed in the sedimentary core mid section, for most elements. Most changes in composition are seen at the top (recent industrial period) and bottom (before human intervention) sections. Variable redox conditions, generated by biological activity at the sediment-water interface are likely to account for composition profiles at the sediment-water interface. On the other hand, physical processes seem to be mostly responsible for concentration changes in Pre-industrial sediments. Mineral content profiles, such as plagioclase, clay and quartz, as well as total clay content remain fairly constant in most of the core, showing significant changes at its bottom part. High excess V, As, and S values, especially at the upper sediment, arise as a consequence of redox conditions in the lake. Certainly, such metal enrichment is mainly associated with natural sedimentary matter supply from the watershed
author	CHIRINOS,LUIS R URRUTIA,ROBERTO FAGEL,NATHALIE BERTRAND,SEBASTIEN GAMBOA,NADIA ARANEDA,ALBERTO ZAROR,CLAUDIO
spellingShingle	CHIRINOS,LUIS R URRUTIA,ROBERTO FAGEL,NATHALIE BERTRAND,SEBASTIEN GAMBOA,NADIA ARANEDA,ALBERTO ZAROR,CLAUDIO CHEMICAL PROFILES IN LAKE SEDIMENTS IN LAGUNA CHICA DE SAN PEDRO (BIO-BIO REGION, CHILE)
author_facet	CHIRINOS,LUIS R URRUTIA,ROBERTO FAGEL,NATHALIE BERTRAND,SEBASTIEN GAMBOA,NADIA ARANEDA,ALBERTO ZAROR,CLAUDIO
author_sort	CHIRINOS,LUIS R
title	CHEMICAL PROFILES IN LAKE SEDIMENTS IN LAGUNA CHICA DE SAN PEDRO (BIO-BIO REGION, CHILE)
title_short	CHEMICAL PROFILES IN LAKE SEDIMENTS IN LAGUNA CHICA DE SAN PEDRO (BIO-BIO REGION, CHILE)
title_full	CHEMICAL PROFILES IN LAKE SEDIMENTS IN LAGUNA CHICA DE SAN PEDRO (BIO-BIO REGION, CHILE)
title_fullStr	CHEMICAL PROFILES IN LAKE SEDIMENTS IN LAGUNA CHICA DE SAN PEDRO (BIO-BIO REGION, CHILE)
title_full_unstemmed	CHEMICAL PROFILES IN LAKE SEDIMENTS IN LAGUNA CHICA DE SAN PEDRO (BIO-BIO REGION, CHILE)
title_sort	chemical profiles in lake sediments in laguna chica de san pedro (bio-bio region, chile)
publisher	Sociedad Chilena de Química
publishDate	2005
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000400010
work_keys_str_mv	AT chirinosluisr chemicalprofilesinlakesedimentsinlagunachicadesanpedrobiobioregionchile AT urrutiaroberto chemicalprofilesinlakesedimentsinlagunachicadesanpedrobiobioregionchile AT fagelnathalie chemicalprofilesinlakesedimentsinlagunachicadesanpedrobiobioregionchile AT bertrandsebastien chemicalprofilesinlakesedimentsinlagunachicadesanpedrobiobioregionchile AT gamboanadia chemicalprofilesinlakesedimentsinlagunachicadesanpedrobiobioregionchile AT aranedaalberto chemicalprofilesinlakesedimentsinlagunachicadesanpedrobiobioregionchile AT zarorclaudio chemicalprofilesinlakesedimentsinlagunachicadesanpedrobiobioregionchile
_version_	1718445354987290624

CHEMICAL PROFILES IN LAKE SEDIMENTS IN LAGUNA CHICA DE SAN PEDRO (BIO-BIO REGION, CHILE)

Ejemplares similares