Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Marcos Guiñez"'
Publikováno v:
Latin American Journal of Aquatic Research, Vol 43, Iss 1, Pp 94-106 (2015)
Se determinó la concentración de Cu, Cd, Ni y Zn en sedimentos intermareales y Emérita analoga (Stimpson, 1857), en ocho sectores de la bahía de Mejillones del sur, Chile. Sólo el Zn presentó un cierto grado de contaminación en los sedimentos
Externí odkaz:
https://doaj.org/article/0e24d08a8c134444b930d92dac392c73
Publikováno v:
Latin American Journal of Aquatic Research, Vol 38, Iss 2, Pp 242-253 (2010)
Se analizó la variabilidad estacional y espacial de la Zona de Mínimo Oxígeno (ZMO) y su influencia sobre la composición del material orgánico que se deposita en los sedimentos de la bahía de Mejillones del Sur. Los resultados obtenidos indicar
Externí odkaz:
https://doaj.org/article/c08429e2277d4b70bd88b620f36cc105
Publikováno v:
Environmental Science and Pollution Research. 30:33018-33039
The high-Andean mountain of northern Chile host numerous water systems that is in risk due to increased mining activities. Total and dissolved Cd, Cr, Cu, Hg, Ni, Pb, Se, and Zn in water, and Cd, Cu, Fe, Ni, Pb, Zn, As, Mo, Al, and V in sediments of
Publikováno v:
Progress in Oceanography
Progress in Oceanography, Elsevier, 2021, 193, pp.102520. ⟨10.1016/j.pocean.2021.102520⟩
Progress in Oceanography, 2021, 193, pp.102520. ⟨10.1016/j.pocean.2021.102520⟩
Progress in Oceanography, Elsevier, 2021, 193, pp.102520. ⟨10.1016/j.pocean.2021.102520⟩
Progress in Oceanography, 2021, 193, pp.102520. ⟨10.1016/j.pocean.2021.102520⟩
Mejillones bay presents a permanent and shallow OMZ, whose upper boundary fluctuates between 30 m and 60 m water depth during a normal year. Under this condition, the bottom sediments preserve a geochemical signature of the past oceanic variability.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7aeb12a30d6c9c4f04425fa94ae9e9d1
https://hal.archives-ouvertes.fr/hal-03279867
https://hal.archives-ouvertes.fr/hal-03279867
Autor:
Tatiana Hromic, Ariel D. Arencibia, Jorge Valdés, Alexis Castillo, Roberto A. Uribe, Javier A. Díaz-Ochoa, Marcos Guiñez, Sue-Ellen Vega, Lyta Quezada, Abdelfettah Sifeddine
Publikováno v:
Regional Studies in Marine Science. 44:101725
In coastal upwelling ecosystems, understanding of environmental factors regulating the structure of benthic foraminiferal communities is fundamental to enhance our knowledge of their ecology and to validate their use in palaeoceanographic studies. In
Publikováno v:
Latin American Journal of Aquatic Research, Vol 43, Iss 1, Pp 94-106 (2015)
Latin american journal of aquatic research v.43 n.1 2015
SciELO Chile
CONICYT Chile
instacron:CONICYT
Latin american journal of aquatic research v.43 n.1 2015
SciELO Chile
CONICYT Chile
instacron:CONICYT
800x600 The concentration of Cu, Cd, Ni and Zn in intertidal sediments and Emerita analoga (Stimpson, 1857) in eight sectors of south Mejillones Bay, Chile was determined. Only Zn showed a certain degree of contamination in the sediments of the bay w
Publikováno v:
Ciencias Marinas. 40:45-58
Se midio el contenido de Cu, Pb y Zn para evaluar su enriquecimiento en sedimentos y sus eventuales procesos de biomagnificacion en cadenas troficas bentonicas de siete sectores costeros de la bahia San Jorge. El contenido medio de Cu, Zn y Pb fue 10
Autor:
Régis Guégan, Claude Le Milbeau, Marcos Guiñez, Lydie Le Forestier, Jorge Valdés, Abdelfettah Sifeddine, Mohammed Boussafir, Adoum Mahamat Ahmat
Publikováno v:
Marine Chemistry
Marine Chemistry, Elsevier, 2016, 179, pp.23-33. ⟨10.1016/j.marchem.2016.01.003⟩
Marine Chemistry, 2016, 179, pp.23-33. ⟨10.1016/j.marchem.2016.01.003⟩
Marine Chemistry, Elsevier, 2016, 179, pp.23-33. ⟨10.1016/j.marchem.2016.01.003⟩
Marine Chemistry, 2016, 179, pp.23-33. ⟨10.1016/j.marchem.2016.01.003⟩
International audience; Natural Organic Matter (OM) preservation and sedimentary burial mechanisms are still poorly understood despite their importance in oil source rock characterization and carbon cycle issues. It is now recognized that mineral sor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::673186bc422f309b6096dd78b6ba7194
https://hal-insu.archives-ouvertes.fr/insu-01265816
https://hal-insu.archives-ouvertes.fr/insu-01265816
Publikováno v:
Latin american journal of aquatic research v.38 n.2 2010
SciELO Chile
CONICYT Chile
instacron:CONICYT
SciELO Chile
CONICYT Chile
instacron:CONICYT
Se analizó la variabilidad estacional y espacial de la Zona de Mínimo Oxígeno (ZMO) y su influencia sobre la composición del material orgánico que se deposita en los sedimentos de la bahía de Mejillones del Sur. Los resultados obtenidos indicar
Autor:
Pedro Cortés, Juan Ávila, Lidia Rivera, Alexis Castillo, Marcos Guiñez, Jorge Valdés, Domingo Román
Publikováno v:
Marine pollution bulletin. 100(1)
Between 2008 and 2011, twelve metals from 384 coastal waters samples from San Jorge Bay (Antofagasta, northern Chile) were collected and analyzed. The goal was to evaluate the quality of the bay's water bodies according to the current Chilean Quality