J. Adelson and G. , Reconstructing the rise of recent coastal anoxia; molybdenum in Chesapeake Bay sediments, Geochimica et Cosmochimica Acta, vol.65, issue.2, pp.237-252, 2001.
DOI : 10.1016/S0016-7037(00)00539-1

N. Algeo, Environmental analysis of paleoceanographic systems based on molybdenum???uranium covariation, Chemical Geology, vol.268, issue.3-4, pp.211-225, 2009.
DOI : 10.1016/j.chemgeo.2009.09.001

R. Berner and R. , Raiswell Burial of organic carbon and pyrite in sediment over Phanerozoic time: a new theory, Geochim. Cosmochim. Acta, pp.47-855, 1983.

P. Betrand and E. , Past sedimentary organic matter accumulation and degradation controlled by productivity, Nature, vol.364, issue.6440, pp.786-788, 1993.
DOI : 10.1038/364786a0

D. Biller and G. , Sources and distributions of Mn, Fe, Co, Ni, Cu, Zn, and Cd relative to macronutrients along the central California coast during the spring and summer upwelling season, Marine Chemistry, vol.155, pp.50-70, 2013.
DOI : 10.1016/j.marchem.2013.06.003

H. J. Bóning, M. E. Brumsack, B. Bóttcher, C. Schnetger, J. Kriete et al., Borchers Geochemistry of Peruvian nearsurface sediments, Geochim. Cosmochim. Acta, issue.21, pp.68-4429, 2004.

. Ph, S. Böning, M. Cuypers, B. Grunwald, and H. Schnetger, Brumsack Geochemical characteristics of Chilean upwelling sediments at 36° S Mar, Geol, vol.220, pp.1-21, 2005.

. Ph, H. Böning, B. Brumsack, and M. Schnetger, Grunwald Trace element signatures of Chilean upwelling sediments at 36° S Mar, Geol, vol.259, pp.112-121, 2009.

L. Boruvka, O. Vecek, and S. , Principal component analysis as a tool to indicate the origin of potentially toxic elements in soils, Geoderma, vol.128, issue.3-4, pp.289-300, 2005.
DOI : 10.1016/j.geoderma.2005.04.010

B. Bostick, S. Fendorf, and M. , Fendorf Disulfide disproportionation and CdS formation upon cadmium sorption on FeS

E. Brown, L. Callonec, and C. , Geochemical cycling of redox-sensitive metals in sediments from lake malawi: a diagnostic paleotracer for episodic changes in mixing depth, Geochimica et Cosmochimica Acta, vol.64, issue.20, pp.3515-3523, 2000.
DOI : 10.1016/S0016-7037(00)00460-9

T. Caniupán, S. Villaseñor, C. B. Pantoja, G. Lange, P. Vargas et al., Salamanca Sedimentos laminados de la Bahía Mejillones como registro de cambios temporales en la productividad fitoplanctónica de los últimos 200 años Rev, Chil. Hist. Nat, pp.82-83, 2009.

M. Cantillanez, M. Avendaño, G. Thouzeau, and M. , Le Pennec Reproductive cycle of Argopectenpurpuratus (Bivalvia: Pectinidae) in La Rinconada marine reserve): response to environmental effects of El Niño and La Niña Aquaculture, pp.246-181, 2005.

K. Chen, J. Jiao, J. Huang, and R. , Multivariate statistical evaluation of trace elements in groundwater in a coastal area in Shenzhen, China, Environmental Pollution, vol.147, issue.3, pp.771-780, 2007.
DOI : 10.1016/j.envpol.2006.09.002

J. Crusius, S. Calvert, T. Pedersen, and D. , Rhenium and molybdenum enrichments in sediments as indicators of oxic, suboxic and sulfidic conditions of deposition, Earth and Planetary Science Letters, vol.145, issue.1-4, pp.65-79, 1996.
DOI : 10.1016/S0012-821X(96)00204-X

W. Dean, J. Gardner, and D. , Piper Inorganic geochemical indicators of glacial?interglacial changes in productivity and anoxia on the California continental margin Geochim, Cosmochim. Acta, issue.21, pp.61-4507, 1997.

R. Diaz, Overview of Hypoxia around the World, Journal of Environment Quality, vol.30, issue.2, pp.275-281, 2001.
DOI : 10.2134/jeq2001.302275x

P. Escribano, Hidalgo Spatial distribution of copepods in the north of the Humboldt Current region off Chile during coastal upwelling J, Mar. Biol, vol.80, pp.1-8, 2000.

R. Escribano, S. Rosales, and J. , Understanding upwelling circulation off Antofagasta (northern Chile): A three-dimensional numerical-modeling approach, Continental Shelf Research, vol.24, issue.1, pp.37-53, 2004.
DOI : 10.1016/j.csr.2003.09.005

V. Gallardo, Large benthic microbial communities in sulphide biota under Peru???Chile Subsurface Countercurrent, Nature, vol.57, issue.5618, pp.331-333, 1977.
DOI : 10.1038/268331a0

J. Helly and L. , Levin Global distribution of naturally occurring marine hypoxia on continental margins Deep Sea Res. I, pp.1159-1168, 2004.

R. Helz, C. V. Miller, J. M. Charnock, J. F. Mosselmans, R. A. Pattrick et al., Vaughan Mechanism of molybdenum removal from the sea and its concentration in black shales: EXAFS evidence, Geochim. Cosmochim. Acta, issue.19, pp.60-3631, 1996.

R. Helz, T. P. Vorlicek, and M. D. , Molybdenum Scavenging by Iron Monosulfide, Environmental Science & Technology, vol.38, issue.16, pp.4263-4268, 2004.
DOI : 10.1021/es034969+

M. Huerta-diaz and M. , Pyritization of trace metals in anoxic marine sediments, Geochimica et Cosmochimica Acta, vol.56, issue.7, pp.2681-2702, 1992.
DOI : 10.1016/0016-7037(92)90353-K

M. Kuppusamy and V. , Factor analysis of water quality characteristics including trace metal speciation in the coastal environmental system of Chennai Ennore, Environment International, vol.32, issue.2, pp.174-179, 2006.
DOI : 10.1016/j.envint.2005.08.008

L. Levin, Oxygen minimum zone benthos: adaptation and community response to hypoxia Oceanogr, Mar. Biol. Annu. Rev, vol.41, pp.1-45, 2003.

G. Marín, Olivares Estacionalidad de la productividad primaria en bahía Mejillones del Sur (Chile): una aproximación proceso-funcional Rev, Chil. Hist. Nat, vol.72, pp.629-641, 1999.

V. Marín, L. Delgado, and R. , Escribano Upwelling shadows at Mejillones Bay (northern Chilean coast): a remote sensing in situ analysis Investig, Mar, vol.31, issue.2, pp.47-55, 2003.

S. Morford, The geochemistry of redox sensitive trace metals in sediments, Geochimica et Cosmochimica Acta, vol.63, issue.11-12, pp.1735-1750, 1999.
DOI : 10.1016/S0016-7037(99)00126-X

J. Morford, A. Russell, and S. , Trace metal evidence for changes in the redox environment associated with the transition from terrigenous clay to diatomaceous sediment, Saanich Inlet, BC, Marine Geology, vol.174, issue.1-4, pp.355-369, 2001.
DOI : 10.1016/S0025-3227(00)00160-2

M. Murray, Leinen Scavenged excess aluminium and its relationship to bulk titanium in biogenic sediment from the Central equatorial Pacific Ocean Geochim, Cosmochim. Acta, pp.60-3869, 1996.

T. Nameroff, L. Balistrieri, and W. , Suboxic trace metal geochemistry in the Eastern Tropical North Pacific, Geochimica et Cosmochimica Acta, vol.66, issue.7, pp.1139-1158, 2002.
DOI : 10.1016/S0016-7037(01)00843-2

E. Pailler, F. Bard, Y. Rostek, R. Zheng, and A. Mortlock, Burial of redox-sensitive metals and organic matter in the equatorial Indian Ocean linked to precession, Geochimica et Cosmochimica Acta, vol.66, issue.5, pp.849-865, 2002.
DOI : 10.1016/S0016-7037(01)00817-1

G. Pizarro, J. Iriarte, and V. , Montecinos Mesoscale primary production and bio-optical variability off Antofagasta (23°?24° S) during the transition to El Niño, 1997.

R. Quiroga, M. Quiñones, J. Palma, V. Sellanes, D. Gallardo et al., Rowe Biomasa size-spectra of macrobenthic communities in the oxygen minimum zone off Chile Estuar, Coast. Shelf Sci, pp.65-217, 2005.

M. Reid and K. , Use of principal components analysis (PCA) on estuarine sediment datasets: The effect of data pre-treatment, Environmental Pollution, vol.157, issue.8-9, pp.2275-2281, 2009.
DOI : 10.1016/j.envpol.2009.03.033

A. Russell and J. , The behavior of redox-sensitive metals across a laminated???massive???laminated transition in Saanich Inlet, British Columbia, Marine Geology, vol.174, issue.1-4, pp.341-354, 2001.
DOI : 10.1016/S0025-3227(00)00159-6

A. Sainz and F. , Ruiz Influence of the very polluted inputs of the Tinto?Odiel system on the adjacent littoral sediments of southwestern Spain: a statistical approach Chemosphere, pp.62-1612, 2006.

N. Tribovillard, . Th, T. Algeo, and A. Lyons, Trace metals as paleoredox and paleoproductivity proxies: An update, Chemical Geology, vol.232, issue.1-2, pp.12-32, 2006.
DOI : 10.1016/j.chemgeo.2006.02.012

URL : https://hal.archives-ouvertes.fr/hal-00351351

T. Tribovillard, F. Algeo, and A. Baudin, Riboulleau Analysis of marine environmental conditions based on molybdenum?uranium covariation ? applications to Mesozoic paleoceanography, Chem. Geol, 2011.

J. Valdés, L. Ortlieb, and A. , Sifeddine Variaciones del sistema de surgencia de Punta Angamos (23° S) y la Zona de Mínimo Oxígeno durante el pasado reciente. Una aproximación desde el registro sedimentario de la bahía Mejillones del Sur Rev, Chil. Hist. Nat, pp.76-347, 2003.

J. Valdés, A. Siffedine, E. Lallier-verges, and L. , Ortlieb Petrographic and geochemical study of organic matter in surficial laminated sediment from an upwelling system

J. Valdés, G. Vargas, A. Sifeddine, L. Ortlieb, and M. , Guiñez Distribution and enrichment evaluation of heavy metals in Mejillones Bay (23° S), northern Chile: geochemical and statistical approach Mar, Pollut. Bull, pp.50-1558, 2005.

J. Valdés, D. Román, G. Alvarez, L. Ortlieb, and M. , Guiñez Metals content in surface waters of an upwelling system of the northern Humboldt Current

L. Vargas, J. Ortlieb, J. Pichon, and M. Bertaux, Pujos Sedimentary facies and high resolution primary production inferences from laminated diatomacous sediments off northern Chile, pp.79-99, 2004.

S. Vargas, J. Pantoja, C. Rutlant, and L. Lange, Ortlieb Enhancement of coastal upwelling and interdecadal ENSO-like variability in the Peru?Chile Current since late 19th century, Geophys. Res. Lett, pp.34-13607, 2007.

J. Vega, J. Vásquez, and A. , Buschmann Population biology of the subtidal kelps Macrocystisintegrifolia and Lessoniatrabeculata (Laminariales, Phaeophyceae) in an upwelling ecosystem of northern Chile: interannual variability and El Niño, 1997.

R. Webster, Statistics to support soil research and their presentation, European Journal of Soil Science, vol.38, issue.2, pp.331-340, 2001.
DOI : 10.1046/j.1365-2389.2001.00383.x

K. Yarincik, R. Murria, T. Linz, L. Peterson, and G. , Oxygenation history of bottom waters in the Cariaco Basin, Venezuela, over the past 578,000 years: Results from redox-sensitive metals (Mo, V, Mn, and Fe), Paleoceanography, vol.40, issue.6, pp.593-604, 2000.
DOI : 10.1029/1999PA000401

K. Yarincik, R. Murria, T. Linz, and L. , Peterson Climatically controlled aeolian and hemipelagic deposition in the Cariaco Basin, Venezuela over the past 578,000 years: results from, pp.210-228, 2000.

L. Yawei, S. Lina, and J. Jianbo, Chemometrics methods for the investigation of methylmercury and total mercury contamination in mollusks samples collected from coastal sites along the Chinese Bohai Sea, Environmental Pollution, vol.135, issue.3, pp.457-467, 2005.
DOI : 10.1016/j.envpol.2004.11.025

C. Zhang, Using multivariate analyses and GIS to identify pollutants and their spatial patterns in urban soils in Galway, Ireland, Environmental Pollution, vol.142, issue.3, pp.501-511, 2006.
DOI : 10.1016/j.envpol.2005.10.028