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Antelo, Juan
About Me

Arne Stenseth
About Me


I am a founder and manager of Gruvedrift Enterprises, LLC. We work with clients in the mining industry regarding project management, acquistion and evaluation of geological data, project acquisition, staking, surveying, and geochemical sampling, and product beneficiation.

We also evaluate past, ongoing, and future operations, help clients meet training, bonding, and permitting requirements with local, State, and federal entities, including the US Bureau of Land Management, the Arizona Department of Environmental Quality, the Arizona Department of Water Quality, and the Arizona State Land Department, among others.

We act as a contact with contractors to perform Biological, Archaeological, and Native Plant Surveys. We assist clients with any matter related to the management and day to day operations in each phase of a mining operation from the initial stages of acquisition and exploration through production and remediation.



Backes, Jason

Bargar, John

Bass, Sam
About Me

Benedetti, Marc
About Me


2001 Habilitation à Diriger de Recherche de l’Université Pierre et Marie Curie.

1989 Thèse de Doctorat de l’Université de Paris VII : Spécialité géochimie fondamentale.

1985 D.E.A. de Géochimie et Géophysique Interne, Université Paris VII..



The overall focus of my research concerns the study of interactions between major and trace elements and major constituents of water and soil in biogeochemical cycles. Continental surfaces are the locus of significant transfers and exchanges of materials. At the watershed scale, these transfers are made in a large geochemical cycles: weathering of rocks - transport by rivers - sedimentation - diagenesis.

To understand these transfers and the environmental role of organic matter, it is necessary to determine the speciation of chemical elements in the environment: dissolved, colloidal, and / or solid. The adsorption and complexation of major and trace elements by finely divided materials (ie colloidal minerals, organo-inorganic and organic) influence transfer processes in rivers and soils.

A - Experimental study of processes at interfaces, understanding the mechanisms that control the speciation and transfer of elements in water and soil. He is studying the reactions of heterogeneous solid-liquid type.

B - Modelling of interactions between major and trace elements and various components of water-soil system.

C - Speciation of chemical elements in natural environments (water and soil).

D - Study of the early weathering.



1989-1993 CNRS Researcher (CR2) University Aix Marseille III, France.

1993-1996 CNRS Researcher (CR2) Agricultural University of Wageningen, The Netherlands.

1996-2004 CNRS Researcher (CR1) Université Pierre et Marie Curie.

2004-Pres Head of the Aquatic Geochemistry Team IPGP-UMR 7154, Paris, France.

2004-Pres Full Professor, Dept. of Chemistry, University Paris Diderot, Paris, France.

2009-Pres. Deputy Director for Sciences Affairs, University Paris Diderot, Paris, France.

2009-Pres. Deputy Director of the IPGP, Paris, France.



Member of the Scientific board of the CEFIPRA Indo French collaboration (2010-2014).

Member of the Scientific board Program PNETOX (programme national en ecotoxicologie) (2004-2008).

Member of the Scientific board Program Ecotdyn de l’ACI ECCO (2003-2006).

Member of the CNRS national comity CID N°46 (2003-2004).

Project review for NERC (UK) et Swedish research Council and French ANR and AERES and IRD.

Member of : American Chemical Society, Geochemical Society, AGU, IHSS et Président du groupe français de l’International Humic Substance Society (2006-2012).



1. PI , « Devenir nanoparticules manufacturées dans les eaux et les sols », funded by AFSSET, amount 100,000 € from 2007 to 2011.

2. Co PI, « Dynamique du carbone en Amazonie », funded by ANR Blanche, amount 80 000 € from 2008 to 2012.

3. Co PI, « NORMARHYZO » funded by ANR, amount 27.000 € from 2010 to 2013.

4. PI « PIREN Seine », funded by Multiple sources SIAAP, AESN, CNRS, amount 20 000€/y from 2006 to 2014.

5 PI « In situ trace metal speciation monitoring”, funded by ANR International France Portugal, amount 343.200 € from 2013-2017.

Blythe, Isaac

Boland, Nathan
About Me

Bracco, Jacquelyn

Buerki, Peter
About Me

About Me

Professional Information and Work Experience can be found in my LinkedIn Public Profile at

My interests include Geochemical & Biogeochemical Cycling, as well as Remobilization & Remediation of Toxic Trace Elements from Soils and Sediments in Aqueous Environments; Marine Geochemistry & Biogeochemistry.

Chris, Colla
22 years old
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