AAG Blog

The AAG blog covers hot topics in geochemistry, latest news, and latest AAG activities. Blog post suggestions and submissions can be sent to Website Coordinator, Brumo Lemiere (B.Lemiere@brgm.fr).



New article about baseline before mining:

A recent review paper by DK Nordstrom from USGS provided valuable suggestions for geochemists in charge of determining the initial baseline conditions before a mine is planned. These suggestions are also relevant for exploration projects and should be useful for a large part of the applied geochemists community. Click here for the article through Science Direct.

Join the discussion on our AAG LinkedIn group.



Please let me introduce myself (Bruno Lemiere) as the new Website Coordinator. My duty is to make sure our site is continuously updated with news and topics of interest for the applied geochemists community. Please send us news, ideas and content for the website. We plan to introduce soon a section about "hot topics" among geochemists.  It should be under a moderated blog form. You are welcome to suggest topics!



Pim van Geffen 2013 Student paper prize

Congratulations to Pim van Geffen, winner of the 2013 Student Paper Prize. You can read more about Pim and see his abstract here.


whatsnews Nov2012

Prof. Cliff Stanley with his myself, M.Sc. student Ronald Massawe (centre), and Exploration Manager Meles Hagos from the Bisha Mining Share Company (a joint venture between Nevsun Resources of Vancouver and the Eritrean government) in the Bisha VHMS deposit core shed in Eritrea. Ronald just finished studying the lithogeochemistry of the host rocks to the deposit, and determined, among other things, why there is so little muscovite alteration associated with it. Ronald has now graduated a is lecturing in his homeland as Assistant Lecturer in the new Geology Program at Sokoine University of Agriculture in Morogoro, Tanzania. 

Submitted November 2012


John Kozuskanich

Congratulations to John Kozuskanich, winner of the AAG 2011 Student Paper Prize. John is a Postdoctoral Reserach Fellow at the National Centre for Groundwater Research and Training, Flinders University, Adelaide SA.


2011 RobBowell

Robert Bowell (SRK) in northern Namibia in the field area of Seisfontein Copper Project. Rob is AAG's Distinguished Lecturer for the next 2 years. Summer 2011.

2011 Itacaiunas_PanConcentrate

Geochemical sampling in the Amazon/Pará State - Carajás Mineral Province - Itacaiúnas River. Geochemical mapping of Serra Pelada 100K sheet (SB.22-X-C-VI).
2011 Caraca_StreamSediment

Geochemical mapping of 15 100K sheets (45.000 Km2) - using soils (B horizon; -80# fraction), stream sediments (-80# fraction) and heavy minerals concentrates.

Photos from João H. Larizzatti (November, 2011).

2011 cyp5623a

The Director of the Geological Survey Department Dr Eleni Morisseau and Mrs Costantina Kapodistria trying their hand at soil sampling on the salt flats at Akrotiri near Lemesos in December 2009.

2011 cyp4529b

Prof David Cohen and Dr Andreas Zissimos sampling in crop and orchard fields near the abandoned Limni Cu Mine in the Pafos district in spring 2008.

The geochemical atlas of Cyprus is a recent addition to the series of national to continental-scale soil geochemical mapping programs implemented over the last two decades for environmental and resource applications. Unlike previous national soil geochemical surveys this study has been conducted at the high sampling density of 1 site per 1 km2, with multi-element and multi-method analysis performed on top soil (0–25cm) and sub soil (50–75 cm) samples from a grid of over 5,500 sites across the area of the Republic of Cyprus.

Photos provided by Dave Cohen, 2011.




In the Earth Resource Exploration stream in one of the M.Sc. courses at ITC, www.itc.nl, fieldwork training in the German Harz Mountains incorporates digital field data collection, use of IR-field spectrometer, portable XRF and gamma-ray spectrometer but also well established geochemical sampling techniques including heavy mineral panning. In the Harz training programme students are taught how to integrate airborne geophysical data and satellite hyper spectral RS images with ground truth field data. The idea the Harz Mountain is a non-exploration target is refuted by the recent drilling programme by Scandinavian Highlands near Goslar, less than a kilometer away from the world class Rammelsberg Sedex deposit. Course participants at ITC are young professionals mostly from developing countries. Picture taken by Frank van Ruitenbeek, 2009.

Submitted by Boudewijn de Smeth, the guy in the green shirt, desmeth@itc.nl


Field Trip in the Gulf of Napoli
Prof. Benedetto De Vivo (Dipartimento di Scienze della Terra, Universit di Napoli, Italy) is Chief co-editor of the Journal of Geochemical Exploration. Here he is leading a field trip in the Gulf of Napoli (Mt. Vesuvius in background) for the Short Course "Fluids in Earth" in early November 2009. Photographed shows students and (in back row) Drs. Bodnar, Danyushevsky, De Vivo, Lima, and Webster. June, 2010. 
Provided by Dave Lentz


2010_SRF_small 2010_barge_small

An exploration geochemist considers watercourse sediments as a fundamental prospection media. An applied geochemist considers also the impact of mining on downstream sediments for pollution monitoring. But he may also meet river and canal sediments, which need to be dredged now and then for navigation, and to have to deal with their contents in pollutants (legacies of nearby industries). We are currently experimenting with the field portable XRF spectrometer in order to help waterways agencies sort contaminated from uncontaminated sediments during dredging, and thus classify the sediments for reuse or disposal. The experience gained on field XRF analysis of wet material should be profitable for some mining and ore processing applications. May 4, 2010. 
Provided by Bruno Lemiere (BRGM)


Dave Smith receiving the AAG 2009 AAG Silver Medal from President David Cohen at the Awards Banquet of the 24th International Applied Geochemistry Symposium held in Fredericton, New Brunswick. June 3, 2009. 
Provided by Dave Lentz


Gerry Govett receiving the AAG 2009 AAG Gold Medal from President David Cohen at the Awards Banquet of the 24th International Applied Geochemistry Symposium held in Fredericton, New Brunswick. June 3, 2009. 
Provided by Dave Lentz


Dr. Nigel Radford is the 2008 winner of the Butt-Smith Medal for outstanding and sustained contribution linking regolith science to exploration in Australia. It was presented at the Australian Earth Sciences Convention by Drs. Mike McWilliams (Chief CSIRO Exploration and Mining) and Steve Rogers (CEO CRC LEME). In the photo are (L-R) Dr. Charles Butt, 2008 Butt-Smith Medal Recipient Dr. Nigel Radford, and Dr. Ray Smith. More information on Radford's award is available here. 
Provided by Dave Lentz


David Lentz as AAG's rep. at the IYPE launch in Paris, Feb. 12, 2008. See http://www.yearofplanetearth.org/ 
Photo taken February, 2008


Professor Xie Xuejing giving AAG Gold Medal acceptance speech at the AAG 23rd International Applied Geochemistry Symposium gala dinner in Oviedo, Spain. June 18, 2007. 
Photo taken by Bob Eppinger



Flamenco dancers and musicians entertaining the crowd at the gala dinner, AAG 23rd International Applied Geochemistry Symposium, Oviedo, Spain, June 18, 2007. 
Photo taken by Bob Eppinger



Former AAG President Rob Bowell (left) presenting AAG Regional Councilor Theo Davies (right) with 230 kg of rocks, fossils, minerals, texbooks, and journals (foreground) at Heathrow airport. The materials, tbe used by Davies and colleagues at the Department of Geology and Mining, University of Jos (Nigeria), include a complete set of JGE and GEEA through 2005 and Explore, donated by Robert van Tassel, a retired AAG member. 
Photo taken in Fall, 2007 
Provided by Rob Bowell



This photo was taken near the village of Axylou in Cyprus. In the background are the famous Troodos Mountains. I (David Cohen) am currently leading a project with Neil Rutherford and the Cyprus Geological Survey Department (GSD) to develop a Geochemical Atlas of Cyprus. Over the last eight months, we have collected nearly 10,000 soil samples, as well as blowing up one engine, stripping two gear boxes and having one vehicle recovered from a creek by a large backhoe, as our teams cover one of the roughest 4-wheel-drive terrains in Europe. We generally avoid Wednesdays and Sundays in the field as these are the hunting days in Cyprus. 
Photo taken in December, 2006 
Provided by David Cohen (Earth and Environmental Sciences University of New South Wales)

















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