Latest News

G-Probe Website now Open for Reporting Data

The G-Probe website is open for submission of data to Round 23, for which the test material is NoSM-1G.

As Round 22 provided an opportunity for participants to test the system and for familiarisation with it, it is anticipated that results for Round 23 will be reported online. There is a new facility, to enter results in spreadsheet format, however it is essential to follow the instructions provided to ensure that your data are accepted.

Although this round was due to close on 31st October, flexibility is being given for the benefit of those who were unable to trial the system previously and those for whom the available time for analysis was truncated. The absolute deadline is now Thursday 14th November.

Data submitted to Round 22 have been processed. A report will be downloadable from the online system for Round 22 very shortly.

For enquiries about:

The test material, its delivery and the programme, contact Steve Wilson: swilson@usgs.gov

The website and reporting results online, contact Peter Webb: gprobe.iag@gmail.com

Payments and subscriptions, contact Chris Jackson: iag-treasurer@virginmedia.com

G-Probe Account Number

Login ID



You are required to have authorisation from G-Probe before you proceed and you are strictly limited to the use set out within that authorisation. Unauthorised access to or misuse of this system is prohibited and constitutes an offence under the Computer Misuse Act (UK) 1990.
Your use of this website is subject to the terms and conditions of participation in G-Probe. By continuing you imply your acceptance of these terms and conditions.

Not yet a member?     About G-Probe    

If your contact details have changed please update them. If your contact status or that of your colleagues has changed please email us, quoting your G-Probe account number.

International Association of Geoanalysts - G-Probe
U.S. Geological Survey
PO Box 25046 MS 964 D
CO 80225
Telephone: 303-236-2454

Version: 1.00a