GeoSep Services (GSS) is a small business dedicated to providing high-quality mineral separations and additional apatite and zircon analyses to support the international geochronology/thermochronology community.

GSS is located in Moscow, Idaho, within the beautiful Palouse region of Idaho and Washington, USA.


We hope to see you at GSA2017 (October, Seattle) or the AGU Fall Meeting (December, New Orleans).


We had so much fun at Thermo2016 in Maresias, São Paulo, Brazil! Check out our pictures. We can't wait to see what Thermo2018 in Germany has to offer us and the thermochronology community!