skip to primary navigationskip to content

Gt & Sp oxybarometry

Gt- and Sp-Oxybarometry

GtfO2 and SpfO2, two programs to calculate fO2 of mantle Garnet peridotites and Spinel peridotites from mineral analyses.

GtfO2 and SpfO2 are programs which takes mineral analyses in the form of oxide weight percent. Errors are propagated from the probe data to the final fO2 values. These programs follow the method outlined in Miller, Holland & Gibson (2016, J. Pet) and use multi-reaction oxybarometry to yield least squares estimates of fO2.

Executables, a Read.Me file and example input files are provided

Updated July 2016 

Versions available: 

       download:  Mac OSX

       download:  Windows

       download:  Linux 

These downloads hold executables, sample input files and documentation explaining the use of the program for Mac, Linux and Windows. 

RSS Feed Latest news

International team head to Papua New Guinea to measure volcanic carbon degassing

Sep 01, 2016

An international team of scientists is traveling to the islands of Papua New Guinea this September to study degassing from active volcanoes in remote jungles there. Some of these volcanoes are among the most active on Earth, ejecting a significant proportion of global volcanic gases into the atmosphere.

Mistaken Point - Canada's 10th geological World Heritage Site

Aug 02, 2016

The ancient rugged coastline of Mistaken Point on Newfoundland’s Avalon Peninsula face the winds and waves of the Atlantic Ocean. It can be a difficult place to work, but nevertheless it has been a mecca for geologists for over several decades now.

An underestimated Kevan

Jul 21, 2016

Douglas Palmer on the Sedgwick Museum’s giant Pliosaurus cf. kevani in the latest edition of Geoscientist

Oesia – a new tube worm from deep Cambrian times

Jul 21, 2016

Collections up close, Sedgwick Museum of Earth Sciences

View all news

Stories from the field...