Molecule of the Month - Gammacerane

This unusual hopane-like compound is recognised together with the hopanes in the m/z 191 mass chromatogram and was for many years used as a biomarker of hypersalinity due to its common high abundance in sediments deposited under such conditions.   However, a key paper by Sinninghe-Damsté et al.

Paul Farrimond

Director & Technical Advisor

Tiago Cunha (IGI Ltd) will be attending the First EAGE Atlantic Geoscience Resource Exploration and Development Symposium – Marrakech

4 - 7 of May 2025 - to present the latest results on our Petroleum Systems Modelling (PSM) study for the MSGBC Basin.  

A joint effort between TGS and IGI integrates the results from an extensive multibeam and seafloor sampling campaign with a regional seismic data set.

Tiago Cunha

Senior Petroleum Geochemist / Basin Modeller

Technical Note

Molecule of the Month

Tetracyclic Polyprenoids (TPPs) By Paul Farrimond

Two C30 tetracyclic polyprenoids (TPPs) are often seen as a characteristic doublet of peaks eluting after the C27-C29 diasteranes in the m/z 259 mass chromatogram from GC-MS analysis of oils and source rocks (Holba et al. , 2000).