Lamorde, Umar A.Parnell, JohnBowden, Stephen A.2015-03-312015-03-312015-02Lamorde, U A, Parnell, J & Bowden, S A 2015, 'Constraining the genetic relationships of 25-norhopanes, hopanoic and 25-norhopanoic acids in onshore Niger Delta oils using a temperature-dependent material balance', Organic Geochemistry, vol. 79, pp. 31-43. https://doi.org/10.1016/j.orggeochem.2014.12.0040146-6380http://hdl.handle.net/2164/4369Acknowledgements U.L. acknowledges the Department of Petroleum Resources of Nigeria for permission to release crude oil samples and the management of Shell Nigeria for provision of samples. The Petroleum Technology Development Fund (PTDF) provided the funds for this research through the award of scholarship to U.L. Sadat Kolonic (SPDC, Nigeria) provided the corrected BHT. The manuscript and work greatly benefitted from the critical and insightful reviews provided by K. Peters and an anonymous reviewer.131134722engbiodegradationcrude oilhopanes25-Norhopaneshopanoic acids25-norhopanoic acidsmass balanceNiger DeltaQE GeologyQEJournal article10.1016/j.orggeochem.2014.12.00479