Gallois, Arnaud

Arnaud Gallois

Contract Scientist

Personal Information


Educational Background

  • 2012-2017 PhD in Geology, thesis title: Late Jurassic lacustrine carbonates; a multi-scale analysis of the Mupe Member (Purbeck Limestone Group) of the Wessex Basin, U.K., Department of Earth Sciences, Royal Holloway University of London, Egham, UK.
  • 2008-2010 MSc in Geology, University of Aix-Marseille, Marseille, France
  • 2005-2008 Bachelor in Geology, University of Aix-Marseille, Marseille, France
  • 2017 Post-doctoral research on the non-marine limestones of the Wessex Basin, Royal Holloway University of London, Egham, UK.
  • 2012-2017 Teaching assistant (lectures, filedtrips, practicals and supervision of undergraduate and postgraduate students). Royal Holloway University of London, Egham, UK.
  • 2012 Research assistant, Structural study of Cretaceous Formations exposed in the Calanques Mountain (SE France). Laboratory of Geology, University of Aix-Marseille, Marseille, France.
  • 2011 Research assistant, Petrophysic properties of ramp carbonates from outcrops located near CEA Cadarache (SE France). Laboratory of Geology, University of Aix-Marseille, Marseille, France.
  • 2010-2011 Research assistant, Structural, sedimentological and diagenesis study of Cretaceous formations cropping out at La Nerthe mountain (near Marseille). Laboratory of Geology, University of Aix-Marseille, Marseille, France.
  • 2010-2011 Research assistant and MSc summer project, Origin of the dolomitic units exposed at “l’Etoile” and “La Nerthe” mountains (near Marseille, SE France): petrographic and diagenetic study. Laboratory of Geology, University of Aix-Marseille, Marseille, France.
Academic services
  • 2015 Co-convener at EGU General Meeting in Vienna, session SSP 2.1.2. Carbonate sedimentary systems as archives of global change.


Research Interests

My principal research interests lies in the sedimentology, diagenesis and petrophysical properties of non-marine carbonates with a particular interest in microbialite deposits within these environments, overall integrated with numerical forward and static modelling. My future research plans consist of developing and encouraging such integrated studies through the study and comparison of ancient and modern non-marine carbonate and microbialite deposits, analogues of South-Atlantic petroleum reservoirs. The characterisation of environmental controls helps to improve proposed facies models for non-marine carbonates while the morphological characterisation of microbial mounds helps to understand their palaeoenvironmental significance within these complex systems. This will result in a better understanding of environmental controls (such as hydrology, water chemistry, tectonic) on the deposition of non-marine carbonates, facies distribution and microbial growth in such environments. This will involve field campaigns worldwide, sedimentology, diagenesis, geochemistry, sequence stratigraphy and structural analysis to be replaced at a larger-scale in basinal settings. Potential field areas are modern lacustrine environments on the western coast of Australia (Rottnest Island, Lake Richmond, Lake Clifton, Lake Thetis, and others), on the eastern coat of Brazil (Lagoa Salgada), in USA (Great Salt Lake, Utah; Green Lake, New York). The integration with numerical modelling results in a better constraint of these controls and the enhancement of predictive value of models.


Active Projects

Geodynamic evolution of rift to drift, salt-involved and inverted passive margins

Past Projects

Royal Holloway




Previous selected publications

Previous selected publications


Gallois A., Bosence D. and Burgess P. (accepted) Brackish to hypersaline rapid facies transitions in lacustrine carbonates: Purbeck Limestone Group, Upper Jurassic-Lower Cretaceous, Wessex Basin, Dorset, U.K. Facies

Bosence D., Collier J., Fleckner S., Gallois A. and Watkinson I. (submitted) Discriminating between the origins of remotely sensed circular structures; carbonate mounds, diapirs or periclinal folds? Purbeck Limestone Group, Weymouth Bay, U.K. Journal of the Geological Society of London.

Bosence D., Burgess P., Galloi A., Kozlowski E. Billing I. and Vining B. (in prep.) Can Jurassic microbes be predicted?

Gallois A., Bosence D. and Burgess P. (in prep.) Tectono-sedimentary models for extensional lacustrine system of the Wessex Basin (southern England, U.K.): the Mupe Member of the Purbeck Limestone Group (Upper Jurassic – Lower Cretaceous).

Gallois A., Bosence D., Burgess P. and McCaffrey K. (in prep.) Brackish-water microbial mounds in lacustrine settings: controls on their growth and distribution; The Purbeck Limestone Group (Upper Jurassic – Lower Cretaceous) of Dorset (southern England).


Lavenu A., Lamarche J., Salardon R., Gallois A. Marié L. and Gauthier B. (2014) Relating background fractures to diagenesis and rock physical properties in a platform-slope transect. Example of Maiella Mountain (Central Italy). Marine and Petroleum Geology, V. 51, p.2-19


Lavenu A., Lamarche J., Gallois A., Gauthier (2013) Tectonic versus diagenetic origin of fractures in naturally fractured carbonate reservoir analogue (Nerthe anticline, southeastern France). AAPG Bulletin, V. 97, No. 12 (December 2013), p.2207-2232.

Bruna P.-O., Guglielmi Y., Lamarche J., Floquet M., Fournier F., Sizun J.-P., Gallois A., Marié L., Bertrand C., Hollender F. (2013) Porosity gain and loss in unconventional reservoirs : Example of rock typing in Lower Cretaceous hemipelagic limestones, SE France (Provence). Marine and Petroleum Geology, V. 48, December 2013, p.186-205.


Fournier F., Leonide P., Biscarrat K., Gallois A., Borgomano J. and Foubert A. (2011) Elastics properties of microporous cemented grainstones. Geophysics, V. 76, No. 6 (November-December 2011), p.E211-E226.

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