Dr Nicholas M Lemon

Principal Petroleum Geologist/Senior Lecturer

Telephone: +61 8 8303 4293
Facsimile: +61 8 8303 4345
E-mail: nlemon@ncpgg.adelaide.edu.au

Nick has spent ten years in industry with BHP working on projects ranging from Proterozoic iron formations and base metal exploration to coal and oil shale exploration and the assessment of low grade energy reserves. This was followed by a return to the University of Adelaide to undertake a PhD degree. The thesis topic was "Diapir recognition and modelling, with examples from the late Proterozoic Adelaide Geosyncline, Central Flinders Ranges, South Australia." This involved detailed mapping of a wide range of sedimentary environments, and a recognition of the modifications to these environments and their sediments induced by nearby active diapirs.

Current research interests include the chemical modification of depositional environments around diapirs, tectonic controls on sedimentation in Australian basins, and the diagenesis of Australian hydrocarbon reservoir rocks. An interest in producing analogue models of diapirs has expanded to include 3D models of extensional fault systems. Nick supervises the petrography lab at the NCPGG and is interested in improving the description of oilfield reservoir rocks through quantification of sediment size, composition and porosity distributions by image analysis of thin sections. Nick fosters the concept of complete rock description by integrating transmitted light microscopy with XRD, SEM, cathodoluminescence and high quality photography at a range of scales.

Additional interests include the mapping of a Neoproterozoic stromatolite reef complex around the Enorama Diapir and the study of secular carbon and oxygen isotope trends in the Neoproterozoic as an aid to determine the evolution of the earth's atmoshere and of life on earth.

Recent publications:

Apak, S.N., Stuart, W.J., Lemon, N.M. and Wood, G., 1997. Structural evolution of the Permian-Triassic Cooper Basin: Relation to hydrocarbon trap styles. AAPG Bulletin, 81 (4), 533-555.

Das., P.K. and Lemon, N.M., 2000. Flat spot anomaly: Possible gas sands in the NW Bass Basin. Petroleum Exploration Society of Australia Journal, 28, 51-57.

Kraishan, G.M. and Lemon, N.M., 2000. Fault-related calcite cementation: Implications for timing of hydrocarbon generation and migration and secondary porosity development, Barrow Sub-basin, North West Shelf. APPEA Journal, 40(1), 215-229.

Lemon, N.M., 2000. A Neoproterozoic fringing stromatolite reef complex, Flinders Ranges, South Australia. Precambrian Research, V.100, p.109-120.

McKirdy, D.M., Burgess, J.M., Lemon, N.M., Yu, X., Cooper, A.M., Gostin, V.A., Jenkins, R.J.F. and Both, R.A., 2001. A chemostratigraphic overview of the late Cryogenian interglacial sequence in the Adelaide Fold-Thrust Belt, South Australia. Precambrian Research 106, 149-186.

Rezaee, M.R., Lemon, N.M. and Seggie, R, 1997. Tectonic fingerprints in siderite cement, Tirrawarra Sandstone, southern Cooper Basin, Australia. Geological Magazine 134. (1), 99-112.

Rezaee, M.R. and Lemon, N.M., 2000. Diagenetic studies, a key to reveal the timing of oil migration: an example from the Tirrawarra Sandstone reservoir, Southern Cooper Basin, Australia. Iranian International Journal of Science, V.1, (1), p25-58.

Young, H.C., Lemon, N.M. and Hull, J.N.F., 2001. The middle Cretaceous to Recent sequence stratigraphic evolution of the Exmouth-Barrow Margin, Western Australia. APPEA Journal, 41(1), 381-413.

CL image of vein fill in a sheeted cavity, Neoproterozoic Nuccaleena Dolomite