Dr. Graham Logan
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Contact Details: Phone: +61 2 6249 9460 Fax: + 61 2 6249 9961 Email: graham.logan@ga.gov.au Website: www.ga.gov.au Postal: |
Graham Logan leads the Geochemistry R&D program for Geoscience Australia. He has a wide interest in geochemistry and biogeochemistry, from oil and gas to mineral deposits spanning Archaean to Modern environments. In particular, his interests focus on the uses of molecular fossils (biomarkers) and stable isotopes to characterise ancient organic matter, environments and biological inputs to sediments.
Graham's interest in molecular fossils began in the UK during his PhD at the University of Bristol, where he studied the preservation of fossil leaves. In 1992 he moved to Indiana University to work on the biogeochemisty of the Precambrian-Cambrian boundary. He moved to Australia in 1995 to work for CSIRO and then Geoscience Australia in 1997. His early work at GA involved the 1.6 billion year old MacArthur River lead-zinc ore deposit. This has continued in a series of further studies that have included various members of the ACA team.
Relevant Publications
- Logan G.A., Hayes J.M., Hieshima G.B. and Summons R.E. (1995) Terminal Proterozoic reorganisation of biogeochemical cycles. Nature 376, 53-56.
- Logan G.A., Summons R.E. and Hayes J.M. (1997) An isotopic biogeochemical study of Neoproterozoic and early Cambrian sediments from the Centralian Superbasin, Australia. Geochim. Cosmochim. Acta 61, 5391-5409.
- McIlroy D. and Logan G.A. (1999) The impact of bioturbation on infaunal ecology and evolution during the Proterozoic-Cambrian transition. Palios 14, 58-71.
- Logan G.A., Calver C.R., Gorjan P., Summons R.E., Hayes J.M. and Walter M.R. (1999) Terminal Proterozoic mid-shelf benthic microbial mats in the Centralian Superbasin and their environmental significance. Geochim. Cosmochim. Acta 63, 1345-1358.
- Summons R.E., Jahnke L.L., Hope J.M. and Logan G.A. (1999) 2-Methylhopanoids as biomarkers for cyanobacterial oxygenic photosynthesis. Nature 400, 544-557.
- Brocks J.J., Logan G.A., Buick R. and Summons R.E. (1999) Archean molecular fossils and the early rise of eukaryotes. Science 285, 1033-1036.
- Labrenz M., Druchel G.K., Thomas-Ebert T., Gilbert B., Welch S.A., Kemner K.M., Logan G.A., Summons R.E., De Stasio G., Bond P.L., Lai B., Kelly S.D. and Banfield J.F. (2000) Sphalerite (ZnS) deposits forming due to growth of natural communiites of sulfate-reducing bacteria. Science 290, 1744-1747.
- Logan G.A. and Summons R.E. (2001) Late Proterozoic Biogeochemical Cycles. In Palaeobiology II (eds. Briggs D.E.G. & Crowther P.) Blackwell Science, Oxford pp22-25.
- Logan G.A., Hinman M.C., Walter M.R. and Summons (2001) Biogeochemistry of the 1640 Ma McArthur River (HYC) lead-zinc ore and host sediments, Northern Territory, Australia. Geochim.Cosmochim. Acta 65, 2317-2336.
- Mahjan T.B., Logan G.A., Plows F.L., Gillette J.S. and Zare R.N. (2001) Comparison of microprobe two-step laser desorption/laser ionization mass spectrometry and gas chromatography/mass spectrometry studies of polycyclic aromatic hydrocarbons in ancient terrestrial rocks. J. Am. Soc. Mass Spec. 12, 989-1001.
Last Updated: Jan 30 2006