Postdoctoral Research Fellow (APD)

Ph.D.: Utrecht University, The Netherlands, 2001

Email: a.dijkstra@curtin.edu.au

or a.dijkstra@westnet.com.au

Tel: +61 (0)8 9266-2449

Fax: +61 (0)8 9266-3153

Rm: 112 (building 120)

• Tectonic and igneous processes at oceanic spreading centres, through the study of ophiolites (Othris, Oman, Dariv) and Macquarie Island.
• Physical and chemical characteristics of melt transport through the (oceanic) mantle and into the crust.
• The effect of melt on the deformation behaviour and rheology of mantle rocks.
• The development of tectonite and mylonite shear zones in mantle peridotites.
• Accretionary orogenesis with emphasis on the Paleozoic Altaids Orogen in Western Mongolia.

Photo (left): Dickson Cunningham, Gombusuren Badarch, James Howard & Arjan Dijkstra in Mongolian Altai, 2000.

Image (right): Macquarie Island AIRSAR images showing fault scarps related to present-day dextral transtensional/releasing bend setting. (A) Detail of the Prion Lake area. Arrows mark prominent fault scarps bounding the Prion Lake basin. (B) Detail of Major Lake area. Arrows mark a system of NW-SE and NNE-SSW trending faults. The former are re-activated seafloor structures that are affected by hydrothermal alteration and mineralization typical for oceanic spreading centres (S. Lewis, pers. comm., 2004). From: Tapley, Dijkstra & Brolsma, in press 2004.

Dijkstra, A.H., F.M. Brouwer, W.D. Cunningham, C. Buchan, G. Badarch, & P.R.D. Mason. Late Neoproterozoic proto-arc ocean crust in the Dariv Range, Western Mongolia - a supra-subduction zone end-member ophiolite. Submitted to J. Geol. Soc. London, November 2004.

Tapley, I., Dijkstra, A.H. & H. Brolsma. The geology, landforms and topography of sub-antarctic Macquarie Island, Australia, as revealed by AIRSAR. Proceedings of the International Geoscience and Remote Sensing Symposium, Anchorage, Alaska, September 20-24, 2004, IEEE Conference Proceedings, in press 2004.

Dijkstra, A.H.& P.A. Cawood, 2004. Base-up growth of ocean crust by multiple phases of magmatism: field evidence from Macquarie Island, in: J. Geol. Soc. London 161, 739-742. Request a pdf reprint

Dijkstra, A.H., M.R. Drury, R.L.M. Vissers, & J. Newman, H.L.M. Van Roermund, 2004. Shear zones in the upper mantle: Evidence from alpine- and ophiolite-type peridotite massifs, in: Alsop, G.I., R.E. Holdsworth, K.J.W McCaffrey, & M. Hand (eds), "Flow processes in faults and shear zones", Geological Society London Special Publication 224, 11-24. Request a pdf preprint

Dijkstra, A.H., M. Barth, M.R. Drury, P.R.D. Mason, & R.L.M. Vissers, 2003. Diffuse porous melt flow and melt-rock reaction in the mantle lithosphere at a slow-spreading ridge: A structural petrology and LA-ICP-MS study of the Othris Peridotite Massif (Greece). G-cubed, vol. 4, no. 8, doi:10.1029/2001GC000278. Request a pdf reprint

Barth, M.G., P.R.D. Mason, G.R. Davies, A.H. Dijkstra, & M.R. Drury, 2003. Geochemistry of the Othris Ophiolite, Greece: Evidence for refertilization? J. Petrology 44, 1759-1785.

Cunningham, W.D., A.H. Dijkstra, J. Howard, A. Quarles, & G. Badarch, 2003. Active intraplate strike-slip faulting and transpressional uplift in the Mongolian Altai, In: Storti, F., Holdsworth, RE, Salvini, F. (eds.): Intraplate strike-slip deformation belts. Geological Society London Special Publication 210, 65-87.

Howard, J.P., W.D. Cunningham, S.J. Davies, A.H. Dijkstra, & G. Badarch, 2003. The stratigraphic and structural evolution of the Dzereg Basin, Western Mongolia: Clastic sedimentation, fault inversion and basin destruction in an intracontinental transpressional setting. Basin Research 15, 45-72.

Dijkstra, A.H., M.R. Drury, & R.M. Frijhoff, 2002. Microstructures and lattice fabrics in the Hilti mantle section (Oman Ophiolite): Evidence for shear localization and melt weakening in the crust-mantle transition zone. J. Geoph. Res. 107, NO. B11, 2270, doi:10.1029/2001JB000458. Request a pdf reprint

Dijkstra, A.H., M.R. Drury, R.L.M. Vissers, & J. Newman, 2002. On the role of melt-rock reaction in mantle shear zone formation in the Othris Peridotite Massif (Greece), J. Struct. Geol. 24, issue 9, 1431-1450. Request a pdf reprint

Dijkstra, A.H., M.R. Drury, & R.L.M. Vissers, 2001. Structure and petrology of plagioclase-peridotites in the West Othris Mountains (Greece): Melt impregnation in mantle lithosphere, J. Petrology 42, 5-24. Request a pdf reprint

De Boorder, H., van Beek, A.J.J., Dijkstra, A.H., Galetsky, L.S., Koldewe, G., and Panov, B.S. 1996. Crustal architecture of the Donets basin: Tectonic implications for diamond and mercury-antimony mineralization. In: Stephenson, R.A., Wilson, M., Starastenko, V.I. (eds.) Europrobe: Intraplate Tectonics and Basin Dynamics of the Eastern European Platform, Tectonophysics, 268 (1-4), p. 293-309.

THESIS
Dijkstra, A.H., 2001. Deformation and melt in natural mantle rocks: The Hilti Massif (Oman) and the Othris Massif (Greece), Ph.D. thesis, Universiteit Utrecht, The Netherlands, 164 pp. ISBN 90-393-2707-6. Copies available on request.

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