Submitted/in press papers

Published papers

Roberts, AP, Chang, L, Rowan, CJ, Horng, CS and Florindo, F (2011). Magnetic properties of sedimentary greigite (Fe3S4): An update
Reviews of Geophysics 49(1), RG1002
doi: 10.1029/2010RG000336
Description:

Chang, L, Roberts, AP, Rowan, CJ, Tang, Y, Pruner, P, Chen, Q and Horng, CS (2009). Low-temperature magnetic properties of greigite (Fe3S4)
Geochemistry, Geophysics, Geosystems 10(1), Q01Y04
doi: 10.1029/2008GC002276
Description:

Rowan CJ, Roberts, AP and Broadbent, T (2009). Reductive diagenesis, magnetite dissolution, greigite growth and paleomagnetic smoothing in marine sediments: A new view.
Earth and Planetary Science Letters 277, p223-235.
doi: 10.1016/j.epsl.2008.10.016 | Download PDF
Description:

Detailed rock magnetic measurements and electron microscopy are used to chart the dissolution of magnetite and its slow replacement by greigite as the principal magnetic mineral in rapidly deposited marine sediment cores collected off the coasts of Oman and Northern California. The key observation is that growth of greigite occurs over prolonged timescales (10s to 100s of thousands of years), which will lead to smoothing of any paleomagnetic signal that is recorded in these sequences. We show that published rock magnetic data from many other cores around the world also show similar trends, suggesting that this problem might be widespread.

Rowan, CJ and Roberts, AP (2008). Widespread remagnetizations and a new view of Neogene tectonic rotations within the Australia-Pacific plate boundary zone, New Zealand.
Journal of Geophysical Research 113, B03103.
doi: 10.1029/2006JB004594 | Download PDF
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Chang, L, Roberts, AP, Muxworthy, AR, Tang Y, Chen, Rowan, CJ, Liu, Q and Pruner P (2007). Magnetic characteristics of synthetic pseudo-single-domain and multi- domain greigite (Fe3S4)
Geophysical Research Letters 34(24), L24304
doi: 10.1029/2007GL032114
Description:

Roberts, AP, Bakrania, A, Florindo, F, Rowan, CJ, Fielding, CR and Powell, RD (2007). High-resolution evidence for dynamic transitional geomagnetic field behaviour from a Miocene reversal, McMurdo Sound, Ross Sea, Antarctica
Earth Planets Space Vol. 59(7), p 815-824.
Abstract
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Roberts, AP, Liu, Q, Rowan, CJ, Chang, L, Carvallo, C, Torrent, J and Horng, CS (2006). Characterization of hematite (α-Fe2O3), goethite (α-FeOOH), greigite (Fe3S4), and pyrrhotite (Fe7S8) using first-order reversal curve diagrams
Journal of Geophysical Research 111(B12), B12S35
doi: 10.1029/2006JB004715
Description:

Rowan, CJ and Roberts, AP (2006). Magnetite dissolution, diachronous greigite formation, and secondary magnetizations from pyrite oxidation: Unravelling complex magnetizations in Neogene marine sediments from New Zealand.
Earth and Planetary Science Letters 241(1-2), p119-137.
doi: 10.1016/j.epsl.2005.10.017 | Download PDF
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Rowan, CJ and Roberts, AP (2005). Tectonic and geochronological implications of variably timed magnetizations carried by authigenic greigite in marine sediments from New Zealand.
Geology 33(7), p553-556.
doi: 10.1130/G21382.1 | Download PDF
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Rowan, CJ, Roberts, AP and Rait, GJ (2005). Relocation of the tectonic boundary between the Raukumara and Wairoa Domains (East Coast, North Island, New Zealand): implications for the rotation history of the Hikurangi margin.
New Zealand Journal of Geology and Geophysics 48(1), p185-196.
Abstract | Download PDF
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