[Lattard] Experimental constraints on the magnetic mineralogy of Fe-Ti oxides in basalts from HSDP-2 bore hole

German Title: Experimental constraints on the magnetic mineralogy of Fe-Ti oxides in basalts from HSDP-2 bore hole

Abbreviation: 182

Current Status: completed

Main Applicant:Prof. Dr. Dominique Lattard

Resources Recipient

Other Persons

Dr. Ralf Engelmann

Conveyor Begin:
Conveyor End:
Conveyor Duration:
Year: 2004


The Hawaiian Scientific Drilling Project (HSDP) provides an excellent opportunity to study the evolution of rock magnetism in relation to the growth history and magmatic evolution of a shield volcano. The main magmatic carriers in the basaltic rocks drilled from the HSDP-2 bore hole are the two Fe-Ti oxide minerals, titanomagnetite and ilmenite. The aim of the present project is to improve the correlations between magnetic properties and chemical-structural characteristics of these oxides at high (magmatic) temperatures, with an emphasis on titanomagnetite. The new data will contribute to a better understanding of rock magnetic properties of subaerial and submarine basaltic rocks that mainly build up the Hawaiian shield In a first stage we plan to determine characteristic magnetic parameters (e.g. Curie or Néel temperature, low-temperature behavior of the magnetic susceptibility, hysteresis parameters at room and low temperature) of synthetic Fe-Ti oxides equilibrated at high temperatures (1000-1150°C), with well-defined compositions (incl. vacancy concentrations) analogous to those in Hawaiian rocks. These new data will be applied especially to submarine samples recovered from the deep part of HSDP-2 that do not show late oxidation features.

Related Publications

Engelmann, Ralf, Kontny, Agnes, Lattard, Dominique (2010). "Low-temperature magnetism of synthetic Fe-Ti oxide assemblages" Journal of Geophysical Research: Solid Earth 115 pB12107

Sauerzapf, Ursula, Lattard, Dominique, Burchard, Michael, Engelmann, Ralf (2008). "The Titanomagnetite–Ilmenite Equilibrium: New Experimental Data and Thermo-oxybarometric Application to the Crystallization of Basic to Intermediate Rocks†" Journal of Petrology 49 (6) p1161-1185

Franke, C., Pennock, G. M., Drury, M. R., Engelmann, R., Lattard, D., Garming, J. F. L., von Dobeneck, T., Dekkers, M. J. (2007). "Identification of magnetic Fe-Ti oxides in marine sediments by electron backscatter diffraction in scanning electron microscopy" Geophysical Journal International 170 p545-555

Lattard, Dominique, Engelmann, Ralf, Kontny, Agnes, Sauerzapf, Ursula (2006). "Curie temperatures of synthetic titanomagnetites in the Fe-Ti-O system: Effects of composition, crystal chemistry, and thermomagnetic methods" Journal of Geophysical Research: Solid Earth 111 pB12S28