[Latinmag] [Fwd: [Gpmag-l] Reminder: Postdoc opening at University of Wisconsin-Milwaukee]

[Rubén Somoza]

---------------------------- Mensaje original ----------------------------
Asunto: [Gpmag-l] Reminder: Postdoc opening at University of
Wisconsin-Milwaukee
De:     "Julie Bowles" <bowlesj en uwm.edu>
Fecha:  Lun, 10 de Septiembre de 2012, 11:45
Para:   "GP-MPRG" <emrp en gfz-potsdam.de>
        "GPMAG" <gpmag-l en ucsd.edu>
        MSA-Talk en Lists.minsocam.org
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Postdoc opening at University of Wisconsin-Milwaukee: 
Temperature-dependent cation ordering in titanomagnetites

The rock- and paleo-magnetic lab at the University of Wisconsin-Milwaukee
has an opening for a Postdoctoral Research Associate to explore the
temperature-dependence of cation distribution in natural titanomagnetites.
 Recent work has demonstrated that natural titanomagnetites with moderate
degrees of Mg- and Al- substitution have Curie temperatures that are
strongly time- and temperature-dependent, arising from changes in cation
ordering that reflect the thermal history of the sample.  This work is
likely to have important implications for how we interpret thermomagnetic
data from a wide range of natural volcanic rocks, as well as our
theoretical understanding of thermal remanent magnetization, which relies
on the assumption that Curie temperature is a material constant. It is
expected that the successful candidate will help guide the direction of
the future research, but in general the approach will involve a systematic
study of both natural and synthetic titanomagnetite samples in order to
determine the nature of the cation ordering and the role played by the
various cations and/or site vacancies. Quantification of the
composition-dependent kinetics will allow for the development and
refinement of a Curie temperature-based geospeedometer that may be applied
to estimate emplacement temperature and cooling rates of pyroclastic
eruptions.

The initial appointment is for 1 year, but it is expected that funding
will become available for a minimum of 1 additional year, assuming
satisfactory performance.  The work will be done in collaboration with
Mike Jackson at the Institute for Rock Magnetism (IRM), University of
Minnesota, and it is expected that some of the work will be carried out at
the IRM, which is ~5 1/2 hr drive from Milwaukee in Minneapolis.

A Ph.D. is required in a related field, and preferred candidates will have
expertise in mineral magnetism, neutron or X-ray diffraction, or XMCD. 
However, anybody with an interest in the topic and background in a related
field should contact Julie Bowles (bowlesj en uwm.edu) for additional
information or a more detailed project description. Evaluation of
applications will be immediate and continue until the position is filled.
To apply, please send a CV (including publications), a statement
describing research background and interests, and a list of three people
who can provide letters of reference to Julie Bowles (bowlesj en uwm.edu).

The University of Wisconsin-Milwaukee is a large, research-oriented
institution located on the northeast side of Milwaukee, five blocks from
Lake Michigan. The Department of Geosciences offers B.S./B.A., M.S., and
Ph.D. degree programs (http://www4.uwm.edu/letsci/geosciences/). UWM is an
AA/EEO employer.


_________________________________

Julie Bowles
Assistant Professor
Department of Geosciences
University of Wisconsin - Milwaukee

P.O. Box 413, Lapham Hall 366
Milwaukee, WI  53201

bowlesj en uwm.edu
414-229-6110
https://pantherfile.uwm.edu/bowlesj/www/
_________________________________



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Rubén Somoza
Dpto. Ciencias Geológicas, FCEyN, UBA
Ciudad Universitaria, Pabellón 2
C1428EHA, Buenos Aires, Argentina
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