A seminar series on diffusion modelling to determine timescales of
processes (Diffusion Chronometry)
Dear Colleagues,
Our next seminar series will be held on Thursday, September 23
(16:30-18:30 CEST) with
Hannah Shamloo, Oregon State University, USA: “Rethinking How We
Determine Magmatic Timescales: Multi-mode Mg Diffusion in Sanidine and
Implications for the Timing of Eruption Initiation”
/Summary://Mineral zoning and the diffusion of elements across these
zones has been widely used to determine the timescales of magmatic
processes. Recent experimental work reveals that diffusion in feldspar,
a ubiquitous phase in magmatic systems, is more complex than previously
understood, reshaping the way we use chronometers to determine
meaningful timescales. In this talk I will present a new experimentally
derived diffusion chronometer, and apply it to the Lava Creek Tuff
supereruption at Yellowstone in order to determine the timing of
eruption initiation./
and
Youxue Zhang, University of Michigan, USA: “Multicomponent and isotope
diffusion in silicate melts”
/Summary://All diffusion in natural melts is complicated
multicomponent diffusion. I will present our effort to obtain reliable 6
by 6 diffusion matrix in a 7-component haplobasalt, and 7 by 7 diffusion
matrix in an 8-component basalt similar to MORB. It is possible now to
roughly predict multicomponent diffusion in basalts. In addition,
diffusion of potassium isotopes during multicomponent diffusion will
also be discussed./
Registration is required to avoid undesired interruptions. Please
register by clicking the following link:
https://ruhr-uni-bochum.zoom.us/meeting/register/u5wkce6qrD0vGN2SCmOrd-ASaiAKJcYnLz-c
- all registrants will receive a link to the seminar that is valid for
that person only.
A recording of each seminar series is available via the following link:
https://diffchron.ruhr-uni-bochum.de/seminars/
M.Sc. Linda Sobolewski
Research Coordinator Research Unit 2881
Ruhr-Universitaet Bochum
Institut für Geologie, Mineralogie und Geophysik
Universitaetsstrasse 150
44780 Bochum
Germany
E-Mail: linda.sobolewski@ruhr-uni-bochum.de
*A seminar series on diffusion modelling to determine timescales of
processes (Diffusion Chronometry)*
Dear Colleagues,
Our next seminar series will be held on Thursday, September 23
(16:30-18:30 CEST) with
*Hannah Shamloo, Oregon State University, USA: “Rethinking How We
Determine Magmatic Timescales: Multi-mode Mg Diffusion in Sanidine and
Implications for the Timing of Eruption Initiation”*
/*Summary:*//Mineral zoning and the diffusion of elements across these
zones has been widely used to determine the timescales of magmatic
processes. Recent experimental work reveals that diffusion in feldspar,
a ubiquitous phase in magmatic systems, is more complex than previously
understood, reshaping the way we use chronometers to determine
meaningful timescales. In this talk I will present a new experimentally
derived diffusion chronometer, and apply it to the Lava Creek Tuff
supereruption at Yellowstone in order to determine the timing of
eruption initiation./
and
*Youxue Zhang, University of Michigan, USA: “Multicomponent and isotope
diffusion in silicate melts”*
/*Summary:*//All diffusion in natural melts is complicated
multicomponent diffusion. I will present our effort to obtain reliable 6
by 6 diffusion matrix in a 7-component haplobasalt, and 7 by 7 diffusion
matrix in an 8-component basalt similar to MORB. It is possible now to
roughly predict multicomponent diffusion in basalts. In addition,
diffusion of potassium isotopes during multicomponent diffusion will
also be discussed./
Registration is required to avoid undesired interruptions. Please
register by clicking the following link:
https://ruhr-uni-bochum.zoom.us/meeting/register/u5wkce6qrD0vGN2SCmOrd-ASaiAKJcYnLz-c
- all registrants will receive a link to the seminar that is valid for
that person only.
A recording of each seminar series is available via the following link:
https://diffchron.ruhr-uni-bochum.de/seminars/
M.Sc. Linda Sobolewski
Research Coordinator Research Unit 2881
Ruhr-Universitaet Bochum
Institut für Geologie, Mineralogie und Geophysik
Universitaetsstrasse 150
44780 Bochum
Germany
E-Mail: linda.sobolewski@ruhr-uni-bochum.de
