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We maintain a Direct Current Plasma Emission Spectrometer (DCP)
as the "workhorse" instrument for the chemical analysis of rocks
and other geologically-relevant solids. The DCP is also the instrument
we use for the determination of trace-level B, Be, and Li abundances
in rocks and fluids - a unique capability not routinely available in
any other U.S. laboratory. We maintain two analytical "wet labs": one
for the routine dissolution of rock samples for compositional study, via
classical fluxed-fusion methods; and another "clean" laboratory maintained
as a B, Li and Be - free space, which we use to prepare samples for light
element analysis, for ultra-trace element determinations by ICP-MS, and
for the preparation of samples for Li and (soon to come!) B isotope ratio
determinations.
Also available at USF are tools for the determination of mineralogy
and mineral compositions. We maintain a Rigaku tabletop X-ray powder
diffractometer for the examination of mineralogical unknowns via powder
mount and smear slide methods. We are also well-equipped with research
grade petrographic microscopes with both transmitted and reflected light
capabilities; an automated heating-freezing stage for fluid inclusion
studies; an automated system for thin section photography; and several
modern binocular microscopes with photographic capabilities.
The
most recent innovation in the USF analytical arsenal is a remotely-operated
Electron Microprobe/Scanning Electron Microscope (EMPA/SEM) system.
The instruments, a state-of-the-art JEOL SuperProbe, and a JEOL 5900-series
SEM, are housed at Florida International University in the
Florida Center for Analytical Electron Microscopy (FCAEM)
,
and were obtained via a collaborative NSF grant for the use of geoscience
faculty at all the major Florida universities. The system is run from
desktop computers via an Internet 2 high data density connection, and
provides full, real-time optical and backscatter graphics, as well as
the full spectrum of quantitative micro-analysis options. We are currently
establishing a sample preparation lab for probe-SEM work in the Geology
Department currently.
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