Figure 6 highlights three representative images of exterior shell surfaces of the same left valves used for electron microprobe
The subject of the contract is the acquisition of the electron microprobe
, used for chemical microanalysis of solid phases (mainly geological samples) by wavelength and energy dispersive x-ray spectrometry (esd, wds) and to study samples by scanning using a wide range of imaging techniques (bse, se, cl ) in very high resolution.
A scanning electron microprobe
analysis has been completed on a suite of core and rock samples to specifically identify the vanadium mineralogy.
A total of 156 garnet grains were submitted for electron microprobe
The section on petrology includes a diverse suite of articles that cover apatite in igneous systems (Piccoli and Candela), apatite, monazite, and xenotime in metamorphic systems (Spear and Pyle), electron microprobe
analysis of the aforementioned (Pyle, Spear, Wark), and sedimentary phosphates (Knudesen and Gunter).
He started specializing in the Electron Microprobe
(EPMA) at the Solar Energy Research Institute in 1981, where he performed research evaluating emerging materials for photovoltaic applications.
5 kg, were crushed and separated into heavy mineral concentrates (HMC) from which garnet, clinopyroxene, orthopyroxene, olivine, ilmenite and chromite indicator minerals were picked and analysed by electron microprobe
at a commercial laboratory.
Two types of analysis were used: X-ray fluorescence and electron microprobe
Initial work on the pegmatite by the OGS and The Open University of the United Kingdom consisted of two field seasons of study, 1648 electron microprobe
analyses, 50 bulk chemical analyses, 21 analyses of potassium feldspar and X-ray diffraction work conducted upon 30 samples.
The combination of visual sorting and quantitative X-ray analysis using the electron microprobe
permits most artefacts to be quickly and inexpensively analysed.
Mineral compositions were determined on an automated CAMECA electron microprobe
with accelerating potential set at 15 keV and sample current at 15 na, with a beam diameter of 10 mm.
The cake is examined for inclusions by metallographic and constitutional analysis that may include optical, electron microprobe
and energy dispersive techniques.