Fig 2 - uploaded by Tara Hayden
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(a-c) Touat 005 (UWO) Thin section EDS RGB maps of Ca (R), Fe (G), and Mg (B), along with XRF maps of Touat 005 (UWO) prior to thin section cutting of (d) Cr and (e) Ti.
Source publication
A detailed analysis of the textural and geochemical diversity of lunar meteorite Touat 005. Type specimens indicate a sample rich in anorthositic clasts and minor melt rock component, however, a newly acquired specimen may reveal increased heterogeneity in this meteorite
Context in source publication
Context 1
... XRF Variability: Touat 005 (UWO) is homogenous in hand specimen (Fig. 1), however, micro-XRF analysis reveals the presence of a large complex, brecciated clast (6 cm in longest dimension). This clast shows variability in Mg, Fe, Ti, and Cr relative to the rest of the sample, further confirmed through thin section EDS mapping (Fig. 2). Analysis via micro-XRF of Touat 005 (DD) will reveal whether this geochemical variability is consistent across Touat 005 specimens. Sample Petrography: Touat 005 (UWO) is dominated by a dark, fine-grained matrix comprised of impact melt crystallites hosting pyroxene, olivine, and plagioclase mineral clasts. The impact melt matrix ...
