Abstract
This data article contains mineralogic and chemical data from mineral coatings associated with rock art from the East Alligator River region. The coatings were collected adjacent to a rock art style known as the “Northern Running Figures” for the purposes of radiocarbon dating (doi:10.1016/j.jasrep.2016.11.016; (T. Jones, V. Levchenko, P.L. King, U. Troitzsch, D. Wesley, 2017) [1]). This contribution includes raw and processed powder X-ray Diffraction data, Scanning Electron Microscopy energy dispersive spectroscopy data, and Fourier Transform infrared spectral data.
Highlights
Characterization of mineral coatings associated with a Pleistocene‐Holocene rock art style: The Northern Running Figures of the East Alligator River region, western Arnhem Land, Australia
Scanning Electron Microscope energy dispersive spectral (SEM-EDS) analysis (Hitachi 4300SE/N field emission scanning electron microscope equipped with an Oxford INCA Energy 350 EDS system at the Centre for Advanced Microscopy, Australian National University) 3
Fourier Transform Infrared (FTIR) spectroscopic analysis – mid-infrared spectral range (Bruker Tensor 27, Research School of Earth Sciences, Australian National University) Raw and analysed Characterization of mineralogy and chemistry of mineral coatings associated with rock art Analysis of minerals, their quantities and their chemical composition
Summary
The oxalate mineral, whewellite, is found in all mineral crusts sampled (13–26.4 wt.%), except RLL3-1-1 where it is not detected (Table 1, Supplementary Figs. 1 and 2, Supplementary Table 1). The oxalate mineral, whewellite, is found in all mineral crusts sampled (13–26.4 wt.%), except RLL3-1-1 where it is not detected Samples RLL32-B-S1 to RLL32-B-S4, RLL3-1-2 and RLL3-1-3 have the same mineral assemblage: whewellite and tinsleyite, with lesser taranakite, quartz and gypsum (Table 1). Sample RLL32-B-2011 is dominated by quartz and whewellite, with a little gypsum, a 10 Å-mica and a 7.1 Å-clay. Srcrandallite or goyazite may be present at low levels (Table 1)
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