The types of degradation found in the pictorial layer are described below, including studies of appearance, colour, elemental and molecular analysis.
Sequel to field identification and description of the diagnostic horizons, the palaeosols were analysed using routine laboratory procedures for properties including particle size distribution, pH, calcium carbonate content, colour, elemental geochemistry, clay mineralogy and micromorphology for detailed characterisation and classification.
The aim was to develop elemental judgment distinguishing form, colour, separation and association, grouping, matching, and so on.
The particles also included green, blue and purple spheres, which had a similar size, shape, colour and elemental composition as microbeads from facial cleansers analysed by Eriksen et al. [41].
In a 1947 poster promoting New York subway advertising, for example, Rand created a design from elemental geometric forms and colours that can be read as both an abstracted figure as well as a target, conveying the concept that one can "hit the bull's-eye," or reach potential audiences for plays, stores, and other goods and services by advertising in the subway.
Instead of a depiction of San Francisco's famous fog, this was a celebration of dazzling Californian light and colour, at once elemental and playful.
Maximum elemental concentration represented with greatest colour intensity, minimum concentration as black.
