Substrate classifiers

editorial note <p>The data was converted from the print representation to this linked-data form by <a href=''>Linda Gregory</a> assisted by <a href=''>Simon J D Cox</a>.</p>
dcterms created equal to or less than 2021-04-07equal to or more than 2021-04-07
dcterms modified equal to or less than 2022-12-16equal to or more than 2022-12-16
dcterms description This vocabulary is a machine-readable representation of the classifiers described in chapter 9 Substrate, by R.C. McDonald and R.F. Isbell, in Australian soil and land survey field handbook (3rd edn)

This vocabulary deals with materials and masses of earth or rock that do not show pedological development. They are not soils, but typically underlie them.

This chapter deals with materials and masses of earth (see page 163) or rock that do not show pedological development. They are not soils, but typically underlie them. The substrate includes the R horizon and that part of the C horizon that shows no pedological development (page 106), but excludes the solum, buried soil horizons (including D horizons), and pans. The substrate beneath a soil profile may or may not be the parent material of the soil.

The properties of the substrate should be described as objectively as possible. The first group of properties refers to the material or substance in an intact state, as would be seen in a hand-sized specimen without cracks. Such properties serve to identify the type of rock, such as sandstone, or unconsolidated material, such as clay. A second group of properties comprising spacing of discontinuities, alteration, and mass strength refers to substrate masses. These require observations of areas of greater dimensions. Types of substrate mass are classified mainly according to their inferred origin. Examples are alluvium, parna, ferricrete and saprolite.

The substrate should be observed at the point of the soil profile observation or as close to it as may be practicable. Large vertical exposures of the substrate may reveal the spatial variation of substrate features.
dcterms title Substrate classifiers
change note
2022-07-26 - add observable-properties collection
2022-07-26 - removed dcterms:description and rdfs:label - duplicates skos:definition and skos:prefLabel
2022-07-28 - Completed the rest of the substrate chapter
2022-07-29 - replace `sosa:ObservableProperty` type on enumerations with `skos:related` link to the OP in the domain model
2022-11-23 - Rename collections for consistency with ANSIS
2022-12-07 - remove observable-properties collection
0000-0002-0693-1899 original
0000-0002-3884-3420 original
R.C. McDonald
Agent original
R.F. Isbell
Agent original
notation substrate
rights copyright CSIRO 2009, 2021. All rights reserved.
source National Committee on Soil and Terrain (2009), 'Australian soil and land survey field handbook (3rd edn).' (CSIRO Publishing: Melbourne)
Resource original
Ontology original
ConceptScheme original
imports 1.1 original
is format of 4273240 original
license 4.0 original
publisher original
see also 5230 original