ASLS Substrate classifiers

Grain size - enumeration

http://anzsoil.org/def/au/asls/substrate/Substrate-grain-size

identifier http://anzsoil.org/def/au/asls/substrate/Substrate-grain-size
definition It is informative to estimate the size of the most common particles of a substrate material whether the material is thought to be of sedimentary, metamorphic or igneous origin.
note * As shown by Figure 15, page 116, these size grade limits agree with the scale of Wentworth (1922), adopted by the United States National Research Council (Pettijohn 1957) and the American Geophysical Union (Lane et al. 1947), and with that of the Massachusetts Institute of Technology, also adopted by the British Standards Institution (1975) and the Standards Association of Australia (1977). The 0.06 mm boundary criterion (strictly 0.063 mm) separating sand and silt differs markedly from the value 0.02 mm of the International Scheme (proposed originally by Atterberg (1905) and accepted by the International Society of Soil Science); the 0.05 mm value of the United States Department of Agriculture (Soil Survey Staff 1975); and the 0.075 mm value of the Unified Soil Classification (Anon. 1953).
member
http://anzsoil.org/def/au/asls/substrate/grain-size-1 original
type
Substrate-grain-size
http://anzsoil.org/def/au/asls/substrate/grain-size-2 original
type
Substrate-grain-size
http://anzsoil.org/def/au/asls/substrate/grain-size-3 original
type
Substrate-grain-size
sub class of
Substrate-grain-size original
Resource original
Concept original
type
Class original
Resource original
Class original
Collection original