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Domain for roundness DESCRIPTION of RESULT entity
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References |
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AS 1726-1993 1993, Geotechnical site investigations. Standard
Australia
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ASTM D 2488-93 1993, Standard practice for description and identification
of soils (visual-manual procedure). American Society for Testing
and Materials
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Berkman, D.A. 1995, Field Geologists' Manual, 3rd edn., Monograph
Series No. 9, Australasian Institute of Mining and Metallurgy, 390p.
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Jackson, J.A. (ed.) 1997, Glossary of Geology, 4th edn., American
Geological Institute, Virginia, 769p
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Ryburn, R.J., Bond, L.D. & Hazell, M.S. 1995, Guide to OZROX
AGSO's Field Geology Database, AGSO Record 1995/79, Australian
Geological Survey Organisation, Canberra.
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Qualifier 1:
minimum roundness value |
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Qualifier 2:
maximum roundness value |
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Note:
|
|
Attribute |
Code |
Parent |
Category |
Synonyms |
Description |
Qualifier 1 |
Qualifier 2 |
|
roundness |
VA |
|
very angular |
|
particles have very sharp edges and relatively plane sides with unpolished
surfaces |
0.12 |
0.17 |
|
roundness |
SAN |
|
sub-angular |
|
particles are similar to angular description but have rounded edges |
0.15 |
0.25 |
|
roundness |
ANG |
|
angular |
|
particles have sharp edges and relatively plane sides with unpolished
surfaces |
0.17 |
0.25 |
|
roundness |
SR |
|
sub-rounded |
|
particles have nearly plane sides but have well rounded corners and
edges |
0.25 |
0.4 |
|
roundness |
RO |
|
rounded |
|
particles have smoothly curved sides and no edges |
0.4 |
0.6 |
|
roundness |
WR |
|
well-rounded |
|
particles have surfaces consisting of broad curves without any flat
areas |
0.6 |
1 |
|
roundness |
UNK |
|
unknown |
|
roundness of particles is unknown |
0 |
1 |
