|LC control no.||sh 86003920
|Topical heading||Formations (Geology)
|See also||Geology, Stratigraphic
|Found in||Work cat.: Andrews, G.W. Miocene diatoms from the Hawthorn Formation ... 1985.
Gloss. geol. ((a) A body of rock strata of intermediate rank in the hierarchy of lithostratigraphic units, which is unified with respect to adjacent strata by consisting dominantly of a certain lithologic type or combination of types or by possessing other unifying lithologic features.)
Georef. thes., 1981 (Formations, iron)
Challinor, J. Dicty. geol., 1978 (expresses in geology any assemblage of rocks which have some character in common, whether of origin, age, or composition)
Geosaurus, 1979: p. 134.
INIS (Geologic formations)