palaeosolpaleosoln.
/ˈpalɪə(ʊ)sɒl/, /ˈpeɪlɪə(ʊ)sɒl/, U.S. /ˈpeɪlioʊˌsɔl/, /ˈpeɪlioʊˌsɑl/ Geology.
A soil horizon or rock which was formed as a soil at some time in the past.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > earth or soil > [noun] > horizon > specific horizons
solum1928
recurrence surface1938
palaeosol1950
palaeosoil1970
1950 C. B. Hunt & V. P. Sokoloff in Prof. Papers U.S. Geol. Surv. No. 221. 109/1 An ancient soil, hereafter referred to as paleosol, has been dated..as pre-Wisconsin in the Lake Bonneville and Denver basins.
1985 Antiquaries Jrnl. June 281 This buried palaeosol is almost intact and appears to have been protected from erosion.
1995 Discover Dec. 32/3 Buick believes he can even see a pale layer of fossilized soil, or paleosol, peeping out from between the layers of rock covering his unconformity.
This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022).
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n.1950