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Fragipan Horizons and Be Masses in the Middle Coastal Plain of North Central North Carolina
Author(s) -
Steele Forrest,
Daniels R. B.,
Gamble E. E.,
Nelson L. A.
Publication year - 1969
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1969.03615995003300050036x
Subject(s) - geology , cementation (geology) , new horizons , coastal plain , geochemistry , horizon , merge (version control) , geomorphology , archaeology , paleontology , geography , cement , geometry , mathematics , aerospace engineering , computer science , engineering , spacecraft , information retrieval
Soils with fragipan horizons are minor in areal extent but soils with friable eluviated (Be) masses are common along the 120‐ and 140‐foot contours (37‐ to 43‐m) of the Sunderland geomorphic surface between Goldsboro, N. C., and Emporia, Va. Where they occur, fragipan horizons commonly have Be masses, and in some the dense brittle materials and friable eluviated materials are intimately mixed. The morphology of fragipan horizons and horizons with Be masses are similar and it is difficult to separate them where they merge on the landscape. Brittleness is about the only feature that can be used consistently to separate fragipan horizons and horizons with Be masses. Brittleness that is produced by partial iron cementation, plinthite for example, should not be used in identification of fragipan horizons.