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18:0418:04, 19 April 2007 diff hist 3,246 N Fragipan ←Created page with 'A fragipan is a diagnostic horizon in USDA soil taxonomy. They are altered sursurface soil layers that restrict water flow and root penetration. Fragipans are...'
16:0116:01, 19 April 2007 diff hist 27 Petrocalcic horizon No edit summary
15:5815:58, 19 April 2007 diff hist 8 Petrocalcic horizon No edit summary
15:5415:54, 19 April 2007 diff hist 2,654 N Petrocalcic horizon ←Created page with 'A Petrocalcic horizon is a diagnostic horizon in USDA Soil Taxonomy. They are formed when secondary Calcium Carbonates or other carbonates accummulate in t...'
15:0115:01, 19 April 2007 diff hist 0 m Duripan →See Also
15:0115:01, 19 April 2007 diff hist 18 Duripan →See Also
15:0015:00, 19 April 2007 diff hist 4,291 N Duripan ←Created page with 'A duripan is a diagnostic soil horizon that is cemented by illuvial silica into a subsurface hardpan. It is similar to fragipans, [[petrocalcic horizon...'