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Low/medium magnifications |
Low/medium magnifications |
Very intense Illuvation in a sandy/granular horizon with carbonation.
2Btk1 Horizon of a Calcic Palexeralf. Thin section RNS19-4.
Micromorphological features
After browsing these images you should have found, at least, the following characteristics (left side image only with poloarizer, the one on the right side with crossed nicols).
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| dense infillings with illuvial clay with remarkable micro stratifications Ai, illuvial clay generally infilled; C, micritic carbonate |
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| dense infillings with illuvial clay with remarkable micro stratifications | |
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| Illuvial clay with high interference colors | |
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| Illuvial brown clay coated by an illuvial orange clay with a thiner texture | |
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1, illuvial brown clay; 2, illuvial orange clay; 3, illuvial yellow clay. What do these changes show? |
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| Carbonates coating the illuvial clay | Is it normal? |
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| sand grains: aQ, quartz; aOr, orthose; aPl, plagioclase; Gravels: gQ, quartzite; gOr, orthose | |
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| Biotite same size as sand | |
This soil was presented in the "XIII Reunión Nacional de Suelos" celebrated in Salamanca in 1985.
