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Abstract

 

This article in SSSAJ

  1. Vol. 21 No. 4, p. 420-424
     
    Received: Oct 9, 1956
    Accepted: Apr 4, 1957


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doi:10.2136/sssaj1957.03615995002100040017x

Morphology and Genesis of Calcisols1

  1. W. G. Harper2

Abstract

Abstract

This paper outlines principal characteristics of a group of soils that occur mainly in the arid and semi-arid regions. They have been derived from parent materials high in calcium carbonate. An outstanding characteristic of these soils is a prominent horizon of calcium carbonate accumulation at or near the depth of rainfall penetration. The term Calcisols is proposed for this group of soils. Field descriptions and laboratory data are presented for Calcisols and some closely related types. Genetic processes in the formation of the soils are discussed, especially the apparent effects of calcium carbonate in retarding weathering processes and precluding the formation of silicate clay minerals.

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