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SOILS OF THE ULTRA‐BASIC ROCKS OF THE ISLAND OF RHUM
Author(s) -
RAGG J. M.,
BALL D. F.
Publication year - 1964
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1964.tb00252.x
Subject(s) - podzol , outcrop , geology , erosion , peat , geochemistry , horizon , earth science , period (music) , igneous rock , soil water , deposition (geology) , physical geography , geomorphology , soil science , archaeology , geography , physics , astronomy , sediment , acoustics
Summary Ultra‐basic and basic igneous rocks outcrop as a complex over about 20 square miles of the island of Rhum, off the west coast of Scotland. Here in a cool wet oceanic climate, where the annual rainfall varies from 55 to 130 inches, there has developed a sequence of soils from rankers to peat podzols or braunerden. The development is not a simple time relationship at a particular site because of the existence of a complex erosion, transport, and deposition cycle. There is evidence for a previous long stable period succeeded by more intense erosion, possibly ascribable to past land‐use. The podzols differ from typical podzols in having no AB horizon, high pH values, and high contents of exchangeable cations, especially magnesium.