Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-23T15:39:16.341Z Has data issue: false hasContentIssue false
  • English
  • Français

An Index of Weathering for Silicate Rocks

Published online by Cambridge University Press:  01 May 2009

Andrew Parker
Andrew Parker
Affiliation:
Sedimentology Research Laboratory, The University, Reading
Get access Rights & Permissions [Opens in a new window]

Summary

An index of weathering for silicate rocks is proposed, based on the proportions of the alkali and alkaline earth metals present. These are considered to be the most mobile of the major elements. The bond strengths of the elements with oxygen are used as weighting factors in the index, which measures both the degree to which a rock has already been weathered with respect to the parent material, and also its susceptibility to further weathering.

Type
Articles
Information
Geological Magazine , Volume 107 , Issue 6 , November 1970 , pp. 501 - 504
Copyright
Copyright © Cambridge University Press 1970

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Craig, D. C. & Loughnan, F. C. 1964. Chemical and mineralogical transformations accompanying the weathering of basic volcanic rocks from New South Wales. Aust. J. Soil Sci. 2, 218–234.Google Scholar
Harriss, R. C. & Adams, J. A. S. 1966. Geochemical and mineralogical studies on the weathering of granitic rocks. Am. J. Sci., 264, 146–173.CrossRefGoogle Scholar
Hendriks, D. M. & Whittig, L. D. 1968. Andesite weathering II: Geochemical changes from andesite to saprolite. J. Soil Sci., 19, 147–153.CrossRefGoogle Scholar
Kramer, J. R. 1968. Mineral-water equilibria in silicate weathering. Int. geol. Congr., Rep. 23rd Session, Section 6, 149–160.Google Scholar
Krauskopf, K. B. 1967. Introduction to Geochemistry. McGraw-Hill, New York.Google Scholar
Nicholls, G. D. 1963. Environmental studies in sedimentary geochemistry. Sci. Prog., Lond., 51, 12–31.Google Scholar
Ruxton, B. P. 1968. Measures of the degree of chemical weathering of rocks. J. Geol., 76, 518–527.CrossRefGoogle Scholar