Geochemical and mineralogical studies on the weathering of granitic rocks

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ID: 293545
1966
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Abstract
Chemical, mineralogical, and autoradiographic techniques applied to the study of five weathering profiles developed on granitic rocks of Oklahoma and Georgia indicate that mineral stabilities generally follow the expected sequence: plagioclase, biotite, K-spar, quartz, from least to most stable respectively. Kaolinite is the dominant clay mineral in the Georgia profile; both illite and kaolinite are major constituents in the Oklahoma profiles. Stability diagrams indicate that the Georgia surface waters are in equilibrium with kaolinite and the Oklahoma surface waters are in equilibrium with kaolinite and montmorillonite, but not illite. The largest physical and chemical changes occur in the transition from the C- to the B-horizon. Ca and Na are mobilized in the early stages of weathering, whereas K and Rb are concentrated in the relatively stable K-spar
Reference Key
openalex_W1968925380 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Robert C. Harriss, J. A. S. Adams
Journal american journal of science
Year 1966
DOI
10.2475/ajs.264.2.146
URL
https://doi.org/10.2475/ajs.264.2.146
Keywords Keywords not found

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