Grain-size distribution of quartz and feldspar extracts and implications for flocculation processes |
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| Authors: | Rodney L Stevens |
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| Institution: | 1. Department of Geology, Chalmers University of Technology, Sweden
2. University of G?teborg, S-412 96, G?teborg, Sweden
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| Abstract: | Quartz and feldspar extracts, obtained by chemical dissolution of the clay minerals, provide insight into the inorganic flocculation
and mineralogical influences upon the texture of fine-grained glaciomarine deposits. Glacial comminution in higher latitudes
explains the relatively high contents of quartz and feldspars. Quartz and feldspar are better sorted and were apparently less
influenced by flocculation than were phyllosilicates, except for particles less than approximately 16 μm, which are poorly
sorted due to their inclusion in flocs. The 16-μm boundary is suggested to be useful for approximately separating fines that
are usually involved in flocculation and coarse silt and larger grains that are less influenced. |
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