Distribution of magnetite, carbonates, illite, kaolinite/chlorite, quartz, and feldspars in grain size fractions of the Wisconsin age, Gahanna drift, Gahanna, Ohio
Creators:Mazza, Sandra Marie
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Publisher:The Ohio State University
Series/Report no.:The Ohio State University. Department of Geology and Mineralogy Senior Theses; 1983
Removal of magnetite, from suspended clay size till and from coarse till grains, with a hand held magnet was used to determine the concentration and distribution of magnetite in mesh size fractions of three tills at Gahanna, Ohio. Concentration and distribution of magnetite may be used to characterize till layers and correlate them regionally. Carbonate concentration and distribution were determined by leaching with 2N HCl. X-ray diffraction data for illite, kaolinite/chlorite, quartz, and feldspar was used to further characterize lithologies of the three tills. Distribution of magnetite, illite, and kaolinite/chlorite in grain sizes was used to confirm the lack of weathering in the Gahanna, Ohio tills.