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Clay Mineralogy of the Recent and Buried Soils derived from the Pleistocene Tephras ("Loams") at the Foot of the Ashitaka Volcano, Central Japan
1971
The Quaternary Research (Daiyonki-Kenkyu)
The clay mineralogical composition of the recent and buried soils derived from the upper column of the Quaternary tephras were analysed by means of the DTA and X-ray diffraction. The uppermost humified scoriaceous soils were characterized by allophane and Al-vermiculite. No gibbsite was detected. The middle part ranging from the uppermost Pleistocene to the recent was composed of fine and coarse (scoriaceous) tephras of various petrographic compositions and humified horizons on them.
doi:10.4116/jaqua.10.69
fatcat:mfsvxxyd2vhgzgluuiig6ep7hu