| Popis: |
Ba Mieu and Đat Cuoc sedimentary formation cover fully in Suoi Ngo – Tan Hoa area. In that, Ba Mieu formation is the main formation which contents of kaolin and is covered by Đat Cuoc formation on the Northwest. Ore bed of kaolin often meets sheeted form. They extend on Northwest-Southeast, average thickness is 5.94 meter. Main mineral are kaolinite (average 44.2%), less illite (average 11.75%), monmorillonite (2,20%). Kaolin has still a lot of quart (27,75%), feldspar (average 5,25%), chlorite (3,0%). Chemical element of kaolin, sieved by 0.1 mm sieve, are Al2O3 17,96% (Tan Hoa) - 22,49% (Suoi Ngo); Fe2O3 1,08% (Tan Hoa) - 1,13% (Suoi Ngo). Grain |
