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Kaolinite, Opal-CT, and Clinoptilolite in Altered Tuffs Interbedded with Lignite in the Jackson Group, Texas
Clinoptilolite Kaolinite Lignite Marcasite Opal-CT Plant roots Pyrite Silication Zeolite
2012/1/11
The mineralogy of partially kaolinized strata interbedded with lignite at the San Miguel mine, Atascosa County, Texas, was investigated by X-ray powder diffraction and optical and scanning electron mi...
Mineralogical Transformations during Weathering of Lignite Overburden in East Texas
Lignite Oxidation Reclamation Smectite Soil Weathering
2011/11/25
Abstract: Mineralogical weathering sequences in sediments overlying lignite beds were investigated in a core (27 m deep) from Calvert, Robertson County, northeast Texas. Weathering trends were evaluat...