Scanning electron microscopy of pulverulite in the Silurian Lockport Dolomite near Rocky Ridge, OH

• Autores: Charles F. Kahle
• Localización: Carbonates and Evaporites, ISSN 0891-2556, Vol. 27, Nº. 1, 2012, págs. 3-8
• Idioma: inglés
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• Resumen

  • Pulverulite, a soft, porous, and crumbly rock, is present in the Silurian Lockport Dolomite at a quarry near Rocky Ridge, OH. The great majority of the pulverulite forms bedding-perpendicular pipes. The most common characteristic of the pulverulite, as seen using scanning electron microscopy, is a series of rounded to subrounded masses of dolomite 5-20 µm in diameter. The author interprets that the pulverulite resulted from the downward percolation of very acidic groundwater, that resulted from chemical reactions involving tree roots and groundwater.