Date of Award
Bachelor of Science (BS)
Mr. Nicholas N. Kohanowski
Humic acid is a possible cause of the staining found in many sands has been seemingly overlooked in the past. It is a definite cause, and very probably to a much greater extent than realized.
Two samples from the Browns Park Formation appear naturally brown in color, but are in reality near white. The brown color is a result of staining due mostly to humic acid and to a lesser extent by a small amount of petroleum present.
Garske, Jay, "The Nature of Some Bituminous Sands from Moffat County, Colorado" (1957). Undergraduate Theses and Senior Projects. 17.