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.
","abstract_html":"<p>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. </p><p>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. </p>","abstract_has_math":false,"creators":["Garske, Jay"],"institution":null,"degree_name":"Bachelor of Science (BS)","degree_level":"Thesis","degree_discipline":"Geology","degree_department":null,"school":null,"contributors":["Mr. Nicholas N. Kohanowski"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1957,"date_issued":"1957-01-01T08:00:00Z","date_published":"1957-01-01T08:00:00Z","updated_at":"2026-07-24T03:24:58Z","subjects":[],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://commons.und.edu/senior-projects/17","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Mr. Nicholas N. Kohanowski"]},{"key":"dc:creator","label":"Author","values":["Garske, Jay"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Geology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Bachelor of Science (BS)"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://commons.und.edu/senior-projects/17"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["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.
"]},{"key":"dc:title","label":"Title","values":["The Nature of Some Bituminous Sands from Moffat County, Colorado"]}]}],"canonical_facts":{"dc:contributor":["Mr. Nicholas N. Kohanowski"],"dc:creator":["Garske, Jay"],"dc:description.abstract":["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.
"],"dc:identifier":["https://commons.und.edu/senior-projects/17"],"dc:title":["The Nature of Some Bituminous Sands from Moffat County, Colorado"],"thesis:degree_discipline":["Geology"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Bachelor of Science (BS)"]},"updated_at":"2026-07-24T03:24:58Z"}