| Abstract: | Two lignite beds, the Niobe and the Bonus, occur at strippable depths within the Niobe area. The Niobe bed averages 5 feet (1.5 meters) in thickness and the Bonus bed averages 8 feet (2.4 meters) in thickness. These beds lie in the lower part of the Sentinel Butte Member of the Fort Union Formation (Paleocene).
The demonstrated resources of both beds combined is 122 million tons (110 million tonnes), all of which are under less than 120 feet (37 meters) of overburden. The overburden consists of glacial till and shale.
The lateral continuity of the coal has been locally interrupted by faulting, glacial outwash channels, and erosion. Folding and/or faulting occurs parallel to the Missouri Coteau escarpment and faulting occurs roughly perpendicular to the escarpment. |
| Genre: | USGS Numbered Series |
| ProdID: | 24114 |
| Citation Author: | Owen, Hal E. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | i, 10 leaves :ill., maps ;28 cm. in folder 25 x 30 cm. |
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| Citation Publisher: | U.S. Dept. of the Interior, Geological Survey, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 77-379 |
| Citation Search Results Text: | Preliminary report on the lignite resources of the Niobe area, Burke and Ward counties, North Dakota; 1977; OFR; 77-379; Owen, Hal E. |
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| Citation Year: | 1977 |
| Type: | citation/reference |
| Text: | Preliminary report on the lignite resources of the Niobe area, Burke and Ward counties, North Dakota; 1977; OFR; 77-379; Owen, Hal E. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/of/1977/0379/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/of/1977/0379/report.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1977/0379/plate-01.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1977/0379/plate-02.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1977/0379/plate-03.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1977/0379/plate-04.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1977/0379/plate-05.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1977/0379/plate-06.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1977/0379/plate-07.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1977/0379/plate-08.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1977/0379/plate-09.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1977/0379/plate-10.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1977/0379/plate-11.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1977/0379/plate-12.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Dept. of the Interior, Geological Survey, |
