Origin of the boghead coals
Professional Paper
132-I
By: Reinhardt Thiessen
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Abstract
The bituminous rocks of sedimentary origin may be classified roughly under two main heads - coals and bituminous shales. In a strict sense no definite line can be drawn between these two groups, because coals may be insensibly grade into bituminous shales. Chemically the boghead coals are preeminently bituminous.
Suggested Citation
Thiessen, R., 1925, Origin of the boghead coals: U.S. Geological Survey Professional Paper 132, 17 p., https://doi.org/10.3133/pp132I.
ISSN: 2330-7102 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Origin of the boghead coals |
| Series title | Professional Paper |
| Series number | 132 |
| Chapter | I |
| DOI | 10.3133/pp132I |
| Year Published | 1925 |
| Language | English |
| Description | 17 p. |
| Larger Work Type | Report |
| Larger Work Subtype | USGS Numbered Series |
| Larger Work Title | Shorter Contributions to General Geology, 1923-24 |
| First page | 121 |
| Last page | 137 |
| Country | United States |