Origin of the boghead coals
Professional Paper
132-I
By: Reinhardt Thiessen
Links
- Document: Report
- Download citation as: RIS | Dublin Core
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.
| 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 |