Relation of the carbon/oxygen ratio in coal to igneous intrusions in the Somerset coal field, Colorado : a study of the carbon-to-oxygen ratio in coals metamorphosed to higher than normal rank by igneous plutons /
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. Govt. Print. Off. : For sale by the Supt. of Docs.,
1980.
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| Series: | Geological Survey bulletin ;
1477-A. Contributions to geochemistry. |
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