Porphyrin analysis and coal rank—Porphyrin index of Coalification for bituminous coals
- 20 August 1991
- journal article
- Published by Elsevier in Chemical Geology
- Vol. 91 (2) , 193-206
- https://doi.org/10.1016/0009-2541(91)90091-5
Abstract
No abstract availableKeywords
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