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Outcrop of Ordovician oil shale (kukersite), northern Estonia
Outcrop of Ordovician oil shale (kukersite), northern Estonia
Photomicrographs showing a cannel coal (top) 100% organic matrix and a rich oil shale (bottom) with relatively low mineral content
Photomicrographs showing a cannel coal (top) 100% organic matrix and a rich oil shale (bottom) with relatively low mineral content
Fossils in Ordovician oil shale (kukersite), northern Estonia
Fossils in Ordovician oil shale (kukersite), northern Estonia
Autun oil shale mines
Autun oil shale mines
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Kerogen can be found in oil shale
Kerogen can be found in oil shale