Hames Sanei’s paper “Genesis of solid bitumen” was just published in Scientific Reports. Hamed Sanei describes it like this: “The paper is my attempt to paint a more complete picture of the organic carbon story through the thermal maturity. I have also tried to set the record straight on highly confused subjects of bitumen, solid bitumen, and pyrobitumen, which are all different forms of secondary organic carbon formed in the sedimentary basins.”

You can read the paper here.