Kerogen in the Chattanooga Shale

See allHide authors and affiliations

Science  20 Jul 1962:
Vol. 137, Issue 3525, pp. 221-224
DOI: 10.1126/science.137.3525.221


The Chattanooga shale contains insoluble organic matter (kerogen) derived from terrestrial (humic) and from marine (sapropelic) sources. Kerogen from sapropelic sources contains more hydrogen than kerogen from humic sources. Thus the hydrogen content of the sapropelic contribution, and of the kerogen, increases toward that part of a shale most likely to be a source bed for petroleum. Uranium in the shale is derived from the adjoining land mass.