Abstract
A stepped combustion method was tested as a possible technique for the resolution of isotopically distinct carbon components of complex organic matter such as kerogen. A modified procedure was designed to test for completeness of reaction at a low combustion T (225 degrees C). The carbon fractions released at 225 and 500 degrees C, respectively, were isotopically relatable to the chemical alteration of the organic material which occurred during the analytical process, not to different components in the original materials.