Green River Shale

40% organic matter; C 64.5%; H 8.5%; 0 6.8%; N 2.3% Wyoming, USA

suspension in methanol; 20 yg standard

REMARKS - The pyrolysis pattern of this shale is almost identical to that of the Coolaway Torbanite (Spectrum F.9). Apparently the lacustrine origin of both samples prevails over differences in age, etc. Also, this confirms the dominantly algal origin of the organic matter in Green River shale. Note, however, the much higher intensity of the sulphur-containing products at m/z 34, 48 and 64 compared to Torbanite (Spectrum F.9).

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