ISSN:
1437-3262
Keywords:
Evaporitic sediment
;
Mulhouse Potash Basin
;
Organic matter
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
Notes:
Abstract Evaporitic sediments from the Max borehole (Mulhouse Potash Basin, southern Rhine Graben) were studied over an interval of about 40 m in the vicinity of sylvite beds. Total organic carbon (TOC) analyses of 450 samples showed that marly layers interbedded within the evaporites have TOC values that fluctuate in a rhythmic manner; the highest values are found near the top of the clay—anhydrite layers and the lowest values are recorded near the top of the halite-rich beds. Geochemical (elemental analysis of kerogen, gas chromatography of bitumen) and palynological studies of 26 samples showed that the organic matter is mainly of algal origin (A and B groups). A third category of organic material (C group) may have been derived from a mixture of continental supply and in situ bacterial productivity.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00191498
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