ISSN:
1437-3262
Schlagwort(e):
Evaporitic sediment
;
Mulhouse Potash Basin
;
Organic matter
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Geologie und Paläontologie
Notizen:
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.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00191498
Permalink