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Thilo Bechstädt (Info)
Rainer Zühlke (Info)
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+49 6221 54-8292
+49 6221 54-6055
Fax
+49 6221 54-5503
Thilo Bechstädt (Info)
Rainer Zühlke (Info)
Phone
+49 6221 54-8292
+49 6221 54-6055
Fax
+49 6221 54-5503
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Neoproterozoic Glaciations and Infracambrian HC Systems |
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| Abstract | ||
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| Scientists Hartmut Jäger, GeoResources and University of Heidelberg Thilo Bechstädt, GeoResources and University of Heidelberg |
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| Abstract Organofacies is studied in pre- to postglacial deposits of the "Marinoan" glacial event in northern Namibia as an analogue for hydrocarbon source rock potential of Infracambrian Petroleum Systems. Repeated tensional activity on the shelf of the southern margin of the Congo craton created different subbbasins before, during and after the ‘Marinoan’ glaciation. Due to postglacial sea-level rise the newly formed relief was flooded and the different subbasins were affected by restricted circulation. This partly led to deposition of organic-rich shales and limestones. Palaeotopography strongly influenced the petroleum system created and played an important role for the hydrocarbon prospectivity of the postglacial succession. Our scenario proposes a petroleum system positive for organic preservation and source rock generation. Studying the whole pre- to postglacial succession enables the comparison of hydrocarbon source rock characteristics and prospectivity of pre- and postglacial Neoproterozoic petroleum systems. The post-glacial formation of source rocks in the Neoproterozoic of northern Namibia shows some similarities to the late Ordovician-early Silurian post-glacial source rock depositional system in northern Africa. The thick carbonate sucessions in northern Namibia might represent an outcrop analogue for other Infracambrian petroleum systems like Neoproterozoic postglacial transgressive sedimentary successions in Oman, which are of special economic interest.. |
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| Presentations & Publications Glaciogenic Reservoirs and Hydrocarbon Systems Conference, Geological Society London 2009 |
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| Funding Organizations GeoResources, Heidelberg |
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