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Long-range, high-resolution stratigraphic correlation of Rotliegend fluvial-fan deposits in the central Dutch offshore
De Jong, M.G.G.; Donselaar, M.E.; Boerboom, H.T.W.; Van Toorenenburg, K.A.; Weltje, G.J.; Van Borren, L. (2020). Long-range, high-resolution stratigraphic correlation of Rotliegend fluvial-fan deposits in the central Dutch offshore. Mar. Pet. Geol. 119: 104482. https://hdl.handle.net/10.1016/j.marpetgeo.2020.104482
In: Marine and Petroleum Geology. Elsevier: Guildford. ISSN 0264-8172; e-ISSN 1873-4073, meer
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| Author keywords |
Endorheic basin; GR pattern matching; Spectral trend analysis; Floodingsurfaces; Lateral facies changes; Amalgamated alluvial ridges |
| Auteurs | | Top |
- De Jong, M.G.G.
- Donselaar, M.E., meer
- Boerboom, H.T.W.
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- Van Toorenenburg, K.A.
- Weltje, G.J., meer
- Van Borren, L.
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| Abstract |
The Rotliegend feather-edge area in the central part of the endorheic Southern Permian Basin in the Dutch offshore is characterized by a predominance of mud-prone, evaporite-bearing playa and lake deposits with a subordinate amount of interbedded, thin, fluvial sheet sandstones. The distribution and lateral facies changes of the sandstone bodies have been analyzed by generating a long-range, high-resolution chronostratigraphic correlation framework. The correlation technique of pattern matching of GR logs was applied, supported by calculating spectral trend curves. Flooding events are the primary near-synchronous correlation surfaces, which can be traced up to and over 100 km. The basin setting of the Southern Permian Basin, the studied sandstone depositional architecture (logs) and sedimentary characteristics (core) are analogous to the depositional setting of laterally-amalgamated terminal lobes of dryland-river systems in an endorheic basin, such as the Holocene Altiplano Basin in Bolivia, present-day Lake Eyre (Australia) and the Miocene Ebro Basin (Spain). The integrated approach has yielded a stratigraphic reservoir-architecture framework in which the reservoir sandstones, with net sand up to 10 m, have been identified as amalgamated terminal-splay sandstone sheets formed at the end of dryland-river pathways, alternating with lacustrine mudstone layers deposited during short-duration, high-magnitude flooding in intermittent wet climate periods. |
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