scholarly journals A reappraisal of the stratigraphy of the upper Miocene unit X in the Maaseik core, eastern Campine area (northern Belgium)

2020 ◽  
Vol 23 (3-4) ◽  
Author(s):  
Stephen LOUWYE ◽  
Noël VANDENBERGHE
Keyword(s):  
Basal Part ◽  
Dinoflagellate Cysts ◽  
Shallow Marine ◽  
Rhine Basin ◽  
Roer Valley Graben ◽  
Paleoenvironmental Interpretation ◽  
Lower Rhine Basin ◽  
Upper Tortonian ◽  
Late Tortonian ◽  
Lower Rhine

The stratigraphy of the Tortonian-Messinian sequence from the Maaseik core, located on the shoulder of the Roer Valley Graben (RVG) in the eastern Campine area in northern Belgium, was improved. The analysis of the marine palynomorphs (dinoflagellate cysts and acritarchs) from the uppermost part of the Breda Formation, the unnamed unit X and the basal part of the Lower Waubach Member led to the recognition of the mid to upper Tortonian Hystrichosphaeropsis obscura biozone. Therefore deposition of this entire analyzed sequence took place sometime between 8.8 to 7.6 Ma. Paleoenvironmental interpretation of the palynomorphs points to shallow marine conditions and most probably a stressed environment during the deposition of unit X. A comparison with the time equivalent stratigraphy in the nearby Belgian Campine, the Dutch RVG and the German Lower Rhine Basin allowed the identification of the Inden Formation and required a shift in the base of the Kieseloolite Formation compared to the earlier lithostratigraphic interpretation of the Maaseik core. The regional stratigraphic scheme shows the progressive northwestward extension of the river facies from the Lower Rhine during the late Tortonian.

scholarly journals Facies analysis and depositional model of the Serravallian-age Neurath Sand, Lower Rhine Basin (W Germany)

2017 ◽  
Vol 96 (3) ◽  
pp. 211-231 ◽  
Author(s):  
L. Prinz ◽  
A. Schäfer ◽  
T. McCann ◽  
T. Utescher ◽  
P. Lokay ◽  
...  
Keyword(s):  
Detailed Examination ◽  
High Energy ◽  
Swash Zone ◽  
Shallow Marine ◽  
Rhine Basin ◽  
Regional Correlation ◽  
Late Middle Miocene ◽  
Lower Rhine Basin ◽  
Depositional Setting ◽  
Lower Rhine

AbstractThe up to 60 m thick Neurath Sand (Serravallian, late middle Miocene) is one of several marine sands in the Lower Rhine Basin which were deposited as a result of North Sea transgressive activity in Cenozoic times. The shallow-marine Neurath Sand is well exposed in the Garzweiler open-cast mine, which is located in the centre of the Lower Rhine Basin. Detailed examination of three sediment profiles extending from the underlying Frimmersdorf Seam via the Neurath Sand and through to the overlying Garzweiler Seam, integrating both sedimentological and palaeontological data, has enabled the depositional setting of the area to be reconstructed.Six subenvironments are recognised in the Neurath Sand, commencing with the upper shoreface (1) sediments characterised by glauconite-rich sands and an extensive biota (Ophiomorphaichnosp.). These are associated with the silt-rich sands of a transitional subenvironment (2), containingSkolithos linearis, Planolitesichnosp. andTeichichnusichnosp. These silt-rich sands grade up to the upper shoreface subenvironment (1), which is indicative of an initial regressive trend. The overlying intertidal deposits can be subdivided into a lower breaker zone (3), characterised by ridge-and-runnel systems, and the swash zone (4) where the surge and backwash of waves resulted in the deposition of high-energy laminites. The intertidal deposits were capped by aeolian backshore sediments (5). Extensive root traces present in this latter subenvironment reflect the development of the overlying peatland (i.e. Garzweiler Seam). Within the Garzweiler Seam, restricted sand lenses indicate a lagoonal or estuarine depositional environment (6). Regional correlation with adjacent wells establishes that shallow-marine conditions were widespread across the Lower Rhine Basin in middle Serravallian times. The shoreline profile, characterised by both tidal and wave activity and influenced by fluvial input from the adjacent Rhenish Massif, is indicative of the complexity of the coastal depositional setting within the Lower Rhine Basin.

scholarly journals Facies interpretation from well logs applied to the Tertiary Lower Rhine Basin fill

2002 ◽  
Vol 81 (2) ◽  
pp. 167-176 ◽  
Author(s):  
M. Klett ◽  
F. Eichhorst ◽  
A. Schäfer
Keyword(s):  
Shallow Marine ◽  
Rhine Basin ◽  
Base Level ◽  
Geophysical Logs ◽  
Lignite Coal ◽  
Lower Rhine Basin ◽  
Well Data ◽  
Open Cast ◽  
Level Analysis ◽  
Lower Rhine

AbstractThe Cenozoic fill of the Lower Rhine Basin is investigated with data from industry wells and open-cast mines on lignite coal. The geophysical logs of digitised well data are used to calculate lithofacies logs with a newly developed technique. The lithofacies logs allow the interpretation of shallow marine and continental environments in a sequence stratigraphie approach. In addition, base level analysis with both the lithofacies logs and the geophysical logs provide a stratigraphical frame for environment interpretation, modelling, and simulation.

Anatomy of a channel-bank collapse structure in Tertiary fluvio-lacustrine sediments of the Lower Rhine Basin, Germany

1990 ◽  
Vol 127 (5) ◽  
pp. 445-451 ◽  
Author(s):  
H. Williams ◽  
S. Flint
Keyword(s):  
Coastal Plain ◽  
Lacustrine Sediments ◽  
General Application ◽  
Rhine Basin ◽  
Deformation Feature ◽  
Multi Stage ◽  
Failure Event ◽  
Lower Rhine Basin ◽  
Bank Collapse ◽  
Lower Rhine

AbstractAn exceptionally well-preserved synsedimentary deformation feature is described from uppermost Miocene fluvio-lacustrine coastal plain sediments, exposed in lignite mines of the Lower Rhine Basin, Germany. The feature is interpreted as a complex, multi-stage channel-bank collapse structure. Rotational slumping of bank material into the channel along two failure surfaces extending below the channel toe generated a series ofminor compressional ‘thrust/backthrust’ structures within the muddy channel-fill sediments. A reconstruction of the failure event is proposed which is linked toa lowering of river stage and subsequent channel abandonment. The accurate description of this unusually well-preserved channel-bank collapse structure may have general application in the interpretation of similar, but less-well-exposed-preserved phenomena elsewhere.

Iron porphyrins in the Permian Kupferschiefer of the lower Rhine Basin, N.W. Germany

1989 ◽  
Vol 14 (6) ◽  
pp. 659-666 ◽  
Author(s):  
C.B. Eckardt ◽  
M. Wolf ◽  
J.R. Maxwell
Keyword(s):  
Iron Porphyrins ◽  
Rhine Basin ◽  
Lower Rhine Basin ◽  
Lower Rhine

Miocene depositional environment and climate in western Europe: The lignite deposits of the Lower Rhine Basin, Germany

2016 ◽  
Vol 157 ◽  
pp. 2-18 ◽  
Author(s):  
Alexander T. Stock ◽  
Ralf Littke ◽  
Andreas Lücke ◽  
Laura Zieger ◽  
Thomas Thielemann
Keyword(s):  
Western Europe ◽  
Depositional Environment ◽  
Rhine Basin ◽  
Lower Rhine Basin ◽  
Lignite Deposits ◽  
Lower Rhine
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