CHARACTERISATION OF EPEIRIC "LAYER-CAKE" CARBONATE RESERVOIRS: UPPER MUSCHELKALK (MIDDLE TRIASSIC), THE NETHERLANDS

2005 ◽  
Vol 28 (2) ◽  
pp. 119-146 ◽  
Author(s):  
R. Borkhataria ◽  
T. Aigner ◽  
M. C. Poppelreiter ◽  
J. C. P. Pipping
Keyword(s):  
The Netherlands ◽  
Middle Triassic ◽  
Carbonate Reservoirs ◽  
Layer Cake ◽  
Upper Muschelkalk

scholarly journals A tetrapod swimming traceway from the Triassic of Winterswijk, the Netherlands

2017 ◽  
Vol 96 (3) ◽  
pp. 273-277 ◽  
Author(s):  
Anne S. Schulp ◽  
Remco W. Bleeker ◽  
Adam Haarhuis ◽  
Edwin van Spronsen ◽  
Melanie A. D. During ◽  
...  
Keyword(s):  
The Netherlands ◽  
Middle Triassic ◽  
Lateral Current ◽  
The Asymmetry ◽  
East West

AbstractWe describe a tetrapod swimming traceway from the Middle Triassic Vossenveld Formation of the Netherlands. Forty-five individual traces, each consisting of two parallel claw drag marks, were followed over 9 m in a roughly east–west direction. The asymmetry of the traceway geometry indicates the trace maker negotiated a lateral current. The trace maker could not be identified, but the traces described here are markedly different fromDikoposichnustraces attributed to swimming nothosaurs.

Syzygial brachials from the upper Muschelkalk (Middle Triassic, Ladinian) of Poland and their implication for an early origin of comatulid crinoids

2008 ◽  
Vol 82 (3) ◽  
pp. 634-637 ◽  
Author(s):  
Mariusz A. Salamon ◽  
Michat Zatoń ◽  
Przemysław Gorzelak
Keyword(s):  
Middle Triassic ◽  
Upper Muschelkalk ◽  
Early Origin ◽  
Irregular Arrangement

According to Ubaghs (1978), syzygies are brachial articulations in which radiating ridges and furrows on the two joint faces oppose each other rather than interlock as in symplexies. Cryptosyzygies differ from syzygies by having very short ridges that may be replaced by rows of tubercles or granules, with a tendency toward irregular arrangement and disappearance. Among Triassic crinoids, only representatives of the orders Isocrinida Sieverts-Doreck, 1952 and Comatulida Clark, 1908 had cryptosyzygial or syzygial brachial articulation, respectively. According to Rasmussen (1978), among Isocrinidae the articulations of primibrachial 1 and 2 and secundibrachial 1 and 2 were cryptosyzygial or synarthrial (but see also comments in Simms, 1988a). Among Comatulida, syzygial articulations generally occur between brachials 3 and 4 and in more distal arm parts.

FT-IR and Raman microscopic study at 293 K and 77 K of celestine, SrS04, from the middle triassic limestone (Muschelkalk) in Winterswijk, The Netherlands

2001 ◽  
Vol 80 (2) ◽  
pp. 41-47 ◽  
Author(s):  
J. Theo Kloprogge ◽  
Huada Ruan ◽  
Loc V. Duong ◽  
Ray L. Frost
Keyword(s):  
Absorption Spectrum ◽  
Infrared Spectroscopy ◽  
Raman Spectrum ◽  
The Netherlands ◽  
Middle Triassic ◽  
Infrared Absorption Spectrum ◽  
Raman And Infrared Spectroscopy ◽  
Ft Ir ◽  
A Minor ◽  
Ir And Raman

AbstractThis paper describes the Raman and infrared spectroscopy of SrSO4 or celestine from the Muschelkalk of Winterswijk, The Netherlands. The infrared absorption spectrum is characterised by the SO42-modes V1 at 991 cm-1, v3 at 1201, 1138 and 1091 cm-1, and v4 at 643 and 611 cm-1. An unidentified band is observed at 1248 cm-1. In the Raman spectrum at 293 K the V1 mode is found at 1000 cm-1 and is split in two bands at 1001 and 1003 cm-1 upon cooling to 77 K.The v2 mode, not observed in the infrared spectrum, is observed as a doublet at 460 and 453 cm-1. The v3 mode is represented by four bands in the Raman spectrum at 1187, 1158, 1110 and 1093 cm-1 and the v4 mode as three bands at 656, 638 and 620 cm-1. Cooling to 77 K results in a general decrease in bandwidth and a minor shift in frequencies. A decrease in intensities is observed upon cooling to 77 K due to movement of the Sr atom towards one or more of the oxygen atoms in the sulfate group.

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