New geological data (Middle Triassic, Rhaetian-Liassic and oligocene) of the Winterswijk Quarry, the eastern Netherlands

被引:15
|
作者
Herngreen, GFW
van Konijnenburg-van Cittert, JHA
Oosterink, HW
机构
[1] Univ Utrecht, Palaeobot & Palynol Lab, NL-3584 CD Utrecht, Netherlands
[2] Natl Museum Nat Hist, NL-2300 RA Leiden, Netherlands
来源
NETHERLANDS JOURNAL OF GEOSCIENCES-GEOLOGIE EN MIJNBOUW | 2005年 / 84卷 / 04期
关键词
eastern Netherlands; Muschelkalk; Rhaetian; liassic; oligocene; subrosion;
D O I
10.1017/S0016774600021223
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
The present publication deals with recent palynological results of a relatively small interval of Muschelkalk and exposures of the overlying clay deposits in the Winterswijk quarries. For the first time the Lower Muschetkalk Member in the Netherlands could be independently dated as Bithynian (Anisian, Middle Triassic). Contrary to widely accepted opinions the overlying almost black clay deposit is not Liassic but Rhaetian in age and it is assigned to the Sleen Shale Formation. This marginal marine clay which pinches out to the south, is in turn overlain by a light gray, full-marine Lower-Oligocene clay of the Rupel Formation. An anomalous occurrence of Liassic clay is now attributed to subrosion of Rot salt followed by collapse of the overlying Muschelkalk, Rhaetian and Lias strata.
引用
收藏
页码:409 / 413
页数:5
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