荷兰-比利时边境地区地下上新世-更新世过渡:来自Huijbergen钻孔的见解

IF 1.2 4区 地球科学 Q2 GEOLOGY
Stijn Everaert, J. Deckers, D. Munsterman, F. Wesselingh
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引用次数: 0

摘要

荷兰南部和比利时最北部的上新世-更新世序列的跨界对比是有问题的,因为通常缺乏生物地层标志。由于比利时梅克斯普拉斯地层的年龄限制较差,相关性进一步受到阻碍。为了解决这些问题,将沉积、软体动物和鞭毛藻囊分析结合起来,以表征Huijbergen钻孔(荷兰)的岩石地层单元,并提供年龄估计。随后,将Huijbergen钻孔与邻近的Essen和Kalmthout(比利时)钻孔进行了对比。荷兰Oosterhout组的Piacenzian层段可以与比利时Lillo组进行对比,后者的三层井眼测井特征在两国边界上几乎是连续的。荷兰Maassluis组和Waalre组分别与Merksplas组下部含壳和上部无化石进行对比。虽然恐龙囊不能诊断Maassluis组和Waalre组的年龄,但间冰期海洋贝壳的特征为Maassluis组提供了一个Gelasian年龄的评估。通过对比,这一年龄估计也可以应用于Merksplas组下部,从而阐明了荷兰-比利时边界附近的上新世-更新世过渡时期。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Pliocene–Pleistocene transition in the subsurface of the Dutch-Belgian border region: insights from borehole Huijbergen
Cross-border correlations of the Pliocene–Pleistocene successions in the southern Netherlands and northernmost Belgium are problematic, because biostratigraphic markers are often lacking. Correlation is further hampered by the poor age constraints of the Belgian Merksplas Formation. To address these issues, sedimentary, mollusc and dinoflagellate cyst analyses are combined to characterise the lithostratigraphic units in the Huijbergen borehole (The Netherlands) and to provide age estimates. Subsequently, the Huijbergen borehole was correlated with nearby boreholes in Essen and Kalmthout (Belgium). The Piacenzian intervals of the Dutch Oosterhout Formation can be correlated with the Belgian Lillo Formation, with the latter’s threefold borehole log signature appearing virtually continuous across the border between both countries. The Dutch Maassluis and Waalre formations are correlated with the shell-bearing lower part and the unfossiliferous higher part of the Merksplas Formation respectively. Although dinocysts are not age-diagnostic for the Maassluis and Waalre formations in borehole Huijbergen, characteristic interglacial marine shells provide a Gelasian age assessment for the Maassluis Formation. By correlation, this age estimate can also be applied to the lower part of the Merksplas Formation, thereby elucidating the Pliocene–Pleistocene transition near the Dutch-Belgian border.
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来源期刊
Geologica Belgica
Geologica Belgica 地学-地质学
CiteScore
4.70
自引率
27.80%
发文量
8
审稿时长
>12 weeks
期刊介绍: Geologica Belgica is a Belgian journal that welcomes papers concerning all aspects of the earth sciences, with a particular emphasis on the regional geology of Belgium, North West Europe and central Africa. Papers not dedicated to the geology of Belgium, North West Europe and central Africa are only accepted when one of the authors is linked to a Belgian University or Institution. Thematic issues are highly appreciated. In this case, guest editors take in charge the selection of the manuscripts and the subject of the papers can be enlarged. The journal is in open access. Submitted manuscripts should be concise, presenting material not previously published. The journal also encourages the publication of papers from Belgian junior authors. Short letters are accepted. Papers written in English are preferred. Each mansucript will be reviewed by at least two reviewers.
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