对Berriasian GSSP候选地travemaroua(法国上阿尔卑斯省的勒塞克斯)的批判性审视

IF 1.5 4区地球科学 Q2 GEOLOGY

Carnets De Geologie Pub Date : 2020-02-22 DOI:10.4267/2042/70714

B. Granier, S. Ferry, M. Benzaggagh

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引用次数: 11

摘要

最近，白垩纪地层学国际小组委员会(ISCS)贝里亚工作组(BWG)选择法国东南部的Tre Maroua遗址作为贝里亚全球边界层型点(GSSP)参考剖面的候选地点。然而，根据我们在该地点的初步调查和更大范围的野外观测，这一候选剖面的古地理位置位于一个充满连续侵蚀面、地层裂缝和角砾岩的深水斜坡上。它至少不符合“GSSP的五项地质要求”中的四项。因此，我们认为，必须明确排除其候选资格。

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A critical look at Tré Maroua (Le Saix, Hautes-Alpes, France), the Berriasian GSSP candidate section

The Tre Maroua site in SE France was recently selected by the Berriasian Working Group (BWG) of the International Subcommission on Cretaceous Stratigraphy (ISCS) as the candidate locality for the reference section of the Berriasian Global Boundary Stratotype Point (GSSP). However, on the basis of our preliminary investigation at this site and also from field observations over a larger area, this candidate section is paleogeographically located on a deep-water slope riddled with successive erosional surfaces, stratigraphic hiatuses and breccias. It does not meet at least four of the five "geological requirements for a GSSP". Accordingly, in our opinion, its candidacy must be definitely precluded.

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来源期刊

Carnets De Geologie Earth and Planetary Sciences-Geology

CiteScore

2.90

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： Information not localized