2019年10月21日至24日，会后实地指南:联合国教科文组织维卢埃卡斯-伊博雷斯-哈拉地质公园周围的edicarico和Terreneuviense

IF 0.8 4区地球科学 Q3 GEOLOGY

Estudios Geologicos-Madrid Pub Date : 2019-12-02 DOI:10.3989/egeol.43726.576

J. Álvaro, S. Jensen, T. Palacios

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引用次数: 1

摘要

在连接巴达霍斯省、卡塞雷斯省和托莱多省的地理地图的一个角落里，有一些关键的露头，对于了解中伊比利亚地区埃迪卡拉-寒武纪的过渡是必要的。在Extremenian背斜、Ibor和Valdelacasa背斜的岩心中，下Alcudian-Domo Extremeno超群(包括Orellana组的双晶岩)、Villarta组的Cloudina最壮观的微生物礁和Arrocampo组的寒武纪古技术基地(Villarta组和Arrocampo组都属于Ibor组)尤为突出。传统上被认为是前寒武纪-寒武纪界线和科尔都边区域阶段基底的代表的出露位于普萨组下段，不整合地覆盖在Ibor群上，目前被认为是terreneuvian期。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Guía de campo post-congreso, 21-24 de Octubre de 2019: Ediacárico y Terreneuviense en los alrededores del Geoparque de la UNESCO Villuercas-Ibores-Jara

One of the corners of the geographical maps that link the provinces of Badajoz, Caceres and Toledo contains some key outcrops necessary to understand the Ediacaran-Cambrian transition in the Central-Iberian Zone. In the cores of the Extremenian Anticlinorium and the Ibor and Valdelacasa anticlines, the Lower Alcudian-Domo Extremeno Supergroup (including the diamictites of the Orellana Formation), the most spectacular microbial reefs with Cloudina of the Villarta Formation, and the palaeoichnological base of the Cambrian in the Arrocampo Formation (both the Villarta and Arrocampo formations belong to the Ibor Group) stand out. The exposures that were traditionally considered as representatives of the Precambrian-Cambrian boundary and base of the Cordubian regional Stage are located in the lower member of the Pusa Formation, unconformably overlying the Ibor Group, and are considered at present as intra-Terreneuvian in age.

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来源期刊

Estudios Geologicos-Madrid GEOLOGY-

CiteScore

1.40

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： Since 1945 Estudios Geologicos publishes original research works, as well as reviews, about any topic on Earth Sciences. Estudios Geologicos is published as one yearly volume, divided into two half-yearly issues. It is edited by the Spanish National Research Council (Consejo Superior de Investigaciones Científicas, CSIC) at the Instituto de Geociencias (CSIC-UCM). Estudios Geologicos provides free access to full-text articles through this electronic edition. Accepted articles appear online as "Forthcoming articles" as soon as the galley proofs have been approved by the authors and the Editor-in-Chief. No changes can be made after online publication.