奥科石灰岩：被南比利牛斯山推力前沿（西班牙纳瓦拉）包围的晚中新世-上新世河道-湖沼-湖泊碳酸盐湿地

Q4 Earth and Planetary Sciences

Geogaceta Pub Date : 2023-12-18 DOI:10.55407/geogaceta98229

Asier Valenzuela, Z. Larena, Xabier Murelaga Bereicua, J. Baceta

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引用次数: 0

摘要

这项研究对出露于纳瓦拉安津-穆里埃塔盆地的上新世-上新世奥科石灰岩进行了沉积学研究。研究了碳酸盐单元的两个地层剖面：奥科墓地剖面和埃加路剖面。前者所揭露的地层具有河流碳酸盐环境的特征，微生物鲕粒沉积明显。而埃加路断面所揭露的同时期沉积物则主要代表了在池塘和干燥交替条件下演化的湖沼-湖泊环境。通过对这些断面和中间区域的数据进行整合，可以解释出一个具有明显东-东南走向的河口-湖口湿地，它是与皮德拉米耶拉推力片隆升同时形成的。

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The Oko Limestones: a Late Miocene-Pliocene fluvial to palustrine-lacustrine carbonate wetland enclosed in the South Pyrenean Thrust Front (Navarre, Spain)

This work presents the sedimentological study of the Upper Miocene-Pliocene Oko Limestones, exposed in the Antzin-Murieta Basin, in Navarre. Two stratigraphic sections of the carbonate unit have been studied: the Oko cemetery and Ega road sections. The former exposes facies that characterize a fluvial carbonate environment, with a distinct development of microbial oncolitic deposits. The coeval deposits exposed in the Ega road section, instead, largely represent a palustrine-lacustrine setting that evolved under alternating conditions of ponding and desiccation. Data integration from these sections and the intermediate areas, allows the interpretation of a fluvial to palustrine-lacustrine wetland with a marked east-southeast trend, which developed coevally to the uplift of the Piedramillera thrust sheet.

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来源期刊

Geogaceta Earth and Planetary Sciences-Geology

CiteScore

0.40

自引率

0.00%

发文量

期刊介绍： Geogaceta is a magazine that publishes semiannually the Geological Society of Spain. This society aims to promote, promote, and disseminate knowledge, progress and applications of Geology; , the advice in scientific and educational matters to the institutions and entities that require it and the representation of the scientific interests of the geological community of Spain at international level. Its members have the right to participate in all the activities organized by the Company, to present their candidacy to any of their management positions and to receive free periodical publications of the Company (Geogaceta and Magazine of the Geological Society of Spain).