塞浦路斯第一笔形兽记录:Pakhna组浊积岩沉积物的指示性存在

IF 0.8 4区地球科学 Q4 PALEONTOLOGY

Ichnos-An International Journal for Plant and Animal Traces Pub Date : 2020-04-02 DOI:10.1080/10420940.2019.1688801

F. Rodríguez-Tovar, O. Miguez-Salas, F. Hernández‐Molina, H. Hüneke

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引用次数: 7

摘要

在塞浦路斯中新世Pakhna组的技术分析中，首次发现了文字类结构的存在。Pakhna组以远洋/半远洋沉积为主，并发育等长岩、改造浊积岩和浊积岩相。因此，设想了远洋、底流和重力沉降之间复杂的相互作用。主要根据地层和微相特征来区分相有时是困难的。Helminthorhaphe作为笔质组的一个组成部分的记录支持浊积岩的存在，促进了它们与其他相的区分。浅绿岩相标志着植藻相的主导/背景，反映了古环境条件的变化。这一记录通过露头实例为推进底流和重力过程的研究提供了重要的视角。

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First Record of Graphoglyptids in Cyprus: Indicative Presence of Turbidite Deposits at the Pakhna Formation

Abstract Ichnological analysis at the Pakhna Formation (Miocene, Cyprus) reveals, for the first time, the presence of graphoglyptid structures. The Pakhna Formation is dominated by pelagic/hemipelagic sediments, together with contourite, reworked turbidite and turbidite facies. Thus, a complex interaction between pelagic, bottom-current and gravitational sedimentation is envisaged. The discernment of facies is sometimes difficult, based principally on stratigraphic and microfacies features. The record of Helminthorhaphe as a component of the graphoglytid group supports the presence of turbidites, facilitating their differentiation from the other facies. Nereites ichnofacies, punctuating a dominant/background Zoophycos ichnofacies, would reflect changes in paleoenvironmental conditions. This record offers significant perspectives to advance in the study of bottom-current and gravitational processes through outcrop examples.

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来源期刊

Ichnos-An International Journal for Plant and Animal Traces PALEONTOLOGY-

CiteScore

2.50

自引率

12.50%

发文量

审稿时长

>12 weeks

期刊介绍： The foremost aim of Ichnos is to promote excellence in ichnologic research. Primary emphases center upon the ethologic and ecologic significance of tracemaking organisms; organism-substrate interrelationships; and the role of biogenic processes in environmental reconstruction, sediment dynamics, sequence or event stratigraphy, biogeochemistry, and sedimentary diagenesis. Each contribution rests upon a firm taxonomic foundation, although papers dealing solely with systematics and nomenclature may have less priority than those dealing with conceptual and interpretive aspects of ichnology. Contributions from biologists and geologists are equally welcome. The format for Ichnos is designed to accommodate several types of manuscripts, including Research Articles (comprehensive articles dealing with original, fundamental research in ichnology), and Short Communications (short, succinct papers treating certain aspects of the history of ichnology, book reviews, news and notes, or invited comments dealing with current or contentious issues). The large page size and two-column format lend flexibility to the design of tables and illustrations. Thorough but timely reviews and rapid publication of manuscripts are integral parts of the process.