中新世中期气候过渡时期东地中海(塞浦路斯岛Kottafi Hill段)海洋环境条件的重建

IF 0.7 Q4 PALEONTOLOGY
M. Athanasiou , M.V. Triantaphyllou , M.D. Dimiza , A. Gogou , I. Panagiotopoulos , A. Arabas , E. Skampa , K. Kouli , M. Hatzaki , E. Tsiolakis
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引用次数: 4

摘要

对塞浦路斯中新世Pakhna组碳酸盐岩体系的一部分深海Kottafi Hill剖面(KHS)进行了多代理研究,包括钙质纳米化石分析、浮游有孔虫Orbulina universa氧碳同位素组成测量、花粉和孢粉含量测定等。揭示了这些沉积序列在评估中新世中期重大全球事件在区域尺度上的影响方面的重要性。KHS跨度为20.89 ~ 11.6 Ma,在15.5 ~ 11.6 Ma温暖湿润的气候条件下,沉积了18条富含oc的粉砂岩夹层。这些层可能是上新世-全新世期间主要发育于东地中海盆地的腐泥层的前身。根据KHS的δ18O浮游有孔虫记录,全球冰川事件mi3 - mi5代表了中新世中期气候转变的逐步冷却阶段。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Reconstruction of oceanographic and environmental conditions in the eastern Mediterranean (Kottafi Hill section, Cyprus Island) during the middle Miocene Climate Transition

The multi-proxy investigation of the deep-marine Kottafi Hill section (KHS), a part of the carbonate system of the Miocene Pakhna Formation, Cyprus, involved such proxies as calcareous nannofossil analysis, measurements of the oxygen and carbon isotope composition of the planktonic foraminifer Orbulina universa, and determination of the pollen and palynomorph contents, revealed the importance of these sedimentary sequences in the assessment of the impact of major global events during the middle Miocene on the regional scale. The KHS spans the 20.89–11.6 Ma time interval, during which eighteen OC-rich siltstone intercalated laminae have been deposited under warm and humid climate at 15.5–11.6 Ma. These layers can be possibly considered as the precursors of sapropelic layers mostly developed in the eastern Mediterranean Basin during Pliocene–Holocene. The global glacial events Mi3a–Mi5, traced by δ18O planktonic foraminifera records in the KHS, represent the stepwise cooling phase during the middle Miocene Climate Transition.

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来源期刊
CiteScore
2.50
自引率
0.00%
发文量
17
期刊介绍: La Revue de micropaléontologie publie 4 fois par an des articles de intérêt international, consacrés à tous les aspects de la micropaléontologie. Les textes, en anglais ou en français, sont des articles originaux, des résultats de recherche, des synthèses et mises au point, des comptes rendus de réunions scientifiques et des analyses de ouvrages. La revue se veut résolument ouverte à tous les aspects de la micropaléontologie en accueillant des travaux traitant de la systématique des microfossiles (et de leurs équivalents actuels), des bactéries aux microrestes de vertébrés, et de toutes leurs applications en sciences biologiques et géologiques.
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