首页> 外文期刊>Geodiversitas >Les pal??opeuplements marins du Messinien pr??-??vaporitique de Pissouri (Chypre, M??diterran??e orientale) : aspects pal??o??cologiques pr??c??dant la crise de salinit?? messinienne
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Les pal??opeuplements marins du Messinien pr??-??vaporitique de Pissouri (Chypre, M??diterran??e orientale) : aspects pal??o??cologiques pr??c??dant la crise de salinit?? messinienne

机译:皮苏里(Pussouri)的墨西西尼亚前蒸气的海洋宫殿(塞浦路斯,地中海东部):盐度危机之前的苍白生态学方面。 ?信使

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The motorway section of Pissouri (Cyprus) allows to observe a nearly uninterrupted succession of marine sediments from the upper Tortonian up to the lower Messinian gypsum. Its palaeoecological analysis is given, based on the study of 180 samples containing faunal (fishes [four species], molluscs [about 25 benthic species and one planktonic], sponges [seven genera] and foraminifera [100 species]) and floral (diatoms [90 species] and silicoflagellates [four species]) assemblages. Although characterized by a low diversity, the malacofauna shows strong affinities with those of the lower Messinian sediments from Crete (Greece) and Piedmont (Italy). At the bottom of the section, the paleobiological assemblages correspond to mud deposits in a deep circalittoral or upper bathyal zone, near deeper areas. In the middle part of the section, they indicate shallower deposits (upper circalittoral). In the uppermost 5 m below the gypsum, the assemblages indicate an isolation of the basin, shallow water conditions and the disappearance of representative species (Propeamussium duodecimlamellatum (Bronn, 1831), Abra alba (Wood, 1802), Cavolinia gypsorum (Bellardi, 1873) and sponges) of the section is registered. In this context of progressive restriction of the Mediterranean, the low diversity of the fauna and the registered disappearances at the top of the Cyprish pre-evaporitic beds (Pissouri and Polemi basins) already suggest stressful environments for these oriental faunal assemblages, a long way from the Atlantic communication.
机译:皮苏里(塞浦路斯)的高速公路路段可以观察到从上托土层到下麦塞尼石膏几乎连续的海洋沉积物。根据对180个样品的研究,给出了古生态学分析,这些样品包含动物(鱼类[四种],软体动物[大约25种底栖生物和一种浮游生物],海绵[七个属]和有孔虫[100种])和花卉(硅藻[ 90种]和硅鞭毛虫[4种])组合。马拉科动物群虽然具有较低的多样性,但与克里特岛(希腊)和皮埃蒙特(意大利)的墨西拿下部沉积物具有很强的相似性。在该部分的底部,古生物学组合对应于较深区域的较深的周缘或上海底沉积带中的泥浆沉积。在该部分的中部,它们表示较浅的沉积物(上周缘)。在石膏下面最上方的5 m,这些组合表明盆地被隔离,浅水条件以及代表性物种( Propeamussium duodecimlamellatum (Bronn,1831), Abra alba (伍德,1802年),石膏小提琴(iCavolinia gypsorum)(贝拉迪,1873年)和海绵被注册。在地中海逐渐受到限制的情况下,动物群的多样性低以及塞浦路斯前蒸发层(Pissouri和Polemi盆地)顶部的消失已表明这些东方动物群的压力环境很大,距离大西洋通讯。

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