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首页> 外文期刊>Palaeogeography, Palaeoclimatology, Palaeoecology: An International Journal for the Geo-Sciences >Platy corals from the Middle Triassic of Upper Silesia, Poland: Implications for photosymbiosis in the first scleractinians
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Platy corals from the Middle Triassic of Upper Silesia, Poland: Implications for photosymbiosis in the first scleractinians

机译：来自波兰的上硅片中三叠系的Platy珊瑚：对第一个巩膜外的阴影的影响

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AbstractCoral patch reefs from Middle Triassic (upper Pelsonian–lower Illyrian) strata in the Upper Silesia region of southern Poland (Germanic domain of the Peri-Tethys) are rare examples of the first scleractinian buildups. The shallowing-upward succession in the Tarnów Opolski quarry records a transition from sponge to coral patch reefs interbedded with bioclastic limestones. Coral pillarstones built by thin, branchingVolzeia szulciare succeeded by platyPamiroseris silesiacaconstructing two platestone layers, each up to 50cm thick. Serial sections through platestones revealed flat to undulose growth form ofP.silesiaca. The maximum observable dimension of the coral plates is 24cm wide (typically up to 12cm), while thickness of most plates is 1–1.5cm. Coral plates are interlayered with crinoidal wacke- to packstone and microbialites, which are locally important component of the platestone. Platy corals grew in a shallow, turbid-water environment with changing, but dominantly moderate hydrodynamics. Net sedimentation was low, as indicated by the epibionts encrusted to the undersides of the coral plates, and locally common microbial fabrics. Growth-interruptions ofP.silesiacarecord events of storm-induced sediment input and resuspension of carbonate mud. Based on the euphotic floor model, the flattened morphology ofP.silesiacais interpreted as an optimal growth form in a turbid, low-light environment. Platy scleractinian assemblages from Silesia are the oldest occurrences of this ecological cor
机译：<！[cdata [ 抽象 来自中间三叠系（上部Pelsonian-Lower Illyrian）地层中的中间南部南部的中间硅灰岩地区的珊瑚补丁珊瑚礁（ Peri-Thethys的日耳曼域名是第一个巩膜壳体堆积的罕见例子。 TarnówOpolski采石场中的浅浅的继承记录了从海绵到珊瑚贴片礁的过渡，与生物旋涡石灰岩互相堵塞。珊瑚桩由薄，分支卷发：斜体>由Platy 斜视> pamiroseris silesiaca 构造两个晶层层，每个镀层层均多达50cm厚。通过算子的序列部分显示出平坦的增长形式 p 。 silesiaca 。珊瑚板的最大可观察尺寸为24cm宽（通常高达12厘米），而大多数板的厚度为1-1.5cm。珊瑚板与Crinoidal Wacke-to Closstone和MicroGialites夹层，这是晶粒的局部重要组成部分。 Platy Corals在浅，混浊的水环境中成长，变化，但占主导地位的流体动力学。净沉降很低，如驻扎在珊瑚板的下透明和局部常见的微生物织物所示。 p 。 silensiaca 触发沉积物输入的记录事件和碳酸盐泥的重新悬浮。基于Euphotic地板模型， p 。 silesiaca：斜体>被解释为浑浊，低光的最佳生长形式环境。来自Silesia的Platy Scleractinian组装是这一生态核的最古老的事件

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