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Buildings that ‘Speak’: Ichnological Geoheritage in 1930s Buildings in Piazza della Vittoria (Genova, Italy)
Geoheritage ( IF 2.9 ) Pub Date : 2020-07-30 , DOI: 10.1007/s12371-020-00496-x
Andrea Baucon , Michele Piazza , Roberto Cabella , Maria Cristina Bonci , Leda Capponi , Carlos Neto de Carvalho , Antonino Briguglio

The geoheritage value of sedimentary building stones has mainly focused on physical sedimentary structures and body fossils. By contrast, little attention has been placed on the geoheritage significance of ichnofabrics, which are the sedimentary fabrics that have been reworked by organisms. This study aims to fill this gap by analysing the ichnofabric found on the buildings of Piazza della Vittoria, in Genova (Italy). Here, unusually visible and well-preserved specimens of the fossil burrow Bichordites are observed on the historical buildings designed by Marcello Piacentini, one of the local most prominent architects of the 1930s. The Bichordites of Piazza della Vittoria are winding meniscate burrows with a central string-like structure. Here, we interpret this ichnofabric as the result of the activity of a community of echinoids bioturbating a sand wave system. We have also located the historical quarry that provided material for the studied buildings with the same ichnofossils exposed. Surprisingly, the cuts on display on the buildings are much nicer than those in the outcrops and more taxon specific characteristics can be observed just on the tiles rather than in the field. For all these reasons, the geoheritage value of the Piazza della Vittoria ichnofabric relies in its unique scientific significance, the cultural value, and its potential future applications in research, teaching, urban geotourism and reference site.

中文翻译:

“说话”的建筑物:1930年代的技术地质遗产位于维多利亚广场(意大利热那亚)的建筑物

沉积建筑石头的地质遗留价值主要集中在物理沉积结构和人体化石上。相比之下,鱼鳞织物的地质遗留意义很少被关注,鱼鳞织物是已被有机体改造的沉积织物。这项研究旨在通过分析在意大利热那亚的维拉广场广场的建筑物上发现的纤维织物来填补这一空白。在这里,在1930年代当地最杰出的建筑师之一马塞洛·皮亚森蒂尼(Marcello Piacentini)设计的历史建筑中观察到了化石洞穴Bichordites的异常可见且保存完好的标本。该Bichordites维多利亚广场(Piazza della Vittoria)的月牙形洞穴蜿蜒而行,中央呈弦状结构。在这里,我们将这种纤维织物解释为类固醇类生物干扰沙波系统的活动的结果。我们还找到了历史采石场,该历史采石场为暴露的鱼鳞化石暴露的建筑物提供了材料。令人惊讶的是,建筑物上显示的切口比露头上的切口好得多,并且仅在瓷砖上而不是在田间就可以观察到更多的分类单元特性。由于所有这些原因,Viatoria della Vittoria ichnofabric广场的地质遗产价值取决于其独特的科学意义,文化价值以及其在研究,教学,城市地质旅游和参考地点中的潜在未来应用。
更新日期:2020-07-30
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