PLIOCENE AND PLEISTOCENE DEPOSITIONAL ENVIRONMENTS IN THE PESCULUSE AREA (SALENTO, ITALY)

IF 1.6 3区 地球科学 Q2 GEOLOGY
A. D'alessandro, F. Massari
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引用次数: 1

Abstract

An integrated sedlmentologic and palaeoecologic approach is used to define the evolving Pliocene, Early and Middle Pleistocene depositional environments in the Pesculuse area. Lower Pliocene deposits show evidence of a quiet outer-shelf setting, apparently not affected by the physiography of the transgressed palaeotopography. In contrast, the onlap of Upper Pliocene carbonate deposits onto topographic highs testifies that sedlmentation was preceded by a block-faulting event. The Late Pliocene transgression flooded a subaerial karstic landscape. A ridge of Cretaceous limestone created a protected enuronment, In which wavy bedforms of exceptional scale, which are thought to result from tsunami surges, were generated and preserved. At this stage, different palaeocommunities settled in several shallow-water micro-environments.
pesculuse地区(意大利萨伦托)上新世-更新世沉积环境
采用沉积地质学和古生态学相结合的方法,确定了Pesculse地区上新世、早更新世和中更新世的沉积环境。上新世晚期的矿床显示了平静的外陆架环境的证据,显然不受越轨古地形地貌的影响。相比之下,上上新世碳酸盐矿床在地形高点上的上覆证明沉积之前发生了块体断裂事件。上新世晚期的海侵淹没了陆上岩溶景观。白垩纪石灰岩山脊创造了一个受保护的环境,其中产生并保存了被认为是海啸潮造成的异常规模的波状床。在这一阶段,不同的古群落定居在几个浅水微环境中。
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来源期刊
CiteScore
3.60
自引率
4.30%
发文量
28
审稿时长
>12 weeks
期刊介绍: The Rivista Italiana di Paleontologia e Stratigrafia was founded in 1895. It publishes original papers dealing with all fields of paleontology and of stratigraphy, from Italy and the Mediterranean to the Tethys, as well across the globe from China to North America.
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