非洲斯科利奥（北第勒尼安海）海底形态与近代动力学

IF 2.2 3区地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY

Marine Geology Pub Date : 2025-03-05 DOI:10.1016/j.margeo.2025.107518

Anna Saroni , Federica Maurantonio , Daniele Casalbore , Francesco L. Chiocci , Ettore Cimenti , Massimo Coltorti , Maurizio Demarte , Martina Pierdomenico , Daniele Spatola , Roberta Ivaldi

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引用次数: 0

摘要

从2017年到2023年，位于第勒尼安海北部的Scoglio d' africa岛附近的近海地区进行了调查和监测，此前一座浅水泥火山喷发出强烈的液体，导致海平面以上10米的爆发。这种短暂现象只发生在局部地区，而且时间很短。评估这类事件的复杂性需要一个综合的监测系统，它使我们能够通过高分辨率的带状测深和直接的视觉海底观测来表征海底形态和最近的动态。这些数据还可以识别与泥火山作用有关的近期海底动力学和流体渗流产生的新特征，从而深入了解该地区与冷渗漏有关的海底形态的时空演变。特别是，导致2017年天然气爆发的泥火山由两个浅水丘组成，具有不同的海底演化记录，包括沉积物固结、破裂以及形态和高度的变化，可能与膨胀/收缩过程以及波浪作用对沉积物的改造有关。

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Seafloor morphology and recent dynamics in the Scoglio d'Affrica (Northern Tyrrhenian Sea)

From 2017 to 2023, the offshore area nearby the Scoglio d'Affrica islet, located in the Northern Tyrrhenian Sea, has been surveyed and monitored after a violent fluid emission from a shallow-water mud volcano that caused an outburst rising 10 m above the sea surface. This transient phenomenon occurred very localized and short-lived. Assessing the complexity of this kind of event requires an integrated monitoring system, which allows us to characterize the seafloor morphology and recent dynamics through high resolution swath bathymetry and direct visual seafloor observation. These data allow also the identification of new features produced by recent seafloor dynamics and fluid seepage related to mud volcanism, obtaining insights on the temporal and spatial evolution of the seafloor morphology related to cold seeps in the area. In particular, the mud volcano responsible for the 2017 gas outburst is made up of two shallow water mounds characterized by different seafloor evolutionary records, including sediment consolidation, fracturing and variation in morphology and height, likely related to inflation/deflation processes as well as to the sediment reworking by wave action.

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来源期刊

Marine Geology 地学-地球科学综合

CiteScore

6.10

自引率

6.90%

发文量

175

审稿时长

21.9 weeks

期刊介绍： Marine Geology is the premier international journal on marine geological processes in the broadest sense. We seek papers that are comprehensive, interdisciplinary and synthetic that will be lasting contributions to the field. Although most papers are based on regional studies, they must demonstrate new findings of international significance. We accept papers on subjects as diverse as seafloor hydrothermal systems, beach dynamics, early diagenesis, microbiological studies in sediments, palaeoclimate studies and geophysical studies of the seabed. We encourage papers that address emerging new fields, for example the influence of anthropogenic processes on coastal/marine geology and coastal/marine geoarchaeology. We insist that the papers are concerned with the marine realm and that they deal with geology: with rocks, sediments, and physical and chemical processes affecting them. Papers should address scientific hypotheses: highly descriptive data compilations or papers that deal only with marine management and risk assessment should be submitted to other journals. Papers on laboratory or modelling studies must demonstrate direct relevance to marine processes or deposits. The primary criteria for acceptance of papers is that the science is of high quality, novel, significant, and of broad international interest.