4.6 Article

Volcano-Tectonic Evolution of the Christiana-Santorini-Kolumbo Rift Zone

期刊

TECTONICS
卷 41, 期 11, 页码 -

出版社

AMER GEOPHYSICAL UNION
DOI: 10.1029/2022TC007524

关键词

volcano-tectonics; Santorini; rifting; back-arc; Hellenic Arc; Aegean Sea

资金

  1. German Research Foundation DFG [HU690/25-1]
  2. Projekt DEAL

向作者/读者索取更多资源

By using high-resolution reflection seismic imagery, this study provides insights into the formation of the Christiona-Santorini-Kolumbo (CSK) rift zone and reveals the correlation between volcanic activity and specific fault movements. The findings suggest that the tectonic evolution of the rift is controlled by deep-seated processes, and volcanic activity has a secondary feedback mechanism on the tectonic system. A comparison with neighboring volcanic fields highlights the potential arc-wide scale of the observed volcano-tectonic interplay.
Located on the Hellenic Arc, the Christiana-Santorini-Kolumbo (CSK) rift zone represents one of the most active and hazardous volcano-tectonic systems in the Mediterranean. Although this rift zone has been intensively studied, its tectonic evolution and the interplay of volcanism and tectonism are still poorly understood. In this study, we use high-resolution reflection seismic imagery to reconstruct the opening of the rift basins. For the first time, we relate the activity of individual faults with the activity of specific volcanic centers in space and time. Our analysis shows a pre-volcanic NNE-SSW-oriented paleo basin underneath the CSK volcanoes, representing a transfer zone between Pliocene ESE-WNW-oriented basins, which was overprinted by a NE-SW-oriented tectonic regime hosting Late Pliocene volcanism that initiated at the Christiana Volcano. All subsequent volcanoes evolved parallel to this trend. Two major Pleistocene tectonic pulses preceded fundamental changes in the volcanism of the CSK rift including the occurrence of widespread small-scale volcanic centers followed by focusing of activity at Santorini with increasing explosivity. The observed correlation between changes in the tectonic system and the magmatism of the CSK volcanoes suggests a deep-seated tectonic control of the volcanic plumbing system. In turn, our analysis reveals the absence of large-scale faults in basin segments affected by volcanism indicating a secondary feedback mechanism on the tectonic system. A comparison with the evolution of the neighboring Kos-Nisyros-Yali volcanic field zone and Rhodos highlights concurrent regional volcano-tectonic changes, suggesting a potential arc-wide scale of the observed volcano-tectonic interplay.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据