A Giant Slide within the Upper Cretaceous Limestones as an Indicator for Fault Activity Dating and Basin Evolution
The studied section, up to 10 m thick with 17 different carbonate beds, showed the interaction between a giant slide and the pre-existing normal faults during the upper Cretaceous time. There are three major points of consideration in the studied section: (1). The presence of two slump horizons, up...
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2023-01-01
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| author | Nikolaos Dimopoulos Elena Zoumpouli Nicolina Bourli Penelope Papadopoulou George Iliopoulos Avraam Zelilidis |
| author_facet | Nikolaos Dimopoulos Elena Zoumpouli Nicolina Bourli Penelope Papadopoulou George Iliopoulos Avraam Zelilidis |
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| description | The studied section, up to 10 m thick with 17 different carbonate beds, showed the interaction between a giant slide and the pre-existing normal faults during the upper Cretaceous time. There are three major points of consideration in the studied section: (1). The presence of two slump horizons, up to 1 m thick each, within the stratigraphic column, related to the basin floor instability, due to normal listric faults activity. (2). The presence of many normal, with listric geometry, faults, with an ESE–WNW direction, and mostly west-dipping. These faults acted during the sedimentation processes and produced the basin floor inclination for the slumping when still the sediments were unconsolidated. This tectonic activity seems to terminate in the upper part of the stratigraphic column. (3). After the development of the slumps and the normal faults’ activity, which produced a displacement of up to 30 cm, a new event was characterized in the region. The completely studied block probably rotated to the west and thus the instability of the sediments produced a giant slide, up to 7 m thick and with movement up to 0.9 m, cutting the pre-existing normal faults. The knowledge of the regional evolution, with extensional tectonics during the Jurassic to early Miocene periods, which was inverted to a compressional regime during the middle Miocene, as well as the presence of a major normal fault along the studied section with an NNW–SSE direction, suggested that the studied section was situated on the hanging wall of the above fault during the extensional regime. |
| format | Article |
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| language | English |
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| spelling | doaj-art-09e2caeb4e8f4994abf225aeb49b1f862025-08-20T02:42:25ZengMDPI AGProceedings2504-39002023-01-01871810.3390/IECG2022-13957A Giant Slide within the Upper Cretaceous Limestones as an Indicator for Fault Activity Dating and Basin EvolutionNikolaos Dimopoulos0Elena Zoumpouli1Nicolina Bourli2Penelope Papadopoulou3George Iliopoulos4Avraam Zelilidis5Laboratory of Sedimentology, Department of Geology, University of Patras, 26504 Rion, GreeceLaboratory of Sedimentology, Department of Geology, University of Patras, 26504 Rion, GreeceLaboratory of Sedimentology, Department of Geology, University of Patras, 26504 Rion, GreeceLaboratory of Paleontology and Stratigraphy, Department of Geology, University of Patras, 26504 Patras, GreeceLaboratory of Paleontology and Stratigraphy, Department of Geology, University of Patras, 26504 Patras, GreeceLaboratory of Sedimentology, Department of Geology, University of Patras, 26504 Rion, GreeceThe studied section, up to 10 m thick with 17 different carbonate beds, showed the interaction between a giant slide and the pre-existing normal faults during the upper Cretaceous time. There are three major points of consideration in the studied section: (1). The presence of two slump horizons, up to 1 m thick each, within the stratigraphic column, related to the basin floor instability, due to normal listric faults activity. (2). The presence of many normal, with listric geometry, faults, with an ESE–WNW direction, and mostly west-dipping. These faults acted during the sedimentation processes and produced the basin floor inclination for the slumping when still the sediments were unconsolidated. This tectonic activity seems to terminate in the upper part of the stratigraphic column. (3). After the development of the slumps and the normal faults’ activity, which produced a displacement of up to 30 cm, a new event was characterized in the region. The completely studied block probably rotated to the west and thus the instability of the sediments produced a giant slide, up to 7 m thick and with movement up to 0.9 m, cutting the pre-existing normal faults. The knowledge of the regional evolution, with extensional tectonics during the Jurassic to early Miocene periods, which was inverted to a compressional regime during the middle Miocene, as well as the presence of a major normal fault along the studied section with an NNW–SSE direction, suggested that the studied section was situated on the hanging wall of the above fault during the extensional regime.https://www.mdpi.com/2504-3900/87/1/8slidesoft-sediment deformation structuresApulian PlatformKefalonia Island |
| spellingShingle | Nikolaos Dimopoulos Elena Zoumpouli Nicolina Bourli Penelope Papadopoulou George Iliopoulos Avraam Zelilidis A Giant Slide within the Upper Cretaceous Limestones as an Indicator for Fault Activity Dating and Basin Evolution Proceedings slide soft-sediment deformation structures Apulian Platform Kefalonia Island |
| title | A Giant Slide within the Upper Cretaceous Limestones as an Indicator for Fault Activity Dating and Basin Evolution |
| title_full | A Giant Slide within the Upper Cretaceous Limestones as an Indicator for Fault Activity Dating and Basin Evolution |
| title_fullStr | A Giant Slide within the Upper Cretaceous Limestones as an Indicator for Fault Activity Dating and Basin Evolution |
| title_full_unstemmed | A Giant Slide within the Upper Cretaceous Limestones as an Indicator for Fault Activity Dating and Basin Evolution |
| title_short | A Giant Slide within the Upper Cretaceous Limestones as an Indicator for Fault Activity Dating and Basin Evolution |
| title_sort | giant slide within the upper cretaceous limestones as an indicator for fault activity dating and basin evolution |
| topic | slide soft-sediment deformation structures Apulian Platform Kefalonia Island |
| url | https://www.mdpi.com/2504-3900/87/1/8 |
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