Scholarlink

The Gulf of Aqaba is an active series of pull-apart basins that developed at the left stepover of major sinistral strike-slip faults at the southern termination of the Dead Sea transform fault system. The Gulf of Aqaba is bounded by two N–S distributed shear zones on both sides, encompassing several anastomosing N–S to NNE-SSW-oriented left-lateral strike-slip faults and several small rhombic shape pull-apart basins. The N–S and NNE faults sinistrally offset the NW-oriented dikes on both sides of the Gulf of Aqaba (GA). It is formed by assembling three asymmetrical pull-apart basins including six deeps: Eilat, Aragon, Arnona, Dakar, Tiran, and Hume. The three basins are bounded and interconnected by three major sinistral strike-slip faults: Eilat, Aragonese, and Arnona. The Gulf of Aqaba is an atypical example illustrating the evolution of the transtensional basins by amalgamating small pull-apart basins. The internal fault pattern of the GA shows three groups of faults: long strike-slip faults parallel to the main axis of the basin, long normal faults sub-parallel to the GA, and the shorter normal faults oblique to the main direction of the basin and bounding the three basins from the north and the south. The deformation is partitioned between lateral motion and extension oblique to the Gulf. Four distinct phases of deformation have shaped the Gulf of Aqaba’s structural association. The initial stage occurred during the Early Miocene, while the second stage occurred during the Late Middle to Late Miocene. The third stage occurred during the Pliocene, while the fourth stage occurred during the Pliocene-Late Holocene. The spatial and temporal patterns of the seismic activities, as well as the b-values between 1983 and 2023, were collected from various sources in the Gulf of Aqaba. From 1983 to 2023, there was consistent seismic activity in the Gulf of Aqaba, indicating that all faults experienced active seismotectonic deformation. Of the three basins, the Aragonese Pull-apart basin is the most dynamically active. The Gulf’s activity is mostly determined by the pace of ongoing deformation and faulting behavior linked to seismic occurrences.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Review on the Geometry and Kinematic of the Gulf of Aqaba, the Southern Part of the Dead Sea Fault System

  • 章节

  • 发表日期：

    2025年

查看全文
  • Said Mohamed Said,
  • Masdouq Al-Taj

摘要

The Gulf of Aqaba is an active series of pull-apart basins that developed at the left stepover of major sinistral strike-slip faults at the southern termination of the Dead Sea transform fault system. The Gulf of Aqaba is bounded by two N–S distributed shear zones on both sides, encompassing several anastomosing N–S to NNE-SSW-oriented left-lateral strike-slip faults and several small rhombic shape pull-apart basins. The N–S and NNE faults sinistrally offset the NW-oriented dikes on both sides of the Gulf of Aqaba (GA). It is formed by assembling three asymmetrical pull-apart basins including six deeps: Eilat, Aragon, Arnona, Dakar, Tiran, and Hume. The three basins are bounded and interconnected by three major sinistral strike-slip faults: Eilat, Aragonese, and Arnona. The Gulf of Aqaba is an atypical example illustrating the evolution of the transtensional basins by amalgamating small pull-apart basins. The internal fault pattern of the GA shows three groups of faults: long strike-slip faults parallel to the main axis of the basin, long normal faults sub-parallel to the GA, and the shorter normal faults oblique to the main direction of the basin and bounding the three basins from the north and the south. The deformation is partitioned between lateral motion and extension oblique to the Gulf. Four distinct phases of deformation have shaped the Gulf of Aqaba’s structural association. The initial stage occurred during the Early Miocene, while the second stage occurred during the Late Middle to Late Miocene. The third stage occurred during the Pliocene, while the fourth stage occurred during the Pliocene-Late Holocene. The spatial and temporal patterns of the seismic activities, as well as the b-values between 1983 and 2023, were collected from various sources in the Gulf of Aqaba. From 1983 to 2023, there was consistent seismic activity in the Gulf of Aqaba, indicating that all faults experienced active seismotectonic deformation. Of the three basins, the Aragonese Pull-apart basin is the most dynamically active. The Gulf’s activity is mostly determined by the pace of ongoing deformation and faulting behavior linked to seismic occurrences.