We utilize in situ U‐Pb geochronology of fault‐related calcite to date faulting activity along the Dead Sea Transform (DST) plate boundary and constrain the evolution of continental breakup. U‐Pb ages from 30 well‐constrained Tera‐Wasserburg data sets of syntectonic calcite precipitates along the northern part of the DST delineate two key periods of faulting activity: (1) Maastricht (latest Cretaceous) to Eocene (70–37 Ma) and (2) middle Miocene (18–10 Ma). The latter period is more extensive and is associated with normal and left‐lateral shearing deformation. Ages of ~18 Ma, obtained from the western and eastern most strands (~20 km apart), indicate that branching in the northern DST occurred during the initial stage of the DST development. Comparison of the new ages from the northern part of the DST with U‐Pb ages from the southern part highlights prominent faulting activity during the early to middle Miocene (20–10 Ma), with earliest ages of ~18 Ma in the south and younger ages of ~14 Ma in the north. This pattern suggests that the genesis of this plate boundary started adjacent to the Red Sea rift and migrated from south to north during a 3.5–4 Ma period (between 18 and 14 Ma) at an average rate of 11–13 cm/year. Such propagation data can be used to decipher the mechanical evolution of the lithosphere along evolving plate boundaries.

中文翻译：

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活动板块边界的演化和传播：死海变换中与断层有关的方解石的U-Pb年龄

我们利用与断层有关的方解石的原位U-Pb年代学来确定沿死海转换（DST）板块边界的断层活动，并限制大陆破裂的演化。DST北部沿构造约束方解石沉淀的30个受严格约束的Tera-Wasserburg数据集的U-Pb年龄描述了断裂活动的两个关键时期：（1）马斯特里赫特（白垩纪最新）至始新世（70-37 Ma），以及（2）中新世中期（18-10 Ma）。后一个时期更广泛，并且与正常的和左侧的剪切变形有关。从最西端和最东端（相距约20公里）获得的〜18 Ma年龄表明，北夏令时的分支发生在夏令时发展的初始阶段。将DST北部的新年龄与南部的U-Pb年龄进行比较，可以看出中新世早期至中期（20-10 Ma）有明显的断层活动，南部和年轻的最早年龄约为18 Ma。北部约14 Ma。这种模式表明该板块边界的成因开始于红海裂谷附近，并在3.5–4 Ma的时期（18至14 Ma之间）从南向北迁移，平均速率为11–13 cm /年。此类传播数据可用于解密岩石圈沿不断演化的板块边界的机械演化。这种模式表明该板块边界的成因开始于红海裂谷附近，并在3.5–4 Ma的时期（18至14 Ma之间）从南向北迁移，平均速率为11–13 cm /年。此类传播数据可用于解密岩石圈沿不断演化的板块边界的机械演化。这种模式表明该板块边界的成因开始于红海裂谷附近，并在3.5–4 Ma的时期（18至14 Ma之间）从南向北迁移，平均速率为11–13 cm /年。此类传播数据可用于解密岩石圈沿不断演化的板块边界的机械演化。