Remarkably well-preserved crustal sections from the Eastern Hellenides offer the chance to evaluate the regional geodynamic evolution of continental crust. Here, we identify and geodynamically interpret eclogite facies metamorphism in the Triassic–Jurassic volcano-sedimentary series of the West Circum Rhodope zone in the eastern Hellenides. Equilibrium phase diagrams and measured mineral compositions were used to inform reconstructions of geodynamic evolution during the early Alpine period. We newly define the existence of the Eohellenic HP belt, consisting of pre-Alpine basement, continental volcano-sedimentary formations, and a Jurassic magmatic arc. We suggest that the Eohellenic HP-Belt was subducted in the late Jurassic to early Cretaceous beneath the European plate margin. Detailed geodynamic reconstructions such as ours provide a robust anchor for future computational models of long-term crustal evolution in the Eastern Hellenides.

Graphical abstract

中文翻译：

---

侏罗纪至白垩纪早期希腊东部的地球动力学演化

东希腊保存完好的地壳剖面为评估大陆地壳的区域地球动力学演化提供了机会。在这里，我们识别并从地球动力学角度解释了希腊东部西环罗多彼带三叠纪-侏罗纪火山沉积系列中的榴辉岩相变质作用。平衡相图和测量的矿物成分被用来重建早期阿尔卑斯时期的地球动力学演化。我们重新定义了古希腊高压带的存在，该带由前高山基底、大陆火山沉积地层和侏罗纪岩浆弧组成。我们认为古希腊高压带在晚侏罗世到早白垩世期间俯冲到欧洲板块边缘下方。像我们这样的详细地球动力学重建为东希腊半岛长期地壳演化的未来计算模型提供了强有力的锚定。

图形概要