According to new apatite fission track, zircon- and apatite (U–Th)/He data, we constrain the near-surface history of the southeastern Tauern Window and adjacent Austrolapine units. The multi-system thermochronological data demonstrate that age-elevation correlations may lead to false implications about exhumation and cooling in the upper crust. We suggest that isothermal warping in the Penninic units that are in the position of a footwall, is due to uplift, erosion and the buildup of topography. Additionally we propose that exhumation rates in the Penninic units did not increase during the Middle Miocene, thus during the time of lateral extrusion. In contrast, exhumation rates of the Austroalpine hangingwall did increase from the Paleogene to the Neogene and the isotherms in this unit were not warped. The new zircon (U–Th)/He ages as well as zircon fission track ages from the literature document a Middle Miocene exhumation pulse which correlates with a period of enhanced sediment accumulation during that time. However, enhanced sedimentation- and exhumation rates at the Miocene/Pliocene boundary, as observed in the Western- and Central Alps, cannot be observed in the Eastern Alps. This contradicts a climatic trigger for surface uplift, and makes a tectonic trigger and/or deep-seated mechanism more obvious to explain surface uplift in the Eastern Alps. In combination with already published geochronological ages, our new data demonstrate Oligocene to Late Miocene fault activity along the Möll valley fault that constitutes a major shear zone in the Eastern Alps. In this context we suggest a geometrical and temporal relationship of the Katschberg-, Polinik–Möll valley- and Mur–Mürz faults that define the extruding wedge in the eastern part of the Eastern Alps. Equal deformation- and fission track cooling ages along the Katschberg–Brenner- and Simplon normal faults demonstrate overall Middle Miocene extension in the whole alpine arc.

中文翻译：

---

东阿尔卑斯山的低温热年代学：对构造和地形演化的影响

根据新的磷灰石裂变轨迹、锆石和磷灰石 (U-Th)/He 数据，我们限制了陶恩窗东南部和邻近的南美单位的近地表历史。多系统热年代学数据表明，年龄-海拔的相关性可能会导致对上地壳剥蚀和冷却的错误暗示。我们认为位于下盘位置的 Penninic 单元的等温翘曲是由于隆起、侵蚀和地形的形成。此外，我们建议在中中新世期间， Penninic 单元的挖掘率没有增加，因此在横向挤压期间。相比之下，从古近纪到新近纪，Austroalpine 悬壁的折返率确实增加，并且该单元的等温线没有扭曲。文献中的新锆石 (U-Th)/He 年龄以及锆石裂变径迹年龄记录了中中新世折返脉冲，该脉冲与在那段时间沉积物积累增强的时期相关。然而，在中新世/上新世边界处的沉积和折返率增加，如在西阿尔卑斯山和中阿尔卑斯山所观察到的，在东阿尔卑斯山无法观察到。这与地表抬升的气候触发相矛盾，并使得构造触发和/或深部机制更明显地解释了东阿尔卑斯山的地表抬升。结合已公布的地质年代学年龄，我们的新数据表明渐新世至晚中新世断层活动沿着构成东阿尔卑斯山主要剪切带的莫尔河谷断层活动。在这种情况下，我们建议 Katschberg-的几何和时间关系，Polinik-Möll 山谷和 Mur-Mürz 断层定义了东阿尔卑斯山东部的挤压楔。沿 Katschberg-Brenner- 和 Simplon 正断层的相同变形和裂变径迹冷却年龄表明整个高山弧的中中新世整体伸展。