Abstract We apply the stylolite roughness inversion technique on sedimentary, bedding-parallel stylolites hosted in the Paleozoic carbonates of the Bighorn and Madison formations cropping out in the Bighorn Basin, Wyoming, USA. The inversion technique applied to bedding-parallel stylolites allows determination of the absolute magnitude of the vertical stress experienced at the time dissolution stops along the pressure-solution planes. At the basin scale, reconstructed vertical stress magnitudes range from 19 ± 2 MPa to 35 ± 4 MPa in the Bighorn Fm, and from 12 ± 2 MPa to 37 ± 4 MPa in the Madison Fm. Once converted into depth and compared with up-to-date basin models of burial and contractional history, the dataset highlights that bedding-parallel stylolites accommodated compaction from ca. 220 Ma until ca. 90 Ma, i.e. until stress build-up related to the Sevier contraction made the maximum horizontal principal stress high enough to overcome the vertical principal stress. This study is key to illustrate how stylolites can be used to consistently access paleoburial and to unravel both stress evolution and timing in foreland settings, and indicates that pressure-solution remains active throughout the carbonate deposition history.

中文翻译：

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前陆盆地的垂直应力历史和古埋藏被缝合线粗糙度古压力测量法揭示：来自美国怀俄明州比格霍恩盆地平行层理缝合线的见解。

摘要 我们对美国怀俄明州比格霍恩盆地出露的比格霍恩和麦迪逊地层古生代碳酸盐岩中沉积的、平行层理的缝合线应用了缝合线粗糙度反演技术。应用于平行层理缝合线的反演技术可以确定沿压力-溶液平面溶解停止时所经历的垂直应力的绝对大小。在盆地尺度上，Bighorn Fm 重建的垂直应力大小范围为 19 ± 2 MPa 至 35 ± 4 MPa，Madison Fm 为 12 ± 2 MPa 至 37 ± 4 MPa。一旦转换为深度并与最新的埋藏和收缩历史盆地模型进行比较，该数据集就强调了平行于层理的缝合线从约 220 Ma 直到大约 90毫安，即 直到与 Sevier 收缩相关的应力累积使最大水平主应力高到足以克服垂直主应力为止。这项研究是说明如何使用缝合线持续进入古墓地并解开前陆环境中的应力演化和时间的关键，并表明压力溶液在整个碳酸盐沉积历史中保持活跃。