The burial and thermal history of sedimentary basins within oblique-slip mobile zones are unique and multifaceted, with irregular periods of subsidence that are closely related to compressional and shear stress. Modern basin modeling techniques can constrain the timing of tectonic events and thermal history as well as determine rates and magnitudes of basin subsidence, which in turn, helps guide exploration for hydrocarbons. The work presented here is the first modern basin modeling effort in the Ardmore Basin in southern Oklahoma. The study uses 12 one-dimensional burial history models to evaluate the thermal maturity of the Late Devonian (Famennian)–Early Mississippian (Tournaisian) Woodford Shale and the Early–Late Mississippian (Tournaisian–Serpukhovian) Caney Shale hydrocarbon source rocks. All models display a similar tectonic evolution with subsidence during and following Cambrian Iapetan rifting, tectonic stability during a Silurian–Late Mississippian passive margin phase, Pennsylvanian synorogenic subsidence, Permian post-orogenic subsidence, Late Permian–Early Cretaceous regional uplift and unroofing, and Early Cretaceous–Paleogene subsidence of the Gulf of Mexico Basin. Episodic Pennsylvanian subsidence appears to have been synchronous with sequential uplift of the Wichita Uplift and the Arbuckle Uplift in response to major left-lateral transpression. Rapid and high magnitude Late Mississippian–Permian subsidence (>250 m/m.y.; 820 ft/m.y. in basin synclines) suggests the Ardmore Basin functioned episodically as an elevator basin, which is typical of sedimentary basins in oblique-slip mobile zones. The Devonian–Mississippian shale section has a broad range of thermal maturity (vitrinite reflectance, 0.40–2.00% R), which is strongly dependent on structural position. Isoreflectance lines are subhorizontal and cross-cut structure, indicating post-kinematic thermal maturation in which strata are thermally immature in uplifts and thermally overmature in the deepest synclines. The post-kinematic pattern is a product of a rapid, early phase of synkinematic thermal maturation that has been obscured by a prolonged period of post-kinematic thermal maturation. Variations in basal heat flow, structural history, and general variability of hydrocarbon source rock organic composition, particularly at low thermal maturity levels, have resulted in a modest degree of scatter in the vitrinite reflectance-depth data.

中文翻译：

---

会聚斜滑移动带盆地的埋藏和热历史模拟：俄克拉荷马州南部阿德莫尔盆地的案例研究

斜滑移动带内沉积盆地的埋藏和热历史是独特且多方面的，沉降周期不规则，与压剪应力密切相关。现代盆地建模技术可以限制构造事件和热历史的时间，并确定盆地沉降的速率和幅度，这反过来又有助于指导碳氢化合物的勘探。这里展示的工作是俄克拉荷马州南部阿德莫尔盆地的第一个现代盆地建模工作。该研究利用12个一维埋藏史模型评估了晚泥盆世（法门世）—早密西西比世（图尔奈阶）Woodford页岩和早—晚密西西比世（图尔奈阶—Serpukhovian）Caney页岩烃源岩的热成熟度。所有模型都显示出类似的构造演化，包括寒武纪 Iapetan 裂谷期间和之后的沉降、志留纪 - 密西西比晚期被动边缘阶段的构造稳定性、宾夕法尼亚期同造山沉降、二叠纪造山后沉降、晚二叠世 - 早白垩世区域隆起和揭顶以及早期墨西哥湾盆地白垩纪-古近纪沉降。宾夕法尼亚州的间歇性沉降似乎与威奇托隆起和阿巴克尔隆起的连续隆升是同步的，这是对主要左侧压裂的反应。密西西比纪晚期-二叠纪快速且高强度的沉降（>250 m/my；盆地向斜中为 820 ft/my）表明阿德莫尔盆地间歇性地充当升降盆地，这是斜滑移动区沉积盆地的典型特征。泥盆系-密西西比系页岩剖面具有较宽的热成熟度范围（镜质体反射率，0.40-2.00% R），这在很大程度上取决于构造位置。等反射线是近水平和横切结构，表明运动后热成熟，其中地层在隆起中热未成熟，在最深的向斜中热过成熟。后运动模式是联运动热成熟快速、早期阶段的产物，该阶段已被长时间的后运动热成熟所掩盖。基底热流、构造历史和烃源岩有机成分的总体变化，特别是在低热成熟度水平下，导致镜质体反射深度数据出现适度的分散。