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Tectonic Setting and Structure of the Pinedale Anticline

机译：派恩代尔背斜的构造背景和构造

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摘要

The Pinedale Anticline is located in the northern portion of the Green River Basin (GRB), an area of complex structural patterns that was affected by both thin- and thick-skinned deformation between Late Jurassic and Late Eocene time. Major bounding elements include the Wind River and Gros Ventre basement blocks to the east and north, respectively, and the Western Overthrust Belt to the west (Fig. 2.1). These three elements have overridden the margins of the basin along thrust faults, suggesting that the interior of the province was affected by compression for extended periods of time. The Cache Creek (Gros Ventre block) and Wind River thrusts dip at about 3 0-45° to the north and northeast, respectively. Th'e'se faults have displaced Archean basement rocks as much as 30,000 ft vertically and 5-10 miles horizontally. Thin-skinned thrusting along the western border of the basin has emplaced highly deformed Cretaceous and Early Tertiary sedimentary rocks up to 10-15 miles laterally over Tertiary basinal deposits.
机译：派恩代尔背斜线位于格林河盆地（GRB）的北部，这是一个复杂的结构模式区域，受侏罗纪至始新世末期的薄皮和厚皮变形影响。主要边界元素包括分别位于东部和北部的Wind River和Gros Ventre地下室块体，以及位于西部的Western Overthrust Belt（图2.1）。这三个要素沿冲断层覆盖了盆地的边缘，表明该省的内部受到压缩的影响时间较长。 Cache溪（Gros Ventre地块）和Wind River逆冲断层分别向北和东北倾斜3 0-45°。这些断裂使太古宙基底岩石垂直位移了30,000英尺，水平位移了5-10英里。沿盆地西部边界的薄层逆冲作用已在第三纪盆地沉积物横向上延伸了高度变形的白垩纪和第三纪早期沉积岩，直至10-15英里。

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