Vertical injectites of detachment carbonate ultracataclasite at White Mountain, Heart Mountain detachment, Wyoming
Vertical injectites of detachment carbonate ultracataclasite at White Mountain, Heart Mountain detachment, Wyoming
复制标题
怀俄明州 Heart Mountain 分离区 White Mountain 的分离碳酸盐超碎裂岩垂直注入物
作者：
J. Craddock;J. Geary;D. Malone
在始新世心山拆离体（美国怀俄明州）的层面部分，发现碳酸盐超碳酸岩（CUC）作为一个单板沿着。在CUC最厚的白色山，我们报告发现了6个脉岩，宽达1 m，从拆离体垂直侵入到上覆的麦迪逊组和大角组中约120 m。水平基底拆离岩和注射岩材料在质地、岩相学、地球化学和同位素上是相同的，含有稀疏的砂至卵石大小的安山质碎屑、各种石英-方解石熔体球粒和细粒方解石基质（95%）中的装甲火山砾。上盘位移断层泥生成的关系，以及垂直，120米，断层泥注入的存在下，使心脏山滑动异常的所有断层系统，特别是因为这个断层系统只有一个运动的插曲。
Carbonate ultracataclasite (CUC) is found as a veneer along the bedding plane portion of the Eocene Heart Mountain detachment (Wyoming, United States). At White Mountain, where the CUC is thickest, we report the discovery of six dikes, as much as 1 m wide, that were intruded vertically ∼120 m from the detachment into the overlying Madison and Bighorn Formations. The horizontal basal detachment and injectite material is texturally, petrographically, geochemically, and isotopically identical, containing sparse, sand- to pebble-sized andesitic clasts, various quartz-calcite melt spherules, and armored lapilli in a matrix (95%) of fine-grained calcite. The relationship of hanging wall displacement to fault gouge generation, and the presence of vertical, 120 m, fault gouge injectites, makes the Heart Mountain slide anomalous to all fault systems, especially as this fault system had only one episode of motion.