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英语翻译North of this shear fault the strata are rela- tively un

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英语翻译
North of this shear fault the strata are rela- tively undisturbed.The remaining area of the Virginia coalfields occurs within the Pine Mountain overthrust block.This geologic unit is bound on the southeast by the Valley and Ridge province,and on the northeast by Pine Mountain.Further south,this thrust sheet extends into Tennessee and terminates near Caryville.The Pine Mountain thrust sheet moved as a unit to the northeast,resulting in displacements of several miles laterally but only tens of feet vertically.A number of shear faults,oc- casional deep fracture zones,and numerous shallow frac- ture zones are contained within this thrust sheet,prima- rily as a result of geologic movement.All of the coal-bearing formations mined in Virginia’s southwestern coalfields are Pennsylvanian.These units consist of alternating layers of quartzarenite,sandstone,sandy shale and shale,thin layers of clay and underclay,and coal seams.At least 27 major seams are present.
这个剪缺点北部地层是真正tively未受干扰的.弗吉尼亚煤田的剩余的区域在杉木山overthrust块之内发生.这个地质单位一定在东南部由谷和里奇省和在东北部由Pine Mountain.进一步南部,这推力板料延伸到田纳西并且在Caryville附近终止.杉木山推了作为单位侧向地,但是只被移动的板料向东北部,造成几英里的位移十倍脚垂直.一定数量的剪缺点、oc- casional深刻的破裂区域和许多浅frac- ture区域在这推力板料,prima-内包含rily由于地质运动.所有coal-bearing形成在Virginia’s西南煤田开采了是宾夕法尼亚州人.这些单位包括交替quartzarenite、砂岩、含沙页岩和页岩,黏土和underclay和煤层薄层层数.至少27个主要缝存在.