英语翻译The coalfields of southwest Virginia lie in the Appala-
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英语翻译
The coalfields of southwest Virginia lie in the Appala- chian Plateau physiographic province.The area is charac- terized by a deeply dissected,mature topography of V- shaped valleys with steep slopes and narrow ridges.The landforms were shaped by the erosion of a high plateau of sedimentary origin.These sedimentary rocks,which range from Cambrian through Pennsylvanian in age,were uplifted as a block,with minimal deformation compared to the Valley and Ridge physiographic province.Accord- ingly,geologic strata remain nearly level to gently slop- ing,except near the edge of the eastern thrust block that marks the beginning of the Valley and Ridge province.In northern Dickenson County near the Buchanan Coun- ty border,the Russell Fork fault bisects the Virginia coal- fields (Fig.1).
The coalfields of southwest Virginia lie in the Appala- chian Plateau physiographic province.The area is charac- terized by a deeply dissected,mature topography of V- shaped valleys with steep slopes and narrow ridges.The landforms were shaped by the erosion of a high plateau of sedimentary origin.These sedimentary rocks,which range from Cambrian through Pennsylvanian in age,were uplifted as a block,with minimal deformation compared to the Valley and Ridge physiographic province.Accord- ingly,geologic strata remain nearly level to gently slop- ing,except near the edge of the eastern thrust block that marks the beginning of the Valley and Ridge province.In northern Dickenson County near the Buchanan Coun- ty border,the Russell Fork fault bisects the Virginia coal- fields (Fig.1).
该煤田西南弗吉尼亚在于,在阿巴拉-洪健高原地形省.该地区的特点,terized由一个深刻的解剖,成熟的地形,V型山谷,与陡峭的山坡和狭窄的山脊.地貌被塑造的侵蚀一个高原的沉积成因.这些沉积岩,从寒武系通过pennsylvanian在年龄,被抬升1座,最小的变形相比,山谷和岭地形省.协议- ingly ,地层保持近水平轻轻边坡英,除了附近的边缘,东部推力块标志着山谷和岭省.在北部狄金森县附近的布坎南个国家的边界性,罗素叉故障bisects维吉尼亚州煤场(图1 )
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