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The Lower Permian Wangjiapu coal measures and the Upper Permian Leping coal measures in Northwest Jiangxi were formed in lacustrine environment in the epicontinental sea area.
赣西北地区下二叠统王家铺煤组和上二叠统乐平煤组，形成于陆缘海的湖泊沼泽环境。
Zhejiang borders Jiangsu province and Shanghai municipality to the north, Anhui province to the northwest, Jiangxi province to the west, and Fujian province to the south;
浙江省的兄弟城市江苏和上海位于其北面，安徽位于其西北，江西在它的西部，福建位于其南部；
Hunan borders Hubei in the north, Jiangxi to the east, Guangdong to the south, Guangxi to the southwest, Guizhou to the west, and Chongqing to the northwest.
湖南省北界湖北，东邻江西，南接广东，西倚贵州，西南与广西接壤，西北与重庆接壤。
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