The middle Jurassic series Yanan Formation of in Lingwu coalfield is a lacustrine deltaic deposit.
灵武煤田的中侏罗统延安组含煤岩系为一湖泊三角洲沉积。
Zaoquan mining district of Lingwu coalfield is located in the west margin of Ordos Basin. Yan 'an Formation coal bearing measures formed in environment of lacustrine delta system.
鄂尔多斯盆地西缘灵武煤田延安组是在湖泊三角洲体系条件下形成的一套含煤岩系。
Zaoquan mining district of Lingwu coalfield is located in the west margin of Ordos Basin. Yan 'an Formation coal bearing measures formed in environment of lacustrine delta system.
鄂尔多斯盆地西缘灵武煤田延安组是在湖泊三角洲体系条件下形成的一套含煤岩系。
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