Journal of Palaeogeography(Chinese Edition)-Channel: SPECIAL ISSUE ABOUT “Triassic Yanchang Formation in Ordos Basin” Channel: SPECIAL ISSUE ABOUT “Triassic Yanchang Formation in Ordos Basin” http://www.gdlxb.cn/gdlxb EN-US http://www.gdlxb.cn/gdlxb/EN/current.shtml http://www.gdlxb.cn/gdlxb 5