省内盆地多为红盆，岩性以砂砾岩为主，其次为砾岩和砂岩，胶结物以钙质和铁质为主。
Basins in Jiangxi province mostly are red basins dominated by sandy conglomerate, and some conglomerate and sandstone with calcareous and ferruginous cementation.
断层带风化强烈，断层角砾岩等呈现松散的土状，且因铁质琳滤而成黄褐色。
Strong weathering occurs in the fault zone, in which the fault breccias present in loosed soil like and was tinted into tawny color by ferrous leaching.
第三段以凝灰岩、铁质白云岩、晶屑凝灰岩、火山角砾岩为主。
The thrid part are tuff, ferruginous dolomite, crystal tuff and volcanic breccia.
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