亚大西洋期
亚大西洋期-
第六阶段以常绿栎类、落叶栎类、松为主的针、阔叶混交林-草原，反映气候温暖湿润（相当于亚大西洋期，Q34）。
Mixed forest of broad-leave and conifers trees-grassland , Quercus ( evergreen ), Quercus ( deciduous ) and Pinus being the main components , reflecting warm and moist climate ( Q 3 4 , Sub-Atlantic period ,) .
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本区剖面顶部的褐黄色砂质粉砂层则是在亚大西洋期（2450～1980aB.P.期间）于暖湿环境下形成的河漫滩相沉积。
However , the upper brown yellow sandy silt layer in the profile of the area was formed by alluvial flat facies deposits during the warm humid environment of Subatlantic Phase ( 2450-1980 a BP ) .