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萨拉乌苏河流域米浪沟湾地层剖面 1 50 ka BP以来古流动砂丘砂与河湖相和古土壤在粒度上具有多次显著的粗细韵律交替变化 ,粒度参数 - Mz、σ、Sk、Kg和 SC/D亦随之响应为多波动峰谷交替的态势。同时 ,粒度特征值 - Φ5、Φ1 6、Φ2 5、Φ50、Φ75、Φ84、Φ95相应地表现为非常有节奏地跳动。据此 ,将米浪沟湾剖面划分为 2 7个粒度粗细沉积旋回 ,并认为其是 1 50ka BP以来在东亚冬夏古代季风交替影响下沙漠演变的一个颇为完整的气候 -地质过程记录
In the Mi Langgou Bay stratigraphic section of the Salauwusu Basin, the ancient mobile sand dunes and the lacustrine facies and paleosol in the lithosphere profile of the Laizhou-Wuhe River Basin have alternating significant changes in grain size over the 50 ka BP with grain size parameters Mz, σ, Sk, Kg and SC / D will also respond to the trend of more volatile peaks and valleys. At the same time, the granularity eigenvalues Φ5, Φ1 6, Φ2 5, Φ50, Φ75, Φ84, Φ95 respectively appear to beat very rhythmically. Accordingly, the Miconggouwan section is divided into 27 grain-size sedimentary cycles and it is considered as a fairly complete record of climate-geological processes under the alternation of the ancient monsoon of East Asia and the ancient monsoon since 1 50ka BP