Relationship Between Red Clay and Aqueous Accumulation in the west part of Lüliang Mountain

Key words: 
• Lüliang mountain /
• red clay /
• aqueous accumulation /
• relation

Abstract: On the basis of field geological investigation in Liulin and Baode in Shanxi province, together with other researcher’s results, the spatial distribution and material composition of Neogene strata were studied. Neogene strata can be divided into three parts in vertical: The bottom is mainly composed of
aqueous deposits, the top is aeolian red clay; the middle part is transitional layer. Further research on Liulin Section reveals the detail characteristics of red clay and aqueous deposits: coarse grain sandstone and gravel cut through red clay, but the fine mudstone parallel to red clay. The character of spatial distribution and material composition of Neogene strata are as follows: the size and thickness of queous deposits is large and thickness of red clay is small near to Luliang Mountain (such as Baode section). The size and thickness of fluvial deposits decrease form Luliang Mountains to Ordos Basin, on the contrary, thickness of red clay increase. Proportional change of red clay and aqueous accumulation transitional layer is the same, which means aqueous deposits wedge red clay base like an asymmetric wedge. The relation between red clay and aqueous accumulation can help us understand the cause of red clay and recover the uplift history of Luliang mountain and paleoclimate evolution.