高纬度及中纬度高山有过古冰川活动的地区,保存着冰川沉积及冰川遗迹,这些地区第四纪古气候的研究,冰川沉积和冰川地形就成为主要标志。秦岭以北黄土区是中纬度干旱及半干旱高原地区,这里一直没有发现过冰川及冰缘现象的遗迹。在其南缘的秦岭山区虽有冰川遗迹,但其分布范围和冰期次数,目前尚不清楚,因之本区第四纪古气 Glaciers and high glaciers in the high latitudes and mid-latitudes have preserved glacial deposits and glacial relics. Quaternary paleoclimate research, glacial deposits and glacier topography in these areas have become the major symbols. The loess area north of the Qinling Mountains is mid-latitude arid and semi-arid plateau where no remains of glaciers and ice margins have been found. Although there are glacial relics in the Qinling Mountains in the southern margin, its distribution range and number of glaciers are not yet clear, because of the ancient Quaternary gas