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冰水堆积扇和冲积洪积扇有某些相似之处,但也有明显的区别。从找水的角度出发,显然更应该注意冰水堆积扇沉积物的分选性,不仅要注意堆积扇粒度和含泥量的纵向变化,还必须注意它的横向变化,而划分出冰水堆积扇沉积时可能有分选较好的主流道及其边界,实具有十分重要的意义。本文介绍了高桥冰水堆积扇的航片判释结果,并和水文地质填图,抽水试验方法和钻探结果作了比较。一、地质背景高桥扇位于峨嵋县南部燕岗地区,扇顶在高桥,中部在燕岗场,扇尾至镇子(手)场,长轴长15公里,横切扇轴宽约10公里。该扇是组成峨嵋平原南部的最大一个扇形地。
There are some similarities between ice-water accumulation fans and alluvial alluvial fans, but there are also significant differences. From the point of view of finding water, it is clear that more attention should be paid to the sorting of deposits of ice-water accumulation fan, not only to pay attention to the vertical change of grain size and mud content, but also to pay attention to its lateral change, When the fan deposits, there may be well-sorted main channels and their boundaries, which is of great significance. In this paper, the results of aerial photographs of ice accumulation in Takahashi are presented and compared with the hydrogeological mapping, pumping test methods and drilling results. I. Geological Background Gaoqiao fan is located in the Yantang area in southern Emei county. The fan roof is in Takahashi, the central is in Yangan field and the finale to the town (hand) field. The long axis is 15 kilometers and the horizontal axis is about 10 kilometers . The fan is composed of the southernmost part of the Emei plain fan sector.