What is the title of the geological practice weekly?

The content can be written as follows: Today is the second day of our geological and geomorphological practice, and there are two destinations, one is Dashihe near Xiaoshuiya, and the other is geological museum in Shangzhuangtuo.

Here comes the levee Shihe River. The place where we stand is Dashihe Canyon, which develops along the fault. Our main task here today is to observe the sedimentary characteristics of Dashihe landform and the characteristics of river terraces.

We stood on the bank of Dashi River. Because the counter-clockwise circulation faces the downstream of the river, the circulation brings sedimentary materials to the convex bank, so the concave bank is eroded and the convex bank accumulates. There are many huge gravels at the bottom of the riverbed shoal by this river. Due to the scouring of water, the gravels become very round and well sorted.

Next, the teacher took us to the front of the profile, where we can clearly see the sedimentary characteristics of river conglomerate: from upstream to downstream, the roundness is getting higher and higher, and the sorting is getting stronger and stronger. The flat gravel is arranged in imbricate shape and tends to point to the upper reaches of the river.

The last item of the first point is to know the river steps. We can clearly see that there are five terraces in Dashi River. —— Grade I is accumulation terrace, Grade II is floodplain terrace, Grade III is pedestal terrace, and Grade IV and V are erosion terraces. These five terraces are discontinuous, indicating that there have been 4-5 crustal uplifts here.