The Sandstone Structure Is Stable

Sandstone is a kind of sedimentary rock, which is mainly cemented by various sand grains. The grain diameter is 0.05-2mm, and the sand grain content is more than 50%. It has a stable structure and is usually light brown or red. It mainly contains silicon, calcium, clay and oxidation iron. Most sandstones are composed of quartz or feldspar.

Sandstone is formed by weathering, denudation and transportation of rocks in the source area and accumulation in the basin. Rocks are composed of clastic and interstitial materials. Detrital common minerals: quartz, feldspar, muscovite, calcite, clay minerals, dolomite, oolitic chlorite, chlorite, etc. The interstitial material includes two components of cement and debris matrix. Common cements include siliceous and carbonate cements; the matrix components mainly refer to finer clay or silty matter deposited with clastics.

Sandstone is a kind of sedimentary rock, which is formed by stone grains deposited on the river bed by water erosion and accumulated for thousands of years. Later, due to the movement of the earth's crust, today's mine was formed. Although there are many varieties of sandstone in China, they are mainly concentrated in Sichuan, Yunnan and Shandong, which are the three major production areas of sandstone in China. At the same time, there are also Hebei, Henan, Shanxi, Shaanxi, etc., but the products are not well-known and influential. smaller.