Sedimentary rocks usually form from the deposition of material at the surface of the earth and under water. Sedimentation is a process that causes the minerals to settle and accumulate from the solution. Particles that form sedimentary rock by accumulation are called sediment. The sediment (the sand, mud and pebbles) that make up Sedimentary rocks come from other rocks that have been worn down by wind, rain and snow. When we find sedimentary rocks we can work out what the environment was like when those rocks were formed – old sand dunes and river channels are preserved in the rocks. Rivers, oceans, winds, and rain runoff all have the ability to carry the particles washed off of eroding rocks. Such material, called detritus consists of fragments of rocks and minerals. Common sedimentary rocks include sandstone, limestone, and shale. Common sedimentary rocks include sandstone, limestone, and shale. This information can be published in our peer reviewed journal with impact factors and are calculated using citations not only from research articles but also review articles (which tend to receive more citations), editorials, letters, meeting abstracts, short communications, and case reports. The inclusion of these publications provides the opportunity for editors and publishers to manipulate the ratio used to calculate the impact factor and try to increase their number rapidly. Impact factor plays a major role for the particular journal. Journal with higher impact factor is considered to be more important than other ones.