How Aggregates Are Made Rogers Group works with geologists to locate large sources of aggregate in the earth called reserves. Geologists are scientists who specialize in the study of earth sciences and rocks and minerals. Usually, companies will take test samples from the rock core with a large drill.
Geologists help analyze the stone's quality and structure.
Second, a quarry must receive appropriate zoning and permits. Throughout the operation of the quarry, mining companies must follow laws governing safety and the environment. Next, dozers remove the top layer of grass, dirt and rock called overburden. Near the rocks outer edge, long holes are drilled downward and loaded with explosive. The rock is blasted to loosen and break the rock into pieces.