The mineral particles found in the layers of a soil including the topsoil and subsoil layers were originally weathered from?

The mineral particles in soil layers, like topsoil and subsoil, are formed by the weathering of rocks and minerals over time. Weathering processes such as physical abrasion, chemical breakdown, and biological activity break down rocks into smaller particles that make up the soil composition. These particles are then transported and deposited through erosion and other geological processes to form soil layers.