Weathering Process. The weathering process occurs when rocks are exposed to the hydrosphere (water) and atmosphere (air).  These agents can change the physical and chemical characteristics of rocks.  As rocks are broken down (weathered), they can be classified as different types of sediments, which are: o boulders, cobbles, pebbles, sand, silt, clay, and colloids. See page 6 of the Earth Science Reference Tables explains the sizes of each of these sediments.
Lagoon is a water body that is formed near coastal areas. It is shallow and has a small link with sea or the ocean though it is also separated from the ocean water with reefs or a low sandbank. Arial view of a lagoon.
While patch reefs have sometimes been described as a fourth coral reef type , such comparisons are clearly not appropriate. Rather, patch reefs are more properly considered regular micro-scale reef features of all three of the macro-scale reef types first described by Darwin-fringing reefs, atolls and barrier reefs.HAT IS A LAGOON? - A lagoon-as used in the context of coral reef typology-refers to a comparatively wide band of water that lies between the shore and the main area of reef development, and contains at least some deep portions.