Exam 9: Changing Coasts

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A beach is typically made up of several different parts, including the shoreline, the foreshore (the area between the high and low tide marks), the backshore (the area above the high tide mark), and the nearshore (the area of water close to the shore). The shoreline is where the land meets the water, and it can be made up of sand, rocks, or a combination of both. The foreshore is often covered in sand and may have tidal pools and rock formations. The backshore is usually sandy and may have dunes or vegetation, while the nearshore is the area where waves break and is often sandy or rocky.

Common rocks and minerals found on beaches include quartz, feldspar, mica, and hornblende. These minerals are often found in the form of sand, as they are the result of the erosion and weathering of rocks over time. Other common beach rocks include basalt, granite, and limestone. Additionally, beaches may also contain shells, coral, and other organic materials. The specific rocks and minerals found on a beach can vary depending on the location and the geology of the area.