Which mechanism concentrates heavy mineral sands on beaches?

💡 Explanation

Heavy mineral sands concentrate due to stream processes, specifically selective entrainment. Water currents readily carry lighter quartz sands farther up the beach because wave action preferentially washes away lighter particles; therefore, denser minerals remain behind, rather than dissolving or flocculating.

• Which volcanic event is inhibited when overburden pressure exists?
• Which erosional process most directly contributes to the formation and enlargement of a cirque?
• Which consequence results when effusive lava flows over glacial ice?
• Which outcome accelerates after plant root death spurs invertebrate activity?
• Which risk increases when reduced sediment supply hinders sand deposition behind a developing coastal barrier island?
• Which process drives the formation of an arête between two cirques after glacial retreat?