Dredging mining, specifically dredge and placer mining, is a method used to extract valuable minerals from underwater or ancient streambed deposits.
Understanding Dredging Mining
Based on the provided information (dated 02-May-2024), dredge and placer mining involves the extraction of minerals containing particles of gold or other valuable minerals.
This process specifically utilizes suction dredges equipped with a nozzle that is eight inches in diameter or more. The material containing the valuable minerals is essentially vacuumed up from the deposit.
Where are Dredged Deposits Found?
The reference indicates that the placer deposits targeted by this type of mining can be located in two primary areas:
- Natural watercourses: Current rivers, streams, or other bodies of water.
- Ancient river channels: Old streambeds or channels that are now located high above current water levels.
Key Aspects of Dredging Mining
- Target Minerals: Primarily focuses on minerals containing gold or other valuable particles.
- Method: Employs suction dredges.
- Equipment: Requires a dredge nozzle of eight inches or larger.
- Location: Found in natural watercourses or ancient river channels (placer deposits).
In essence, dredging mining is a specialized form of mining that uses suction equipment to recover valuable heavy minerals concentrated in alluvial or placer deposits found in or near water bodies.
