Archaeological discoveries

What are three methods of indigenous mining?

1. Placer Mining

Placer Mining or sometimes called pan Mining is a method of extracting minerals from alluvial deposits. Alluvial deposits are formed when sediments are deposited by flowing water, such as in rivers and streams. Placer mining is typically done by panning, which involves using a pan to separate the heavy minerals from the lighter sediments. The heavy minerals, such as gold, silver, and platinum, will settle to the bottom of the pan, while the lighter sediments will be washed away.

2. Lode Mining

Lode Mining is a method of extracting minerals from veins or lodes. Veins are narrow, tabular bodies of ore that are formed when minerals are deposited from hydrothermal solutions. Lode mining is typically done by underground mining, which involves digging tunnels and shafts to reach the ore body. Once the ore body is reached, the ore is extracted using various methods, such as blasting, drilling, and shoveling.

3. Open Pit Mining

Open Pit Mining is a method of extracting minerals from the Earth's surface. Open pit mining is typically done when the ore body is located close to the surface and is large enough to be economically mined. The ore is extracted by digging a large open pit, and then using trucks and shovels to remove the ore. Open pit mining can be a very destructive process, as it can leave behind large scars on the landscape.