A. PROCESS OF PLACER GOLD FORMATION

The process of placer gold formation occurs as follows:

1. Erosion: Gold-bearing rocks or veins are subjected to weathering and erosion over time. Geological forces, such as water, ice, wind, and gravity, break down these rocks and release the gold particles.

2. Transportation: The liberated gold particles are transported by water, often in the form of flakes, grains, or small nuggets. They are carried downstream by rivers and streams, along with other sediments and minerals.

3. Deposition: As the water’s speed decreases or encounters obstacles like rocks or bends in the river, it loses its carrying capacity and begins to deposit the heavier gold particles. These deposits settle in low-velocity areas, forming what are known as placer deposits.

Placer gold can vary in size, from tiny specks of gold dust to larger nuggets. The size and concentration of placer gold deposits can vary widely depending on factors like the geology of the area, the history of erosion and deposition, and the specific characteristics of the waterway.

Here are some common locations where placer gold deposits can be found:

B.  LOCATIONS OF PLACER GOLD DEPOSITS

1. Riverbeds and Streams: Many placer gold deposits are found in the gravels and sediments of rivers and streams. Gold is heavy and settles out of moving water more easily than lighter materials, so it tends to accumulate in the bedrock cracks and crevices, as well as in the gravels and sands along the riverbanks.