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Gold is one of the few metals that can be obtained by panning, where a simple pan is used to separate gold from other deposits found in or near a stream bed. What two properties of gold make it possible to find gold, but not metals like copper, silver, lead, and aluminum, by panning?

Describe or sketch the main geologic settings for gold and silver deposits.

Summarize geologic and non-geologic factors that determine whether a mineralized body can be mined.

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Identify where gold is mined in the United States, and describe the type of gold deposits in each region.

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Large portions of gold in the US are extracted from rivers, and the rock layers in the subsurface in Alaska, the western side of the country, the Black Hills of South Dakota, and the eastern mines of the Appalachian Mountains. In the early years, North Carolina served as the main source of gold. They are mined from veins and placers. Nowadays, low-grade golds are being made being by-products of copper mining in the states of Arizona, New Mexico, and Utah.

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