Gold Painting
In the final step of panning, the granular compounds are thick and solid substances (The Arizona Geological Survey). They are made up of black magnetic compounds that are also glossy on the surface. Furthermore, the granular particles are bright yellow in color and thick.
1) The separation of light sediments or dirt, black sand, and gold is aided by centripetal force (gravity concentration). The centripetal force moves the lighter debris and deposits out of the pan as one moves the pan in a series of motions. Black sand and gold make up most of the remaining materials (Iowa Department of Natural Resources). It moves to the pan's sides because gold is less thick, allowing the miner to collect it.
2. The light materials are mainly dirty, drifted pieces of woods, sand grains, and silicon. These material are less dense, and that is why they easily fall off during panning. The black sand mainly consists of heavier iron oxide mineral known as magnetite (Iowa Department of Natural Resources). Therefore, the black sand is highly magnetic, and that is the reason why magnetic is used to separate it from gold. The black sand could also contain a nonmagnetic material commonly known as hematite. The Gold is heavy and un-reactive
The sand grains and rocks originate from bed rocks. The woods from dried fallen trees. The black sand usually comes from rocks bearing iron. The gold comes from mother lode or parent rock (National Parks Service). They fall to the streams when these rocks crack.
3. The first location of gold is usually the mother lode (parent rock) formed a long side Molten Quartz. However, the parent rock may eventually crack allowing Gold to enter river stream or creek as residual gold (UCSB Science Line). Gold has high density, and due to the high-density, it usually travels at the lowest point of the streams or river beds. It usually digs down with other elements such as magnetic sand, platinum, silver, and tin to the bedrock. Gold mostly move during times of intense floods and therefore mined areas can still be refilled. It also accumulates when a stream changes its elevation – drop suddenly over a waterfall. As the water hits the bedrock, it gouges a hole and this act as a perfect trap for large gold.
High benches along river streams can also contain gold. These areas are usually unprospected as such they may have more gold. Gold can also accumulate where two streams meet, and this is because of the rotations of the river waters and multiple whirlwinds as the streams meet each other. Gold does not move when the speed of the water current slows down or suddenly changes direction (National Parks Service). It falls out of the water and settles in undisturbed areas of the stream. Similarly, obstruction of a river can create eddy currents, and this allows gold to settle down on the seaward side of the obstacle.
4. The rock formation in Florida does provide condition required for gold. Most of the states of Florida have limestone rocks and mainly covered with water. The limestone formed and built over millions of years. It has also experienced several flooding ocean water recession that has contributed to the depositing of more sediments (Florida Center for Instructional Technology). This geology does not present a condition required for gold to be in Florida.
The only way one can find gold in Florida is through the buried treasures. The state has a rich history of ship wrecks and Spanish explorers. These ships carried gold, and therefore there is likely to ancient gold deposits in Florida (Florida Center for Instructional Technology).
Works cited
Florida Center for Instructional Technology. “Florida’s Shipwrecks and Treasures.” Exploring Florida, fcit.usf.edu/florida/lessons/shipwrecks/shipwrecks.htm.
Florida Center for Instructional Technology. “Geology of Florida.” Floripedia: Geology of Florida, fcit.usf.edu/florida/docs/g/geology.htm.
Iowa Department of Natural Resources. “Panning for Gold - in Iowa!” Iowa Department of Natural Resources, 15 Mar. 2016, www.iowadnr.gov/About-DNR/DNR-News-Releases/ArticleID/581/Panning-for-Gold-in-Iowa.
National Parks Service. “What Is Placer Gold Mining?” National Parks Service, U.S. Department of the Interior, 14 Apr. 2015, www.nps.gov/yuch/learn/historyculture/placer-mining.htm
The Arizona Geological Survey. “Mineral Resource/Gold Prospecting.” AZGS | Mineral Resources | Gold Prospecting, The Arizona Geological Survey, www.azgs.az.gov/minerals_gold.shtml.
UCSB Science Line. “Why Is Gold Found Only in Certain Areas? Is Gold Always Found in a Particular Kind of Rock?” UCSB Science Line, 30 Apr. 2001, scienceline.ucsb.edu/getkey.php?key=3264.
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