prospecting
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- PowerPoint PPT PresentationTRANSCRIPT
IMPORTANT: KEEP SLIDES SPACIOUS AND SIMPLE-Review the information in the Unit 5 module about simplicity of PowerPoint. Convert the words on each slide to short phrases (2 to 4 words for each bullet point), so that you follow the 7x7 rule.
-Slide 3: AVOID displaying entire quotes word-for-word, unless they are quite short. (the quote on slide 5 is OK)
-Slides 7,8 & 9 are too crowded. Reduce the long points to a few words. example: -wide-mouth; -set into river
GRAPHICS-Can you add a diagram of a sluice box?
PROSPECTING Presented by
Andrew L. Johnson
Prospecting: different forms that anyone can use!
Panning And
Sluice Boxes
What is Panning? Definition: looking for gold by hand
Soil is “gently agitated… gold sinks to the bottom...
Materials with low specific gravity spill out
Materials with a high specific gravity sink to the bottom”
http://www.mine.mn/Gold_Pan.htm
How to Pan for GoldWater-dirt ratio
Panning techniques: vary
Objective: clean rocks from sediment/dirt
Ideal: square of water
Location State regulated
In streams and rivers
“Where the trout is that’s where the gold is” (Sam from Armadillo Mining Co.)
Black sand
Behind big rocks
Safety Water :
Never go alone Be aware of rapids … sink holes … flashfloods … quickly moving
water … first aid kit
Mountaineering:
Never go alone Bring food … sunscreen … water … personal protection … first aid kit
Sluice box What is a sluice box?
Wide mouth set into the river
This concentrates the gold
Flow of the river
How does a sluice box work?
Construction:
Miners moss
Riffles: low spots in the flow pressure
Process/steps 1. classify (sort) soil
2. Place into river
3. Manage water flow
4. Place soil mixture into sluice box
5. Afterwards, place into bucket for panning
Why and when to use sluice box:
State regulations vary
Use to simplify work
Saves hours of work by hand
Geodek. (1994). Gold ore. In U.S.A.
Conclusion Gold panning: fun outdoor activity!
Any age can do it!
Easy to learn!
Great family activity!
Give it a try!
And… you might hit the mother lode!!!
Happy Panning!
Works Cited Geodek. (1994). Gold ore. In U.S.A.
Gold panning. (2013, April 04). Retrieved from http://www.mine.mn/Gold_Pan.htm
Gold ore [Web Photo]. Retrieved from http://mamasminerals.com/products/Gold-Ore.html
Hill, M. (2012). Diving and digging for gold. Happy Camp: Naturegraph.
Sam. (2013, April 12). Interview by A. L. Johnson []. Prospecting.