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48 Cards in this Set
- Front
- Back
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Ores |
rocks/minerals that can be extracted from the earth and process/refined for a reasonable profit |
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base metals |
copper (cu), lead (pb), tin (sn), zinc (zn) |
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1859-1865 |
central city, blackhawk, gold |
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1874-1893 |
leadville, silver boom |
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1893-1918 |
cripple creek, gold |
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1914-1919 |
climax and urad mines, gold, silver, tungsten, molybdenum |
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Summitville mine |
alamosa river, gold, cyanide and acid spilled and company ran away |
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why is coal use declining? |
natural gas is cheaper, not as pollutant, and trying to scrub bad things off coal is expensive |
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cripple creek |
still strong, meets standards, gold prices high |
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henderson mine |
still going but has slowed down |
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1920-1940 |
decrease in mining due to Depression, moly develops for automobile market, lead/zinc/silver mines near redcliff |
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1941-1945 |
WWII, strategic metals more important, US govt stops gold and silver mining for strategic |
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1945-1990 |
cold war, moly/uranium, climax/henderson for moly, cyanide technique for gold, mining of uranium ores in Western CO |
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1990-today |
summitville mine disaster ended, cripple creek/victor mines only large scale gold, increased global demand for strategic-moly back |
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Ag |
silver |
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Au |
gold |
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CO3^-2 |
carbonate ion |
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Cu |
copper |
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Fe |
Iron |
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Mo |
molybdenum |
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O |
Oxygen |
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Sn |
tin |
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Te |
Tellurium |
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W |
Tungsten |
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Zn |
Zinc |
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C |
Carbon |
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Ca |
Calcium |
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F |
Fluorine |
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H |
Hydrogen |
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Mn |
manganese |
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S |
sulfer |
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US geological survey of the 40th parallel |
Clarence King great diamond hoax (1872) first time maps used |
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us survey of explorations west of 100th meridian |
Leuitenant george m wheeler (1842-1905) sponsored by war department mostly mapping |
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us geographical and geological survey of rocky mountain region |
John Westley Powell (1834-1902) sponsored by interior department after 1870 |
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us geological and geographical survey of the territories |
Ferdinand v hayden (1829-1886) co first state with geologic map |
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clarence dutton |
powell survey isostacy hawaiian volcanos |
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samual f emmons |
king survey 1st director of rocky mtn devision of usgs founder and 1st president of us scientific society- 1882 |
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james t garner |
hayden survey chief topographer |
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grove karl gilbert |
wheeler survey geology/groundwater resources of pueblo |
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jack hillers |
powell survey friend of powell photographer among other things |
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william h holmes |
hayden survey topographic illustrator |
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william h jackson |
hayden survey photographer |
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timothy o sullivan |
king survey photographer |
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alan d wilson |
hayden survey chief topographer after garner fired first usgs topographer |
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king survey |
$387k |
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hayden survey |
$615k |
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wheeler survey |
$499k |
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powell survey |
$209k |
