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Dictionary of Wisconsin History

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Search Results for: the letter 'T', Term Type: 'Things'

Term: trap, or trapean rocks (mining)

Definition:

Ancient volcanic rocks, composed of feldspar, hornblende and augite. Basalt greenstone, amygdaloid and dolomite, are trap rocks.

View pictures relating to mining at Wisconsin Historical Images.

[Source: "Glossary of Miners' & Mineral Terms" in St. John, John R. A True Description of the Lake Superior Country ... (New York, W. H. Graham, 1846).]

71 records found

tabac (Fr.)
tackle (maritime)
tactics (Civil War)
Tadoussac
Taft-Harltey Act
Tamarois
tank top (maritime)
tanning and leather processing
taps and dies (maritime)
tassels (farming)
Taways
Tchidouakouongues
Tell Sharpshooters (Civil War)
temperance
temperance movement in Wisconsin
ten-foot (railroads)
termination
terra cotta (architecture)
terrace (farming)
territorial governor
territory
tertiary strata (mining)
theaters in Wisconsin
Third Ward fire (Milwaukee, 1892)
through platform (railroads)
Tigers (Civil War)
timber frame (architecture)
timeline of Wisconsin history, 1622-1699
timeline of Wisconsin history, 1700-1749
timeline of Wisconsin history, 1750-1783
timeline of Wisconsin history, 1784-1835
timeline of Wisconsin history, 1836-1899
timeline of Wisconsin history, 1900 -1999
Tionnontate
Titanic (Wisconsin passengers)
tobacco industry
toise (Fr.)
top-loader (logging)
topmast (maritime)
tornadoes in Wisconsin
tourism in Wisconsin
Tow-head (logging)
Tow-team (logging)
township
trade unions in Wisconsin
trainman (railroads)
transition rocks (mining)
transom (maritime)
trap, or trapean rocks (mining)
traverse
Travois (logging)
Treaty of 1825 (Prairie du Chien)
Treaty of 1827 (Butte des Morts)
Treaty of 1829 (Prairie du Chien)
Treaty of 1832 (Fort Armstrong)
Treaty of 1833 (Chicago)
Tredway Pumas (Civil War)
Tredway Rifles (Civil War)
Trees for Tomorrow
Trek Bicycle Corporation
trench (farming)
Trip-boom (logging)
triple-expansion steam engine (maritime)
Trough-roof (logging)
Troupes de la Marine (Compagnies Franches de la Ma
trunk (maritime)
tug; tugboat (maritime)
Turn (logging)
turn of the bilge (maritime)
turntable (railroads)
typewriter
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