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This map layer includes refractory, abrasive, and other industrial minerals operations in the United States. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey, and the operations are those considered active in 2003 and surveyed by the MIT. This is a revised version of the June 2004 map layer.
Tags: abrasive minerals,
bentonite,
boron,
diatomite,
economy, All tags...
feldspar,
garnet,
gemstones,
kyanite,
minerals,
minerals operations,
mines,
mining operations,
olivine,
processing plants,
pyrophyllite,
refractory minerals,
silica,
talc,
trona,
wollastonite,
zeolites,
zircon, Fewer tags
This map layer includes crushed stone operations in the United States. These data were obtained from information reported voluntarily to the USGS by the aggregate producing companies. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey, and the operations are those considered active in 2002 with production greater than 50,000 tons, which are non-government, non-portable, and surveyed by the MIT. This is a replacement for the January 2001 map layer.
This data contains placer district boundaries in Alaska. Districts refer to the name of a group of geologically and geographically related placer deposits, as derived from published sources or from general usage. Economic and significant heavy metals are reported for each district.
Tags: alaska,
deposits,
economy,
geoscientific information,
minerals, All tags...
mines,
mining,
placer,
placer district,
resources,
significant metalliferous placer districts,
u.s. geological survey bulletin 1786, Fewer tags
This map layer includes agricultural minerals operations in the United States. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey. The mineral operations are plants and (or) mines surveyed by the MIT and considered currently active in 2003. This is a replacement for the June 2004 map layer.
Tags: economy,
magnesium compounds,
minerals,
minerals operations,
mines, All tags...
mining operations,
peat,
phosphate,
potash,
processing plants,
sulfur,
vermiculite, Fewer tags
This data set includes mineral and metal operations in the United States. The data represent commodities monitored by the National Minerals Information Center of the USGS, and the operations included are those considered active in 2003 and surveyed by the MIT. Additional mineral and metal operations information can be obtained from the U.S. Geological Survey National Minerals Information Center web page at: <http://minerals.usgs.gov/minerals/>
Tags: aluminum,
asbestos,
ball clay,
barite,
bentonite, All tags...
beryllium,
bismuth,
boron,
bromine,
cadmium,
cement,
chromium,
cobalt,
columbium,
copper,
diatomite,
dimension stone,
feldspar,
fullers earth,
garnet,
gemstones,
gold,
gypsum,
industrial sand and gravel,
iron ore,
iron oxide,
kaolin,
kyanite,
lead,
lime,
lithium,
magnesite,
magnesium compounds,
manganese,
mercury,
metal operations,
metals,
mica,
mineral operations,
minerals,
mines,
mining operations,
molybdenum,
nickel,
niobium,
niobium (columbium),
olivine,
peat,
perlite,
phosphate rock,
platinum-group metals,
potash,
pumice,
rare-earth metals,
rhenium,
rubidium,
salt,
selenium,
silica,
silicon,
silver,
soda ash (trona),
sodium sulfate,
strontium,
sulfur,
synthetic mullite,
talc,
tellurium,
thorium,
tin,
titanium metal,
titanium mineral,
titanium pigment,
trona (soda ash),
tungsten,
vanadium,
vermiculite,
wollastonite,
zeolites,
zinc,
zircon, Fewer tags
This map layer includes ferrous metal mines in the United States. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey, and the operations are those considered active in 2003 and surveyed by the MIT. This is a replacement for the November 1998 map layer.
Tags: cobalt,
economy,
ferrous metals,
iron,
minerals, All tags...
minerals operations,
mines,
mining operations,
molybdenum,
nickel,
processing plants,
rhenium, Fewer tags
This data contains mining district boundaries in Alaska. Districts refer to the name of a group of geologically and geographically related areas, as derived from published sources or from general usage.
This map layer includes construction minerals operations in the United States. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey. The mineral operations are plants and (or) mines surveyed by the MIT and considered currently active in 2003. Excluded are construction sand and gravel and crushed stone. This is a replacement for the June 2004 map layer.
Tags: ball clay,
cement,
common clay and shale,
construction minerals,
dimension stone, All tags...
economy,
gypsum,
mica,
minerals,
minerals operations,
mines,
mining operations,
perlite,
processing plants,
pumice, Fewer tags
This map layer includes nonferrous metal mines in the United States. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey, and the operations are those considered active in 2003 and surveyed by the MIT. This is a replacement for the October 2003 map layer.
Tags: beryllium,
copper,
economy,
germanium,
gold, All tags...
lead,
minerals,
minerals operations,
mines,
mining operations,
nonferrous metals,
processing plants,
silver,
zinc, Fewer tags
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