List of Earth MRI focus areas with other mineral = tantalum

113 focus areas match these criteria.

Focus area Region States Mineral Systems Deposit types Commodities
Central Brooks Range Sn-W Alaska Alaska Porphyry Sn (granite-related) Greisen; Pegmatite LCT; Porphyry/skarn molybdenum
Darby-Hogatza REE Alaska Alaska Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Darby-Hogatza Sn-W Alaska Alaska Porphyry Sn (granite-related) Greisen; Pegmatite LCT; Porphyry/skarn molybdenum
Kokrines-Hodzana REE Alaska Alaska Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; lead; molybdenum; silver; thorium; uranium; yttrium
Kokrines-Hodzana Sn-W Alaska Alaska Porphyry Sn (granite-related) Greisen; Pegmatite LCT; Porphyry/skarn molybdenum
Kuskokwim-White Mountains Sn-W Alaska Alaska Porphyry Sn (granite-related) Greisen; Pegmatite LCT; Porphyry/skarn molybdenum
Lost River-Kougarok Sn-W Alaska Alaska Porphyry Sn (granite-related) Greisen; Pegmatite LCT; Porphyry/skarn molybdenum
Northern Alaska Range REE Alaska Alaska Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Northern Alaska Range Sn-W Alaska Alaska Porphyry Sn (granite-related) Greisen; Pegmatite LCT; Porphyry/skarn molybdenum
Porcupine River REE Alaska Alaska Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; phosphate; thorium; uranium; yttrium
Porcupine River Sn-W Alaska Alaska Porphyry Sn (granite-related) Greisen; Pegmatite LCT; Porphyry/skarn molybdenum
Southeastern Alaska REE Alaska Alaska Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; phosphate; thorium; uranium; yttrium
Western Alaska Range REE Alaska Alaska Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Yukon-Tanana REE Alaska Alaska Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Yukon-Tanana Sn-W Alaska Alaska Porphyry Sn (granite-related) Greisen; Pegmatite LCT; Porphyry/skarn molybdenum
Animikie Red Ace Pegmatite North Central Wisconsin Porphyry Sn (granite-related) Pegmatite LCT (none)
Archean gneiss terranes North Central Iowa; Michigan; Minnesota; Nebraska; South Dakota; Wisconsin Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Archean gneiss terranes North Central Iowa; Michigan; Minnesota; Nebraska; South Dakota; Wisconsin Porphyry Sn (granite-related) Pegmatite LCT; Porphyry/skarn (none)
Humboldt Granite North Central Michigan Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Minnesota Quetico Province North Central Minnesota; North Dakota Porphyry Sn (granite-related) Pegmatite LCT; Porphyry/skarn (none)
Neoarchean Greenstone Belts of Minnesota, North Dakota and South Dakota North Central Minnesota; North Dakota; South Dakota Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Neoarchean Greenstone Belts of Minnesota, North Dakota and South Dakota North Central Minnesota; North Dakota; South Dakota Porphyry Sn (granite-related) Pegmatite LCT (none)
Northeast Iowa intrusive complex (NEIIC) North Central Iowa; Minnesota; Wisconsin Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Southern Black Hills pegmatites North Central South Dakota Porphyry Sn (granite-related) Pegmatite LCT feldspar; mica
Southern Complex pegmatites North Central Michigan Porphyry Sn (granite-related) Pegmatite LCT (none)
Wausau Syenite Complex (WSC) North Central Wisconsin Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; yttrium
Wolf River Batholith North Central Wisconsin Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Brunswick pegmatite field Northeast Maine Porphyry Sn (granite-related) Pegmatite LCT feldspar; mica
Catoctin Formation metavolcanics in Maryland Northeast Maryland Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Connecticut pegmatites Northeast Connecticut Porphyry Sn (granite-related) Pegmatite LCT feldspar; gold; mica; silver
Eastern Piedmont Devonian granitoids Northeast Maryland Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Grafton Pegmatite District Northeast New Hampshire Porphyry Sn (granite-related) Pegmatite LCT feldspar; gold; mica; silver
Keene Pegmatite District Northeast New Hampshire Porphyry Sn (granite-related) Pegmatite LCT feldspar; gold; mica; silver
Litchfield syenite Northeast Maine Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Massachusetts pegmatite Northeast Massachusetts Porphyry Sn (granite-related) Pegmatite LCT feldspar; mica
Oxford County pegmatite field Northeast Maine; New Hampshire Porphyry Sn (granite-related) Pegmatite LCT feldspar
Parker Mountain pegmatite Northeast New Hampshire Porphyry Sn (granite-related) Pegmatite LCT feldspar; mica
Raymond Pegmatite District Northeast New Hampshire Porphyry Sn (granite-related) Pegmatite LCT feldspar; mica
Topsham pegmatite district Northeast Maine Porphyry Sn (granite-related) Pegmatite LCT feldspar; gems; gold; mica; silver
White Mountains pegmatites Northeast Maine; New Hampshire Climax-type Pegmatite NYF feldspar; mica; yttrium
Adel Mountain Volcanics Northwest Montana Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; gold; thorium; uranium; yttrium
Bearpaw Mountains-Eagle Buttes Northwest Montana Magmatic REE Carbonatite; Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; gold; lead; magnetite; phosphorus; silver; thorium; uranium; vermiculite; yttrium
Butte pegmatite belt Northwest Montana Climax-type Pegmatite NYF copper; lead; silver; yttrium
Castle stock Northwest Montana Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Clearwater County beryllium Northwest Idaho Climax-type Pegmatite NYF yttrium
Crazy Mountain Volcanics Northwest Montana Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; gold; iron; lead; silver; thorium; uranium; yttrium
Cretaceous heavy-mineral placer sandstones (black sandstones) Northwest; North Central; Rocky Mountains Montana; North Dakota; South Dakota; Wyoming Placer Columbite/tantalite; Gold; Ilmenite/rutile/leucoxene; Monazite/xenotime; Uraninite, autunite-group minerals; Wolframite/scheelite; Zircon gold; iron; thorium; uranium; yttrium
Golden Horn batholith Northwest Washington Climax-type Pegmatite NYF yttrium
Hall Mountain mineral district Northwest Idaho Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Highwood Mountains Northwest Montana Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Idaho Critical Mineral Placers Northwest Idaho Placer Columbite/tantalite; Garnet; Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon garnet; thorium; yttrium
Latah County beryllium Northwest Idaho Reduced intrusion-related Pegmatite LCT (none)
Little Belt Mountains Northwest Montana Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Midnite Northwest Washington Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Moccasin Mountains Northwest Montana Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
NW Idaho-NE Washington beryllium Northwest Idaho; Washington Porphyry Sn (granite-related) Pegmatite LCT (none)
Philips Lake Northwest Washington Porphyry Sn (granite-related) Pegmatite LCT (none)
Roaring River beryllium Northwest Idaho Climax-type Pegmatite NYF yttrium
Sawtooth batholith Northwest Idaho Climax-type Pegmatite NYF lead; molybdenum; silver; yttrium
Spokane Mountain Northwest Washington Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Sweet Grass Hills Northwest Montana Magmatic REE Carbonatite; Fluorspar; Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; gold; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium
Washington Heavy Mineral Placers Northwest Washington Placer Columbite/tantalite; Gold; Ilmenite/rutile/leucoxene; Monazite/xenotime; PGE; Zircon thorium; yttrium
Blue Butte, Bonus Extension Group, Mica-Beryl Mine, Rock King Prospect, Silver Rocker Group Rocky Mountains Colorado Climax-type Pegmatite NYF yttrium
Brown Derby Rocky Mountains Colorado Porphyry Sn (granite-related) Pegmatite LCT mica
Centennial Cone Prospect Rocky Mountains Colorado Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; feldspar; mica; thorium; uranium; yttrium
Central Laramie Range Rocky Mountains Wyoming Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Climax Mica Lode, Lower South Mine, Rose Dawn Mine, Star Girl Mine, Upper South Mine Rocky Mountains Colorado Climax-type Pegmatite NYF yttrium
Copper Mountain Rocky Mountains Wyoming Porphyry Sn (granite-related) Greisen; High sulfidation; Pegmatite LCT; Porphyry/skarn copper; gold; silver
Crystal Mountain pegmatites Rocky Mountains Colorado Climax-type Greisen; Pegmatite NYF feldspar; mica; molybdenum; uranium; yttrium
Eight Mile Park district Rocky Mountains Colorado Climax-type Pegmatite NYF feldspar; mica; quartz; yttrium
Medicine Bow Mountains Rocky Mountains Colorado; Wyoming Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Meyers Ranch Rocky Mountains Colorado Porphyry Sn (granite-related) Pegmatite LCT feldspar; mica; thorium; uranium
Pikes Peak, St. Peter’s Dome (Proterozoic) Rocky Mountains Colorado Climax-type Greisen-S-R beryllium; Pegmatite NYF gold; lead; molybdenum; silver; thorium; uranium; yttrium
Sierra Madre Rocky Mountains Colorado; Wyoming Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; vermiculite; yttrium
Sweetwater Arch Rocky Mountains Wyoming Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Twin Cedars, Big Bertha, South Platte pegmatites Rocky Mountains Colorado Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; feldspar; quartz; thorium; uranium; yttrium
Wet Mountains Rocky Mountains Colorado Magmatic REE Carbonatite; Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; phosphorus; thorium; vermiculite; uranium; yttrium
Winfield Peak-Antero Rocky Mountains Colorado Climax-type Pegmatite NYF; Porphyry molybdenum gold; molybdenum; silver; yttrium
Granite Mountain syenite South Central Arkansas Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Kansas Lamproite South Central Kansas Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; mica; thorium; uranium; yttrium
Alabama pegmatite zone Southeast Alabama Porphyry Sn (granite-related) Pegmatite LCT (none)
Kings Mountain pegmatite district Southeast North Carolina; South Carolina Porphyry Sn (granite-related) Pegmatite LCT (none)
Little Friar Mountain pegmatite Southeast Virginia Porphyry Sn (granite-related) Pegmatite LCT (none)
North Carolina pegmatite zone Southeast North Carolina; Tennessee Porphyry Sn (granite-related) Pegmatite LCT (none)
Spruce Pine Area Southeast North Carolina Porphyry Sn (granite-related) Pegmatite LCT feldspar; high purity quartz; mica
Virginia pegmatite zone-Amelia County Southeast Virginia Porphyry Sn (granite-related) Pegmatite LCT feldspar; high purity quartz; mica
Zirconia Pegmatite Mining District Southeast North Carolina; South Carolina Porphyry Sn (granite-related) Pegmatite LCT feldspar
New Mexico Tertiary alkaline rocks and REE veins Southwest New Mexico Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Arizona-New Mexico Cretaceous placers Southwest Arizona; Colorado; New Mexico Placer Columbite/tantalite; Ilmenite/rutile/leucoxene; Monazite/xenotime; Uraninite, autunite-group minerals; Zircon thorium; uranium; yttrium
Birch Creek Southwest California Porphyry Sn (granite-related) Greisen; Pegmatite LCT copper; gold; lead; silver
Cal Blue Mine Southwest California Porphyry Sn (granite-related) Pegmatite LCT (none)
Cave Peak Southwest Texas Climax-type Porphyry molybdenum copper; molybdenum
Central Texas pegmatites Southwest Texas Climax-type Pegmatite NYF feldspar; yttrium
Gallinas Mountains Mining District Southwest New Mexico Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; gold; iron; lead; silver; thorium; uranium
Granite Peak district Southwest Utah Climax-type Fluorspar; Greisen; Pegmatite NYF lead; molybdenum; silver; yttrium
Kaiparowits placer Southwest Utah Placer Columbite/tantalite; Ilmenite/rutile/leucoxene; Monazite/xenotime; Uraninite, autunite-group minerals; Wolframite/scheelite; Zircon thorium; uranium; yttrium
La Paz Southwest Arizona Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
McDermitt Caldera Southwest Nevada; Oregon Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
New Mexico Cambrian alkaline rocks and REE veins Southwest New Mexico Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; gold; iron; lead; molybdenum; silver; thorium; uranium; yttrium
New Mexico Proterozoic alkaline rocks and pegmatites Southwest New Mexico Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Pajarito Mountain Southwest New Mexico Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; iron; thorium; uranium; yttrium
Peninsular Ranges pegmatites Southwest California Porphyry Sn (granite-related) Pegmatite LCT boron
Petaca placers Southwest New Mexico Placer Columbite/tantalite; Monazite/xenotime; Zircon thorium; yttrium
Rociada Southwest New Mexico Porphyry Sn (granite-related) Pegmatite LCT (none)
Round Top Southwest Texas Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Texas Cretaceous intrusions Southwest Texas Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Texas-New Mexico alkaline belt Southwest New Mexico; Texas Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; gold; iron; lead; silver; thorium; uranium
Texas-New Mexico alkaline belt Southwest New Mexico; Texas Climax-type Porphyry molybdenum molybdenum
Tintic-Deep Creek belt Southwest Nevada; Utah Climax-type Distal disseminated silver-gold; Fluorspar; Greisen; Greisen-S-R beryllium; Lithocap alunite, Lithocap kaolinite; Pegmatite NYF; Polymetallic sulfide S-R-V-IS; Volcanogenic beryllium; Volcanogenic uranium cadmium; copper; gold; halloysite clay; iron; lead; molybdenum; silver; uranium; zeolite
Toiyabe Peaks Southwest Nevada Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Trout Creek district Southwest Utah Climax-type Greisen; Pegmatite NYF; Polymetallic sulfide S-R-V-IS gold; lead; molybdenum; silver; yttrium
White Picacho Southwest Arizona Porphyry Sn (granite-related) Pegmatite LCT copper; feldspar; gold; lead; mica; molybdenum; silver
Wind Mountain (Cornudas Mountains) Southwest New Mexico Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium