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deposits - Excel

VIEWS: 57 PAGES: 5

									                                                      deposits


             USGS_classification description percieved_age_of_deposit
type_of_deposit        USGS_name                                                                   Tectonic_setting
                                                               alteration host_rock associated_deposits
Mo-W-Be contact-metasomatic deposits
             14a       W-Be skarns               Probably 35–25 Ma
                                    Mo-W-Be skarns and carbonate-hosted deposits
surfical uranium deposits
             none      none                      Miocene–Pliocene
carbonatite 10                                   400–600 Ma, one about 22 Ma
                       carbonatite alkaline intrusion
REE-Th-U veins
             10b       thorium-rare-earth veins  400–600 Ma, 47–25 Ma
                                    thorium-rare-earth veins associated with alkaline intrusion
Great Plains margin alkalic margin fluorite 47–25 Ma with alkaline intrusion
             IM11b                  fluorite veins associated
pegmatite IM13h                                  pegmatite, complex Ma, 1100–1200 ? Ma
                                    Proterozoic Probably 1450–1400 and/or zoned
                       complex/zoned pegmatites
Be pegmatite IM13a     Be pegmatite Proterozoic Probably 1450–1400 Ma, 1100–1200 ? Ma
                                                 pegmatite, prodominantly Be
Li pegmatite IM13b     Li pegmatite Proterozoic Probably 1450–1400 Ma, 1100–1200 ? Ma
                                                 pegmatite, prodominantly lithium
Nb-Ta pegmatite
             IM13c                  Proterozoic Probably 1450–1400 Ma, 1100–1200 ? Ma
                       Nb-Ta pegmatite           pegmatite, prodominantly Nb-Ta
feldspar pegmatite
             IM13e                  Proterozoic Probably 1450–1400 Ma, 1100–1200 ? Ma
                       feldspar pegmatite        pegmatite, prodominantly feldspar
mica pegmatite
             IM13f                  Proterozoic Probably 1450–1400 Ma, 1100–1200 ? Ma
                       mica pegmatite            pegmatite, prodominantly mica
quartz pegmatite
             IM13g                  Proterozoic Probably 1450–1400 Ma, 1100–1200 ? Ma
                       quartz pegmatite          pegmatite, prodominantly quartz
             15a
tungsten veins                      tungsten veins associated with granitic/rhyolitic rocks
                       tungsten veins            mid-Tertiary
tin veins 15b                                    mid-Tertiary
                       tin veins tin veins associated with granitic/rhyolitic rocks
tin greisen 15c                                  mid-Tertiary
                       tin greisen tin greisen associated with granitic/rhyolitic rocks
porphyry copper
             17        porphyry copper           75–50 Ma
                                    chalcopyrite-quartz stockwork veins in or near porphyrtic intrusion
porphyry copper, skarnporphyry copper, skarn75–50 Ma
             18a        related                   related
                                    chalcopyrite-quartz stockwork veins in or near hydrothermally altered and mineralized porphy
copper-lead-zinc skarn copper skarn
             18b                                 Oligocene–Pliocene
                                    chalcopyrite in calc-silicate metasomtic rocks near contacts with intrusions
copper-lead-zinc skarn zinc-lead skarn
             18c                                 Oligocene–Pliocene
                                    sphalerite and galena in calc-silicate metasomtic rocks near contacts with intrusions
replacement iron
             18d                                 Cretaceous–Miocene
                       iron skarn iron in calc-silicate metasomtic rocks near contacts with intrusions
             18f
gold-bearing skarn                  gold in
                       gold-bearing skarncalc-silicate metasomtic rocks near contacts with intrusions
wollastonite18g
              skarn    wollastonitewollastoniteOligocene–Pliocene
                                      skarn       in calc-silicate metasomtic rocks near contacts with intrusions
              replacement
polymetallic19a                       replacement
                       polymetallicpolymetallic replacement in carbonate rokcs, without calc-silicate minerals
                       polymetallicmanganese75–25
carbonate-hosted silver-manganese (Pb) replacmentMa replacement in carbonate rocks, without calc-silicate minerals
             19a                      replacement and silver
porphyry tin20a                                  mid-Tertiary
                       porphyry tindisseminated tin deposits in porphyritic rocks
             20b                    tin veins mid-Tertiary
tin-polymetallic veins tin-polymetallicpolymetallic veins
                                    stockwork 75–50 of
porphyry copper-gold porphyry copper-gold veinletsMaquartz, chalcopyrite, bornite, and magnetite in or near a porphyritic intru
             20c
             25g                    epithermal Miocene–Pliocene
epithermal manganeseepithermal manganesemanganese associated with volcanic epithermal systems
             21a                                 75–50
                       porphyhy stockwork veinletsMa
porphyhy copper-molybdenum copper-molybdenum of quartz, chalcopyrite, and molybdenite in or near a porphyritic intrusion.
                       porphyry molybdenum, Probably quartz and
porphyry molybdenum (tungsten) stockwork veinlets of35–25 Ma molybdenite in or near a porphyritic intrusion, with low fluori
             21b                                 low fluorine
Great Plains margin gold-silver-telluride veins
             22b                                 47–25 Ma
                                    veins associated with Tertiary alkaline intrusions
Laramide vein22c       polymetallicpolymetallic75–40 Ma
                                      veins       skarns associated with Laramide (Late Cretaceous-mid-Tertiary) intrusions
volcanic-epithermal
             25e                                 35–16
                       epithermal quartz-alunite gold Ma or younger
                                    gold and pyrite in veins and breccias in highly acid-sulfate altered rocks
volcanic-epithermal
             36a                    gold-quartz veins Ma or younger
                       low sulfide gold-quartz 35–16in shear zones in metamorphic rocks
                                                 veins
             24a       Cyprus massive sulfide1650–1600 Ma
volcanic massive sulfide            stratabound lenses of massive pyrite, chalcopyrite, and sphalerite in pillow basalts of ophiolit
volcanic-epithermal
             25b       Creede epithermal vein35–16 Ma or youngerin felsic- to intermediate-volcanic rocks
                                    gold-silver quartz-adularia veins
volcanic-epithermal
             25c       Comstock epithermal vein  35–16 Ma or younger
                                    gold-silver quartz-adularia veins in felsic- to intermediate-volcanic rocks
volcanic-epithermal
             25d                    gold-silver 35–16 Ma or younger
                       Sado epithermal vein quartz-adularia veins in felsic- to intermediate-volcanic rocks
volcanogenic uranium volcanogenic uranium 35–16 Ma or younger volcanic rocks
             25f                                                                      fluorite veins, sandstone
                                    disseminated and vein uranium deposits associated with volcanic rocksuranium
rhyolite-hosted tin
             25h       rhyolite-hosteddeposits Oligocene–Pliocene rhyolite
                                    tin tin      in rhyolites                         other tin deposits
perlite      IM25ka    perlite                   Oligocene–Pliocene
                                    perlite deposits associted with felsic volcanic centers
pumice       IM25kb    pumice scoria-volcanicOligocene–Pliocene felsic volcanic centers
                                                 cinders
                                    pumice deposits associted with
scoria       IM25kc    scoria-volcanic cinders Oligocene–Pliocene mafic volcainic centers
                                    scoria deposits associated with
hydrothermal bentonitehydrothermal bentoniteOligocene–Pliocene
             IM25la                 bentonite deposits associated with hydrothermal systems
hydrothermal kaolin hydrothermal kaolin Oligocene–Pliocene hydrothermal systems
             IM25lb                 kaolin deposits associated with
fumarolic sulfur
             25m                    sulfur       Oligocene–Pliocene
                       fumarolic sulfur in geothermal systems
             25oa                   open hydrologic system
sedimentary zeolites sedimentary zeolites, in tuffs
             25ob                   alkaline-lake deposits
sedimentary zeolites sedimentary zeolites, in tuffs of saline, alkaline
carbonate-hosted gold-silver
             26a                                 Oligocene–Pliocene
                                    fine-grained gold,
                       carbonate-hosted gold-silver pyrite, and arsenic-antimony sulfides disseminated in calcareous and silice
fluorite veins
             IM26b     fluorite veins            Oligocene–Pliocene
                                    fluorite veins in various rock types
barite-fluorite veins
             IM26c                  barite and Oligocene–Pliocene
                       barite-fluorite veins fluorite veins in various rock types


                                                       Page 1
                                                      deposits


barite-fluorite veins
             27e        vein barite barite veinsOligocene–Pliocene
                                                   in various rock types
             IM28e                   sedimentary
sedimentary bentonite sedimentary bentonite bentonite
             30c
sandstone uranium       sandstone uranium                                             Cretaceous, Eocene, Miocene
                                                  Penn–Permian, Triassic, Jurassic, sedimentary-coppermargin
                                                               oxidation sandstone, shale, other sedimentary rocks
                                     stratabound, sediment-hosted uranium deposits              passive
sandstone-hosted lead-zinc
             30a        sandstone-hosted lead-zincOligocene–Pliocene
                                     stratabound, disseminated galena and sphalerite in sedimentary beds, typically arenaceous
             30b                     stratabound, Penn–Permian, Triassic
                                                               bleaching sulfides in sedimentarypassive margin of red-bed sequenc
                                                                                     sandstone uranium
                                                                                                 beds, typically
sedimentary-copper sediment-hosted copper disseminated copper sedimentary rocks, predominantly sandstone
             IM30d      dimension stone sandstonedimension stone
dimension stone sandstone            sandstone as a
silica       IM30e                   greater
                        silica sandstone than 80% quartz sandstone
             IM31k
sedimentary kaolin                   sedimentary kaolin
                        sedimentary kaolin
             32e                     solution collapse breccia pipe
                                                  Jurassic, possibly
collapse breccia pipe solution collapse breccia pipe uranium Triassic
potash       35ab                    bedded potash deposits
                                                   salt
                        potash bearing-beddedPermian
salt         35ac                    bedded evaporite Recent
                                                  Permian,
                        bedded salt, marinemarine salt deposits
gypsum       35ae       bedded gypsumsedimentary bedded gypsum deposits
travertine IM35d                                  Recent
                        travertine spring and low temperature vein-filling travertine deposits
fire clay    IM38i      fire clay    residual fire clay deposits
placer gold 39a                                   Pliocene–Recent
                        placer gold stream, alluvial, and residual placer gold deposits
placer tin 39e                       stream       Pliocene–Recent
                        stream placer tin placer tin deposits
Rio GrandeIM26b
              rift                                12–8 Ma, maybe as young as little or
                        fluorite veins ow temperature, open-space fillings with 700,000no replacement and are not obviously asso
                                     L
Rio GrandeIM26c
              rift                                12–8 Ma, maybe as young as little or
                                     Low temperature, open-space fillings with 700,000no replacement and are not obviously asso
                        barite-fluorite veins
Rio Grande27e rift                                12–8 Ma, maybe as young as little or
                        vein barite Low temperature, open-space fillings with 700,000no replacement and are not obviously asso
             22c        polymetallicvein
                                      veins       Proterozoic to Tertiary
Precambrian vein and replacements and replacement deposits are found along faults, fractures, shear zones, and contact zo
             10b                                  47–25 veins
                                     thorium-rare-earth Ma associated with Tertiary alkaline intrusion
Great Plains margin thorium-rare-earth veins
Rio Grande19a rift                                12–8 Ma, maybe as young as little or
                        polymetallicLow temperature, open-space fillings with 700,000no replacement and are not obviously asso
                                      replacement
             none
limestone uranium       none                      Jurassic
                                     stratabound, uranoium deposit in limestone
             39c
beach-placer sandstone               disseminated heavy mineral beach placer sandstone deposits
                        shoreline titanium        Cretaceous
mill         none       none         mill or other processing facility
coal         none       none                      Cretaceous
                                     sedimentary coal deposits
sedimentary  none       none         deposit in sedimentary rocks, including crushed stone, aggregates, sand and gravel, clay
geothermalnone          none         geothermal Oligocene–Pliocene
                                                  well
smelter      none       none         smelter facility
igneous      none       none                      Oligocene–Pliocene
                                     deposits in igneous rocks, including crushed and dimension stone,
sedimentary iron
             34f                                  Cambrian–Ordovocian
                        oolitic iron disseminated aand replacement iron deposits in sedimentary rocks
             32a                                  Oligocene–Pliocene
                                     stratabound carbonate-hosted deposits of sphalerite, galena, and chalcopyrite in sedimentar
Mississippi-valley type Southeast Missouri lead-zinc
carbonate-hosted Pb-Zn (Cu, Ag) replacment 75–25 Ma
             19a                      replacement
                        polymetalliclead and zinc replacement in carbonate rocks, without calc-silicate minerals
polymetallic22c
              vein                                 veins Ma
                        polymetallicpolymetallic75–40 in various rocks
                                      veins
             22c          vein        veins       Miocene–Pliocene
copper-silver (uranium)polymetallicVeins formed at low temperatures, near the surface, and along Tertiary faults, possibly as a
carbonate-hosted manganese replacement Oligocene–Pliocene
             19b                     manganese replacement in carbonate rocks, without calc-silicate minerals
                        replacement manganese
             none       none                      1450–1400 Ma
syenite/gabbro-hosted Cu-Ag-PGECu-Ag-PGE hosted by syenite and gabbro
disseminated Y-Zr deposits in alkaline rocks 1100–1200 Ma in alkaline complexes
             11c                     disseminated Y-Zr deposits
                        Alkaline complex associated zircon
placer tungsten
             none       none                      Pliocene–Recent
                                     stream placer tungsten deposits
volcanic massive sulfide
             24b                                  1650–1600 Ma
                                     stratabound lenses of massive pyrite, chalcopyrite, and sphalerite in pillow basalts of ophiolit
volcanic massive sulfide
             28a                                  1650–1600 Ma
                                     stratabound lenses of massive pyrite, chalcopyrite, and sphalerite in pillow basalts of ophiolit
             26b        fluorite veinsein
                                     v            Proterozoic to Tertiary
Precambrian vein and replacements and replacement deposits are found along faults, fractures, shear zones, and contact zo
REE-Th-U veins
             11d                                  400–600 Ma, 47–25 Ma
                                     thorium-rare-earth veins associated with alkaline intrusion
             18a
Laramide skarn                                     skarns associated with Laramide (Late Cretaceous-mid-Tertiary) intrusions
                                     polymetallic75-40 Ma
             18c
Laramide skarn                       polymetallic75-40 Ma
                        zinc-lead skarn            skarns associated with Laramide (Late Cretaceous-mid-Tertiary) intrusions
             19a
Laramide skarn                        replacement  skarns associated with Laramide (Late Cretaceous-mid-Tertiary) intrusions
                        polymetallicpolymetallic75-40 Ma
Great Plains margin porphyry copper
             17                                   47–25 Ma
                                     chalcopyrite-quartz stockwork veins in or near alkaline porphyrtic intrusion
             22c                      veins       47–25 Ma
Great Plains margin polymetallicpolymetallic, epithermal to mesothermal veins
Great Plains margin
             18a                                  47–25 Au
                                     Cu, Pb/Zn, and/or Ma skarns or carbonate-hosted replacement deposits
                                                  47–25 Au
Great Plains margin copper skarn Pb/Zn, and/or Ma skarns or carbonate-hosted replacement deposits
             18b                     Cu,
             18d                                  47–25 Ma
Great Plains margin iron skarn Fe skarns and replacement bodies
Great Plains margin
             39a                                  47–25 Au
                                     Cu, Pb/Zn, and/or Ma skarns or carbonate-hosted replacement deposits


                                                       Page 2
                                                       deposits


volcanic-epithermal
            25g                        epithermal 35–16 Ma or younger
                          epithermal manganesemanganese associated with volcanic epithermal systems
volcanic-epithermal
            26b                                     35–16 Ma to younger
                                       fluorite veins in felsic- or intermediate-volcanic rocks
                          fluorite veins
Mississippi-valley type
            32b                                     Oligocene–Pliocene
                                       stratabound carbonate-hosted deposits of sphalerite, galena, and chalcopyrite in sedimentar
Mississippi-valley type
            32c                                     Oligocene–Pliocene
                                       stratabound carbonate-hosted deposits of sphalerite, galena, and chalcopyrite in sedimentar
Mississippi-valley type
            32d                                     Oligocene–Pliocene
                                       stratabound carbonate-hosted deposits of sphalerite, galena, and chalcopyrite in sedimentar
talc        none          none                      Proterozoic
                                       Lenticular masses of talc and talc-quartz-phyllite hosted by metamorphic rocks.
alunite     none          none                      Oligocene–Pliocene
clay        none          none         sedimentary and volcanic clay deposits
            none
crushed stone             none         crushed stone
            none
dimension stone           none         dimension stone
garnet      none          none         garrnet deposits
gems        none          none         gems, semi-precious stones, and mineral collecting
            none
limestone/dolostone       none         limestone, dolostone, travertine, marble for cement and lime
zeolites    none          none         sedimentary and volcanic zeolite deposits
mica        none          none                      Proterozoic
                                       Precambrian mica schist               schist




                                                        Page 3
                         deposits


 Tectonic_setting




c-silicate minerals




ins, sandstone uranium




                         Page 4
                                    deposits




  passive margin

  passive margin




aggregates, sand and gravel, clay




                                    Page 5

								
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