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Home > Museums and Research Centers > Karst and Cave Studies > FMD

Ferromanganese Deposits

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  • Aggregate of iron oxide baskets and dimpled disks by A. Dichosa

    Aggregate of iron oxide baskets and dimpled disks

  • Al-oxyhydroxide crystal by M. Spilde and D. Northup

    Al-oxyhydroxide crystal

  • Aluminum rich crystals in clay particles by M. Spilde and D. Northup

    Aluminum rich crystals in clay particles

  • Alunite crystal with segmented hairy filament and star shapes by M. Spilde and P. Boston

    Alunite crystal with segmented hairy filament and star shapes

  • Alunite cuboid cyrstals by M. Spilde and D. Northup

    Alunite cuboid cyrstals

  • Area of crystals and debris by A. Dichosa

    Area of crystals and debris

  • Area of dimpled disks and baskets by A. Dichosa

    Area of dimpled disks and baskets

  • Area of large and small spheroids and filaments by M. Spilde and A. Dichosa

    Area of large and small spheroids and filaments

  • Arm of dimple disk aggregate by A. Dichosa

    Arm of dimple disk aggregate

  • Artificial substrate with mineral coating by M. Spilde

    Artificial substrate with mineral coating

  • Artificial substrate with platy mineral coating by M. Spilde

    Artificial substrate with platy mineral coating

  • Attachment of filament to crystal by M. Spilde and D. Northup

    Attachment of filament to crystal

  • Basket feature and disks by A. Dichosa

    Basket feature and disks

  • Beads on a string attached to corroded calcite crystal by M. Spilde, D. Northup, P. Boston, and L. Mallory

    Beads on a string attached to corroded calcite crystal

  • Beads on a string crossing hairy segmented filament by M. Spilde, D. Northup, P. Boston, and L. Mallory

    Beads on a string crossing hairy segmented filament

  • Beads on a string in incomplete bridge of tissue-paper mineral by D. Northup and M. Spilde

    Beads on a string in incomplete bridge of tissue-paper mineral

  • Beads on a string in tissue-paper mineral by M. Spilde and D. Northup

    Beads on a string in tissue-paper mineral

  • Beads on a string on a corroded calcite crystal by M. Spilde and D. Northup

    Beads on a string on a corroded calcite crystal

  • Beads on a string with segmented hairy filament by M. Spilde and D. Northup

    Beads on a string with segmented hairy filament

  • Bridge of felted filaments by UNM Microbe/SEM Facility

    Bridge of felted filaments

  • Bridging filament across tissue-paper by A. Dichosa

    Bridging filament across tissue-paper

  • Bridging filaments across tissue-paper by A. Dichosa

    Bridging filaments across tissue-paper

  • Bridging filaments on tissue-paper by A. Dichosa

    Bridging filaments on tissue-paper

  • Bridging threads on calcite by M. Spilde and D. Northup

    Bridging threads on calcite

  • BSE image of manganese oxide crystals on calcite by M. Spilde and D. Northup

    BSE image of manganese oxide crystals on calcite

  • BSE of corroded crystals by UNM Microbe/SEM Facility

    BSE of corroded crystals

  • BSE of corroded dolomite crystals by M. Spilde and D. Northup

    BSE of corroded dolomite crystals

  • BSE of field of star shapes on platy crystal by M. Spilde and P. Boston

    BSE of field of star shapes on platy crystal

  • BSE overview of corroded and pitted crystals by UNM Microbe/SEM Facility

    BSE overview of corroded and pitted crystals

  • BSE overview of corroded crystals by M. Spilde and P. Boston

    BSE overview of corroded crystals

  • Clay-like manganese oxides with corroded calcite crystal by UNM Microbe/SEM Facility

    Clay-like manganese oxides with corroded calcite crystal

  • Closer view of star shapes on quartz crystal by M. Spilde and D. Northup

    Closer view of star shapes on quartz crystal

  • Close up of beads on a string bridging tissue-paper mineral by D. Northup and M. Spilde

    Close up of beads on a string bridging tissue-paper mineral

  • Close up of bridging threads on calcite by M. Spilde and D. Northup

    Close up of bridging threads on calcite

  • Close up of BSE of corroded crystals by UNM Microbe/SEM Facility

    Close up of BSE of corroded crystals

  • Close up of bumpy FMD with rod by M. Spilde

    Close up of bumpy FMD with rod

  • Close up of corroded cuboidal carbonate crystals by M. Spilde and D. Northup

    Close up of corroded cuboidal carbonate crystals

  • Close up of different sized beads on a string by D. Northup and M. Spilde

    Close up of different sized beads on a string

  • Close up of ferro-manganese deposit, with cuboid and spheroid shapes by M. Spilde and D. Northup

    Close up of ferro-manganese deposit, with cuboid and spheroid shapes

  • Close up of filament bundle by M. Spilde and D. Northup

    Close up of filament bundle

  • Close up of filaments and threads bridging manganese oxide mineral by D. Northup and M. Spilde

    Close up of filaments and threads bridging manganese oxide mineral

  • Close up of filaments and threads off manganese oxide by D. Northup and M. Spilde

    Close up of filaments and threads off manganese oxide

  • Close up of filaments bridging manganese oxide minerals by D. Northup and M. Spilde

    Close up of filaments bridging manganese oxide minerals

  • Close up of FMD rosette, with star shaped minerals around by D. Northup and M. Spilde

    Close up of FMD rosette, with star shaped minerals around

  • Close up of iron stars making up lace by M. Spilde

    Close up of iron stars making up lace

  • Close up of limestone grains by M. Spilde

    Close up of limestone grains

  • Close up of manganese oxide crystals by M. Spilde and D. Northup

    Close up of manganese oxide crystals

  • Close up of manganese oxide tissue-paper by M. Spilde and D. Northup

    Close up of manganese oxide tissue-paper

  • Close up of quartz crystal with star shapes around by M. Spilde and D. Northup

    Close up of quartz crystal with star shapes around

  • Close up of ring on calcite by M. Spilde, D. Northup, P. Boston, and L. Mallory

    Close up of ring on calcite

  • Close up of spheroids and filaments on tissue-paper by A. Dichosa

    Close up of spheroids and filaments on tissue-paper

  • Close up of spheroids and platy minerals on artificial substrate by M. Spilde

    Close up of spheroids and platy minerals on artificial substrate

  • Close up of spheroids and segmented hairy filaments by A. Dichosa

    Close up of spheroids and segmented hairy filaments

  • Close up of stacked star shaped manganese oxide by M. Spilde and P. Boston

    Close up of stacked star shaped manganese oxide

  • Close up of star shaped iron oxide on calcite by M. Spilde and D. Northup

    Close up of star shaped iron oxide on calcite

  • Close up of star shaped minerals on dolomite by M. Spilde and D. Northup

    Close up of star shaped minerals on dolomite

  • Close view of basket feature by A. Dichosa

    Close view of basket feature

  • Close view of filament attachment by M. Spilde and D. Northup

    Close view of filament attachment

  • Close view of filaments on dolomite by M. Spilde and D. Northup

    Close view of filaments on dolomite

  • Close view of tabular crystals by A. Dichosa

    Close view of tabular crystals

  • Cluster of beads on a string, close up by M. Spilde, D. Northup, P. Boston, and L. Mallory

    Cluster of beads on a string, close up

  • Cluster of star shapes, spheroids, and tablets on calcite by M. Spilde and D. Northup

    Cluster of star shapes, spheroids, and tablets on calcite

  • Coarse filaments containing abundant svanbergite cubes and FMD by M. Spilde

    Coarse filaments containing abundant svanbergite cubes and FMD

  • Coarsely crystalline manganese oxide by D. Northup and M. Spilde

    Coarsely crystalline manganese oxide

  • Corroded and pitted cuboidal carbonate crystals by M. Spilde and D. Northup

    Corroded and pitted cuboidal carbonate crystals

  • Corroded calcite crystals by M. Spilde and D. Northup

    Corroded calcite crystals

  • Corroded calcite crystals by M. Spilde and D. Northup

    Corroded calcite crystals

  • Corroded calcite crystals in clay-like manganese oxide by UNM Microbe/SEM Facility

    Corroded calcite crystals in clay-like manganese oxide

  • Corroded calcite subhedral crystal by M. Spilde and D. Northup

    Corroded calcite subhedral crystal

  • Corroded crystals with svanbergite cuboidal crystals by M. Spilde and D. Northup

    Corroded crystals with svanbergite cuboidal crystals

  • Corroded cuboid crystals by A. Dichosa

    Corroded cuboid crystals

  • Corroded dolomite with euhedral crystals by M. Spilde and D. Northup

    Corroded dolomite with euhedral crystals

  • Corrosion of artificial substrate by M. Spilde

    Corrosion of artificial substrate

  • Corrosion residue on top of dolomite by M. Spilde and D. Northup

    Corrosion residue on top of dolomite

  • Crystals and debris on artificial substrate by M. Spilde

    Crystals and debris on artificial substrate

  • Crystals with plate like structures by A. Dichosa

    Crystals with plate like structures

  • Cuboid crystals in iron oxide debris by M. Spilde

    Cuboid crystals in iron oxide debris

  • Cuboids in endolite by M. Spilde and D. Northup

    Cuboids in endolite

  • Debris containing cuboids, spheroids, and needles by M. Spilde and D. Northup

    Debris containing cuboids, spheroids, and needles

  • Debris on artificial substrate by M. Spilde

    Debris on artificial substrate

  • Debris over dolomite by M. Spilde and D. Northup

    Debris over dolomite

  • Different sized beads on a string bridging rocks by D. Northup and M. Spilde

    Different sized beads on a string bridging rocks

  • Different sized spheroids and filaments by M. Spilde and A. Dichosa

    Different sized spheroids and filaments

  • Dimpled disks and baskets by A. Dichosa

    Dimpled disks and baskets

  • Dimpled spheroids and filaments on limestone on artificial substrate by M. Spilde

    Dimpled spheroids and filaments on limestone on artificial substrate

  • Dimpled spheroids on limestone by M. Spilde

    Dimpled spheroids on limestone

  • Disks and filaments by A. Dichosa

    Disks and filaments

  • Dissolution pits on calcite crystal by M. Spilde and D. Northup

    Dissolution pits on calcite crystal

  • Dolomite crystal covered with star shaped minerals by M. Spilde and D. Northup

    Dolomite crystal covered with star shaped minerals

  • Dolomite with corrosion pits by M. Spilde and D. Northup

    Dolomite with corrosion pits

  • Dolomite with euhedral crystals and filaments by M. Spilde and D. Northup

    Dolomite with euhedral crystals and filaments

  • Edge of crystal with star shapes and hillocks by M. Spilde and D. Northup

    Edge of crystal with star shapes and hillocks

  • Edge of tissue-paper with filaments and spheroids by A. Dichosa

    Edge of tissue-paper with filaments and spheroids

  • EDS of platy mineral from 228_2_06.TIF by M. Spilde

    EDS of platy mineral from 228_2_06.TIF

  • EDX from EY56blk.tif by M. Spilde and D. Northup

    EDX from EY56blk.tif

  • EDX from EY56blk.tif showing manganese oxide, Cr, Cu, Ni, Zn by M. Spilde and D. Northup

    EDX from EY56blk.tif showing manganese oxide, Cr, Cu, Ni, Zn

  • EDX from EY56blk.tif showing manganese oxides by D. Northup and M. Spilde

    EDX from EY56blk.tif showing manganese oxides

  • EDX from EY56blk.tif showing REE by M. Spilde and D. Northup

    EDX from EY56blk.tif showing REE

  • EDX from EY56wall03.tif showing V by M. Spilde and D. Northup

    EDX from EY56wall03.tif showing V

  • EDX from l1141m.tif showing ferro-manganese oxides by D. Northup and M. Spilde

    EDX from l1141m.tif showing ferro-manganese oxides

 
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