CONTENTS

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Title Page

Preface, by Paul B. Barton III

Introduction, by Dennis P. Cox, Paul B. Barton, and Donald A. Singer

Deposit models

Deposits related to mafic and ultramafic intrusions in stable environments

1 Descriptive model of Stillwater Ni-Cu, by Norman J Page

2a Descriptive model of Bushveld Cr. by Norman J Page

2b Descriptive model of Merensky Reef PGE, by Norman J Page

3 Descriptive model of Bushveld Fe-Ti-V, by Norman J Page

Deposits related to mafic-ultramafic rocks in unstable areas

5a Descriptive model of Duluth Cu-Ni-PGE, by Norman J Page

5b Descriptive model of Noril'sk Cu-Ni-PGE, by Norman J Page

6a Descriptive model of komatiitic Ni-Cu, by Norman J Page

Grade and tonnage model of komatiitic Ni-Cu, by Donald A. Singer, Norman J Page, and W. David Menzie

6b Descriptive model of dunitic Ni-Cu, by Norman J Page

Grade and tonnage model of dunitic Ni-Cu, by Donald A. Singer and Norman J Page

7a Descriptive model of synorogenic-synvolcanic Ni-Cu, by Norman J Page

Grade and tonnage model of synorogenic-synvolcanic Ni-Cu, by Donald A. Singer, Norman J Page, and W. David Menzie

7b Descriptive model of anorthosite Ti, by Eric R. Force

8a Descriptive model of podiform chromite, by John P. Albers

Grade and tonnage model of minor podiform chromite, by Donald A. Singer and Norman J Page

1. Grade and tonnage model of major podiform chromite, by Donald A. Singer, Norman J Page, and Bruce R. Lipin

8c Descriptive model of Limassol Forest Co-Ni, by Norman J Page

8d Descriptive model of serpentine-hosted asbestos, by Norman J Page

Grade and tonnage model of serpentine-hosted asbestos, by Greta J. Orris

9 Descriptive model of Alaskan PGE, by Norman J Page and Floyd Gray

Deposits related to alkaline intrusions

1. Descriptive model of carbonatite deposits, by Donald A. Singer

   Grade and tonnage model of carbonatite deposits, by Donald A. Singer

2. Descriptive model of diamond pipes, by Dennis P. Cox

Deposits related to felsic phanerocrystalline intrusive rocks

1. Descriptive model of W skarn deposits, by Dennis P. Cox

   Grade and tonnage model of W skarn deposits, by W. David Menzie and Gail M. Jones

2. Descriptive model of Sn skarn deposits, by Bruce L. Reed and Dennis P. Cox

   Grade and tonnage model of Sn skarn deposits, by W. David Menzie and Bruce L. Reed

3. Descriptive model of replacement Sn, by Bruce L. Reed

   Grade and tonnage model of replacement Sn, by W. David Menzie and Bruce L. Reed

15a Descriptive Model of W Veins by Dennis P. Cox and William C. Bagby

Grade and Tonnage Model of W Veins by Gail M. Jones and W. David Menzie

1. Descriptive model of Sn veins, by Bruce L. Reed

   Grade and tonnage model of Sn veins, by W. David Menzie and Bruce L. Reed

2. Descriptive model of Sn greisen deposits, by Bruce L. Reed

   Grade and tonnage model of Sn greisen deposits, by W. David Menzie and Bruce L. Reed

Deposits related to felsic porphyroaphanitic intrusions

1. Descriptive model of Climax Mo deposits, by Stephen D. Ludington

   Grade and tonnage model of Climax Mo deposits, by Donald A. Singer, Ted G. Theodore, and Dan L. Mosier

2. Descriptive model of porphyry Cu. by Dennis P. Cox

   Grade and tonnage model of porphyry Cu. by Donald A. Singer, Dan L. Mosier, and Dennis P. Cox

3. Descriptive model of porphyry Cu. skarn-related deposits, by Dennis P. Cox

   Grade and tonnage model of porphyry Cu. skarn-related deposits, by Donald A. Singer

4. Descriptive model of Cu skarn deposits, by Dennis P. Cox and Ted G. Theodore

   Grade and tonnage model of Cu skarn deposits, by Gail M. Jones and W. David Menzie

5. Descriptive model of Zn-Pb skarn deposits, by Dennis P. Cox

   Grade and tonnage model of Zn-Pb skarn deposits, by Dan L. Mosier

6. Descriptive model of Fe skarn deposits, by Dennis P. Cox

   Grade and tonnage model of Fe skarn deposits, by Dan L. Mosier and W. David Menzie

7. Descriptive model of carbonate-hosted asbestos, by Chester T. Wrucke Jr. and Andrew F. Shride
   
   
8. Descriptive model of polymetallic replacement deposits, by Hal T. Morris

   Grade and tonnage model polymetallic replacement deposits, by Dan L. Mosier, Hal T. Morris, and Donald A. Singer

9. Descriptive model of replacement Mn, by Dan L. Mosler

   Grade and tonnage model of replacement Mn, by Dan L. Mosier

10. Descriptive model of porphyry Sn, by Bruce L. Reed
    
    
11. Descriptive model of Sn-polymetallic veins, by Yukio Togashi
    
    
12. Descriptive model of porphyry Cu-Au, by Dennis P. Cox

    Grade and tonnage model of porphyry Cu-Au, by Donald A. Singer and Dennis P. Cox

13. Descriptive model of porphyry Cu-Mo, by Dennis P. Cox

    Grade and tonnage model of porphyry Cu-Mo, by Donald A. Singer, Dennis P. Cox, and Dan L. Mosier

14. Descriptive model of porphyry Mo, low-F, by Ted G. Theodore

    Grade and tonnage model porphyry Mo, low-F, by W. David Menzie and Ted G. Theodore

15. Descriptive model of volcanic-hosted Cu-As-Sb, by Dennis P. Cox
    
    
16. Descriptive model of Au-Ag-Te veins, by Dennis P. Cox and William C. Bagby
    
    
17. Descriptive model of polymetallic veins, by Dennis P. Cox

    Grade and tonnage model polymetallic veins, by James D. Bliss and Dennis P. Cox

    Deposits related to subaerial mafic extrusive rocks

18. Descriptive model of basaltic Cu. by Dennis P. Cox

Deposits related to marine mafic extrusive rocks

1. Descriptive model of Cyprus massive sulfide, by Donald A. Singer

   Grade and tonnage model of Cyprus massive sulfide, by Donald A. Singer and Dan L. Mosier

2. Descriptive model of Besshi massive sulfide, by Dennis P. Cox

   Grade and tonnage model of Besshi massive sulfide, by Donald A. Singer

3. Descriptive model of Franciscan-type volcanogenic Mn, by Dan L. Mosier and Norman J Page

   Grade and tonnage model of volcanogenic Mn, by Dan L. Mosier

4. Descriptive model of Blackbird Co-Cu, by Robert L. Earhart

Deposits related to subaerial felsic to mafic extrusive rocks

1. Descriptive model of hot-spring Au-Ag, by Byron R Berger

   Grade and tonnage model of hot-spring Au-Ag, by Byron R Berger and Donald A. Singer

2. Descriptive model of Creede epithermal veins, by Dan L. Mosier, Takeo Sato. Norman J Page, Donald A. Singer, and Byron R. Berger

   Grade and tonnage model of Creede epithermal veins, by Dan L. Mosier, Takeo Sato, and Donald A. Singer

3. Descriptive model of Comstock epithermal veins, by Dan L. Mosier, Donald A. Singer, and Byron R. Berger

   Grade and tonnage model of Comstock epithermal veins. by Dan L. Mosier. Takeo Sato and Donald A. Singer

4. Descriptive model of Sado epithermal veins, by Dan L. Mosier, Byron R. Berger and Donald A. Singer

   Grade and tonnage model of Sado epithermal veins. by Dan L. Mosier and Takeo Sato

5. Descriptive model of epithermal quartz-alunite Au, by Byron R. Berger

   Grade and tonnage model of epithermal quartz-alunite Au. by Dan L. Mosier and W. David Menzie

6. Descriptive model of volcanogenic U. by William C. Bagby

   Grade and tonnage model of volcanogenic U. by Dan L. Mosier

7. Descriptive model of epithermal Mn, by Dan L. Mosier

   Grade and tonnage model of epithermal Mn, by Dan L. Mosier

8. Descriptive model of rhyolite-hosted Sn, by Bruce L. Reed, Wendell Duffield, Stephen D. Ludington, Charles H. Maxwell, and Donald H. Richter

   Grade and tonnage model rhyolite-hosted Sn, by Donald A. Singer and Dan L. Mosier

9. Descriptive model of volcanic-hosted magnetite, by Dennis P. Cox

   Grade and tonnage model volcanic-hosted magnetite, by Dan L. Mosier

10. Descriptive model of carbonate-hosted Au-Ag, by Byron R. Berger

    Grade and tonnage model carbonate-hosted Au-Ag, by William C. Bagby, W. David Menzie, Dan L. Mosier, and Donald A. Singer

11. Descriptive model of hot-spring Hg, by James J. Rytuba

    Grade and tonnage model of hot-spring Hg by James J. Rytuba

12. Descriptive model of Almaden Hg, by James J. Rytuba
    
    
13. Descriptive model of silica-carbonate Hg, by James J. Rytuba

    Grade and tonnage model of silica-carbonate Hg, by James J. Rytuba and Simon M. Cargill

14. Descriptive model of simple Sb deposits, by James D. Bliss and Greta J. Orris

    Grade and tonnage model of simple Sb deposits, by James D. Bliss and Greta J. Orris

15. Grade and tonnage model of disseminated Sb deposits by James D. Bliss and Greta J. Orris

Deposits related to marine felsic to mafic extrusive rocks

1. Descriptive model of kuroko massive sulfide, by Donald A. Singer

   Grade and tonnage model kuroko massive sulfide, by Donald A. Singer and Dan L. Mosier

2. Descriptive model of Algoma Fe, by William F. Cannon

Deposits in clastic sedimentary rocks

1. Descriptive model of quartz pebble conglomerate Au-U, by Dennis P. Cox
   
   
2. Descriptive model of Olympic Dam Cu-U-Au, by Dennis P. Cox
   
   
3. Descriptive model of sandstone-hosted Pb-Zn, by Joseph A. Briskey

   Grade and tonnage model of sandstone-hosted Pb-Zn, by Dan L. Mosier

4. Descriptive model of sediment-hosted Cu. by Dennis P. Cox

   Grade and tonnage model of sediment-hosted Cu. by Dan L. Mosier, Donald A. Singer, and Dennis P. Cox

5. Descriptive model of sandstone U. by Christine E. Turner-Peterson and Carroll A. Hodges
   
   
6. Descriptive model of sedimentary exhalative Zn-Pb, by Joseph A. Briskey

   Grade and tonnage model of sedimentary exhalative Zn-Pb, by W. David Menzie and Dan L. Mosier

7. Descriptive model of bedded barite, by Greta J. Orris

   Grade and tonnage model of bedded barite, by Greta J. Orris

8. Descriptive model of emerald veins, by Dennis P. Cox

Deposits in carbonate rocks

1. Descriptive model of southeast Missouri Pb-Zn, by Joseph A. Briskey
   
   
2. Descriptive model of Appalachian Zn, by Joseph A. Briskey

   Grade and tonnage model of southeast Missouri Pb-Zn and Appalachian Zn deposits, by Dan L. Mosier and Joseph A. Briskey

3. Descriptive model of Kipushi Cu-Pb-Zn, by Dennis P. Cox and Lawrence R. Bernstein

   Chemical-sedimentary deposits

4. Descriptive model of Superior Fe, by William F. Cannon

   Grade and tonnage model of Superior Fe and Algoma Fe deposits, by Dan L. Mosier and Donald A. Singer

5. Descriptive model of sedimentary Mn, by William F. Cannon and Eric R. Force

   Grade and tonnage model of sedimentary Mn, by Dan L. Mosier

6. Descriptive model of upwelling type phosphate deposits. by Dan L. Mosier

   Grade and tonnage model of upwelling type phosphate deposits, by Dan L. Mosier

7. Descriptive model of warm-current type phosphate deposits, by Dan L. Mosier

   Grade and tonnage model warm-current type phosphate deposits, by Dan L. Mosier

   Deposits related to regionally metamorphosed rocks

8. Descriptive model of low-sulfide Au-quartz veins, by Byron R. Berger

   Grade and tonnage model low-sulfide Au-quartz veins, by James D. Bliss

9. Descriptive model of Homestake Au, by Byron R. Berger

   Grade and tonnage model of Homestake Au, by Dan L. Mosier

10. Descriptive model of unconformity U-Au, by Richard I. Grauch and Dan. L. Mosier

    Grade and tonnage model of unconformity U-Au, by Dan L. Mosier

11. Descriptive model of gold on flat faults, by Bruce A. Bouley

Deposits related to surficial processes and unconformities

1. Descriptive model of lateritic Ni, by Donald A. Singer

   Grade and tonnage model lateritic Ni, by Donald A. Singer

2. Descriptive model of laterite type bauxite deposits, by Sam H. Patterson

   Grade and tonnage model laterite type bauxite deposits, by Dan L. Mosier

3. Descriptive model of karst type bauxite deposits, by Sam H. Patterson

   Grade and tonnage model karst type bauxite deposits, by Dan L. Mosier

4. Descriptive model of placer Au-PGE, by Warren E. Yeend

   Grade and tonnage model of placer Au-PGE, by Greta J. Orris and James D. Bliss

5. Descriptive model of placer PGE-Au, by Warren E. Yeend and Norman J Page

   Grade and tonnage model of placer PGE-Au, by Donald A. Singer and Norman J Page

6. Descriptive model of shoreline placer Ti, by Eric R. Force

   Grade and tonnage model of shoreline placer Ti, by Emil D. Attanasi and John H. DeYoung, Jr.

7. Descriptive model of diamond placers, by Dennis P. Cox
   
   
8. Descriptive model of alluvial placer Sn, by Bruce L. Reed

References

Appendixes

A. Locality abbreviations

B. Summary statistics of grade-tonnage models, by Donald A. Singer

C. Commodity geochemical index, by Paul B. Barton

D. Mineralogical index, by Paul B. Barton

E. Index of deposits