Cu, Zn, Pb, and Ag Deposits - 1st Edition - ISBN: 9780444414069, 9780444599001

Cu, Zn, Pb, and Ag Deposits, Volume 6

1st Edition

Authors: Author Unknown
eBook ISBN: 9780444599001
Imprint: Elsevier Science
Published Date: 1st January 1976
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Table of Contents


Chapter 1. Comparative Review of the Genesis of the Copper-Lead Sandstone-Type Deposits

Introduction

Description of the Pb-Zn Sandstone-Type Deposit of Largentière (France)

The Hercynian Basement

The Pediment Area and the Evaporitic Basin

Outline of the Genetic Model

Relations Between Largentière and Other Sandstone-Type Deposits

Other Trends of Genetic Models of Sandstone Types

Genetic Models and Epochs of Concentration

Genetic Models and the Origin of Metals

General Conlusions

References

Chapter 2. "Volcanic" Massive Sulphide Deposits and their Host Rocks - A Review and an Explanation

Introduction

Volcanic Host Rocks

Felsic vs. Mafic

Magma-Type and Ore Occurrence

Local Host-Rock-Ore Relationships

Related Plu Tonic Rocks

Tectonics

Interim Summary of Field and Laboratory Data

Problems of Genesis

The Geothermal Model

Conditions for Convection

Size of the Convection Cell

Life of the Convection Cell

Heat Supply

Metal and Sulphur Supply

Discussion

General

Sulphur and Lead Isotopes

Evolutionary Trends

Summary and Conclusions

Note Added in Proof

Acknowledgements

References

Chapter 3. Tectonic Setting of Some Strata-Bound Massive Sulphide Deposits in New South Wales, Australia

Introduction

Tectonic Setting of Cyprus-Type and Kuroko-Type Strata-Bound Massive Sulphide Deposits

Oceanic Metallogenic Unit

Volcanic-Rift Metallogenic Unit

Development of Some Tectonic Units in Which Strata-Bound Massive Sulphide Deposits Occur in the Palaeozoic Sequences of New South Wales

Kanmantoo Pre-Cratonic Metallogenic Province

Lachlan Pre-Cratonic Metallogenic Province

Description of Some Examples of Strata-Bound Sulphide Deposits in New South Wales

Cyprus-Type Deposits

Kuroko-Type Deposits

Conclusions

References

Chapter 4. Caledonian Massive Sulphide Deposits in Scandinavia: A Comparative Review

Introduction

Scandinavian "Volcanogenic" Deposits

Economic Importance

Mineralogy

Major Minerals

Minor Minerals

Size and Grade of Ore Bodies

Elemental Composition

Comparisons with Other Ores

Survey of History of Genetical Concepts

Metamorphism of the Ores

Lithostratigraphical Relations of the Ores

The Lower Palaeozoic Sequence

Nature of the Volcanic Activity

Relation to a Plate Tectonic Model

Acknowledgments

References

Chapter 5. Precambrian, Strata-Bound, Massive Cu-Zn-Pb Sulfide Ores of North America

Introduction

Definition of the Ore Type

Location of Deposits in North America

Geology of Representative Deposits

Ores in Predominantly Volcanic Rocks

Ores in Volcano-Sedimentary ("Mixed") Rocks

Ores in Predominantly Sedimentary Rocks

General Geological Features

Nature and Depositional Environment of Host Rocks

Sulfide Deposits

Metamorphic Effects

Effects on Host Rocks

Effect on Sulfide Deposits

Effects on the Footwall Alteration Zone

Genesis

Comparison with the Japanese Kuroko Deposits

Acknowledgements

References

Chapter 6. Geology of the Zambian Copperbelt

Introduction

Regional Setting

Sedimentary Basins

Basement Complex

Katanga Supergroup

Nomenclature

Acknowledgements

Structures of the Zambian Copperbelt

The Lufilian Arc

The Kafue Anticline

Early Recumbent Folds

En-Echelon Synclines

Cross-Folding

Domes

Dragfolds

Faults

Metamorphism

Basement Complex

Katanga System

Basic Intrusives

Metamorphic Veins

Types of Orebodies

Mineralization

Distribution of Ore

Orebody Descriptions

Konkola and Musoshi

Basement Complex

Katanga System or Supergroup

Basal Conglomerate

Footwall Quartzite Formation

Porous Conglomerate-Sandstone Formation

Footwall Conglomerate

Banded Shale and Sandstone Formation

Barren "Gap"

Eastern Margin

Konkola Orebody

Mineral Zoning

Footwall Mineralization

Hanging-Wall Formations

Upper Roan

Mwashia

Lower Kundelungu

Folding, Faulting, and Metamorphism

Chambishi

Basement Complex

Katanga System or Supergroup

Folding and Metamorphism

Nchanga

Luano Deposit

Basement Complex

Katanga System or Supergroup

Post-Katanga Intrusives

Structures

Metamorphism

Supergene Processes

Paleotopography

Nkana

Basement Complex

Katanga System or Supergroup

Post-Katanga Intrusives

Folding and Metamorphism

Metamorphism

Roan Antelope and Baluba

Basement Complex

Katanga System

Baluba

Folding and Metamorphism

Chibuluma and Chibuluma West

Basement Complex

Katanga System or Supergroup

Post-Katanga Intrusives

Folding and Metamorphism

Supergene Processes

Mufulira Mine, Zambia

Basement Complex

Katanga Supergroup

Paleogeography and Depositional Environmen

Summary

Genesis of the Ore Shale Deposits

Grain of the Basemen

Footwall Terrestrial Beds

Marine Transgression

Footwall Conglomerate

Bioherms, Plankton, and Sulfides

Transgression and Regression

Carbonaceous Muds

Ore in Basement

Karila Bomwe-Musoshi Area

Hanging-Wall Sediments

Continuity of the Ore Shale

Genesis of the Arenaceous Ore Deposits

Time and Space Relations to Ore-Shale Deposits

The Syngenetic Explanation

Evidence of Smaller Sedimentary Features

Folding

Mineral Zones

Transgression and Regression

Detrital Reworking

Source of the Metals

Syngenesis versus Epigenesis

Homogeneity of the Mineralization

Metal Zoning

Barren Bioherms

Cross-Bedding

Sharp Assay Cut-Offs

Diffuse Contacts

Mineralized and Barren Clasts

Sulfidite Layers

Washouts

Concretions

Ripple Marks

References

Chapter 7. Kupferschiefer in the German Democratic Republic (GDR) with Special Reference to the Kupferschiefer Deposit in the Southeastern Harz Foreland

Introduction

Geological-Tectonic Survey of the Kupferschiefer Deposits of the Southeastern Harz Foreland

Lithology and Palaeogeography

Base of the Kupferschiefer

Characteristics of the Kupferschiefer

The Upper Permian Limestone (Zechsteinkalk)

The "Rote Fäule"

Metal Types of the Kupferschiefer and their Distribution in Relation to the Palaeogeographical Situation

Ore-Mineral Parageneses of the Kupferschiefer and their Regional Distribution

Hematite Type (Paragenesis 1)

Covellite-Idaite Type (Paragenesis 2)

Chalcosine Type (Paragenesis 3)

Bornite-Chalcosine Type (Paragenesis 4)

Bornite Type (Paragenesis 5)

Bornite-Chalcopyrite Type (Paragenesis 6)

Chalcopyrite-Pyrite Type (Paragenesis 7)

Galena-Sphalerite-Chalcopyrite Type (Paragenesis 8)

Galena-Sphalerite Type (paragenesis 9)

Pyrite Type (paragenesis 10)

Regularities in the Occurrence of Non-Ferrous Metals, Trace Metals, and Ore Minerals

Investigation of Major and Trace Metals

Physicochemical Regularities

Effectiveness of Some Adsorbents in the Metal Concentration at Stronger Eh-potentials

Effectiveness of Some Adsorbents in the Metal Concentration Independent of Eh-potentials

History and Present Position Concerning the Genesis of the Kupferschiefer

Conclusions

References

Chapter 8. Sabkha and Tidal-Flat Facies Control of Stratiform Copper Deposits in North Texas

Introduction

Regional setting

Stratigraphy

Depositional Systems

Copper Breaks and Old Glory Fluvial-Deltaic Systems

Copper Breaks Deltaic System

Old Glory Fluvial-Deltaic System

Buzzard Peak and Cedar Mountain Tidal-Flat Systems

Buzzard Peak Sand-Rich Tidal-Flat System

Cedar Mountain Mud-Rich Tidal-Flat System

Blaine Sabkha and Tidal-Flat System

Depositional History

Copper Mineralization

Mineral Assemblage

Distribution of Copper Mineralization

Paragenesis

Origin of Copper Mineralization

Sabkha-Diagenetic Model

Epigenetic Models

Evaluation of Mineralization Models

Summary and Conclusions

Acknowledgements

Appendix

Methods

References

Chapter 9. Carbonate-Hosted Lead-Zinc Deposits

Introduction

Mississippi Valley Type

Alpine Type

Discussion

References

Chapter 10. Tri-State Ore Deposits: The Character of their Host Rocks and their Genesis

Introduction

Stratigraphy

Structure

General Features of the Ore Deposits

Runs

Circles

Blankets or Sheets

Mineralogy and Paragenesis

Host Rock Character

Limestones

Bioherms

Chert

Karst Features

Dolomite

Jasperoid

Genesis

References

Chapter 11. Appalachian Zinc-Lead Deposits

Introduction

Shallow-Water Marine Carbonate Host Rocks

Paleokarst and Paleoaquifer Environments

Mineralization

Austin Ville (Virginia)

Friedensville (Pennsylvania)

Stratigraphy

East Tennessee

Embreeville

Powell River District

Evanston District

Mascot-Jefferson City and Copper Ridge Districts

The Ore Environment

Coarse Rock Matrix Breccias

Fine Rock Matrix Breccias

Inflation Breccias

Ore Breccias

Central Tennessee

Genesis

References

Chapter 12. The Mcarthur Zinc-Lead-Silver Deposit: Features, Metallogenesis and Comparisons with Some Other Stratiform Ores

Introduction

Scope

Regional Geology, Northern Australia

Stratigraphy and Depositional Environments, Mcarthur Area

Myrtle Shale

Mara Dolomite

Mitchell Yard Dolomite

Teena Dolomite

W-Fold Shale

H.Y.C. Pyritic Shale

Cooley Dolomite

Reward Dolomite

Structure

General Features of the Mcarthur Deposit

Size

Orebodies and Inter-Ore Beds

Orebodies, 547 - Inter-Ore Beds

Mineral Relationships in the Orebodies

Pyrite

Sphalerite

Galena

Minor Sulphide Minerals

Geochemistry of the Orebodies

Zinc and Lead

Iron

Silver

Copper

Arsenic

Cadmium

Mercury

Antimony

Thallium

Other Elements

Minor Mineralization in the Mcarthur Area

H.Y.C. Pyritic Shale

Cooley Dolomite

Other Dolomite Units, Batten Trough

Shelf Sequences to East and West of Batten Troug

Mineral Dispersions Around Mcarthur Deposit

Sulphides

Non-Sulphides

Geochemical Dispersion Haloes Around Mcarthur Deposit

Elements With Dispersion Haloes

Other Elements

Isotope Data

Sulphur Isotopes

Lead Isotopes

Carbon and Oxygen Isotope Data

Genesis of Mcarthur Deposit

Arguments Against A Replacement Origin

Consideration of Volcano-Exhalative Metal Sources

Consideration of Metal Sources Unrelated to Volcanism

Sources of Non-Biogenic Sulphur

Significance of Structures and Organic Matter in Transport and Entrapment of Metals

Temperature Limits

Consideration of Low-Copper Content

Genesis of Minor Deposits

Comparisons with Other Stratiform Ores of Volcano-Sedimentary Associations

"McArthur-type" Pb-Zn-Ag Deposits of Australia

Possible "McArthur-type" Deposits of Other Countries

Other Ore Types

Conclusions

Acknowledgements

References

Description

Handbook of Strata-Bound and Stratiform Ore Deposits, Volume 6: Cu, Zn, Pb, and Ag Deposits focuses on the characteristics, properties, origins, and structures of Cu, Zn, Pb, and Ag deposits.

The selection first underscores a comparative review of the genesis of the copper-lead sandstone-type deposits; "volcanic" massive sulfide deposits and their host rocks; and tectonic setting of some strata-bound massive sulfide deposits in New South Wales, Australia. Discussions focus on tectonic setting of Cyprus-type and Kuroko-type strata-bound massive sulfide deposits; development of some tectonic units in which strata-bound massive sulfide deposits occur in the Paleozoic sequences of New South Wales; volcanic host rocks; and interim summary of field and laboratory data.

The text then ponders on Caledonian massive sulfide deposits in Scandinavia, Precambrian, strata-bound, massive Cu-Zn-Pb sulfide ores of North America, and geology of the Zambian Copperbelt. Concerns cover types of orebodies, structures of the Zambian Copperbelt, geology of representative deposits, general geological features, and lithostratigraphical relations of the ores. The manuscript takes a look at the McArthur zinc-lead-silver deposits, Appalachian zinc-lead deposits, and tri-state ore deposits.

The selection is a dependable source of data for researchers wanting to study Cu, Zn, Pb, and Ag deposits.


Details

Language:
English
Copyright:
© Elsevier Science 1976
Published:
Imprint:
Elsevier Science
eBook ISBN:
9780444599001

About the Authors

Author Unknown Author