Preface.
Introduction: Mineral Resources:.
Introduction And Aims.
What Makes A Viable Mineral Deposit?.
Some Useful Definitions And Compilations.
Natural Resources, Sustainability And Environmental
Responsibility.
Summary And Further Reading.
Part I: Igneous Processes:.
1. Igneous Ore-Forming Processes:.
Introduction.
Magmas And Metallogeny.
Why Are Some Magmas More Fertile Than Others??The
?Inheritance Factor?.
Partial Melting And Crystal Fractionation As Ore Forming
Processes.
Liquid Immiscibility As An Ore-Forming Process.
A More Detailed Consideration Of Mineralization In Mafic
Magmas.
A Model For Mineralization In Layered Mafic Intrusions.
Summary And Further Reading.
2. Magmatic-Hydrothermal Ore-Forming Processes:.
Introduction.
Some Physical And Chemical Properties Of Water.
Formation Of A Magmatic Aqueous Phase.
The Composition And Characteristics Of Magmatic-Hydrothermal
Solutions.
A Note On Pegmatites And Their Significance To Granite-Related
Ore-Forming Processes.
Fluid-Melt Trace Element Partitioning.
Water Content And Depth Of Emplacement Of Granites:
Relationships To Ore-Forming Processes.
Models For The Formation Of Porphyry-Type Cu, Mo And W
Deposits.
Fluid Flow In And Around Granite Plutons.
Skarn Deposits.
Near-Surface Magmatic-Hydrothermal Processes: The
?Epithermal Family Of Au-Ag-(Cu) Deposits.
The Role Of Hydrothermal Fluids In Mineralized Mafic Rocks.
Summary And Further Reading.
Part II: Hydrothermal Processes:.
3. Hydrothermal Ore-Forming Processes:.
Introduction.
Other Fluids In The Earth?s Crust And Their Origins.
The Movement Of Hydrothermal Fluids In The Earth?s
Crust.
Further Factors Affecting Metal Solubility.
Precipation Mechanisms For Metals In Solution.
More On Fluid/Rock Interaction: An Introduction To Hydrothermal
Alteration.
Metal Zoning And Paragenetic Sequence.
Modern Analogues Of Ore-Forming Processes: The VMS-SEDEX
Continuum.
Mineral Deposits Associated With Aquo-Carbonic Metamorphic
Fluids.
Ore Deposits Associated With Connate Fluids.
Ore Deposits Associated With Near Surface Meteoric Fluids
(Ground Water).
Summary And Further Reading.
Part III: Sedimentary/Surficial Processes:.
4. Surficial and Supergene Ore-Forming Processes:.
Introduction.
Principles.
Lateritic Deposits.
Clay Deposits.
Calcrete-Hosted Deposits.
Supergene Enrichment Of Cu And Other Metals In Near-Surface
Deposits.
Summary And Further Reading.
5. Sedimentary Ore-Forming Processes:.
Introduction.
Clastic Sedimentation And Heavy Mineral Concentration: Placer
Deposits.
Chemical Sedimentation: Banded Iron Formation, Phosphorites,
And
Evaporites.
Fossil Fuels: Oil/Gas Formation And Coalification.
Summary And Further Reading.
Part IV: Global Tectonics And Metallogeny:.
6. Ore Deposits in a Global Tectonic Context:.
Introduction.
Patterns In The Distribution Of Mineral Deposits.
Continental Growth Rates.
Crustal Evolution And Metallogenesis.
Metallogeny Through Time.
Plate Tectonics And Ore Deposits: A Summary.
Summary And Further Reading.
References.
Index
Laurence Robb is Pavitt Professor of Economic Geology at the University of the Witwatersrand, Johannesburg, South Africa, and also Director of its Economic Geology Research Institute. He has worked for over 20 years on many of the great mineral districts of the African continent and has taught economic geology at Wits for almost as long.
"This book undoubtedly succeeds in addressing the intrinsic
complexities that surround the formation of ore deposits in any
environmental setting. It also demonstrates that ore-forming
processes are integrally linked to the various wonders of the
earth
system, and paves the ground on which economic geology can find
its
deserved place in modern earth-science curricula, irrespective
of
the periodic declines of interest in ore dposit research from a
purely commercial viewpoint...I can only recommend this textbook
to
all those interested, whether from the academic world or from
the
industry, in the challenges of mineral deposits and their
origins."
Harilaos Tsikos, University of Aberdeen, Geofluids, May
2004
"Here at last is a first-class senior
undergraduate-postgraduate
texbook focused on the spectrum of geological processes involved
in
the genesis of ore deposits...No question whatever,
Introduction
to Ore-Forming Processes succeeds in its principal stated
purpose, that being "...to provide a better understanding of
the
processes as well as the nature and origin, of mineral
occurrences
and how they fit into the Earth sytem."
The Canadian Mineralogist, March 2005
"The book brings a fresh new look to an old topic; it is
balanced as to coverage, it is well and engagingly written, it
is
up to date, and it is global in coverage. I recommend the
volume."
American Mineralogist, January 2005
"This is an excellent book . . . The text of the book is very
well-written. The author describes lucidly (and patiently) all
important features of specific processes, so that the reader
can
easily follow his arguments."
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