Gold in Porphyry Copper Systems
Author : Edwin W. Tooker
Publisher :
Page : 68 pages
File Size : 49,90 MB
Release : 1990
Category : Copper ores
ISBN :
Author : Edwin W. Tooker
Publisher :
Page : 68 pages
File Size : 49,90 MB
Release : 1990
Category : Copper ores
ISBN :
Author : Society of economic geologists
Publisher :
Page : 618 pages
File Size : 24,94 MB
Release : 2012
Category : Copper ores
ISBN : 9781934969458
Author : B.A. Mamyrin
Publisher : Elsevier
Page : 288 pages
File Size : 33,71 MB
Release : 2013-10-22
Category : Science
ISBN : 148328980X
Developments in Geochemistry, Volume 3: Helium Isotopes in Nature presents the isotopic investigations of noble gases. This book describes the origin, the history, and the contemporary distribution of isotopes of helium. Organized into 11 chapters, this volume begins with an overview of mass-spectrometric methods and measurements of the helium isotope abundance. This text then discusses the methods of collecting various terrestrial samples as well as the apparatus for helium extraction, volumetric measurements, and purification. Other chapters consider the isotope composition of primordial, radiogenic, and spallogenic light noble gases. This book discusses as well the origin and distribution of helium isotopes in meteorites, in the Earth's mantle, the crust and ocean, and in the atmosphere. The final chapter deals with the scientific and applied problems that can be resolved to the progress in helium isotope geochemistry. This book is a valuable resource for scientists. Research workers and students interested in the geochemistry of helium will also find this book useful.
Author : Philip L. Verplanck
Publisher :
Page : 365 pages
File Size : 35,10 MB
Release : 2016
Category : Geology, Economic
ISBN : 9781629490922
Author : Jeffrey W. Hedenquist
Publisher :
Page : 0 pages
File Size : 22,1 MB
Release : 2005
Category :
ISBN : 9781887483018
Author : T. Aïfa
Publisher : Geological Society of London
Page : 357 pages
File Size : 23,98 MB
Release : 2021-07-22
Category : Science
ISBN : 1786204894
This Special Publication combines results obtained by interdisciplinary groups from numerous academic institutions working on Paleoproterozoic formations to decipher the origins of the main mineralization resources in the West African Craton (WAC) and their impacts on African economic development. Structural, geophysical, sedimentological, stratigraphical, geochemical, petrophysical and mineralogical analyses have been used to highlight the complexities involved in mineralization emplacement and its origin and evolution within the WAC. Fourteen articles contribute to new knowledge in mineral research. They show that the geodynamic evolution of the WAC is complex from one area to another: it involves subduction, collision and obduction during several deformation phases ranging from Birimian (2.3–2.0 Ga) to Pan-African (650–450 Ma) events. Various modelling techniques, when integrated, help in understanding the mechanisms of mineralization emplacement, some of which are still a matter of debate. The challenge for further studies is mitigation for sustainable development that can be appropriately used to minimize such damage.
Author : Daniel Müller
Publisher : Springer
Page : 225 pages
File Size : 40,90 MB
Release : 2013-04-17
Category : Science
ISBN : 366200920X
In recent years, there has been increasing interest from geoscientists in potassic ig neous rocks. Academic geoscientists have been interested in their petrogenesis and their potential value in defining the tectonic setting of the terranes into which they were intruded, and exploration geoscientists have become increasingly interested in the association of these rocks with major epithermal gold and porphyry gold-copper deposits. Despite this current interest, there is no comprehensive textbook that deals with these aspects of potassic igneous rocks. This book redresses this situation by elucidating the characteristic features of potassic (high-K) igneous rocks, erecting a hierarchical scheme that allows interpre tation of their tectonic setting using whole-rock geochemistry, and investigating their associations with a variety of gold and copper-gold deposits, worldwide. About two thirds of the book is based on a PhD thesis by Dr Daniel Muller which was produced at the Key Centre for Strategic Mineral Deposits within the Department of Geology and Geophysics at The University of Western Australia under the supervision of Professor David Groves, the late Dr Nick Rock, Professor Eugen Stumpf!, Dr Wayne Taylor, and Dr Brendon Griffin. The remainder of the book has been compiled from the literature using the collective experience of the two authors. The book is dedi cated to the memory of Dr Rock who initiated the research project but died before its completion.
Author : Greg John Corbett
Publisher :
Page : 262 pages
File Size : 21,33 MB
Release : 1998
Category : Copper ores
ISBN :
Author : Kula Misra
Publisher : Springer Science & Business Media
Page : 857 pages
File Size : 46,51 MB
Release : 2012-12-06
Category : Science
ISBN : 9401139253
Mineral deposits have supplied useful or valuable material for human consumption long before they became objects of scientific curiosity or commercial exploitation. In fact, the earliest human interest in rocks was probably because of the easily accessible, useful (e. g. , red pigment in the form of earthy hematite) or valuable (e. g. , native gold and gemstones) materials they contained at places. In modem times, the study of mineral deposits has evolved into an applied science employing detailed field observations, sophisticated laboratory techniques for additional information, and computer modeling to build complex hypotheses. Understanding concepts that would someday help geologists to find new mineral deposits or exploit the known ones more efficiently have always been, and will continue to be, at the core of any course on mineral deposits, but it is a fascinating subject in its own right, even for students who do not intend to be professional economic geologists. I believe that a course on mineral deposits should be designed as a "capstone course" that illustrates a comprehensive application of concepts from many other disciplines in geology (mineralogy, stratigraphy and sedimentation, structure and tectonics, petrology, geochemistry, paleontology, geomorphology, etc. ). This book is intended as a text for such an introductory course in economic geology, primarily for senior undergraduate and graduate students in colleges and universities. It should also serve as a useful information resource for professional economic geologists.
Author : Geological Survey (É.-U.)
Publisher :
Page : 0 pages
File Size : 15,35 MB
Release : 1990
Category :
ISBN :