The Lithogeochemical And Mineralogical Setting Of Turbidite Hosted Arsenic Gold Deposits In The Lower Palaeozoic Of Scotland
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The Lithogeochemical And Mineralogical Setting Of Turbidite Hosted Arsenic Gold Deposits In The Lower Palaeozoic Of Scotland
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Author : Paul R. Duller
language : en
Publisher:
Release Date : 1989
The Lithogeochemical And Mineralogical Setting Of Turbidite Hosted Arsenic Gold Deposits In The Lower Palaeozoic Of Scotland written by Paul R. Duller and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
Geology Of The Rhins Of Galloway District
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Author : P. Stone
language : en
Publisher: Stationery Office Books (TSO)
Release Date : 1995
Geology Of The Rhins Of Galloway District written by P. Stone and has been published by Stationery Office Books (TSO) this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Science categories.
The Rhins of Galloway district lies in the south-west of Scotland and marks the termination of the Southern Uplands against the North Channel. This memoir and the accompanying 1:50 000 solid geology map provide detailed subdivision of the Ordovician and Silurian turbidite strata. The conclusions are of significance to the Southern Uplands terrane as a whole and also to its equivalents in Ireland and maritime Canada. Other major sections of the memoir discuss the syn- and post-tectonic intrusive rocks, the development of the late Palaeozoic Stranraer half-graben and the regional structural framework as deduced from geophysical data.
British Reports Translations And Theses
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Author : British Library. Document Supply Centre
language : en
Publisher:
Release Date : 1996
British Reports Translations And Theses written by British Library. Document Supply Centre and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Dissertations, Academic categories.
Index To Theses With Abstracts Accepted For Higher Degrees By The Universities Of Great Britain And Ireland And The Council For National Academic Awards
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Author :
language : en
Publisher:
Release Date : 1992
Index To Theses With Abstracts Accepted For Higher Degrees By The Universities Of Great Britain And Ireland And The Council For National Academic Awards written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Dissertations, Academic categories.
Theses on any subject submitted by the academic libraries in the UK and Ireland.
An Examination Of The Pyrite Gold And Arsenopyrite Gold Systems
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Author : Matthew Francis Mann
language : en
Publisher:
Release Date : 2017
An Examination Of The Pyrite Gold And Arsenopyrite Gold Systems written by Matthew Francis Mann and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Geochemistry categories.
Invisible gold is a type of gold ore that consists of micrometer sized blebs of native gold and structurally bound gold in iron sulfides, most commonly pyrite, arsenian pyrite and arsenopyrite. Invisible gold is found in hydrothermal-type gold deposits, can make up a large percentage of the gold found in that deposit, and has been noted to be related directly to the arsenic concentration of the crystal, with increasing arsenic concentrations correlating with increasing gold concentrations. The relationship between arsenic and gold was evaluated by conducting experiments at 200 °C, 300 °C, 400 °C, 500 °C and 600 °C. Pyrite or arsenopyrite seed crystals were placed into quartz or silica-based glass vessels with a synthetic hydrothermal fluid and metallic gold for a minimum and maximum of 60 and 370 days, respectively. Run products were analyzed by electron microprobe and laser ablation inductively coupled plasma mass spectrometry. Gold concentrations in arsenopyrite and pyrite rims ranged from 0.058 to 0.685 and 0.011 to 0.073 microg/g at 200 °C, respectively. Gold concentrations were 0.194 to 2.641 and 0.076 to 0.324 microg/g at 600 °C in the rims of arsenopyrite and pyrite, respectively. Gold concentrations were higher in the rims of run product crystals and lower in the crystal cores and were found to increase with increasing temperature. This study showed that the presence of arsenic enhanced the concentration of gold in pyrite and arsenopyrite at the conditions of the experiments, but, the concentrations observed were lower than concentrations observed in some natural samples, which can reach up to 10,000 microg/g. This suggests that surficial processes, most likely through chemisorption and/or electrosorption during crystal growth, attract gold ions, atoms, and/or molecules to the surface of the mineral to aid in enhancing gold concentrations in arsenic-bearing minerals.
Economic Geology
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Author : Walter L. Pohl
language : en
Publisher: John Wiley & Sons
Release Date : 2011-03-03
Economic Geology written by Walter L. Pohl and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-03-03 with Science categories.
Humanity’s ever-increasing hunger for mineral raw materials, caused by a growing global population and ever increasing standards of living, has resulted in economic geology becoming a subject of urgent importance. This book provides a broad panorama of mineral deposits, covering their origin and geological characteristics, the principles of the search for ores and minerals, and the investigation of newly found deposits. Practical and environmental issues that arise during the life cycle of a mine and after its closure are addressed, with an emphasis on sustainable and "green" mining. The central scientific theme of the book is to place the extraordinary variability of mineral deposits in the frame of fundamental geological processes. The book is written for earth science students and practicing geologists worldwide. Professionals in administration, resource development, mining, mine reclamation, metallurgy, and mineral economics will also find the text valuable. Economic Geology is a fully revised translation of the the fifth edition of the German language text Mineralische und Energie-Rohstoffe. Additional resources for this book can be found at: www.wiley.com/go/pohl/geology. The author's website can be found at: http://www.walter-pohl.com.
Gold Metallogeny And Exploration
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Author : R. P. Foster
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Gold Metallogeny And Exploration written by R. P. Foster and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Within the last decade, the high and continuing demand for gold has prompted a global gold rush on a scale never before seen, not even in the heady days of Ballarat, California and the Yukon. Gold is being sought on every continent and, with very few exceptions, in every country around the world. Such interest and fierce competition has demanded considerable innovation and improvement in exploration techniques paralleled by a rapid expansion of the geological database and consequent genetic modelling for the many different types of gold deposits now recognized. This proliferation of data has swamped the literature and left explorationist and academic alike unable to sift more than a small proportion of the accumulating information. This new book represents an attempt to address this major problem by providing succinct syntheses ofall major aspects ofgold metallogeny and exploration, ranging from the chemical distribution of gold in the Earth's crust, and the hydrothermal chemistry of gold, to Archaean and Phanerozoic lode deposits, epithermal environments, chemical sediments, and placer deposits, and culminates in chapters devoted to geochemical and geophysical exploration, and the economics of gold deposits. Each chapter is written by geoscientists who are acknowledged internationally in their respective fields, thus guaranteeing a broad yet up-to-date coverage. In addition, each chapter is accompanied by reference lists which provide readers with access to the most pertinent and useful publications.
Drainage Geochemistry
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Author : M. Hale
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Drainage Geochemistry written by M. Hale and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Science categories.
The considerable exploration success achieved by geochemistry over the last several decades - and still continuing - has provided both the basis and rationale for the Handbook of Exploration Geochemistry series, including Volume 6, Drainage Geochemistry in Mineral Exploration. With contributions from 25 experts of truly global professional experience in drainage geochemistry, this book is a thorough appraisal of the state of the art in the use of surface and sub-surface waters, stream and lake sediments, heavy minerals for mineral exploration in tropical rain forests, temperate glaciated terrains, mountain chains, arid deserts and regions of agricultural and industrial pollution. Additional attention is given to gold and uranium exploration, and to the growing role of drainage geochemistry as a multi-purpose environmental mapping technique with applications in human health studies, ore deposit modelling and pollution monitoring. It comprises 16 chapters, more than 250 figures and a bibliography of some 1600 references. This book is the most extensive and detailed single work on the principles and applications of drainage geochemistry in mineral exploration blending both theoretical considerations and practical implementations.
Archean Crustal Evolution
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Author : K.C. Condie
language : en
Publisher: Elsevier
Release Date : 1994-11-11
Archean Crustal Evolution written by K.C. Condie and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-11-11 with Science categories.
The integration of Tectonics/Geochemistry, up-to-date reviews by leading scientists as well as a broad topical coverage of the Archean, are some of the features of this particular volume. As geochronology has progressed in the last 20 years, the Archean has continued to attract interest. Advancements in the understanding of Archean crustal and mantle evolution have progressed rapidly since the first International Archean Symposium in Western Australia (1970). The landmark for the Archean was the NATO Advanced Study Institute at Leicester (1975). At this meeting the Archean truly "came of age". Investigators from many different disciplines focused their expertise on the early history of the earth. For the first time, the nature of the atmosphere, oceans, and life during the Archean was an important part of an Archean symposium. During the most recent Archean Symposium in Perth in 1990, there was a shift in interest from field and trace element data to the new rapidly evolving high-precision U/Pb geochronology of Archean rocks and to detailed structural studies of both low and high grade Archean terrains. The terrane concept so widely applied to the Phanerozoic was proposed for the Archean Yilgarn Province in Western Australia and is now widely accepted for the Archean (as evident by the articles in this book). Plate tectonics is now widely accepted as the principal process that controls the history of continents and oceans. There are, though, well substantiated differences between Archean and post-Archean rocks that indicate that Archean tectonic regimes must have differed in some respects from modern ones. The question of how and to what degree did Archean plate tectonics differ from modern plate tectonics is treated in many of the chapters of this book. Altogether, the editor has presented a selection of articles that provide a fascinating insight into the latest observations in this field.
Recent Research On Geomorphology Sedimentology Marine Geosciences And Geochemistry
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Author : Attila Çiner
language : en
Publisher: Springer Nature
Release Date : 2022-01-12
Recent Research On Geomorphology Sedimentology Marine Geosciences And Geochemistry written by Attila Çiner and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-01-12 with Science categories.
This edited book is based on the papers accepted for presentation during the 2nd Springer Conference of the Arabian Journal of Geosciences (CAJG-2), Tunisia, in 2019. Major subjects treated in the book include geomorphology, sedimentology, and geochemistry. The book presents an updated unique view in conjugating field studies and modeling to better quantify the process-product binomial unusual in geosciences. In the geomorphology section, 24 papers deal with topics related to fault slip and incision rates, soil science, landslides and debris flows, coastal processes, and geoarcheology, and geoheritage. Under the sedimentology section, 34 papers including stratigraphy, and environmental, tectonic, and diagenetic processes, together with evolutionary, biostratigraphic, and paleo-environmental significance of paleontology are presented. Additionally, this section also contains papers on marine geosciences, from molecular proxies related to climate to geophysical surveys. Last but not least, the third section on geochemistry is composed of 26 papers that are focused on sedimentary geochemistry and mineralogical characterization, magmatic and metamorphic processes and products, and the origin and exploration of mineral deposits. This book resumes the current situation related to the abovementioned topics mainly in the Mediterranean realm. The volume book is of interest to all researchers, practitioners, and students in the fields of geomorphology, sedimentology, and geochemistry, as well as those engaged in environmental geosciences, soil science, stratigraphy and paleontology, geoarcheology and geoheritage, marine geosciences, petrology, metallogenesis, and mineral deposits.