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Author : David Richard Lentz
Publisher :
ISBN 13 :
Total Pages : 686 pages
Book Rating : 4.3/5 (91 download)
Download or read book Mineralized Intrusion-related Skarn Systems written by David Richard Lentz and published by . This book was released on 1998 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gerald E. Ray
Publisher :
ISBN 13 :
Total Pages : 328 pages
Book Rating : 4.F/5 ( download)
Download or read book Skarns in British Columbia written by Gerald E. Ray and published by . This book was released on 1997 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Skarns in British Columbia have historically been important sources of iron, tungsten, copper, and gold. This publication begins with an introduction on skarn terminology and the problems of skarn identification. It then reviews a genetic model of skarn formation and presents descriptive profiles of eight types of skarn deposits; describes the database of at least 735 skarn occurrences in the province, and the number and distribution of skarns in British Columbia according to their associations, class, age, and distribution; and notes the ages of British Columbia skarns and the total production of various metals extracted from British Columbia skarns. Subsequent sections provide information on assays and metal ratios of mineralized skarns, skarn mineralogy, skarn mineral chemistry, chemistry of skarn-related intrusions, and the mapping and evaluation of skarns. The appendix contains a listing of 735 skarn occurrences in British Columbia, giving deposit name, MINFILE number, latitude/longitude, elements and minerals present, and associated rocks and their ages.
Author : Ronald Massawe
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (133 download)
Download or read book Petrogenesis of Cu-Ag Skarn Mineralization in the Mackenzie Gulch Area, Northern New Brunswick, Canada written by Ronald Massawe and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Northern New Brunswick and the adjacent Gaspé Peninsula of Québec host numerous contact metasomatic Cu–Au skarn deposits commonly in proximity to small Siluro–Devonian intermediate to felsic stocks and/or dikes. In this region, specifically northern New Brunswick, skarn occurrences are principally hosted within the late Ordovician to early Silurian Matapédia Group, which consists of thin-bedded, dark grey argillaceous limestone and calcareous siltstone. This thesis investigated Cu–Ag skarn occurrences at the McKenzie Gulch (MG) area in northern New Brunswick by integrating field observations, petrographic, petrochemical, electron-probe microanalysis (EPMA), laser ablation inductively coupled plasma-mass spectrometry (LA-ICP-MS), fluid inclusions, geochronology (U–Pb zircon and titanite), stable S isotopes, and radiogenic Pb isotopes with the main objective being to understand the petrogenesis of skarn occurrences and establish their relationship to the intrusive rocks. This investigation involved the evaluation of porphyry dikes that are spatially and temporally related to these skarn systems by examining potential parameters that are known to be associated with the genesis of intrusion-related deposits. These magmatic aspects include oxidation state of the magma, water content, P–T conditions, in addition to magma source characteristics, formation, petrochemistry, evolution and emplacement conditions. As a result, two suites of porphyry dikes were recognized in the MG area during this evaluation: (1) plagioclase–hornblende (P–H), and (2) quartz–plagioclase (Q–P) porphyry suites. These Middle Devonian (386.0 ± 2.3 Ma) intrusive rocks are mildly oxidized, I-type granitoids with calc-alkaline affinity that range in composition from granodioritic to tonalitic (with few granitic), based on their petrochemical features. These dikes also exhibit adakite characteristics, a geochemical feature that has been widely associated with many porphyry Cu (and skarn) systems. Petrochemical features and cathodoluminescence (CL) characteristics of quartz crystals from these suites of dikes suggest that two magma chambers were responsible for evolution of these intrusive rocks. The three types of quartz crystals with contrasting CL features have been attributed to at least three different environments of crystallization: 1) a higher temperature environment (up to 915 oC) as recorded by cores of phenocrysts with high Ti concentrations (up to 200 ppm); 2) a moderate to high temperature (≥ 700 ≤ 750 oC) environment as recorded by the transition zones within quartz phenocrysts and microphenocrysts; and 3) a low temperature environment in which groundmass quartz quench crystallized during hypabyssal dike emplacement. Studies of the mineral chemistry showed that composition of calc-silicates (i.e., garnets and pyroxene) have intimate relationship with the dominant metal of the mineralized skarns. These calc-silicate phases plot in their respective compositional fields of Cu-dominated skarns. The investigation conducted on fluid inclusion, geochronology, stable isotope, and mineralization supports field observations, which indicates that skarn formations at the MG area have an association with the intruding porphyry dikes and that this skarn is very similar to and shows no difference with the characteristics of other world-class, intrusion-related skarn systems. Geochronological studies based on U–Pb zircon and hydrothermal titanite indicates a coeval relationship between mineralization and dikes emplacement, suggesting that mineralization in the MG area is short lived or it occurred near the end of magmatic-hydrothermal activity.
Author : Alcides Nóbrega Sial
Publisher : Geological Society of London
ISBN 13 : 9781862393219
Total Pages : 202 pages
Book Rating : 4.3/5 (932 download)
Download or read book Granite-related Ore Deposits written by Alcides Nóbrega Sial and published by Geological Society of London. This book was released on 2011 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together a collection of papers that summarize current ideas and recent progress in the study of granite-related mineralization systems. They provide a combination of field, experimental and theoretical studies. Papers are grouped according to the main granite-related ore systems: granite-pegmatite, skarn and greisen-veins, porphyry, orogenic gold, intrusion-related, epithermal and porphyry-related gold and base metal, iron oxide-copper-gold (IOCG), and special case studies. The studies provide a broad spread in terms of both space and time, highlighting granite-related ore deposits from Europe (Russia, Sweden, Croatia and Turkey), the Middle East (Iran), Asia (Japan and China) and South America (Brazil and Argentina) and spanning rocks from Palaeoproterozoic to Miocene in age.
Author : Swapan Kumar Haldar
Publisher : Elsevier
ISBN 13 : 0323851363
Total Pages : 437 pages
Book Rating : 4.3/5 (238 download)
Download or read book Introduction to Mineralogy and Petrology written by Swapan Kumar Haldar and published by Elsevier. This book was released on 2020-07-29 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Mineralogy and Petrology, second edition, presents the essentials of both disciplines through an approach accessible to industry professionals, academic researchers, and students alike. This new edition emphasizes the relationship between rocks and minerals, right from the structures created during rock formation through the economics of mineral deposits. While petrology is classified on the lines of geological evolution and rock formation, mineralogy speaks to the physical and chemical properties, uses, and global occurrences for each mineral, emphasizing the need for the growth of human development. The primary goal is for the reader to identify minerals in all respects, including host-rocks, and mineral deposits, with additional knowledge of mineral-exploration, resource, extraction, process, and ultimate use. To help provide a comprehensive analysis across ethical and socio-economic dimensions, a separate chapter describes the hazards associated with minerals, rocks, and mineral industries, and the consequences to humanity along with remedies and case studies. New to the second edition: includes coverage of minerals and petrology in extra-terrestrial environments as well as case studies on the hazards of the mining industry. Addresses the full scope of core concepts of mineralogy and petrology, including crystal structure, formation and grouping of minerals and soils, definition, origin, structure and classification of igneous, sedimentary and metamorphic rocks Features more than 250 figures, illustrations and color photographs to vividly explore the fundamental principles of mineralogy and petrology Offers a holistic approach to both subjects, beginning with the formation of geologic structures that is followed by the hosting of mineral deposits and the exploration and extraction of lucrative, usable products that improve the health of global economies Includes new content on minerals and petrology in extraterrestrial environments and case studies on hazards in the mining industry
Author : Sophie Decree
Publisher : John Wiley & Sons
ISBN 13 : 1119290538
Total Pages : 272 pages
Book Rating : 4.1/5 (192 download)
Download or read book Ore Deposits written by Sophie Decree and published by John Wiley & Sons. This book was released on 2019-04-23 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest knowledge on mineral ore genesis and the exploration of ore deposits Global demand for metals has risen considerably over the past decade. Geologists are developing new approaches for studying ore deposits and discovering new sources. Ore Deposits: Origin, Exploration, and Exploitation is a compilation of diverse case studies on new prospects in ore deposit geology including atypical examples of mineral deposits and new methods for ore exploration. Volume highlights include: Presentation of the latest research on a range of ore deposit types Application of ore deposits to multiple areas of geology and geophysical exploration Emphasis on diverse methods and tools for the study of ore deposits Useful case studies for geologists in both academia and industry Ore Deposits: Origin, Exploration, and Exploitation is a valuable resource for economic geologists, mineralogists, petrologists, geochemists, mining engineers, research professionals, and advanced students in relevant areas of academic study. Read an interview with the editors to find out more: https://eos.org/editors-vox/developments-in-the-continuing-search-for-new-mineral-deposits
Author : Steffen Gerd Hagemann
Publisher :
ISBN 13 :
Total Pages : 584 pages
Book Rating : 4.3/5 (91 download)
Download or read book Gold in 2000 written by Steffen Gerd Hagemann and published by . This book was released on 2000 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wayne David Goodfellow
Publisher :
ISBN 13 :
Total Pages : 1080 pages
Book Rating : 4.F/5 ( download)
Download or read book Mineral Deposits of Canada written by Wayne David Goodfellow and published by . This book was released on 2007 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.F/5 ( download)
Download or read book Progress on Geoenvironmental Models for Selected Mineral Deposits Types written by and published by . This book was released on 2002 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alain Chauvet
Publisher : MDPI
ISBN 13 : 3038977845
Total Pages : 256 pages
Book Rating : 4.0/5 (389 download)
Download or read book Structural Control of Mineral Deposits written by Alain Chauvet and published by MDPI. This book was released on 2019-04-16 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Structural Control” remains a crucial point that frequently lacks in any scientific and/or economic analysis of ore deposits, whatever their type and class. The case of lode deposits is exemplary, although also other deposits, like breccia pipe, stockwerk, massive sulphides, skarn, etc., can, surprisingly, be concerned. Several concepts like the gold-bearing shear zone have not proven valid during the last few decades in terms of our understanding of gold deposit and have been totally abandoned. Additionally, the relationships between magmatism, regional tectonic context, and mineralization remain uncertain and have been debated in several recent publications. This demonstrates that this issue is still relevant, and its solution may help in the distinction between intrusion-related and orogenic deposits. In this Special Issue, we particularly invite any case study of mineral deposits, in which it has been demonstrated that structural geology may have a significant role in the establishment of the deposit model of formation and/or on exploration and exploitation programs. Examples in which the structural model diverges from those described in the classical literature are particularly welcomed, including studies in which relationships with magmatism can be suspected and/or demonstrated. Indeed, all cases that illustrate concepts that differ from the classic ones and from theoretical models may represent significant contributions to this volume.
Author : Mohammed Bouabdellah
Publisher : Springer
ISBN 13 : 3319317334
Total Pages : 585 pages
Book Rating : 4.3/5 (193 download)
Download or read book Mineral Deposits of North Africa written by Mohammed Bouabdellah and published by Springer. This book was released on 2016-06-21 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents an exhaustive overview of major orebodies and mineral deposits of North Africa. It is intended both for academic researchers and especially for exploration geologists interested in mineral exploration in the northern part of the African continent. Recent changes in the mining laws of most countries in this region have encouraged international mining companies to invest in local mineral industries. Accordingly, this volume will be very useful for these professionals, as well as for researchers in the field of economic geology.
Author : Greg John Corbett
Publisher :
ISBN 13 :
Total Pages : 262 pages
Book Rating : 4.F/5 ( download)
Download or read book Southwest Pacific Rim Gold-copper Systems written by Greg John Corbett and published by . This book was released on 1998 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Penelope King
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 1501511793
Total Pages : 534 pages
Book Rating : 4.5/5 (15 download)
Download or read book High Temperature Gas-Solid Reactions in Earth and Planetary Processes written by Penelope King and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-03 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: High temperature gas-solid reactions are ubiquitous on planetary bodies, distributing chemical elements over a range of geologic settings and temperatures. This volume reviews the critical role gas-solid reactions play in early solar system formation, volcanism, metamorphism and industrial processes. The field evidence, experimental and theoretical approaches for examining gas-solid reaction are presented, building on advances in fields outside of Earth Sciences. Computational chemistry techniques are used to probe the nature of molecular clusters and solvation in volcanic vapors and mineral-gas reaction mechanisms. Specialised analytical methods for characterising solid reaction products are included since these reactions commonly form thin or dispersed films and metastable minerals. Finally, the volume contains rich field examples, laboratory experiments and thermodynamic modelling and kinetics of gas-solid reactions on Earth, Venus and beyond.
Author :
Publisher : Newnes
ISBN 13 : 0080983006
Total Pages : 14787 pages
Book Rating : 4.0/5 (89 download)
Download or read book Treatise on Geochemistry written by and published by Newnes. This book was released on 2013-10-19 with total page 14787 pages. Available in PDF, EPUB and Kindle. Book excerpt: This extensively updated new edition of the widely acclaimed Treatise on Geochemistry has increased its coverage beyond the wide range of geochemical subject areas in the first edition, with five new volumes which include: the history of the atmosphere, geochemistry of mineral deposits, archaeology and anthropology, organic geochemistry and analytical geochemistry. In addition, the original Volume 1 on "Meteorites, Comets, and Planets" was expanded into two separate volumes dealing with meteorites and planets, respectively. These additions increased the number of volumes in the Treatise from 9 to 15 with the index/appendices volume remaining as the last volume (Volume 16). Each of the original volumes was scrutinized by the appropriate volume editors, with respect to necessary revisions as well as additions and deletions. As a result, 27% were republished without major changes, 66% were revised and 126 new chapters were added. In a many-faceted field such as Geochemistry, explaining and understanding how one sub-field relates to another is key. Instructors will find the complete overviews with extensive cross-referencing useful additions to their course packs and students will benefit from the contextual organization of the subject matter Six new volumes added and 66% updated from 1st edition. The Editors of this work have taken every measure to include the many suggestions received from readers and ensure comprehensiveness of coverage and added value in this 2nd edition The esteemed Board of Volume Editors and Editors-in-Chief worked cohesively to ensure a uniform and consistent approach to the content, which is an amazing accomplishment for a 15-volume work (16 volumes including index volume)!
Author : Axel Liebscher
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 1501509594
Total Pages : 648 pages
Book Rating : 4.5/5 (15 download)
Download or read book Epidotes written by Axel Liebscher and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 56 of the Reviews in Mineralogy and Geochemistry reviews the current state of knowledge on the epidote minerals with special emphasis on the advances that were made since the comprehensive review of Deer et al. (1986). In the Introduction, we review the structure, optical data and crystal chemistry of this mineral group, all of which form the basis for understanding much of the following material in the volume. In addition, we provide some information on special topics, such as morphology and growth, deformation behavior, and gemology. Thermodynamic properties (Chapter 2, Gottschalk), the spectroscopy of the epidote minerals (Chapter 3, Liebscher) and a review of the experimental studies (Chapter 4, Poli and Schmidt) constitute the first section of chapters. These fields are closely related, and all three chapters show the significant progress over the last years, but that some of the critical questions such as the problem of miscibility and miscibility gaps are still not completely solved. This section concludes with a review of fluid inclusion studies (Chapter 5, Klemd), a topic that turned out to be of large interest for petrogenetic interpretation, and leads to the description of natural epidote occurrences in the second section of the book. These following chapters review the geological environments of the epdiote minerals, from low temperature in geothermal fields (Chapter 6, Bird and Spieler), to common metamorphic rocks (Chapter 7, Grapes and Hoskin) and to high- and ultrahigh pressure (Chapter 8, Enami, Liou and Mattinson) and the magmatic regime (Chapter 9, Schmidt and Poli). Allanite (Chapter 10, Gieré and Sorensen) and piemontite (Chapter 11, Bonazzi and Menchetti), on which a large amount of information is now available, are reviewed in separate chapters. Finally trace element (Chapter 12, Frei, Liebscher, Franz and Dulski) and isotopic studies, both stable and radiogenic isotopes (Chapter 13, Morrison) are considered. We found it unavoidable that there is some overlap between individual chapters. This is an inherited problem in a mineral group such as the epidote minerals, which forms intensive solid solutions between the major components of rock forming minerals as well as with trace elements.
Author : A. Piestrzynski
Publisher : CRC Press
ISBN 13 : 1000142639
Total Pages : 1188 pages
Book Rating : 4.0/5 (1 download)
Download or read book Mineral Deposits at the Beginning of the 21st Century written by A. Piestrzynski and published by CRC Press. This book was released on 2022-05-02 with total page 1188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Joint 6th Biennial SGA-SEG Meeting was held in Krakow in August 2001. This volume contains 274 extended abstracts, grouped thematically under 18 session titles covering topics such as lead-zinc deposits; metamorphism affecting mineral deposits; and the environmental aspects of mining.
Author : Jeffrey W. Hedenquist
Publisher :
ISBN 13 : 9781887483018
Total Pages : 0 pages
Book Rating : 4.4/5 (83 download)
Download or read book Economic Geology written by Jeffrey W. Hedenquist and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
