Download or read book Geological Survey of Canada Current Research Online no 2004 C6 written by S. Connell-Madore and published by Natural Resources Canada. This book was released on 2004 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this paper is to document results of the determination of electrical resistivity characteristics of schist samples from the Gold Lake area of the Yellowknife mining district, Northwest Territories, for use in interpreting ground electromagnetic surveys that have been conducted in that region. Results are presented from investigations of electrical conductivity mechanisms determined for five sub-samples taken from two mineralized schist samples selected to characterize the resistivity of the alteration zone and to determine the effect of cross-cutting veins & of fine-grained sulphide minerals oriented parallel to foliation. Resistivity-related factors examined in the study include sulphide grain connectivity, the insulating quality of quartz & calcite grain layers, and pore-fluid connectivity.
Download or read book Geological Survey of Canada Current Research Online no 2004 C2 written by Ross L. Sherlock and published by Natural Resources Canada. This book was released on 2004 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reports the results of a mapping program in the vicinity of the Boston gold deposit near Hope Bay, south-west Nunavut. It first reviews the regional geology, the granitoid rocks of the Hope Bay volcanic belt, and their contact relationships with the belt. It then focusses on the geology of the deposit area, with descriptions of the rock types, the geologic structures, and the gold mineralization. Finally, implications of the findings for mineralization in other areas of the Hope Bay belt are discussed.
Download or read book Geological Survey of Canada Current Research Online no 2005 D1 written by Denis Lavoie and published by Natural Resources Canada. This book was released on 2005 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents preliminary results from field observations on the Lower Silurian La Vieille Formation in north-east New Brunswick regarding the extent of early hydrothermal dolomitization, a critical element for assessing hydrocarbon potential. Six stratigraphic sections of the Formation were carefully examined for facies architecture and evidence of hydrothermal alteration of limestone facies. Features of interest included early fractures, brecciation & dissolution associated with early fractures, large-scale collapse of sections, fracture-filling cements, and synsedimentary tectonic instability. The findings provide critical information pertinent to the hydrocarbon reservoir potential of these rocks.
Download or read book Ulrich s Periodicals Directory written by and published by . This book was released on 1989 with total page 2618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eruptive History and Chemical Evolution of the Precaldera and Postcaldera Basalt dacite Sequences Long Valley California written by Roy A. Bailey and published by . This book was released on 2004 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Geology of Stratigraphic Sequences written by Andrew D. Miall and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sequence stratigraphy represents a new paradigm in geology. The principal hypothesis is that stratigraphie successions may be subdivided into discrete sequences bounded by widespread unconformities. There are two parts to this hypothesis. First, it suggests that the driving forces which generate sequences and their bounding unconformities also generate predietable three-dimensional stratigraphies. In re cent years stratigraphie research guided by sequence models has brought about fundamental im provements in our understanding of stratigraphie processes and the controls of basin architecture. Sequence models have provided a powerful framework for mapping and numerieal modeling, enabling the science of stratigraphy to advance with rapid strides. This research has demonstrated the importance of a wide range of processes for the generation of cyclie sequences, including eustasy, tectonics, and orbital forcing of climate change. The main objective of this book is to document the sequence record and to discuss our current state of knowledge about sequence-generating processes.
Download or read book Geological Survey of Canada Current Research Online no 2004 A3 written by Yvon Lemieux and published by Natural Resources Canada. This book was released on 2004 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents results of geological mapping conducted in 2003 as part of a project addressing the stratigraphic, structural, and metamorphic relationships along the Columbia River valley in British Columbia. The results relate to the stratigraphy of the Upper Arrow Lake & Trout Lake areas and the structural geology of the Columbia River fault zone. The significance of the stratigraphic succession found along Upper Arrow Lake is discussed in regard to previous theories concerning a crustal-scale displacement along the fault zone.
Download or read book Scientific Investigations Report written by Sharon E. Kroening and published by . This book was released on 2004 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Critical Mineral Resources of the United States written by K. J. Schulz and published by Geological Survey. This book was released on 2017 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the importance and dependence of specific mineral commodities increase, so does concern about their supply. The United States is currently 100 percent reliant on foreign sources for 20 mineral commodities and imports the majority of its supply of more than 50 mineral commodities. Mineral commodities that have important uses and face potential supply disruption are critical to American economic and national security. However, a mineral commodity's importance and the nature of its supply chain can change with time; a mineral commodity that may not have been considered critical 25 years ago may be critical today, and one considered critical today may not be so in the future. The U.S. Geological Survey has produced this volume to describe a select group of mineral commodities currently critical to our economy and security. For each mineral commodity covered, the authors provide a comprehensive look at (1) the commodity's use; (2) the geology and global distribution of the mineral deposit types that account for the present and possible future supply of the commodity; (3) the current status of production, reserves, and resources in the United States and globally; and (4) environmental considerations related to the commodity's production from different types of mineral deposits. The volume describes U.S. critical mineral resources in a global context, for no country can be self-sufficient for all its mineral commodity needs, and the United States will always rely on global mineral commodity supply chains. This volume provides the scientific understanding of critical mineral resources required for informed decisionmaking by those responsible for ensuring that the United States has a secure and sustainable supply of mineral commodities.
Download or read book United States Geological Survey Yearbook written by Geological Survey (U.S.) and published by . This book was released on 1990 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Uses of Heritage written by Laurajane Smith and published by Routledge. This book was released on 2006-11-22 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examining international case studies including USA, Asia, Australia and New Zealand, this book identifies and explores the use of heritage throughout the world. Challenging the idea that heritage value is self-evident, and that things must be preserved, it demonstrates how it gives tangibility to the values that underpin different communities.
Download or read book The Evolution of International Security Studies written by Barry Buzan and published by Cambridge University Press. This book was released on 2009-08-27 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: International Security Studies (ISS) has changed and diversified in many ways since 1945. This book provides the first intellectual history of the development of the subject in that period. It explains how ISS evolved from an initial concern with the strategic consequences of superpower rivalry and nuclear weapons, to its current diversity in which environmental, economic, human and other securities sit alongside military security, and in which approaches ranging from traditional Realist analysis to Feminism and Post-colonialism are in play. It sets out the driving forces that shaped debates in ISS, shows what makes ISS a single conversation across its diversity, and gives an authoritative account of debates on all the main topics within ISS. This is an unparalleled survey of the literature and institutions of ISS that will be an invaluable guide for all students and scholars of ISS, whether traditionalist, 'new agenda' or critical.
Download or read book Geological Survey of Canada Current Research Online no 2006 A8 written by David Huntley and published by Natural Resources Canada. This book was released on 2006 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Magnetotelluric Method written by Alan D. Chave and published by Cambridge University Press. This book was released on 2012-04-26 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: The magnetotelluric method is a technique for imaging the electrical conductivity and structure of the Earth, from the near surface down to the 410 km transition zone and beyond. This book forms the first comprehensive overview of magnetotellurics, from the salient physics and its mathematical representation to practical implementation in the field, data processing, modeling and geological interpretation. Electromagnetic induction in 1-D, 2-D and 3-D media is explored, building from first principles, and with thorough coverage of the practical techniques of time series processing, distortion, numerical modeling and inversion. The fundamental principles are illustrated with a series of case histories describing geological applications. Technical issues, instrumentation and field practices are described for both land and marine surveys. This book provides a rigorous introduction to magnetotellurics for academic researchers and advanced students, and will be of interest to industrial practitioners and geoscientists wanting to incorporate rock conductivity into their interpretations.
Download or read book Global Survey on Internet Privacy and Freedom of Expression written by Toby Mendel and published by UNESCO. This book was released on 2012-01-01 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This publication seeks to identify the relationship between freedom of expression and Internet privacy, assessing where they support or compete with each other in different circumstances. The book maps out the issues in the current regulatory landscape of Internet privacy from the viewpoint of freedom of expression. It provides an overview of legal protection, self-regulatory guidelines, normative challenges, and case studies relating to the topic. With this publication UNESCO aims to provide its Member States and other stakeholders, national and international, with a useful reference tool containing up-to-date and sharp information on emerging issues relevant to both developed and developing countries. Multiple stakeholders, preferably in dialogue, can use it in their own spheres of operation, adapting where appropriate from the range of experiences as recorded in these pages. The publication also supplies additional sources of reference for interested readers to use to further investigate each of the subjects highlighted. The publication explores a range of issues, such as: (1) threats to privacy that have developed through the Internet, (2) international legal standards on privacy and responses to these emerging issues, (3) complex intersections between the rights to privacy and freedom of expression, (4) UNESCO recommendations to states and corporations for better practice, (5) overview of literature, background material and tools on international and national policy and practice on privacy and freedom of expression on the Internet. In the coming years, UNESCO will specifically seek to disseminate information about good practices and international collaboration concerning the points of intersection between freedom of expression and privacy. Research on safeguarding the principle of freedom of expression in Internet policy across a range of issues will continue to be part of UNESCO's normative mandate and technical advice to stakeholders."--Publisher's description
Download or read book Operations Research written by Hamdy A. Taha and published by . This book was released on 1976 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Water Information System NWIS written by and published by . This book was released on 1998 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
