Field-based Feasibility Study of Teleseismic Surveys at High Northern Latitudes, Northwest Territories and Nunavut

Field-based Feasibility Study of Teleseismic Surveys at High Northern Latitudes, Northwest Territories and Nunavut
Author :
Publisher : Natural Resources Canada
Total Pages : 12
Release :
ISBN-10 : 9780660187235
ISBN-13 : 066018723X
Rating : 4/5 (35 Downloads)

Synopsis Field-based Feasibility Study of Teleseismic Surveys at High Northern Latitudes, Northwest Territories and Nunavut by : David Snyder

Self-contained seismic stations have been established & operated in remote areas of the Canadian north in order to assess their performance throughout the year. This paper reports on the deployment of eight such stations between September 1999 and September 2001. Three of the station sites were located in central Baffin Island and the remainder among the diamond exploration camps of the Slave Province north of Yellowknife. The paper includes a description of the equipment used, some logistics of the deployments, statistics about the recording of earthquake data, and examples of the data recorded & its preliminary analysis.

8th International Kimberlite Conference: The J. Barry Hawthorne volume

8th International Kimberlite Conference: The J. Barry Hawthorne volume
Author :
Publisher : Gulf Professional Publishing
Total Pages : 982
Release :
ISBN-10 : 0444517774
ISBN-13 : 9780444517777
Rating : 4/5 (74 Downloads)

Synopsis 8th International Kimberlite Conference: The J. Barry Hawthorne volume by : Roger H. Mitchell

Volume 2, dedicated to Barry Hawthorne, presents papers concerned with the genesis of eclogites, the mineralogy of diamond and its inclusions, exploration methods for kimberlite, the geochemistry of the upper mantle and the character of cratons.

A Tale of Two Cratons

A Tale of Two Cratons
Author :
Publisher : Gulf Professional Publishing
Total Pages : 522
Release :
ISBN-10 : 044451614X
ISBN-13 : 9780444516145
Rating : 4/5 (4X Downloads)

Synopsis A Tale of Two Cratons by : A. G. Jones

Given the established nature of geoscientific knowledge of the Kaapvaal craton compared to the Slave craton, and given the exciting new interdisciplinary results coming from the Kaapvaal Project and from Slave craton studies, scientists working on both cratons were brought together in a workshop to compare and contrast the nature of these two cratons. Of the 54 papers presented at the workshop, 24 are included in this volume. There are clearly major similarities and differences between these two Archean cratons. The crust of both was predominantly formed in the Mesoarchean. Both contain crustal sections consisting of terranes of different ages welded together by Archean accretionary events. Both crustal sections are underlain by lithospheric mantle sections consisting of peridotites that experienced extensive partial melt extraction between 2.9 Ga and 3.2 Ga, but this is where the similarities between the cratons end. One of the most striking differences between the Slave and Kaapvaal cartons is the apparent seismic homogeneity of the Kaapvaal craton's SCLM whereas the Slave craton is seismically layered. The seismic layering in the centre of the craton correlates laterally and with depth with electrical layering and geochemical layering. Taken together, these differences suggest that SCLM formation was different for the two cratons, implying that the search for a single causative formation process is bound to fail. Reprinted from the journal Lithos Volume 71, numbers 2-4.

The Mackenzie River Basin

The Mackenzie River Basin
Author :
Publisher : T. Mulvey
Total Pages : 172
Release :
ISBN-10 : UIUC:30112110789887
ISBN-13 :
Rating : 4/5 (87 Downloads)

Synopsis The Mackenzie River Basin by : Charles Camsell

The Polish Climate in the European Context: An Historical Overview

The Polish Climate in the European Context: An Historical Overview
Author :
Publisher : Springer Science & Business Media
Total Pages : 539
Release :
ISBN-10 : 9789048131679
ISBN-13 : 9048131677
Rating : 4/5 (79 Downloads)

Synopsis The Polish Climate in the European Context: An Historical Overview by : Rajmund Przybylak

Reconstruction of the climate variability of the past 500 years is a topic of great scientific interest not only in global terms, but also at regional and local levels. This period is interesting on account of the increasing influence of anthropogenic forcing and its overlap with natural factors. The Polish Climate in the European Context: An Historical Overview summarises the results of research into climate variability based on a combination of instrumental, documentary, dendrochronological and borehole data from Poland. The first part of the book provides a Central European perspective of research in these fields, which forms the general background for a presentation of the state of the art of climatic change studies in Poland during the past 500 years (Part 2). This is followed by a selection of papers dealing mainly with different aspects of climate variability in Poland and Central Europe (Part 3). "This book is a valuable tool integrating Polish, Central and Eastern European climate research into the global context. It is, as such, a must for climate researchers worldwide." (Gaston Demarée, Royal Meteorological Institute of Belgium) "This volume marks a significant step forward in our understanding of European climatic history." (Christian Pfister, University of Bern)

Seismic Diffraction

Seismic Diffraction
Author :
Publisher : SEG Books
Total Pages : 823
Release :
ISBN-10 : 9781560803171
ISBN-13 : 1560803177
Rating : 4/5 (71 Downloads)

Synopsis Seismic Diffraction by : Tijmen Jan Moser

The use of diffraction imaging to complement the seismic reflection method is rapidly gaining momentum in the oil and gas industry. As the industry moves toward exploiting smaller and more complex conventional reservoirs and extensive new unconventional resource plays, the application of the seismic diffraction method to image sub-wavelength features such as small-scale faults, fractures and stratigraphic pinchouts is expected to increase dramatically over the next few years. “Seismic Diffraction” covers seismic diffraction theory, modeling, observation, and imaging. Papers and discussion include an overview of seismic diffractions, including classic papers which introduced the potential of diffraction phenomena in seismic processing; papers on the forward modeling of seismic diffractions, with an emphasis on the theoretical principles; papers which describe techniques for diffraction mathematical modeling as well as laboratory experiments for the physical modeling of diffractions; key papers dealing with the observation of seismic diffractions, in near-surface-, reservoir-, as well as crustal studies; and key papers on diffraction imaging.

3C Seismic and VSP: Converted waves and vector wavefield applications

3C Seismic and VSP: Converted waves and vector wavefield applications
Author :
Publisher : SEG Books
Total Pages : 637
Release :
ISBN-10 : 9781560803355
ISBN-13 : 1560803355
Rating : 4/5 (55 Downloads)

Synopsis 3C Seismic and VSP: Converted waves and vector wavefield applications by : James Gaiser

3C seismic applications provide enhanced rock property characterization of the reservoir that can complement P-wave methods. Continued interest in converted P- to S-waves (PS-waves) and vertical seismic profiles (VSPs) has resulted in the steady development of advanced vector wavefield techniques. PS-wave images along with VSP data can be used to help P-wave interpretation of structure in gas obscured zones, of elastic and fluid properties for lithology discrimination from S-wave impedance and density inversion in unconventional reservoirs, and of fracture characterization and stress monitoring from S-wave birefringence (splitting) analysis. The book, which accompanies the 2016 SEG Distinguished Instructor Short Course, presents an overview of 3C seismic theory and practical application: from fundamentals of PS-waves and VSPs, through to acquisition and processing including interpretation techniques. The emphasis is on unique aspects of vector wavefields, anisotropy, and the important relationships that unify S-waves and P-waves. Various applications and case studies demonstrate image benefits from PS-waves, elastic properties and fluid discrimination from joint inversion of amplitude variations with offset/angle (AVO/A), and VSP methods for anisotropic velocity model building and improved reservoir imaging. The book will be of interest to geophysicists, geologists, and engineers, especially those involved with or considering the use of AVO/A inversion, fracture/stress characterization analyses, or interpretation in gas-obscured reservoirs.

Countering Cyber Sabotage

Countering Cyber Sabotage
Author :
Publisher : CRC Press
Total Pages : 232
Release :
ISBN-10 : 9781000292978
ISBN-13 : 1000292975
Rating : 4/5 (78 Downloads)

Synopsis Countering Cyber Sabotage by : Andrew A. Bochman

Countering Cyber Sabotage: Introducing Consequence-Driven, Cyber-Informed Engineering (CCE) introduces a new methodology to help critical infrastructure owners, operators and their security practitioners make demonstrable improvements in securing their most important functions and processes. Current best practice approaches to cyber defense struggle to stop targeted attackers from creating potentially catastrophic results. From a national security perspective, it is not just the damage to the military, the economy, or essential critical infrastructure companies that is a concern. It is the cumulative, downstream effects from potential regional blackouts, military mission kills, transportation stoppages, water delivery or treatment issues, and so on. CCE is a validation that engineering first principles can be applied to the most important cybersecurity challenges and in so doing, protect organizations in ways current approaches do not. The most pressing threat is cyber-enabled sabotage, and CCE begins with the assumption that well-resourced, adaptive adversaries are already in and have been for some time, undetected and perhaps undetectable. Chapter 1 recaps the current and near-future states of digital technologies in critical infrastructure and the implications of our near-total dependence on them. Chapters 2 and 3 describe the origins of the methodology and set the stage for the more in-depth examination that follows. Chapter 4 describes how to prepare for an engagement, and chapters 5-8 address each of the four phases. The CCE phase chapters take the reader on a more granular walkthrough of the methodology with examples from the field, phase objectives, and the steps to take in each phase. Concluding chapter 9 covers training options and looks towards a future where these concepts are scaled more broadly.

Mind Over Magma

Mind Over Magma
Author :
Publisher : Princeton University Press
Total Pages : 718
Release :
ISBN-10 : 0691102791
ISBN-13 : 9780691102795
Rating : 4/5 (91 Downloads)

Synopsis Mind Over Magma by : Davis A. Young

Annotation This book fulfills the lack of a modern analysis of the history of igneous petrology and will be a significant contribution. The author is a well-known igneous petrologist who appreciates the extent to which many geological questions are still awaiting definitive answers.

Antarctic Subglacial Aquatic Environments

Antarctic Subglacial Aquatic Environments
Author :
Publisher : American Geophysical Union
Total Pages : 0
Release :
ISBN-10 : 0875904823
ISBN-13 : 9780875904825
Rating : 4/5 (23 Downloads)

Synopsis Antarctic Subglacial Aquatic Environments by : Martin J. Siegert

Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 192. Antarctic Subglacial Aquatic Environments is the first volume on this important and fascinating subject. With its underlying theme of bridging existing knowledge to future research, it is a benchmark in the history of subglacial lake exploration and study, containing up-to-date discussions about the history and background of subglacial aquatic environments and future exploration. The main topics addressed are identification, location, physiography, and hydrology of 387 subglacial lakes; protocols for environmental stewardship and protection of subglacial lake environments; details of three programs aiming to explore Vostok Subglacial Lake, Ellsworth Subglacial Lake, and Whillans Subglacial Lake over the next 3–5 years; assessment of technological requirements for exploration programs based on best practices for environmental stewardship and scientific success; and knowledge of subglacial lakes as habitats for microbial life and as recorders of past climate and ice sheet change. Its uniqueness, breadth, and inclusiveness will appeal to microbiologists and those interested in life in extreme environments, paleoclimatologists and those interested in sedimentary records of past changes, glaciologists striving to understand how water beneath glaciers affects their flow, and those engaged in developing technology to undertake direct measurement and sampling of extreme environments on Earth and in the solar system.