Extech Iv

EXTECH-IV is a multidisciplinary study designed to improve the geoscience framework and develop exploration technology for unconformity-type uranium deposits of the Athabasca Basin. This paper reports on the seismic reflection & auxiliary downhole seismic surveys conducted within the McArthur River mining camp, Saskatchewan, as part of the study. It describes the acquisition of the seismic data sets, the objectives of each of the surveys, and some preliminary results for the two-dimensional high-resolution survey and the high-frequency vertical seismic profile.

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)!

Uranium Deposits of the World, in four volumes, comprises an unprecedented compilation of data and overviews of the key uranium regions throughout the globe. It offers not only a complete uranium-resource reference based on the latest research but also access to previously unavailable data. Each country and region receives an analytical overview followed by the detailed geologically- and economically-relevant synopsis of the individual regions and fields, including: location and magnitude of uranium districts and deposits; principal features of uranium districts; and characteristics of selected deposits. The description of districts and deposits includes sections on geology, alteration, mineralogy, shape and dimensions, ore controls or recognition criteria, and metallogenetic aspects. A typological classification of uranium deposits is added to give an overview of principal criteria of deposit types and related nomenclature. The set also provides readers access to the voluminous literature via the comprehensive bibliography of uranium-related publications. Abundantly illustrated with information-laden maps and charts throughout, this reference work is an indispensable tool for geologists, mining companies, government agencies, and others with interest in key natural resources. The four volumes of Uranium Deposits of the World, available as set, cover the world’s populated continents: Asia; Europe; Australia, Oceania, and Africa; and USA, and Latin America.