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Mcmaster An Allogenic Massive Sulphide Copper Deposit Bathurst Area New Brunswick
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Book Synopsis McMaster, an Allogenic Massive Sulphide Copper Deposit, Bathurst Area, New Brunswick by : J. L. Jambor
Download or read book McMaster, an Allogenic Massive Sulphide Copper Deposit, Bathurst Area, New Brunswick written by J. L. Jambor and published by Canada Centre for Mineral and Energy Technology. This book was released on 1983 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stress corrosion cracking can potentially cause fuel failures at circumferential ridges in the sheath. finite element computer codes elestres and feast are used to calculate two-dimensional, axisymmetric, elastic-plastic sheath stresses at and near the circumferential ridges. the level of stresses is given by the fuel design (such as pellet/sheath diameters, pellet length, pellet density) and by the operating conditions (such as power history). the accuracy, convergence, and cost of the stress calculations, however, are determined by the discretization used in the calculations: the number of nodes in the finite element mesh; the shape of the individual finite elements; the pattern into which the finite elements are arranged; and the size of the calculation-steps into which the power history is subdivided. in this study, we determined the discretization that gives a reasonable compromise of accuracy, convergence, and cost for the stress calculations. the highest accuracy is obtained by using triangular finite elements of aspect ratios close to one, and assembling them into hexagonal patterns. to caputure the stress gradients, five nodes are required across the sheath wall at the ridge, but two nodes are sufficient near the midplane of the pellet. the resulting mesh contains about 200 nodes and about 300 finite elements. calculation-steps of 6 kw/m provide a convergent solution, with a factor of two margin against numerical divergence. with the above arrangement, feast needs about 2.4 seconds on a cdc/cyber 175 computer to calculate sheath stresses per calculation-step. six radial nodes at the ridge would double the computing cost. decreasing the size of the calculation-steps means more calculations are needed to analyze a given power history, giving a linear increase in computing cost.
Book Synopsis Bibliography of New Brunswick Geoscience (1839 to 1994) by : D. M. Richard
Download or read book Bibliography of New Brunswick Geoscience (1839 to 1994) written by D. M. Richard and published by . This book was released on 1994 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CANMET Report by : Canada Centre for Mineral and Energy Technology
Download or read book CANMET Report written by Canada Centre for Mineral and Energy Technology and published by . This book was released on 1984 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadiana written by and published by . This book was released on 1984 with total page 1292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review of the Coprocessing of Coals and Heavy Oils of Petroleum Origin by : Canada Centre for Mineral and Energy Technology
Download or read book Review of the Coprocessing of Coals and Heavy Oils of Petroleum Origin written by Canada Centre for Mineral and Energy Technology and published by . This book was released on 1984 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Minerals, Metals and Mining Technologies by : Canada Centre for Mineral and Energy Technology
Download or read book Minerals, Metals and Mining Technologies written by Canada Centre for Mineral and Energy Technology and published by . This book was released on 1983 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Summaries of CANMET Minerals Research Contracts 1979-1983 by :
Download or read book Summaries of CANMET Minerals Research Contracts 1979-1983 written by and published by . This book was released on 1983 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stress corrosion cracking can potentially cause fuel failures at circumferential ridges in the sheath. finite element computer codes elestres and feast are used to calculate two-dimensional, axisymmetric, elastic-plastic sheath stresses at and near the circumferential ridges. the level of stresses is given by the fuel design (such as pellet/sheath diameters, pellet length, pellet density) and by the operating conditions (such as power history). the accuracy, convergence, and cost of the stress calculations, however, are determined by the discretization used in the calculations: the number of nodes in the finite element mesh; the shape of the individual finite elements; the pattern into which the finite elements are arranged; and the size of the calculation-steps into which the power history is subdivided. in this study, we determined the discretization that gives a reasonable compromise of accuracy, convergence, and cost for the stress calculations. the highest accuracy is obtained by using triangular finite elements of aspect ratios close to one, and assembling them into hexagonal patterns. to caputure the stress gradients, five nodes are required across the sheath wall at the ridge, but two nodes are sufficient near the midplane of the pellet. the resulting mesh contains about 200 nodes and about 300 finite elements. calculation-steps of 6 kw/m provide a convergent solution, with a factor of two margin against numerical divergence. with the above arrangement, feast needs about 2.4 seconds on a cdc/cyber 175 computer to calculate sheath stresses per calculation-step. six radial nodes at the ridge would double the computing cost. decreasing the size of the calculation-steps means more calculations are needed to analyze a given power history, giving a linear increase in computing cost.
Book Synopsis Bibliography and Index of Geology by :
Download or read book Bibliography and Index of Geology written by and published by . This book was released on 1985 with total page 1434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Canada Centre for Mineral and Energy Technology. Technology Information Division Publisher : ISBN 13 : Total Pages :154 pages Book Rating :4.:/5 (4 download)
Book Synopsis Catalogue Des Publications - Centre Canadien de la Technologie Des Minéraux Et de L'énergie by : Canada Centre for Mineral and Energy Technology. Technology Information Division
Download or read book Catalogue Des Publications - Centre Canadien de la Technologie Des Minéraux Et de L'énergie written by Canada Centre for Mineral and Energy Technology. Technology Information Division and published by . This book was released on 1982 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Index de Recherche Du Canada, Microlog by :
Download or read book Index de Recherche Du Canada, Microlog written by and published by . This book was released on 1983 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt: "An index and document delivery service for Canadian report literature".
Book Synopsis Skarns in British Columbia by : Gerald E. Ray
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 :Gerald E. Ray Publisher :Province of British Columbia, Ministry of Energy, Mines and Petroleum Resources ISBN 13 : Total Pages :116 pages Book Rating :4.F/5 ( download)
Book Synopsis The Geology and Mineralization of the Coquihalla Gold Belt and Hozameen Fault System, Southwestern British Columbia by : Gerald E. Ray
Download or read book The Geology and Mineralization of the Coquihalla Gold Belt and Hozameen Fault System, Southwestern British Columbia written by Gerald E. Ray and published by Province of British Columbia, Ministry of Energy, Mines and Petroleum Resources. This book was released on 1990 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Description of the geology, gold deposits and mineral occurrences adjacent to the Hozameen fault system and Coquihalla serpentine belt in southwestern B.C. The report gives a general geology of the area, the structural geology, and the economic geology by mine or gold occurrence. A short description of other mineral occurrences is also given.
Author :British Columbia. Geological Survey Branch Publisher :Province of British Columbia, Ministry of Energy, Mines and Petroleum Resources ISBN 13 : Total Pages :158 pages Book Rating :4.F/5 ( download)
Book Synopsis Carbonatites, Nepheline Syenites, Kimberlites and Related Rocks in British Columbia by : British Columbia. Geological Survey Branch
Download or read book Carbonatites, Nepheline Syenites, Kimberlites and Related Rocks in British Columbia written by British Columbia. Geological Survey Branch and published by Province of British Columbia, Ministry of Energy, Mines and Petroleum Resources. This book was released on 1994 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study documents alkaline rock occurrences in British Columbia; describes their petrography, geochemistry, economic geology, and field relationships; and determines the timing and tectonic controls of emplacement, providing a basis for future, detailed studies. Work was begun in 1984 and included field mapping during the summers of 1984, 1985, and 1986. All the carbonatite-syenite localities (with the exception of the Wicheeda Lake and Mount Bisson showings) and a large number of the diatreme breccias were mapped and sampled.
Book Synopsis Studies of Rare-metal Deposits in the Northwest Territories by : Geological Survey of Canada
Download or read book Studies of Rare-metal Deposits in the Northwest Territories written by Geological Survey of Canada and published by . This book was released on 1994 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains four papers that report on a wide range of geoscientific activities related to various rare-metal deposits in the Northwest Territories. Two papers represent the results of work carried out on the Blatchford Lake intrusive suite and the associated Thor Lake rare-metal deposits of niobium, tantalum, beryllium, yttrium, rare-earth elements, and gallium. A detailed gravity survey and computer modelling provides an understanding of the three dimensional geometry of the 23 km wide Blatchford Lake. Another paper summarizes some of the extensive pegmatite research done by the University of Manitoba in the Northwest Territories during the 1980s, providing information on the geological setting, geochemistry, and economic potential of four previously undocumented or poorly known rare-element pegmatite occurrences at Ayler Lake, Torp Lake, Chantry Inlet, and the Foxe fields in the Rae Province. Another paper presents a thorough documentation of the geological settings, characteristics, and metallogeny of selected mineral occurrences in the southern part of the Proterozoic Great Bear magnetic zone.
Book Synopsis Geological Survey Research, 1964 by : Geological Survey (U.S.)
Download or read book Geological Survey Research, 1964 written by Geological Survey (U.S.) and published by . This book was released on 1964 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radioactive Mineral Deposits of the Pembroke-Renfrew Area by : S. L. Masson
Download or read book Radioactive Mineral Deposits of the Pembroke-Renfrew Area written by S. L. Masson and published by Ontario Ministry of Natural Resources. This book was released on 1981 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rocks and Minerals for the Collector by : Ann P. Sabina
Download or read book Rocks and Minerals for the Collector written by Ann P. Sabina and published by Geological Survey. This book was released on 2007 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
