Download or read book Geological Survey of Canada Current Research Online no 2000 C12 written by Lawrence B. Aspler and published by Natural Resources Canada. This book was released on 2000 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents results of geologic fieldwork that updates mapping in the Sealhole-Fitzpatrick lakes area west of Hudson Bay, Nunavut, with a focus on the paleogeographic and structural evolution of the Henik, Montgomery, and Hurwitz groups. Along with descriptions of the Archean to Paleoproterozoic rocks and their stratigraphic relationships, the report discusses the area's geologic structure and the evidence for Archean and Paleoproterozoic deformation.
Download or read book Geological Survey of Canada Current Research Online no 2002 F5 written by and published by Natural Resources Canada. This book was released on 2002 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey of Canada Current Research Online no 2008 2 written by and published by Natural Resources Canada. This book was released on with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey of Canada Current Research Online no 2003 C4 written by and published by Natural Resources Canada. This book was released on with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey of Canada Current Research Online no 2002 C10 written by Carl A. Ozyer and published by Natural Resources Canada. This book was released on 2002 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ice movement indicators have been carefully documented in the Arrowsmith River area of central mainland Nunavut, and this paper presents preliminary results of this research. It begins with background on the regional geological setting and on the field sampling methods used. Ice movement indicators & associated glacial landforms are then described, including striae, eskers, meltwater channels, moraine systems, and raised shorelines.
Download or read book Geological Survey of Canada Current Research Online no 2002 C14 written by Trevor G. MacHattie and published by Natural Resources Canada. This book was released on 2002 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Komatiite units dominate Archean volcanic successions in the Laughland Lake and Walker Lake map areas of the Committee Bay region, central Nunavut. This study describes results of regional & local mapping of some well-preserved komatiite sequences in those areas, particularly in the Laughland Lake area where the majority of the better-preserved komatiite units are found. Structural & stratigraphic relationships are also discussed.
Download or read book Geological Survey of Canada Current Research Online no 2006 C1 written by Carl A. Ozyer and published by Natural Resources Canada. This book was released on 2006 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey of Canada Current Research Online no 2000 A5 written by Martin De Keijzer and published by Natural Resources Canada. This book was released on 2000 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: A well-exposed section about 250 metres wide below the high water line of the Jennings River, Teslin Lake map area in northern British Columbia shows part of the Teslin Fault and provides an opportunity to constrain the fault's kinematic history by direct ground observations. This report describes preliminary structural observations of this section of the Teslin Fault, including the rock types involved, mylonitic & ultramylonitic structures, and deformation. Indications of two main episodes of shearing are discussed.
Download or read book Geological Survey of Canada Current Research Online no 2000 A10 written by L. C. Struik and published by Natural Resources Canada. This book was released on 2000 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The final year of the Nechako NATMAP project to study the geology of central British Columbia was used to research information collected in the field & laboratory, and to compile & document the study results. This article includes a review of upcoming publications & other products, by type of product: maps, journal articles, conference presentations, and computer products, as well as ongoing research on petrology, palaeontology, terrane characterization, tectonics & structure, and Quaternary geology.
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 Surface Temperature Reconstructions for the Last 2 000 Years written by National Research Council and published by National Academies Press. This book was released on 2007-01-05 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: In response to a request from Congress, Surface Temperature Reconstructions for the Last 2,000 Years assesses the state of scientific efforts to reconstruct surface temperature records for Earth during approximately the last 2,000 years and the implications of these efforts for our understanding of global climate change. Because widespread, reliable temperature records are available only for the last 150 years, scientists estimate temperatures in the more distant past by analyzing "proxy evidence," which includes tree rings, corals, ocean and lake sediments, cave deposits, ice cores, boreholes, and glaciers. Starting in the late 1990s, scientists began using sophisticated methods to combine proxy evidence from many different locations in an effort to estimate surface temperature changes during the last few hundred to few thousand years. This book is an important resource in helping to understand the intricacies of global climate change.
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 Karst Aquifers Characterization and Engineering written by Zoran Stevanović and published by Springer. This book was released on 2015-02-25 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical training guidebook makes an important contribution to karst hydrogeology. It presents supporting material for academic courses worldwide that include this and similar topics. It is an excellent sourcebook for students and other attendees of the International Karst School: Characterization and Engineering of Karst Aquifers, which opened in Trebinje, Bosnia & Herzegovina in 2014 and which will be organized every year in early summer. As opposed to more theoretical works, this is a catalog of possible engineering interventions in karst and their implications. Although the majority of readers will be professionals with geology/hydrogeology backgrounds, the language is not purely technical making it accessible to a wider audience. This means that the methodology, case studies and experiences presented will also benefit water managers working in karst environments.
Download or read book Geological Survey of Canada Current Research Online no 2000 A11 written by C. D. Pint and published by Natural Resources Canada. This book was released on 2000 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes a geologic mapping project in the area of the Nechako reservoir in central interior British Columbia. Includes description of regional geology, stratigraphic units, volcanic & plutonic rocks, and geologic structure. Evidence for two periods of deformation of Hazelton Group rocks in the study area is discussed.
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 Everglades Handbook written by Thomas E. Lodge and published by CRC Press. This book was released on 2016-11-03 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fourth edition presents expanded treatment of subjects where our knowledge of the Everglades and its restoration has greatly improved. This more detailed coverage includes: Computer modeling and its applications to the Everglades environment Quantified role of water flow in shaping the Everglades landscape The origin and evolution of fixed tree islands Sulfur and related mercury as wetland pollutants Up-to-date summary of the now quantified economic benefits of restoration, shown to be far in excess of the cost The Everglades Handbook: Understanding the Ecosystem, Fourth Edition is a scholarly reference packed cover to cover with scientific information about the ecosystem of the Everglades - taking into account how drastically the Everglades has changed. Topically, the book covers disciplines ranging from ecology, geology, climatology, hydrology, anthropology to conservation biology. Written in Tom Lodge’s trademark accessible style, this extensively researched text is essential reading for anybody trying to understand the challenges we face in restoring this unique ecosystem.
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:
