Download or read book Geological Survey of Canada Current Research Online no 2000 B2 written by Réjean Couture 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: "Regional studies show that permafrost will disappear partly or completely over large areas of the north ... The Geological Survey of Canada is initiating an assessment of infrastructure needs in ... Mackenzie valley."--Page 1

Download or read book Geological Survey of Canada Current Research Online no 2000 C14 written by C. Sasseville 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: Presents results of 1999 field studies focusing on the structure & stratigraphy within the Wallace Lake greenstone belt of east central Manitoba. The stratigraphic results involve redefinition of some of the sequences previously described in the belt and the introduction of new stratigraphic nomenclature. The nature of the contact between stratigraphic assemblages, and the internal stratigraphy of these assemblages, is then presented. This is followed by a discussion of the stratigraphic position of various komatiitic units found in the belt. The final sections describe the geochemistry of the volcanic rocks and the structural history of the greenstone belt.

Download or read book Geological Survey of Canada Current Research Online no 2004 B2 written by Elizabeth C. Turner and published by Natural Resources Canada. This book was released on 2004 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper addresses previous interpretations of the origin of planar laminae and breccia networks found in carbonate rocks of the Society Cliffs Formation, which hosts numerous base metal showings and the Nanisivik zinc-lead deposit on northern Baffin Island. Field observations concerning the sedimentology of the Society Cliffs basinal laminite and the types of breccia found in laminite are presented and a new interpretation of the origin of these rocks is offered. Implications of the findings for oceanic chemistry & base metal mineralization are briefly discussed.

Download or read book Geological Survey of Canada Current Research Online no 2002 B2 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 2000 D3 written by O. Salad Hersi 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: Cores drilled from a quarry north of Montreal show a distinct lithostratigraphic unit occurring below the Upper Cambrian Cairnside Formation. The unit was previously considered as the Covey Hill Formation of the Lower Potsdam Group. This paper describes the regional geological setting, lithology, and depositional environment of this unit. Evidence for considering the unit as part of the Rivière Aux Outardes Member (Clark, 1966) is presented. Correlations with other stratigraphic units in southern Quebec are discussed along with evidence for a possible Cambrian carbonate platform in the region. Two scenarios of possible regional depositional episodes are also hypothesized.

Download or read book Geological Survey of Canada Current Research Online no 2004 B3 written by Elizabeth C. Turner 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: The Milne Inlet Graben on northern Baffin Island contains unmetamorphosed sedimentary & volcanic rocks. The middle part of the Graben includes the Society Cliffs Formation, which hosts numerous base metal showings and the Nanisivik lead-zinc deposit. Known mineralization in the Graben is predominantly limited to distinct lithofacies & stratigraphic levels of that formation. Understanding the formation's composition, origin, and lateral facies relations may be critical to determining constraints on mineralization. Existing stratigraphic nomenclature for the Formation, based on a type section in the north-west part of the Graben, does not adequately characterize the lateral variations in facies from the north-west to south-east and does not account for the Formation's evolution over time. This paper critically reviews previous research on the Formation, which has focussed on the south-east part of the Graben, and fills in the gaps in knowledge about the Formation's sedimentology & stratigraphy. It describes the distribution & lateral relations of the various lithofacies and interprets the characteristics of the basins in which they were originally deposited.

Download or read book Geological Survey of Canada Current Research Online no 2008 4 written by and published by Natural Resources Canada. This book was released on with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Discharge measurements at gaging stations written by D. Phil Turnipseed and published by . This book was released on 2010 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 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 Measuring Discharge with Acoustic Doppler Current Profilers from a Moving Boat written by David S. Mueller and published by CreateSpace. This book was released on 2014-06-16 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mission of the U.S. Geological Survey (USGS) Water Resources Discipline is to provide the information and understanding needed for wise management of the Nation's water resources. Inherent in this mission is the responsibility of collecting data that accurately describe the physical, chemical, and biological attributes of water systems. These data are used for environmental and resource assessments by the USGS, other government agencies and scientific organizations, and the general public. Reliable and quality-assured data are essential to the credibility and impartiality of the water-resources appraisals carried out by the USGS.

Download or read book Geology of the San Francisco Bay Region written by Doris Sloan and published by Univ of California Press. This book was released on 2006-06-27 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: "You can't really know the place where you live until you know the shapes and origins of the land around you. To feel truly at home in the Bay Area, read Doris Sloan's intriguing stories of this region's spectacular, quirky landscapes."—Hal Gilliam, author of Weather of the San Francisco Bay Region "This is a fascinating look at some of the world's most complex and engaging geology. I highly recommend this book to anyone interested in an understanding of the beautiful landscape and dynamic geology of the Bay Area."—Mel Erskine, geological consultant "This accessible summary of San Francisco Bay Area geology is particularly timely. We are living in an age where we must deal with our impact on our environment and the impact of the environment on us. Earthquake hazards, and to a lesser extent landslide hazards, are well known, but the public also needs to be aware of other important engineering and environmental impacts and geologic resources. This book will allow Bay Area residents to make more intelligent decisions about the geological issues affecting their lives."—John Wakabayashi, geological consultant

Download or read book The United States Geological Survey in Alaska Accomplishments During written by and published by . This book was released on 1980 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Linkages and Feedbacks in Orogenic Systems written by Richard D. Law and published by Geological Society of America. This book was released on 2017-09-11 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dedicated to Bob Hatcher, this Memoir explores linkages between tectonic processes through a series of field-, numerical- and laboratory-based studies, concentrating on feedback mechanisms within ancient and evolving orogens by which individual or linked tectonic processes may influence or predetermine the operation of other processes in space and time. Case studies cover a wide range of ancient to modern orogens: the Svecofennian of southern Finland, the Gyeonggi Massif of Korea, the Caledonides of northern Scotland, the Variscan of the East European craton, the Appalachians of the eastern United States, the European Alps and Dinarides, north Cascades of the northwestern United States, and the Himalaya. Emphasis is placed on integration between data sets developed from a wide range of analytical approaches, including: field mapping, seismic reflection profiling, strain analyses, petrology, isotopic dating, and numerical modeling-based studies of thermal evolution associated with tectonic processes such as thrust-related burial and exhumation.

Download or read book Geologic Field trip Guide to the Volcanic and Hydrothermal Landscape of the Yellowstone Plateau written by Lisa A. Morgan and published by Government Printing Office. This book was released on 2017 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Mathematical Geosciences written by B.S. Daya Sagar and published by Springer. This book was released on 2018-06-25 with total page 911 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Open Access handbook published at the IAMG's 50th anniversary, presents a compilation of invited path-breaking research contributions by award-winning geoscientists who have been instrumental in shaping the IAMG. It contains 45 chapters that are categorized broadly into five parts (i) theory, (ii) general applications, (iii) exploration and resource estimation, (iv) reviews, and (v) reminiscences covering related topics like mathematical geosciences, mathematical morphology, geostatistics, fractals and multifractals, spatial statistics, multipoint geostatistics, compositional data analysis, informatics, geocomputation, numerical methods, and chaos theory in the geosciences.