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Mineral Potential Of Proterozoic Keweenawan Intrusions
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Book Synopsis Mineral Potential of Proterozoic Keweenawan Intrusions by : Peter Charles Lightfoot
Download or read book Mineral Potential of Proterozoic Keweenawan Intrusions written by Peter Charles Lightfoot and published by . This book was released on 1999 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Keweenawan lavas of the Lake Superior area, along with their associated mafic intrusions, are the igneous expression of the North American mid-continent gravity high, which is interpreted to be an aborted continental rift. This publication reports major- and trace-element data for stratigraphic sequences of lavas from the six-kilometre thick Mamainse Point Volcanic Group (eastern Lake Superior) and the three-kilometre thick Osler Volcanic Group exposed on the Black Bay Peninsula (northern Lake Superior). The study was designed to determine whether any similarities exist between the rocks of the Keweenawan Midcontinent Rift and the Siberian Trap at Noril'sk, where intrusions host gigantic nickel-copper deposits. The comparison examines volcanic rocks proximal to a proposed mantle plume (Osler Group) and those distal to the proposed plume (Mamainse Group). Evidence is documented for crustal contamination and limited chalcophile element depletion in the Keweenawan lavas, and these chemical signatures are compared to those of the Permotriassic Siberian Trap lavas. The mineral potential implications of the similarities are discussed.
Book Synopsis Potential Theory in Gravity and Magnetic Applications by : Richard J. Blakely
Download or read book Potential Theory in Gravity and Magnetic Applications written by Richard J. Blakely and published by Cambridge University Press. This book was released on 1996-09-13 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text bridges the gap between the classic texts on potential theory and modern books on applied geophysics. It opens with an introduction to potential theory, emphasising those aspects particularly important to earth scientists, such as Laplace's equation, Newtonian potential, magnetic and electrostatic fields, and conduction of heat. The theory is then applied to the interpretation of gravity and magnetic anomalies, drawing on examples from modern geophysical literature. Topics explored include regional and global fields, forward modeling, inverse methods, depth-to-source estimation, ideal bodies, analytical continuation, and spectral analysis. The book includes numerous exercises and a variety of computer subroutines written in FORTRAN. Graduate students and researchers in geophysics will find this book essential.
Download or read book Field Trip Guidebooks written by and published by . This book was released on 2009 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis USGS Research on Mineral Resources--1985 by : Kathleen Krafft
Download or read book USGS Research on Mineral Resources--1985 written by Kathleen Krafft and published by . This book was released on 1985 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Geological Survey Circular by :
Download or read book U.S. Geological Survey Circular written by and published by . This book was released on 1984 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geology, Hydrology and Mineral Resources of Crystalline Rock Areas of the Lake Superior Region, United States by :
Download or read book Geology, Hydrology and Mineral Resources of Crystalline Rock Areas of the Lake Superior Region, United States written by and published by . This book was released on 1983 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exploration and Mining Geology written by and published by . This book was released on 1993 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 1984 Annual Report on Alaska's Mineral Resources by :
Download or read book 1984 Annual Report on Alaska's Mineral Resources written by and published by . This book was released on 1984 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: Short papers describing results of recent geologic investigations.
Book Synopsis Archean to Anthropocene by : James D. Miller
Download or read book Archean to Anthropocene written by James D. Miller and published by Geological Society of America. This book was released on 2011-01-01 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Layered Intrusions by : Bernard Charlier
Download or read book Layered Intrusions written by Bernard Charlier and published by Springer. This book was released on 2015-05-18 with total page 749 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited work contains the most recent advances related to the study of layered intrusions and cumulate rocks formation. The first part of this book presents reviews and new views of processes producing the textural, mineralogical and geochemical characteristics of layered igneous rocks. The second part summarizes progress in the study of selected layered intrusions and their ore deposits from different parts of the world including Canada, Southwest China, Greenland and South Africa. Thirty experts have contributed to this update on recent research on Layered Intrusions. This highly informative book will provide insight for researchers with an interest in geology, igneous petrology, geochemistry and mineral resources.
Book Synopsis Contributions to Mineral Resources Research, 1984 by : Alfred Lerner Bush
Download or read book Contributions to Mineral Resources Research, 1984 written by Alfred Lerner Bush and published by . This book was released on 1987 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1992 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Canadian Journal of Earth Sciences by :
Download or read book Canadian Journal of Earth Sciences written by and published by . This book was released on 2015 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Publications of the Geological Survey by : Geological Survey (U.S.)
Download or read book New Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1991 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Supercontinent Cycles Through Earth History by : Z.X. Li
Download or read book Supercontinent Cycles Through Earth History written by Z.X. Li and published by Geological Society of London. This book was released on 2016-05-20 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: The supercontinent-cycle hypothesis attributes planetary-scale episodic tectonic events to an intrinsic self-organizing mode of mantle convection, governed by the buoyancy of continental lithosphere that resists subduction during the closure of old ocean basins, and the consequent reorganization of mantle convection cells leading to the opening of new ocean basins. Characteristic timescales of the cycle are typically 500 to 700 million years. Proposed spatial patterns of cyclicity range from hemispheric (introversion) to antipodal (extroversion), to precisely between those end members (orthoversion). Advances in our understanding can arise from theoretical or numerical modelling, primary data acquisition relevant to continental reconstructions, and spatiotemporal correlations between plate kinematics, geodynamic events and palaeoenvironmental history. The palaeogeographic record of supercontinental tectonics on Earth is still under development. The contributions in this Special Publication provide snapshots in time of these investigations and indicate that Earth’s palaeogeographic record incorporates elements of all three end-member spatial patterns.
Book Synopsis Director's Report by : Wisconsin Geological and Natural History Survey
Download or read book Director's Report written by Wisconsin Geological and Natural History Survey and published by . This book was released on 1985 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Publications of the U.S. Geological Survey by :
Download or read book New Publications of the U.S. Geological Survey written by and published by . This book was released on 1995 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
