Download or read book Proceedings written by and published by . This book was released on 1976 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Geological Survey Circular written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of a U S Geological Survey Workshop on Environmental Geochemistry written by Bruce R. Doe and published by . This book was released on 1990 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of Exploration 87 written by Ontario. Mines and Minerals Division and published by . This book was released on 1989 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Publications of the U S Geological Survey written by and published by . This book was released on 2000 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geochemical Exploration 1974 written by I.L. Elliott and published by Elsevier. This book was released on 1975-01-01 with total page 727 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geochemical Exploration 1974

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book written by 国立国会図書館 (Japan) and published by . This book was released on 1972 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

Download or read book 17th International Geochemical Exploration Symposium Exploring the Tropics written by Kaylene S. Camuti and published by Economic Geology Research Unit James Cook University. This book was released on 1995 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geochemical Landscapes of the Conterminous United States written by N. Gustavsson and published by . This book was released on 2001 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USGS Research on Mineral Resources 1989 written by Geological Survey (U.S.) and published by . This book was released on 1988 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: See journals under US Geological survey. Circular 1035.

Download or read book Understanding High Dimensional Spaces written by David B. Skillicorn and published by Springer Science & Business Media. This book was released on 2012-09-24 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-dimensional spaces arise as a way of modelling datasets with many attributes. Such a dataset can be directly represented in a space spanned by its attributes, with each record represented as a point in the space with its position depending on its attribute values. Such spaces are not easy to work with because of their high dimensionality: our intuition about space is not reliable, and measures such as distance do not provide as clear information as we might expect. There are three main areas where complex high dimensionality and large datasets arise naturally: data collected by online retailers, preference sites, and social media sites, and customer relationship databases, where there are large but sparse records available for each individual; data derived from text and speech, where the attributes are words and so the corresponding datasets are wide, and sparse; and data collected for security, defense, law enforcement, and intelligence purposes, where the datasets are large and wide. Such datasets are usually understood either by finding the set of clusters they contain or by looking for the outliers, but these strategies conceal subtleties that are often ignored. In this book the author suggests new ways of thinking about high-dimensional spaces using two models: a skeleton that relates the clusters to one another; and boundaries in the empty space between clusters that provide new perspectives on outliers and on outlying regions. The book will be of value to practitioners, graduate students and researchers.

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 Geochemical Sampling in Arid Environments by the U S Geological Survey written by Margaret E. Hinkle and published by . This book was released on 1988 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: See journals under US Geological survey. Circular 997.

Download or read book Organization Programs and Activities of the Geologic Division U S Geological Survey written by Geological Survey (U.S.). Geologic Division and published by . This book was released on 1983 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Global Geochemical Database for Environmental and Resource Management written by IGCP Project 259 and published by . This book was released on 1995 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book stems from the multi-stage International Geochemical Mapping (IGM), an International Geological Correlation Programme (IGCP) project, to set up a global geochemical database on the distribution and quantities present of all 92 chemical elements in the surface of the earth. A comprehensive review and evaluation of methods for regional and national geochemical mapping and providing a recognized, global quantitative base on which local investigations can be built for particular environmental and economic problems concerning various aspects of land use.