United States Geological Survey Yearbook

United States Geological Survey Yearbook PDF Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Forest reserves
Languages : en
Pages : 288

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Book Description

United States Geological Survey Yearbook

United States Geological Survey Yearbook PDF Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Forest reserves
Languages : en
Pages : 288

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Book Description


Critical Mineral Resources of the United States

Critical Mineral Resources of the United States PDF Author: K. J. Schulz
Publisher: Geological Survey
ISBN: 9781411339910
Category : Business & Economics
Languages : en
Pages : 868

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Book Description
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.

Statistical Methods in Water Resources

Statistical Methods in Water Resources PDF Author: D.R. Helsel
Publisher: Elsevier
ISBN: 0080875084
Category : Science
Languages : en
Pages : 539

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Book Description
Data on water quality and other environmental issues are being collected at an ever-increasing rate. In the past, however, the techniques used by scientists to interpret this data have not progressed as quickly. This is a book of modern statistical methods for analysis of practical problems in water quality and water resources.The last fifteen years have seen major advances in the fields of exploratory data analysis (EDA) and robust statistical methods. The 'real-life' characteristics of environmental data tend to drive analysis towards the use of these methods. These advances are presented in a practical and relevant format. Alternate methods are compared, highlighting the strengths and weaknesses of each as applied to environmental data. Techniques for trend analysis and dealing with water below the detection limit are topics covered, which are of great interest to consultants in water-quality and hydrology, scientists in state, provincial and federal water resources, and geological survey agencies.The practising water resources scientist will find the worked examples using actual field data from case studies of environmental problems, of real value. Exercises at the end of each chapter enable the mechanics of the methodological process to be fully understood, with data sets included on diskette for easy use. The result is a book that is both up-to-date and immediately relevant to ongoing work in the environmental and water sciences.

Annual Report of the United States Geological Survey to the Secretary of the Interior

Annual Report of the United States Geological Survey to the Secretary of the Interior PDF Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Forest reserves
Languages : en
Pages : 576

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Maps for America

Maps for America PDF Author: Morris Mordecai Thompson
Publisher:
ISBN:
Category : Cartography
Languages : en
Pages : 288

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Open-file Report

Open-file Report PDF Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages :

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The United States Geological Survey, 1879-1989

The United States Geological Survey, 1879-1989 PDF Author: Mary C. Rabbitt
Publisher:
ISBN:
Category : Geological surveys
Languages : en
Pages : 64

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Book Description
A history of the relation of geology during the first 110 years of the US Geological Survey to the development of public-land, federal-science, and mapping policies and the development of mineral resources in the United States.

Gold in Porphyry Copper Systems

Gold in Porphyry Copper Systems PDF Author: Edwin W. Tooker
Publisher:
ISBN:
Category : Copper ores
Languages : en
Pages : 68

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New Publications of the Geological Survey

New Publications of the Geological Survey PDF Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 836

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Ground Water in the Central Valley, California

Ground Water in the Central Valley, California PDF Author: G. L. Bertoldi
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 56

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Book Description
See journals under US Geological survey. Prof. paper 1401-A.