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.

Minerals are part of virtually every product we use. Common examples include copper used in electrical wiring and titanium used to make airplane frames and paint pigments. The Information Age has ushered in a number of new mineral uses in a number of products including cell phones (e.g., tantalum) and liquid crystal displays (e.g., indium). For some minerals, such as the platinum group metals used to make cataytic converters in cars, there is no substitute. If the supply of any given mineral were to become restricted, consumers and sectors of the U.S. economy could be significantly affected. Risks to minerals supplies can include a sudden increase in demand or the possibility that natural ores can be exhausted or become too difficult to extract. Minerals are more vulnerable to supply restrictions if they come from a limited number of mines, mining companies, or nations. Baseline information on minerals is currently collected at the federal level, but no established methodology has existed to identify potentially critical minerals. This book develops such a methodology and suggests an enhanced federal initiative to collect and analyze the additional data needed to support this type of tool.

As a law student and young lawyer in the 1760s, Thomas Jefferson began writing abstracts of English common law reports. Even after abandoning his law practice, he continued to rely on his legal commonplace book to document the legal, historical, and philosophical reading that helped shape his new role as a statesman. Indeed, he made entries in the notebook in preparation for his mission to France, as president of the United States, and near the end of his life. This authoritative volume is the first to contain the complete text of Jefferson’s notebook. With more than 900 entries on such thinkers as Beccaria, Montesquieu, and Lord Kames, Jefferson’s Legal Commonplace Book is a fascinating chronicle of the evolution of Jefferson’s searching mind. Jefferson’s abstracts of common law reports, most published here for the first time, indicate his deepening commitment to whig principles and his incisive understanding of the political underpinnings of the law. As his intellectual interests and political aspirations evolved, so too did the content and composition of his notetaking. Unlike the only previous edition of Jefferson’s notebook, published in 1926, this edition features a verified text of Jefferson’s entries and full annotation, including essential information on the authors and books he documents. In addition, the volume includes a substantial introduction that places Jefferson’s text in legal, historical, and biographical context.

Mineral Commodity Summaries 2019

The book includes six chapters that cover Virginia history from initial settlement through the 20th century plus one that deals with the important role of underwater archaeology. Written by prominent archaeologists with research experience in their respective topic areas, the chapters consider important issues of Virginia history and consider how the discipline of historic archaeology has addressed them and needs to address them . Changes in research strategy over time are discussed , and recommendations are made concerning the need to recognize the diverse and often differing roles and impacts that characterized the different regions of Virginia over the course of its historic past. Significant issues in Virginia history needing greater study are identified.