Niobium and tantalum
Klaus J. Schulz, Nadine M. Piatak, John F. Papp
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-M
Niobium and tantalum are transition metals that are almost always found together in nature because they have very similar physical and chemical properties. Their properties of hardness, conductivity, and resistance to corrosion largely determine their primary uses today. The leading use of niobium (about 75 percent) is in the production...
Critical mineral resources of the United States—Economic and environmental geology and prospects for future supply
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802
SummaryMineral commodities are vital for economic growth, improving the quality of life, providing for national defense, and the overall functioning of modern society. Minerals are being used in larger quantities than ever before and in an increasingly diverse range of applications. With the increasing demand for a considerably more diverse...
Beryllium
Nora K. Foley, Brian W. Jaskula, Nadine M. Piatak, Ruth F. Schulte
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-E
Beryllium is a mineral commodity that is used in a variety of industries to make products that are essential for the smooth functioning of a modern society. Two minerals, bertrandite (which is supplied domestically) and beryl (which is currently supplied solely by imports), are necessary to ensure a stable supply...
Cobalt
John F. Slack, Bryn E. Kimball, Kim B. Shedd
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-F
Cobalt is a silvery gray metal that has diverse uses based on certain key properties, including ferromagnetism, hardness and wear-resistance when alloyed with other metals, low thermal and electrical conductivity, high melting point, multiple valences, and production of intense blue colors when combined with silica. Cobalt is used mostly in...
Antimony
Robert R. Seal II, Klaus J. Schulz, John H. DeYoung, Jr., David M. Sutphin, Lawrence J. Drew, James F. Carlin Jr., Byron R. Berger
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-C
Antimony is an important mineral commodity used widely in modern industrialized societies. The element imparts strength, hardness, and corrosion resistance to alloys that are used in many areas of industry, including in lead-acid storage batteries. Antimony’s leading use is as a fire retardant in safety equipment and in household goods,...
Rare-earth elements
Bradley S. Van Gosen, Philip L. Verplanck, Robert R. Seal, II, Keith R. Long, Joseph Gambogi
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-O
The rare-earth elements (REEs) are 15 elements that range in atomic number from 57 (lanthanum) to 71 (lutetium); they are commonly referred to as the “lanthanides.” Yttrium (atomic number 39) is also commonly regarded as an REE because it shares chemical and physical similarities and has affinities with the lanthanides....
Critical mineral resources of the United States—An introduction
Klaus J. Schulz, John H. DeYoung Jr., Robert R. Seal II, Dwight Bradley
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-A
Many changes have taken place in the mineral resource sector since the publication by the U.S. Geological Survey of Professional Paper 820, “United States Mineral Resources,” which is a review of the long-term United States resource position for 65 mineral commodities or commodity groups. For example, since 1973, the United...
Vanadium
Karen D. Kelley, Clint Scott, Desiree E. Polyak, Bryn E. Kimball
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-U
Vanadium is used primarily in the production of steel alloys; as a catalyst for the chemical industry; in the making of ceramics, glasses, and pigments; and in vanadium redox-flow batteries (VRBs) for large-scale storage of electricity. World vanadium resources in 2012 were estimated to be 63 million metric tons, which...
Germanium and indium
W.C. Pat Shanks III, Bryn E. Kimball, Amy C. Tolcin, David E. Guberman
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-I
Germanium and indium are two important elements used in electronics devices, flat-panel display screens, light-emitting diodes, night vision devices, optical fiber, optical lens systems, and solar power arrays. Germanium and indium are treated together in this chapter because they have similar technological uses and because both are recovered as byproducts,...
Tellurium
Richard J. Goldfarb, Byron R. Berger, Micheal W. George, Robert R. Seal, II
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-R
Tellurium (Te) is a very rare element that averages only 3 parts per billion in Earth’s upper crust. It shows a close association with gold and may be present in orebodies of most gold deposit types at levels of tens to hundreds of parts per million. In large-tonnage mineral deposits,...
Graphite
Gilpin R. Robinson Jr., Jane M. Hammarstrom, Donald W. Olson
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-J
Graphite is a form of pure carbon that normally occurs as black crystal flakes and masses. It has important properties, such as chemical inertness, thermal stability, high electrical conductivity, and lubricity (slipperiness) that make it suitable for many industrial applications, including electronics, lubricants, metallurgy, and steelmaking. For some of these...
Lithium
Dwight Bradley, Lisa L. Stillings, Brian W. Jaskula, LeeAnn Munk, Andrew D. McCauley
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-K
Lithium, the lightest of all metals, is used in air treatment, batteries, ceramics, glass, metallurgy, pharmaceuticals, and polymers. Rechargeable lithium-ion batteries are particularly important in efforts to reduce global warming because they make it possible to power cars and trucks from renewable sources of energy (for example, hydroelectric, solar, or...
Environmental considerations related to mining of nonfuel minerals
Robert R. Seal II, Nadine M. Piatak, Bryn E. Kimball, Jane M. Hammarstrom
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-B
Throughout most of human history, environmental stewardship during mining has not been a priority partly because of the lack of applicable laws and regulations and partly because of ignorance about the effects that mining can have on the environment. In the United States, the National Environmental Policy Act of 1969,...
Gallium
Nora K. Foley, Brian W. Jaskula, Bryn E. Kimball, Ruth F. Schulte
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-H
Gallium is a soft, silvery metallic element with an atomic number of 31 and the chemical symbol Ga. Gallium is used in a wide variety of products that have microelectronic components containing either gallium arsenide (GaAs) or gallium nitride (GaN). GaAs is able to change electricity directly into laser light...
Manganese
William F. Cannon, Bryn E. Kimball, Lisa A. Corathers
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-L
Manganese is an essential element for modern industrial societies. Its principal use is in steelmaking, where it serves as a purifying agent in iron-ore refining and as an alloy that converts iron into steel. Although the amount of manganese consumed to make a ton of steel is small, ranging from...
Zirconium and hafnium
James V. Jones III, Nadine M. Piatak, George M. Bedinger
Klaus J. Schulz, DeYoung Jr., Robert R. Seal II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-V
Zirconium and hafnium are corrosion-resistant metals that are widely used in the chemical and nuclear industries. Most zirconium is consumed in the form of the main ore mineral zircon (ZrSiO4, or as zirconium oxide or other zirconium chemicals. Zirconium and hafnium are both refractory lithophile elements that have nearly identical...
Tin
Robert J. Kamilli, Bryn E. Kimball, James F. Carlin Jr.
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-S
Tin (Sn) is one of the first metals to be used by humans. Almost without exception, tin is used as an alloy. Because of its hardening effect on copper, tin was used in bronze implements as early as 3500 B.C. The major uses of tin today are for cans and...
Selenium
Lisa L. Stillings
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-Q
Selenium (Se) was discovered in 1817 in pyrite from copper mines in Sweden. It is a trace element in Earth’s crust, with an abundance of three to seven orders of magnitude less than the major rock-forming elements. Commercial use of selenium began in the United States in 1910, when it...
Barite (Barium)
Craig A. Johnson, Nadine M. Piatak, M. Michael Miller
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-D
Barite (barium sulfate, BaSO4) is vital to the oil and gas industry because it is a key constituent of the mud used to drill oil and gas wells. Elemental barium is an additive in optical glass, ceramic glazes, and other products. Within the United States, barite is produced mainly from...
Fluorine
Timothy S. Hayes, M. Michael Miller, Greta J. Orris, Nadine M. Piatak
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-G
Fluorine compounds are essential in numerous chemical and manufacturing processes. Fluorspar is the commercial name for fluorite (isometric CaF2), which is the only fluorine mineral that is mined on a large scale. Fluorspar is used directly as a fluxing material and as an additive in different manufacturing processes. It is...
Titanium
Laurel G. Woodruff, George M. Bedinger, Nadine M. Piatak
Klaus J. Schulz, DeYoung Jr., Robert R. Seal, II, Dwight Bradley, editor(s)
2017, Professional Paper 1802-T
Titanium is a mineral commodity that is essential to the smooth functioning of modern industrial economies. Most of the titanium produced is refined into titanium dioxide, which has a high refractive index and is thus able to impart a durable white color to paint, paper, plastic, rubber, and wallboard. Because...
A field trip guide to the petrology of Quaternary volcanism on the Yellowstone Plateau
Jorge A. Vazquez, Mark E. Stelten, Ilya N. Bindeman, Kari Cooper
2017, Scientific Investigations Report 2017-5022-Q
The Yellowstone Plateau is one of the largest manifestations of silicic volcanism on Earth, and marks the youngest focus of magmatism associated with the Yellowstone Hot Spot. The earliest products of Yellowstone Hot Spot volcanism are from ~17 million years ago, but may be as old as ~32 Ma, and...
The discovery and character of Pleistocene calcrete uranium deposits in the Southern High Plains of west Texas, United States
Bradley S. Van Gosen, Susan M. Hall
2017, Scientific Investigations Report 2017-5134
This report describes the discovery and geology of two near-surface uranium deposits within calcareous lacustrine strata of Pleistocene age in west Texas, United States. Calcrete uranium deposits have not been previously reported in the United States. The west Texas uranium deposits share characteristics with some calcrete uranium deposits in Western...
Groundwater levels, geochemistry, and water budget of the Tsala Apopka Lake system, west-central Florida, 2004–12
W. Scott McBride, Patricia A. Metz, Patrick J. Ryan, Mark Fulkerson, Harry C. Downing
2017, Scientific Investigations Report 2017-5132
Tsala Apopka Lake is a complex system of lakes and wetlands, with intervening uplands, located in Citrus County in west-central Florida. It is located within the 2,100 square mile watershed of the Withlacoochee River, which drains north and northwest towards the Gulf of Mexico. The lake system is managed by...
Evaluation of the Hydrolab HL4 water-quality sonde and sensors
Teri T. Snazelle
2017, Open-File Report 2017-1153
The U.S. Geological Survey (USGS) Hydrologic Instrumentation Facility evaluated three Hydrolab HL4 multiparameter water-quality sondes by OTT Hydromet. The sondes were equipped with temperature, conductivity, pH, dissolved oxygen (DO), and turbidity sensors. The sensors were evaluated for compliance with the USGS National Field Manual for the Collection of Water-Quality Data...
