Nadine M Piatak
Nadine Piatak is a Research Geologist conducting investigations to better understand the geochemical processes that control the source, transport, and fate of trace elements associated with mineral deposits and mines. Her work has involved determining the geochemical characteristics of different types of mine waste as well as waters and stream sediments influenced by mining or by natural mineral weathering providing insight into near-surface processes that impact aquatic and terrestrial ecosystems and, potentially, human health. Additionally, she is investigating the life cycles of byproduct critical elements such as germanium and gallium. This work involves understanding the partitioning of byproduct elements during natural and anthropogenic processes. Aspects of this work include examining the geochemistry that leads to enrichment of byproduct critical elements in certain types ore deposits and understanding how mineralogical hosts and speciation influence their recovery efficiencies during ore-processing and refining.
B.Sc. and M.Sc. degrees in Geology from The Ohio State University in 1998 and 2000, respectively.
Professional Work Experience
U.S.G.S. Eastern Mineral and Environmental Resources Science Center, 2001 - present.
Science and Products
Environmental characteristics and utilization potential of metallurgical slag: Chapter 19
Slag, an abundant byproduct from the pyrometallurgical processing of ores, can be an environmental liability or a valuable resource. The most common environmental impact of slag is from the leaching of potentially toxic elements, acidity, or alkalinity that may impact nearby soils and surface water and groundwater. Factors that influence its...De Vivo, Benedetto; Belkin, Harvey E.; Lima, Annamaria; Piatak, Nadine
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 mines in Nevada. Imports in 2011 (the latest year for which...Schulz, Klaus J.; DeYoung,, John H.; Seal, Robert R.; Bradley, Dwight C.; Johnson, Craig A.; Piatak, Nadine M.; Miller, M. Michael
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 of high-purity beryllium metal,...Schulz, Klaus J.; DeYoung,, John H.; Seal, Robert R.; Bradley, Dwight C.; Foley, Nora K.; Jaskula, Brian W.; Piatak, Nadine M.; Schulte, Ruth F.
Environmental considerations related to mining of nonfuel minerals
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, in conjunction with related...Schulz, Klaus J.; DeYoung,, John H.; Seal, Robert R.; Bradley, Dwight C.; Seal, Robert R. ; Piatak, Nadine M.; Kimball, Bryn E.; Hammarstrom, Jane M.
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 the source of fluorine...Schulz, Klaus J.; DeYoung,, John H.; Seal, Robert R.; Bradley, Dwight C.; Hayes, Timothy S.; Miller, M. Michael; Orris, Greta J.; Piatak, Nadine M.
Niobium and tantalum
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 of high-...Schulz, Klaus J.; DeYoung,, John H.; Seal, Robert R.; Bradley, Dwight C.; Schulz, Klaus J.; Piatak, Nadine M.; Papp, John F.
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 of their high strength-to-weight...Schulz, Klaus J.; DeYoung,, John H.; Seal, Robert R.; Bradley, Dwight C.; Woodruff, Laurel G.; Bedinger, George M.; Piatak, Nadine M.
Zirconium and hafnium
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 charge, ionic...Schulz, Klaus J.; DeYoung,, John H.; Seal, Robert R. ; Bradley, Dwight C.; Jones, James V.; Piatak, Nadine M.; Bedinger, George M.
Suitability of river delta sediment as proppant, Missouri and Niobrara Rivers, Nebraska and South Dakota, 2015
Sediment management is a challenge faced by reservoir managers who have several potential options, including dredging, for mitigation of storage capacity lost to sedimentation. As sediment is removed from reservoir storage, potential use of the sediment for socioeconomic or ecological benefit could potentially defray some costs of its removal....Zelt, Ronald B.; Hobza, Christopher M.; Burton, Bethany L.; Schaepe, Nathaniel J.; Piatak, Nadine
Copper speciation in variably toxic sediments at the Ely Copper Mine, Vermont, United States
At the Ely Copper Mine Superfund site, Cu concentrations exceed background values in both streamwater (160–1200 times) and sediments (15–79 times). Previously, these sediment samples were incubated with laboratory test organisms, and they exhibited variable toxicity for different stream sites. In this study we combined bulk- and...Kimball, Bryn E.; Foster, Andrea L.; Seal, Robert R. ; Piatak, Nadine M.; Webb, Samuel M.; Hammarstrom, Jane M.
Sediment-hosted stratabound copper deposit model: Chapter M in Mineral deposit model for resource assessment
This report contains a descriptive model of sediment-hosted stratabound copper (SSC) deposits that supersedes the model of Cox and others (2003). This model is for use in assessments of mineral resource potential. SSC deposits are the second most important sources of copper in the world behind porphyry copper deposits. Around 20 percent of the...Hayes, Timothy S.; Cox, Dennis P.; Bliss, James D.; Piatak, Nadine M.; Seal, Robert R.
Characteristics and environmental aspects of slag: a review
Slag is a waste product from the pyrometallurgical processing of various ores. Based on over 150 published studies, this paper provides an overview of mineralogical and geochemical characteristics of different types of slag and their environmental consequences, particularly from the release of potentially toxic elements to water. This chapter...Piatak, Nadine M.; Parsons, Michael B.; Seal, Robert R.