Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16746
Time of travel and dispersion in the Merrimack River in Massachusetts from the state line to the Atlantic Ocean Time of travel and dispersion in the Merrimack River in Massachusetts from the state line to the Atlantic Ocean
To obtain copies of this report, please contact: Director, Division of Watershed Management, Massachusetts Department of Environmental Protection, 8 New Bond St.. Worcester, MA 01608, (508) 792–7650
Authors
Gene W. Parker
Mineral resource of the month: tellurium Mineral resource of the month: tellurium
Global demand for tellurium has grown significantly in recent years owing to increased use in solar cells in the United States and Europe, thermoelectronics (especially in China) and steelmaking worldwide. Estimated global production, however, has remained relatively unchanged over the same period, while accumulated inventories have been exhausted, leading to a supply shortfall.
Authors
Micheal W. George
Mineral resource of the month: diatomite Mineral resource of the month: diatomite
Diatomite is a soft, very fine-grained, siliceous sedimentary rock that is usually very light grey or beige in color. It is very finely porous, very low in density and essentially chemically inert. Rocks containing diatomite are excellent reservoir rocks for hydrocarbons.
Authors
Alan Founie
Mineral of the month: cement Mineral of the month: cement
Hydraulic cement is a virtually ubiquitous construction material that, when mixed with water, serves as the binder in concrete and most mortars. Only about 13 percent of concrete by weight is cement (the rest being water and aggregates), but the cement contributes all of the concrete’s compressional strength. The term “hydraulic” refers to the cement’s ability to set and harden...
Authors
Hendrik G. van Oss
An efficient method of capturing Painted Buntings and other small granivorous passerines An efficient method of capturing Painted Buntings and other small granivorous passerines
To study survival in the eastern breeding population of the Painted Bunting (Passerina ciris), I developed a technique to capture a large sample of buntings for color marking with leg-bands. This involved the use of bird feeders and an array of three short mist nets located at 40 sites in four states, each site meeting five specific criteria. In five years of mist netting (1999-2003)...
Authors
P.W. Sykes
Kendall-Theil Robust Line (KTRLine--version 1.0)-A Visual Basic Program for Calculating and Graphing Robust Nonparametric Estimates of Linear-Regression Coefficients Between Two Continuous Variables Kendall-Theil Robust Line (KTRLine--version 1.0)-A Visual Basic Program for Calculating and Graphing Robust Nonparametric Estimates of Linear-Regression Coefficients Between Two Continuous Variables
The Kendall-Theil Robust Line software (KTRLine-version 1.0) is a Visual Basic program that may be used with the Microsoft Windows operating system to calculate parameters for robust, nonparametric estimates of linear-regression coefficients between two continuous variables. The KTRLine software was developed by the U.S. Geological Survey, in cooperation with the Federal Highway...
Authors
Gregory E. Granato
Mineral resource of the month: mercury Mineral resource of the month: mercury
The ore of mercury, cinnabar, is soft and dark red, and native mercury is one of a few metals that is liquid at room temperatures. Cinnabar from Almaden, Spain, the world’s oldest producing mercury mine, was used during Roman times, and the chemical symbol for mercury (Hg) is from "hydrargyrum," from the Greek word meaning liquid silver. Cinnabar and mercury are associated with some...
Authors
William E. Brooks
Mineral resource of the month: nickel Mineral resource of the month: nickel
Together with chromium, nickel makes steel more resistant to corrosion. Stainless steel thus accounts for more than 65 percent of primary nickel consumption in the world. One of the more common grades of stainless steel is Type 304, which contains 18 to 20 percent chromium and 10.5 to 12 percent nickel. Owing to their high corrosion resistance, nickel-bearing stainless steels are widely...
Authors
Peter H. Kuck
Mineral resource of the month: beryllium Mineral resource of the month: beryllium
Beryllium metal is lighter than aluminum and stiffer than steel. These and other properties, including its strength, dimensional stability, thermal properties and reflectivity, make it useful for aerospace and defense applications, such as satellite and space-vehicle structural components. Beryllium’s nuclear properties, combined with its low density, make it useful as a neutron...
Authors
Kim B. Shedd
Mineral resource of the month: barite Mineral resource of the month: barite
Also called barytes, barite forms in various geologic environments and is frequently found with both metallic and nonmetallic minerals. Most barite is produced by open-pit mining techniques, and most crude barite requires some upgrading to meet minimum purity or specific gravity levels.
Authors
M. Michael Miller
Kaolin Kaolin
In 2005, 22 companies mined kaolin in nine US states. Production in Georgia declined to 6.19 Mt down from 6.78 Mt in 2004. Despite the decline, Georgia remained the leading producer state followed by Alabama, South Carolina, Arkansas, Texas, Nevada, California, North Carolina and Florida. In the next year or two, domestic and export sales of kaolin for paper application are not expected...
Authors
R.L. Virta