United States Geological Survey USGS

To determine the latitude and longitude of your facility you will need a topographic map from United States Geological Survey (USGS). 

Soil sampling was conducted across the Canadian Maritime provinces and the US states during 2007 using an established field protocol by the United States Geological Survey (USGS), the Geological Survey of Canada (GSC) and the New Brunswick and Nova Scotia provincial surveys. 

Accuracy, Precision, and Detection Limits — Analytical cost, accuracy, precision, and detection limits are the four main evaluation criteria for selecting an analytical method. Detection limit information will not be givdn here, as it is easily obtained from the literature or from instrument manufacturers. The analysis of NBS orchard leaves and bovine liver is often used to demonstrate the accuracy and precision of ICP analysis. We feel that the analysis of United States Geological Survey (USGS) and Canadian Centre for Mineral Energy Technology (CANMET) standard rocks, is a more rigorous test of ICP analytical accuracy because of the resistance to sample... 

By 2002, there were about 1 billion cell phones in use throughout the world. By 2005, experts estimated that about 500 million unused cell phones were stuck in drawers and closets for storage. According to experts at the United States Geological Survey (USGS), the earth science branch of the federal government, these discarded cell phones are a treasure trove of valuable metals waiting to be recycled. 

The United States Geological Survey (USGS) has provided extensive reviews on the distribution, trends, and governing factors on pesticides in groundwater and in surface water (Barbash and Resek, 1996 Larson et al, 1997 USGS, 2006). These reviews included data on several triazines and chlorotriazine metabolites and are helpful in understanding the environmental fate of triazines within the hydrologic cycle in the Midwestern United States. 

A number of major studies to analyze triazine herbicides and their degradation products (i.e., metabolites) in water have been carried out by the United States Geological Survey (USGS), Water Resources Division, in the Toxic Substances Hydrology Program. These studies investigated four major water resources - groundwater, surface water, reservoirs, and precipitation. 

Modeling results are summarized in several ways. First, Fig. 13 presents iso-pleths of annual average benzene concentrations overlaid on a United States Geological Survey (USGS) topographic map of the refinery area. Each curved line... 

OPPs have been detected more often and at higher concentrations in surface water than in groundwater. In the U.S., the United States Geological Survey (USGS) reports that 66 million pounds of OPPs are used each year and that in surface-water samples, the compounds most often... 

United States Geologic Survey (USGS) (2000). World Assessment Summary Remaining Reserves. U.S. Geological Survey Digital Data Series 60. 

A peak in accurate trace element analysis appears to have been reached in the early 1970 s. There are three reasons for this. Firstly, the number of standard samples in circulation was small, with attention directed upon the six United States Geological Survey (USGS) standards (peridotite PCC-1, dunite DTS-1, basalt BCR-1, andesite AGV-1, granodiorite GSP-1 and granite G-2) which supplemented G-1 and W-1. Secondly, many new methods of analysis were being introduced, so that careful interlaboratory calibration was important to demonstrate the reliability of the new techniques. Thirdly, the arrival of the lunar samples placed a premium on high quality analyses of this unique material, access to the samples being denied to laboratories whose data were shown to be in error. The situation since that time has deteriorated, and the quality of many published trace element determinations appears to be little better than in the 1960 s. 

Government Agencies. The United States Geological Survey (USGS) plays a major role in earthquake studies and earthquake prediction for the United States. In addition to providing general information regarding earthquakes, it makes available data on the latest earthquakes in the United States and around... 

REEs are classified as lithophiles and are partitioned into the earth s crust and mantle. The name rare earths originated over a century ago when the elements were first identified in minerals that, at the time, were rare. The elements are actually distributed widely over the earth and relatively accessible on the earth s surface. For a comprehensive description of REE geology, geochemistry, and natural abundances, see Geology, Geochemistry, and Natural Abundances of the Rare Earth Elements. In 2010, the United States Geological Survey (USGS) estimated that there were REE reserves of 110 million metric tons (mt). The static depletion index, the ratio of reserves to present-day production, for REEs is approximately 870 years. Thus, the primary immediate consideration is whether REE production can match demand, and particularly whether it will be possible to increase the use of dysprosium and neodymium in wind turbines and the batteries of electric vehicles. 

World lithium resources have already been evaluated and quantified by researchers, NGOs and private enterprises, although there is no consensus regarding the figures or the way in which they should be calculated in 2005, the United States Geological Survey (USGS) established that there were 15 million tons (Mt) of lithium reserve base and 6.8 Mt of reserves, while Clarke and Harben mentioned 39.4 Mt of resources and 27.7 Mt of reserve base in 2008. 

An intermediate vision is presented by the United States Geological Survey (USGS) which estimates that there are enough petroleum reserves to continue current production rates for 50-100 years. In 2000, a USGS study of worldwide oil reserves predicted a possible peak in oil production around the year 2037 [5]. The US Department of Energy predicts that global oil production will peak somewhere between 2020 and 2050, but that the output is likely to increase at a substantially slower rate after 2020 [6]. Price speculation is likely to increase petrochemical prices before peak oil production is reached. 

United States Geological Survey (USGS) http //www.usgs.gov/ (accessed June 15, 2010). Started in 1879, the USGS provides reliable scientific information to describe and understand the Earth and to manage water, biological, energy, and mineral resources. 

United States Geological Survey (USGS) http //www.usgs.gov/ (accessed July 11,2010). Self-described as the Federal source for science about the Earth, its natural and living resources, natural hazards, and the enviromnent. Current topics of national and international concern are exemplified in the links to the USGS Responds to Deepwater Horizon Oil Spill at http //www.usgs.gov/deepwater horizon/ (accessed March 27, 2011) and the eruption of the Iceland Volcano, Eyjafjallajokull at http //volcanoes.usgs.gov/publications/2010/ice-land.php (accessed March 11,2011). 

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