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Ultramafic-Hosted Talc-Magnesite Deposits
Gilpin R. Robinson Jr., Bradley S. Van Gosen, Nora K. Foley
2006, Open-File Report 2006-1229
This presentation on the geology of ultramafic-hosted talc-magnesite deposits was given at the 42nd Forum on the Geology of Industrial Minerals, May 7-13, 2006, in Asheville, North Carolina (USA). Talc is a soft inert industrial mineral commodity commonly used as a component or filler in ceramic, paint, paper, plastic, roofing,...
Coastal circulation and sediment dynamics in Hanalei Bay, Kaua'i, Hawaii. Part III: Studies of sediment toxicity
Robert S. Carr, Marion Nipper, Michael Field, James M. Biedenbach
2006, Open-File Report 2006-1147
Toxicity tests are commonly conducted as a measure of the bioavailability of toxic chemicals to biota in an environment. Chemical analyses alone are insufficient to determine whether contaminants pose a threat to biota. Porewater toxicity tests are extremely sensitive to a broad range of contaminants in marine environments and provide...
Investigating ebullition in a sand column using dissolved gas analysis and reactive transport modeling
Richard T. Amos, K. Ulrich Mayer
2006, Environmental Science & Technology (40) 5361-5367
Ebullition of gas bubbles through saturated sediments can enhance the migration of gases through the subsurface, affect the rate of biogeochemical processes, and potentially enhance the emission of important greenhouse gases to the atmosphere. To better understand the parameters controlling ebullition, methanogenic conditions were produced in a column experiment and...
Natural history collections: A scientific treasure trove
Water Resources Division, U.S. Geological Survey
2006, Fact Sheet 2006-3079
Natural history collections play an indispensable and often overlooked role in the conservation and management of our Nation’s flora and fauna. Scientific specimens housed in museum collections not only open an important window into the current and past diversity of life on Earth, but also play a vital role in...
Preliminary Water-Table Map and Water-Quality Data for Part of the Matanuska-Susitna Valley, Alaska, 2005
Edward H. Moran, Gary L. Solin
2006, Open-File Report 2006-1209
The Matanuska-Susitna Valley is in the northeastern part of the Cook Inlet Basin, Alaska, an area experiencing rapid population growth and development proximal to many lakes. Here water commonly flows between lakes and ground water, indicating interrelation between water quantity and quality. Thus concerns exist that poorer quality ground water...
Water resources data Maryland, Delaware, and Washington, D.C., water year 2005, Volume 2. Ground-water data
Stephen E. Curtin, Deborah A. Bringman, Elizabeth H. Marchand
2006, Water Data Report MD-DE-DC-05-2
Water resources data for the 2005 water year for Maryland, Delaware, and Washington, D.C. consist of records of water levels and water quality of ground-water wells. This report (Volume 2. Ground-Water Data) contains water levels at 352 observation wells, discharge records for 4 springs, and water quality at 118 wells....