Book Chapters
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 6071
Natural Attenuation in Source Zone and Groundwater Plume - Bemidji Crude Oil Spill
A long-term study of a 40-year-old crude oil spill provides insights about petroleum hydrocarbon natural attenuation processes and rates. In the source zone, fermentation coupled to methanogenesis is the dominant natural source zone depletion (NSZD) process, and most of the carbon mass exits the surface as CO2 efflux. Monitored natural attenuation (MNA) of the groundwater plume shows that benzene
Authors
Barbara A. Bekins
GoMAMN strategic bird monitoring guidelines: Avian health
No abstract available.
Authors
M. A. Ottinger, T. Maness, J. K. Grace, R. R. Wilson, Patrick G.R. Jodice
Asian carp population modeling to support an Adaptive Management framework, USGS Contribution
The Spatially Explicit Asian carp Population (SEAcarP) model was developed to inform management and research decisions with the goal of minimizing the abundance of Bighead Carp and Silver Carp (collectively referred to as “Asian carp” in this document) in the upper Illinois River waterway, thereby reducing risk of population expansion toward the Great Lakes and reducing potential impacts on native
Authors
Richard A. Erickson
Heavy mineral sands resources in China
About 200 known coastal deposits of heavy mineral sands (HMS) occur in China, in which considerable mineral resources of titanium, zircon, rare earth elements, and thorium exist in the forms of ilmenite, rutile, zircon, and monazite. More than 20 of these HMS deposits are reported as having been or are actively being mined in China during the past three decades, of which 12 have been reported to h
Authors
Bradley S. Van Gosen, Baohong Hou, Tianrui Song
Holocene sedimentary architecture and paleoclimate variability at Mono Lake, California
Mono Lake occupies an internally drained basin on the eastern flank of the Sierra Nevada, and it is sensitive to climatic changes affecting precipitation in the mountains (largely delivered in the form of snowpack). Efforts to recover cores from the lake have been impeded by coarse tephra erupted from the Mono Craters, and by disruption of the lake floor due to the uplift of Paoha Island ~300 yr a
Authors
Susan H Zimmerman, Sidney R. Hemming, Scott W. Starratt
Rare earth element deposits in China: A review and new understandings
No abstract available.
Authors
Yuling Xie, Philip Verplanck, Zengqian Hou, Richen Zhong
Earthquakes, ShakeMap
ShakeMap® is an open-source software program employed to automatically produce a suite of maps and products that portray the geographical extent and severity of potentially damaging shaking following an earthquake. ShakeMap’s primary purpose is to provide post-earthquake situational awareness for emergency management and response as well as damage and loss estimation. The availability of ShakeMaps
Authors
David J. Wald, Charles Worden, Eric M. Thompson, Mike Hearne
Aquatic cycling of mercury
This chapter examines crucial processes in the aquatic cycling of mercury (Hg) that may lead to microbial production of neurotoxic and bioaccumulative methylmercury (MeHg), and highlights environmental conditions in the Everglades that make it ideal for MeHg production and bioaccumulation. The role of complexation of Hg2+ in surface water, especially by dissolved organic matter (DOM), in the trans
Authors
William H. Orem, David P. Krabbenhoft, Brett Poulin, George A Aiken
Sulfur contamination in the Everglades, a major control on mercury methylation
In this chapter sulfur contamination of the Everglades and its role as a major control on methylmercury (MeHg) production is examined. Sulfate concentrations over large portions of the Everglades (60% of the ecosystem) are elevated or greatly elevated compared to background conditions of <1 mg/L. Land and water management practices in south Florida are the primary reason for the high levels of sul
Authors
William H. Orem, David P. Krabbenhoft, Brett Poulin, George Aiken
Seabirds
No abstract available.
Authors
Patrick Jodice, Evan Adams, Juliet S. Lamb, Yvan Satgé, Jeffrey S. Gleason
Pyritization history in the middle to upper Cambrian Alum Shale, Scania Sweden: Evidence for ongoing diagenetic processes
Detailed diagenetic studies of the late Cambrian Alum Shale in southern Sweden were undertaken across an interval that includes the peak Steptoean Positive Carbon Isotope Excursion (SPICE) event to evaluate the pyrite mineralization history in the formation. Samples were collected from the Andrarum-3 core (Scania, Sweden); here the Alum was deposited in the distal, siliciclastic mudstone-rich end
Authors
Neil S. Fishman, Sven O. Egenhoff, Heather A. Lowers, Adam Boehlke, Per Ahlberg
Tradition and science chronicle Pele's unyielding power
No abstract available.
Authors
James P. Kauahikaua