Book Chapters
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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: 6063
Ore mineralogy and textural zonation in the world-class epithermal Waihi Vein System, Hauraki Goldfield
The Waihi district in the Hauraki Goldfield of New Zealand contains adularia-sericite epithermal gold-silver veins that have produced more than 7.7 Moz gold. The outermost veins of the district (Martha, Favona, Moonlight, and Cowshed) contain abundant colloform, cherty, and black quartz fill textures, with minor crustiform and massive quartz. The central veins (Amaranth, Trio, and Union) contain p
Authors
Jeffrey L. Mauk, Erin G Skinner, Sarah J Fyfe, Andrew H Menzies, Heather A. Lowers, Alan E. Koenig
Pinedale glacial history of the upper Arkansas River valley: New moraine chronologies, modeling results, and geologic mapping
This field-trip guide outlines the glacial history of the upper Arkansas River valley, Colorado, and builds on a previous GSA field trip to the area in 2010. The following will be presented: (1) new cosmogenic 10Be exposure ages of moraine boulders from the Pinedale and Bull Lake glaciations (Marine Isotope Stages 2 and 6, respectively) located adjacent to the Twin Lakes Reservoir, (2) numerical m
Authors
Avriel D. Schweinsberg, Jason P. Briner, Ralph R. Shroba, Joseph M. Licciardi, Eric M. Leonard, Keith A. Brugger, Charles M. Russell
Protecting national parks from air pollution effects: Making sausage from science and policy
The story of air pollution research, policy development, and management in national parks is a fascinating blend of cultural change, vision, interdisciplinary and interagency collaboration, and science-policy-management-stakeholder collaborations. Unable to ignore the loss of iconic vistas from regional haze and loss of fish from acid rain in the 1980s, the National Park Service (NPS) embraced an
Authors
Jill S. Baron, Tamara Blett, William C. Malm, Ruth Alexander, Holly Doremus
Rare earth element deposits in China
China is the world’s leading rare earth element (REE) producer and hosts a variety of deposit types. Carbonatite- related REE deposits, the most significant deposit type, include two giant deposits presently being mined in China, Bayan Obo and Maoniuping, the first and third largest deposits of this type in the world, respectively. The carbonatite-related deposits host the majority of China’s REE
Authors
Yu-Ling Xie, Zeng-qian Hou, Richard J. Goldfarb, Xiang Guo, Lei Wang
Recent and possible future variations in the North American Monsoon
The dynamics and recent and possible future changes of the June–September rainfall associated with the North American Monsoon (NAM) are reviewed in this chapter. Our analysis as well as previous analyses of the trend in June–September precipitation from 1948 until 2010 indicate significant precipitation increases over New Mexico and the core NAM region, and significant precipitation decreases over
Authors
Andrew Hoell, Chris Funk, Mathew Barlow, Shraddhanand Shukla
Relationship between porphyry systems, crustal preservation levels, and amount of exploration in magmatic belts of the Central Tethys Region
Tectonic, geologic, geochemical, geochronologic, and ore deposit data from the U.S. Geological Survey-led assessment of 26 porphyry belts identified in the central Tethys region of Turkey, the Caucasus, Iran, western Pakistan, and southern Afghanistan relate porphyry mineralization to the tectonomagmatic evolution of the region and associated subduction and postsubduction processes. However, uplif
Authors
Lukas Zürcher, Jane M. Hammarstrom, John C. Mars, Stephen Ludington, Michael L. Zientek
Rotational seismology
Rotational seismology is an emerging study of all aspects of rotational motions induced by earthquakes, explosions, and ambient vibrations. It is of interest to several disciplines, including seismology, earthquake engineering, geodesy, and earth-based detection of Einstein’s gravitation waves.Rotational effects of seismic waves, together with rotations caused by soil–structure interaction, have b
Authors
William H. K. Lee
Select airborne techniques for mapping and problem solving: Chapter 30
No abstract available.
Authors
Andrea Donnellan, Ramon Arrowsmith, Victoria E. Langenheim
Soil phosphorus cycling in tropical soils: An ultisol and oxisol perspective
Phosphorus (P) is essential for life. It is the backbone of our DNA, provides energy for biological reactions, and is an integral component of cell membranes. As such, it is no surprise that P availability plays a strong role in regulating ecosystem structure and function (Wassen et al. 2005, Elser et al. 2007, Condit et al. 2013), and in determining our capacity to grow food for a burgeoning huma
Authors
Sasha C. Reed, Tana E Wood
South Park, Colorado: The interplay of tectonics and sedimentation creates one of Colorado’s crown jewels
Recent mapping efforts and hydrocarbon exploration in the South Park Basin
have brought to light the magnitude in complexity of a structural basin already
recognized for its unique sedimentary and tectonic setting. This fi eld trip to one of
Colorado’s scenic gems will examine how Paleozoic, Mesozoic, and Cenozoic strata
record the tectonic signatures of at least three orogenic episodes. We will c
Authors
Peter E Barkmann, Edward J Sterne, Marieke Dechesne, Karen J. Houck
Space and habitat use by breeding Golden-winged Warblers in the central Appalachian Mountains
Spot-mapping, or recording locations of observed use by territorial songbirds, is often used to delineate core breeding territories. However, a recent radiotelemetry study in Minnesota found that male Golden-winged Warblers (Vermivora chrysoptera) occurring in high-density populations used resources outside their spot-mapped territories. We compared differences in space use and quantified vegetati
Authors
Mack W. Frantz, Kyle R. Aldinger, Petra Wood, Joseph Duchamp, Timothy Nuttle, Andrew Vitz, Jeffrey L. Larkin