Howard E. Taylor

Johns Hopkins University Applied Physics Laboratory

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Ronald C. Antweiler

United States Geological Survey

Larry Benson

United States Geological Survey

Charles N. Alpers

United States Geological Survey

M. Alisa Mast

United States Geological Survey

D. Kirk Nordstrom

United States Geological Survey

Larry B. Barber

United States Geological Survey

John R. Stein

Gallup Indian Medical Center

David D. Susong

Utah Geological Survey

L.B. Laird

United States Geological Survey

Philip L. Verplanck

United States Geological Survey

Cooperative Institutions

United States Geological Survey

Southwest Research Institute

Lockheed Martin (United States)

Pacific Island Ecosystems Research Center

Denver Federal Center

University of Colorado Boulder

Johns Hopkins University Applied Physics Laboratory

Goddard Space Flight Center

University of Arizona

United States Department of the Interior

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Mercury cycling in agricultural and managed wetlands, Yolo Bypass, California: Spatial and seasonal variations in water quality

The Science of The Total Environment (2013)

Charles N. Alpers Jacob A. Fleck Mark Marvin-DiPasquale Craig A. Stricker Mark Stephenson

Mercury

Cycling

10.1016/j.scitotenv.2013.10.096

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Citations (62)

Trees, Chemistry, and Prehistory in the American Southwest

Journal of Archaeological Science (1999)

Stephen R. Durand Phillip H. Shelley Ronald C. Antweiler Howard E. Taylor

Lithology

Bedrock

10.1006/jasc.1998.0315

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Citations (56)

Considerations in As analysis and speciation

American Water Works Association (1998)

Marc Edwards Sapna Patel Laurie S. McNeill Hsiao‐wen Chen Michelle Frey

A modified field technique can quantify particulate As, soluble As(III), and soluble As(V) in drinking water. Several problems with commonly used techniques that analyze for arsenic are reported, and solutions are proposed. Analytical techniques can accurately detect <0.5 μg/L total arsenic if certain conditions are met: iron, nitrate, and other interferences are overcome in hydride generation techniques, poor recoveries are overcome in graphite furnace atomic adsorption techniques, and chloride interferences are accounted for in inductively coupled plasma mass spectrometry techniques. Because no techniques adequately preserve arsenic species during storage, a speciation protocol that is fast (about 5 min/sample), relatively inexpensive (about $10/resin column), and user‐friendly and that can be applied in the field was developed. Particulate arsenic represents a significant fraction of total arsenic in drinking water.

Genetic algorithm

10.1002/j.1551-8833.1998.tb08402.x

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Citations (95)

Anthropogenic tracers, endocrine disrupting chemicals, and endocrine disruption in Minnesota lakes

The Science of The Total Environment (2010)

Jeffrey H. Writer Larry B. Barber Greg K. Brown Howard E. Taylor Richard L. Kiesling

Nonylphenol

Endocrine disruptor

Vitellogenin

10.1016/j.scitotenv.2010.07.018

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Citations (84)

Ancient maize from Chacoan great houses: Where was it grown?

Proceedings of the National Academy of Sciences (2003)

Larry Benson Linda S. Cordell Kirk R. Vincent Howard E. Taylor John R. Stein

In this article, we compare chemical ( 87 Sr/ 86 Sr and elemental) analyses of archaeological maize from dated contexts within Pueblo Bonito, Chaco Canyon, New Mexico, to potential agricultural sites on the periphery of the San Juan Basin. The oldest maize analyzed from Pueblo Bonito probably was grown in an area located 80 km to the west at the base of the Chuska Mountains. The youngest maize came from the San Juan or Animas river floodplains 90 km to the north. This article demonstrates that maize, a dietary staple of southwestern Native Americans, was transported over considerable distances in pre-Columbian times, a finding fundamental to understanding the organization of pre-Columbian southwestern societies. In addition, this article provides support for the hypothesis that major construction events in Chaco Canyon were made possible because maize was brought in to support extra-local labor forces.

Bonito

River valley

10.1073/pnas.2135068100

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Citations (88)

Distribution and geochemistry of selected trace elements in the Sacramento River near Keswick Reservoir

Chemical Geology (2012)

Ronald C. Antweiler Howard E. Taylor Charles N. Alpers

Trace metal

10.1016/j.chemgeo.2011.12.025

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Citations (9)