William F. Cannon
William (Bill) Cannon is a Scientist Emeritus with the USGS Geology, Energy & Minerals (GEM) Science Center in Reston, VA.
Science and Products
Filter Total Items: 15
Bedrock geologic map of the southern part of the Diorite and Champion 7 1/2 minute quadrangles, Marquette County, Michigan
This map illustrates the bedrock geology of part of the Marquette iron range in the Diorite and Champion 7 ½-minute quadrangles. The area includes part of the Marquette trough, a synclinorium containing rocks of the Marquette Range Supergroup (Precambrian X) and older Precambrian W basement gneiss. Among the Precambrian X rocks is the economically important banded iron-formation, and the oldest ro
Bedrock geologic map of the Republic quadrangle, Marquette County, Michigan
No abstract available.
Filter Total Items: 108
Mercury in the soil of two contrasting watersheds in the eastern United States
Soil represents the largest store of mercury (Hg) in terrestrial ecosystems, and further study of the factors associated with soil Hg storage is needed to address concerns about the magnitude and persistence of global environmental Hg bioaccumulation. To address this need, we compared total Hg and methyl Hg concentrations and stores in the soil of different landscapes in two watersheds in differen
Authors
Douglas A. Burns, Laurel G. Woodruff, Paul M. Bradley, William F. Cannon
Geochemical and mineralogical data for soils of the conterminous United States
In 2007, the U.S. Geological Survey initiated a low-density (1 site per 1,600 square kilometers, 4,857 sites) geochemical and mineralogical survey of soils of the conterminous United States as part of the North American Soil Geochemical Landscapes Project. Sampling and analytical protocols were developed at a workshop in 2003, and pilot studies were conducted from 2004 to 2007 to test and refine t
Authors
David B. Smith, William F. Cannon, Laurel G. Woodruff, Federico Solano, James E. Kilburn, David L. Fey
History and progress of the North American Soil Geochemical Landscapes Project, 2001-2010
In 2007, the U.S. Geological Survey, the Geological Survey of Canada, and the Mexican Geological Survey initiated a low-density (1 site per 1600 km2, 13323 sites) geochemical and mineralogical survey of North American soils (North American Soil Geochemical Landscapes Project). Sampling and analytical protocols were developed at a series of workshops in 20032004 and pilot studies were conducted fro
Authors
David B. Smith, William F. Cannon, Laurel G. Woodruff, Francisco Moreira Rivera, Andrew N. Rencz, Robert G. Garrett
A national-scale geochemical and mineralogical survey of soils of the conterminous United States
In 2007, the US Geological Survey initiated a low-density (1 site per 1600 km2, c. 4800 sites) geochemical and mineralogical survey of soils of the conterminous USA. The ideal sampling protocol at each site includes a sample from 0–5 cm depth, a composite of the soil A horizon, and a sample from the soil C horizon. The <2-mm fraction of each sample is analyzed for Al, Ca, Fe, K, Mg, Na, S, Ti, Ag,
Authors
David B. Smith, William F. Cannon, Laurel G. Woodruff
Geology of the Montreal River Monocline (Field trip guidebook)
No abstract available.
Authors
William F. Cannon
Midcontinent microcosm: Geology of the Atkins lake - Marengo falls area (Field trip 2)
Archean and Proterozoic rocks exposed over about 16km2 between Atkins Lake and Coffee Lake in southeastern Bayfield County (Fig. 1) chronicle almost all of the major Precambrian geologic events in the history of the southern Superior Craton. The oldest rocks are part of a locally gneissic quartz monzonite complex, the Puritan Batholith, with an igneous Rb-Sr age of 2710+140 Ma (Sims et al., 1977).
Authors
Marcia Bjørnerud, William F. Cannon
Environmental baseline study of the Huron River Watershed, Baraga and Marquette Counties, Michigan
This report summarizes results of a study to establish water-quality and geochemical baseline conditions within a small watershed in the Lake Superior region. In 2008, the U.S. Geological Survey (USGS) completed a survey of water-quality parameters and soil and streambed sediment geochemistry of the 83 mi2 Huron River Watershed in the Upper Peninsula of Michigan. Streamflow was measured and water-
Authors
Laurel G. Woodruff, Thomas L. Weaver, William F. Cannon
Immediate and long-term fire effects on total mercury in forests soils of northeastern Minnesota
Within the Boundary Waters Canoe Area Wilderness in northeastern Minnesota, soils were collected from 116 sites in areas of primarily virgin forest with fire-origin stand years (year of last recognizable stand-killing wildfire) that range from the 1759 to 1976. Median concentrations for total mercury in soils for this span of 217 years range from 0.28 ± 0.088 ppm (1759) to 0.09 ± 0.047 ppm (1976)
Authors
Laurel G. Woodruff, William F. Cannon
The Sudbury impact layer in the paleoproterozoiciron ranges of northern Michigan, USA
A layer of breccia that contains fragments of impact ejecta has been found at 10 sites in the Paleoproterozoic iron ranges of northern Michigan, in the Lake Superior region of the United States. Radiometric age constraints from events predating and postdating deposition of the breccia are ca. 1875 Ma and 1830 Ma. The major bolide impact that occurred at 1850 Ma at Sudbury, Ontario, 500–700 km east
Authors
W. F. Cannon, K. J. Schulz, J. Wright Horton, David A. King
Total mercury, methylmercury, and selected elements in soils of the Fishing Brook watershed, Hamilton County, New York, and the McTier Creek watershed, Aiken County, South Carolina, 2008
Mercury is an element of on-going concern for human and aquatic health. Mercury sequestered in upland and wetland soils represents a source that may contribute to mercury contamination in sensitive ecosystems. An improved understanding of mercury cycling in stream ecosystems requires identification and quantification of mercury speciation and transport dynamics in upland and wetland soils within a
Authors
Laurel G. Woodruff, William F. Cannon, Christopher D. Knightes, Francis H. Chapelle, Paul M. Bradley, Douglas A. Burns, Mark E. Brigham, Mark A. Lowery
Impact of wildfire on levels of mercury in forested watershed systems - Voyageurs National Park, Minnesota
Atmospheric deposition of mercury to remote lakes in mid-continental and eastern North America has increased approximately threefold since the mid-1800s (Swain and others, 1992; Fitzgerald and others, 1998; Engstrom and others, 2007). As a result, concerns for human and wildlife health related to mercury contamination have become widespread. Despite an apparent recent decline in atmospheric deposi
Authors
Laurel G. Woodruff, Mark B. Sandheinrich, Mark E. Brigham, William F. Cannon
Pilot studies for the North American Soil Geochemical Landscapes Project - Site selection, sampling protocols, analytical methods, and quality control protocols
In 2004, the US Geological Survey (USGS) and the Geological Survey of Canada sampled and chemically analyzed soils along two transects across Canada and the USA in preparation for a planned soil geochemical survey of North America. This effort was a pilot study to test and refine sampling protocols, analytical methods, quality control protocols, and field logistics for the continental survey. A to
Authors
D. B. Smith, L. G. Woodruff, R. M. O'Leary, W. F. Cannon, R. G. Garrett, J. E. Kilburn, M. B. Goldhaber
Science and Products
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Filter Total Items: 15
Bedrock geologic map of the southern part of the Diorite and Champion 7 1/2 minute quadrangles, Marquette County, Michigan
This map illustrates the bedrock geology of part of the Marquette iron range in the Diorite and Champion 7 ½-minute quadrangles. The area includes part of the Marquette trough, a synclinorium containing rocks of the Marquette Range Supergroup (Precambrian X) and older Precambrian W basement gneiss. Among the Precambrian X rocks is the economically important banded iron-formation, and the oldest roBedrock geologic map of the Republic quadrangle, Marquette County, Michigan
No abstract available. - Publications
Filter Total Items: 108
Mercury in the soil of two contrasting watersheds in the eastern United States
Soil represents the largest store of mercury (Hg) in terrestrial ecosystems, and further study of the factors associated with soil Hg storage is needed to address concerns about the magnitude and persistence of global environmental Hg bioaccumulation. To address this need, we compared total Hg and methyl Hg concentrations and stores in the soil of different landscapes in two watersheds in differenAuthorsDouglas A. Burns, Laurel G. Woodruff, Paul M. Bradley, William F. CannonGeochemical and mineralogical data for soils of the conterminous United States
In 2007, the U.S. Geological Survey initiated a low-density (1 site per 1,600 square kilometers, 4,857 sites) geochemical and mineralogical survey of soils of the conterminous United States as part of the North American Soil Geochemical Landscapes Project. Sampling and analytical protocols were developed at a workshop in 2003, and pilot studies were conducted from 2004 to 2007 to test and refine tAuthorsDavid B. Smith, William F. Cannon, Laurel G. Woodruff, Federico Solano, James E. Kilburn, David L. FeyHistory and progress of the North American Soil Geochemical Landscapes Project, 2001-2010
In 2007, the U.S. Geological Survey, the Geological Survey of Canada, and the Mexican Geological Survey initiated a low-density (1 site per 1600 km2, 13323 sites) geochemical and mineralogical survey of North American soils (North American Soil Geochemical Landscapes Project). Sampling and analytical protocols were developed at a series of workshops in 20032004 and pilot studies were conducted froAuthorsDavid B. Smith, William F. Cannon, Laurel G. Woodruff, Francisco Moreira Rivera, Andrew N. Rencz, Robert G. GarrettA national-scale geochemical and mineralogical survey of soils of the conterminous United States
In 2007, the US Geological Survey initiated a low-density (1 site per 1600 km2, c. 4800 sites) geochemical and mineralogical survey of soils of the conterminous USA. The ideal sampling protocol at each site includes a sample from 0–5 cm depth, a composite of the soil A horizon, and a sample from the soil C horizon. The <2-mm fraction of each sample is analyzed for Al, Ca, Fe, K, Mg, Na, S, Ti, Ag,AuthorsDavid B. Smith, William F. Cannon, Laurel G. WoodruffGeology of the Montreal River Monocline (Field trip guidebook)
No abstract available.AuthorsWilliam F. CannonMidcontinent microcosm: Geology of the Atkins lake - Marengo falls area (Field trip 2)
Archean and Proterozoic rocks exposed over about 16km2 between Atkins Lake and Coffee Lake in southeastern Bayfield County (Fig. 1) chronicle almost all of the major Precambrian geologic events in the history of the southern Superior Craton. The oldest rocks are part of a locally gneissic quartz monzonite complex, the Puritan Batholith, with an igneous Rb-Sr age of 2710+140 Ma (Sims et al., 1977).AuthorsMarcia Bjørnerud, William F. CannonEnvironmental baseline study of the Huron River Watershed, Baraga and Marquette Counties, Michigan
This report summarizes results of a study to establish water-quality and geochemical baseline conditions within a small watershed in the Lake Superior region. In 2008, the U.S. Geological Survey (USGS) completed a survey of water-quality parameters and soil and streambed sediment geochemistry of the 83 mi2 Huron River Watershed in the Upper Peninsula of Michigan. Streamflow was measured and water-AuthorsLaurel G. Woodruff, Thomas L. Weaver, William F. CannonImmediate and long-term fire effects on total mercury in forests soils of northeastern Minnesota
Within the Boundary Waters Canoe Area Wilderness in northeastern Minnesota, soils were collected from 116 sites in areas of primarily virgin forest with fire-origin stand years (year of last recognizable stand-killing wildfire) that range from the 1759 to 1976. Median concentrations for total mercury in soils for this span of 217 years range from 0.28 ± 0.088 ppm (1759) to 0.09 ± 0.047 ppm (1976)AuthorsLaurel G. Woodruff, William F. CannonThe Sudbury impact layer in the paleoproterozoiciron ranges of northern Michigan, USA
A layer of breccia that contains fragments of impact ejecta has been found at 10 sites in the Paleoproterozoic iron ranges of northern Michigan, in the Lake Superior region of the United States. Radiometric age constraints from events predating and postdating deposition of the breccia are ca. 1875 Ma and 1830 Ma. The major bolide impact that occurred at 1850 Ma at Sudbury, Ontario, 500–700 km eastAuthorsW. F. Cannon, K. J. Schulz, J. Wright Horton, David A. KingTotal mercury, methylmercury, and selected elements in soils of the Fishing Brook watershed, Hamilton County, New York, and the McTier Creek watershed, Aiken County, South Carolina, 2008
Mercury is an element of on-going concern for human and aquatic health. Mercury sequestered in upland and wetland soils represents a source that may contribute to mercury contamination in sensitive ecosystems. An improved understanding of mercury cycling in stream ecosystems requires identification and quantification of mercury speciation and transport dynamics in upland and wetland soils within aAuthorsLaurel G. Woodruff, William F. Cannon, Christopher D. Knightes, Francis H. Chapelle, Paul M. Bradley, Douglas A. Burns, Mark E. Brigham, Mark A. LoweryImpact of wildfire on levels of mercury in forested watershed systems - Voyageurs National Park, Minnesota
Atmospheric deposition of mercury to remote lakes in mid-continental and eastern North America has increased approximately threefold since the mid-1800s (Swain and others, 1992; Fitzgerald and others, 1998; Engstrom and others, 2007). As a result, concerns for human and wildlife health related to mercury contamination have become widespread. Despite an apparent recent decline in atmospheric deposiAuthorsLaurel G. Woodruff, Mark B. Sandheinrich, Mark E. Brigham, William F. CannonPilot studies for the North American Soil Geochemical Landscapes Project - Site selection, sampling protocols, analytical methods, and quality control protocols
In 2004, the US Geological Survey (USGS) and the Geological Survey of Canada sampled and chemically analyzed soils along two transects across Canada and the USA in preparation for a planned soil geochemical survey of North America. This effort was a pilot study to test and refine sampling protocols, analytical methods, quality control protocols, and field logistics for the continental survey. A toAuthorsD. B. Smith, L. G. Woodruff, R. M. O'Leary, W. F. Cannon, R. G. Garrett, J. E. Kilburn, M. B. Goldhaber