Jeff Wynn, PhD (Former Employee)
Science and Products
Filter Total Items: 50
Geophysical signatures used to constrain geologic mapping, narrowing the search for VMS deposits in southeast Alaska
No abstract available.
Authors
Jeff Wynn, Jon P. Doucette, Susan M. Karl, Anne E. McCafferty, Bruce D. Smith, Peter Bittenbender
A ground electromagnetic survey used to map sulfides and acid sulfate ground waters at the abandoned Cabin Branch Mine, Prince William Forest Park, northern Virginia gold-pyrite belt
INTRODUCTION AND BACKGROUND: Prince William Forest Park is situated at the northeastern end of the Virginia Gold-Pyrite belt northwest of the town of Dumfries, VA. The U. S. Marine Corps Reservation at Quantico borders the park on the west and south, and occupies part of the same watershed. Two abandoned mines are found within the park: the Cabin Branch pyrite mine, a historic source of acid mine
Authors
Jeffrey C. Wynn
Airborne electromagnetics (EM) as a three-dimensional aquifer-mapping tool
The San Pedro River in southeastern Arizona hosts a major migratory bird flyway, and was declared a Riparian Conservation Area by Congress in 1988. Recharge of the adjacent Upper San Pedro Valley aquifer was thought to come primarily from the Huachuca Mountains, but the U. S. Army Garrison of Fort Huachuca and neighboring city of Sierra Vista have been tapping this aquifer for many decades, giving
Authors
Jeff Wynn, Don Pool, Mark Bultman, Mark E. Gettings, Jean Lemieux
An interpretation of the aeromagnetic and gravity data and derivative maps of the Craig and Dixon Entrance 1-degree by 3-degree quadrangles and the western edges of the Ketchikan and Prince Rupert quadrangles, Southeastern Alaska
No abstract available.
Authors
J. C. Wynn, R. P. Kucks, D. J. Grybeck
An interpretation of the 1997 airborne electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona
Executive Summary -- In March of 1997, an airborne electromagnetic (AEM) survey of the Fort Huachuca Military Reservation and immediate surrounds (location map, http://geopubs.wr.usgs.gov/open-file/of99-007-b/index.jpg) was conducted. This survey was sponsored by the U.S. Army and contracted through the Geologic Division of the U.S. Geological Survey (USGS). Data were gathered by Geoterrex-Dighem
Authors
M.W. Bultman, M. E. Gettings, Jeff Wynn
An interpretation of the 1997 airborne electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona
In March of 1997, an airborne electromagnetic (AEM) survey of the Fort Huachuca Military Reservation and immediate surrounds was conducted. This survey was sponsored by the U.S. Army and contracted through the Geologic Division of the U.S. Geological Survey (USGS). Data were gathered by Geoterrex-Dighem Ltd. of Ottawa, Canada. The survey aircraft is surrounded by a coil through which a large curre
Authors
Mark W. Bultman, Mark E. Gettings, Jeff Wynn
An interpretation of the aeromagnetic and gravity data and derivative maps of the Craig and Dixon Entrance 1°x 3° quadrangles and the western edges of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska
The U.S. Geological Survey (USGS) is required by the Alaska National Interest Lands Conservation Act (ANILCA, Public Law 96-487) to survey certain Federal lands to determine their mineral resource potential. As part of continuing studies designed to fulfill this responsibility, geochemical, geological and geophysical surveys of the Craig and Dixon Entrance (CDE) 1°x3° quadrangles in southeastern A
Authors
Jeffrey C. Wynn, R. P. Kucks, D. J. Grybeck
Geology and mineral resource assessment of the Venezuelan Guayana Shield at 1:500,000 scale; a digital representation of maps published by the U.S. Geological Survey
This CD-ROM contains vector-based digital maps of the geology and resource assessment of the Venezuela Guayana Shield originally published as paper maps in 1993 in U. S. Geological Survey Bulletin 2062, at a scale of 1:1 million and revised in 1993-95 as separate maps at a scale of 1:500,000. Although the maps on this disc can be displayed at different scales, they are not intended to be used at a
Authors
Paul G. Schruben, J. C. Wynn, Floyd Gray, D. P. Cox, J.H. Sterwart, W. E. Brooks
A preliminary interpretation of the 1997 airborne electromagnetic (EM) survey over Fort Huachuca, Arizona, and the Upper San Pedro River basin
No abstract available.
Authors
J. C. Wynn, M. E. Gettings
Simple Bouguer gravity anomaly maps of the Venezuelan Guayana Shield, Southeast Venezuela
No abstract available.
Authors
Kevin R. Bond, J. C. Wynn
Lacustrine manganese; a supplement to U.S. Geological Survey Bulletin 1693
No abstract available.
Authors
Keith R. Long, J. C. Wynn, F. Fritz, J. Corbett
Science and Products
Filter Total Items: 50
Geophysical signatures used to constrain geologic mapping, narrowing the search for VMS deposits in southeast Alaska
No abstract available.
Authors
Jeff Wynn, Jon P. Doucette, Susan M. Karl, Anne E. McCafferty, Bruce D. Smith, Peter Bittenbender
A ground electromagnetic survey used to map sulfides and acid sulfate ground waters at the abandoned Cabin Branch Mine, Prince William Forest Park, northern Virginia gold-pyrite belt
INTRODUCTION AND BACKGROUND: Prince William Forest Park is situated at the northeastern end of the Virginia Gold-Pyrite belt northwest of the town of Dumfries, VA. The U. S. Marine Corps Reservation at Quantico borders the park on the west and south, and occupies part of the same watershed. Two abandoned mines are found within the park: the Cabin Branch pyrite mine, a historic source of acid mine
Authors
Jeffrey C. Wynn
Airborne electromagnetics (EM) as a three-dimensional aquifer-mapping tool
The San Pedro River in southeastern Arizona hosts a major migratory bird flyway, and was declared a Riparian Conservation Area by Congress in 1988. Recharge of the adjacent Upper San Pedro Valley aquifer was thought to come primarily from the Huachuca Mountains, but the U. S. Army Garrison of Fort Huachuca and neighboring city of Sierra Vista have been tapping this aquifer for many decades, giving
Authors
Jeff Wynn, Don Pool, Mark Bultman, Mark E. Gettings, Jean Lemieux
An interpretation of the aeromagnetic and gravity data and derivative maps of the Craig and Dixon Entrance 1-degree by 3-degree quadrangles and the western edges of the Ketchikan and Prince Rupert quadrangles, Southeastern Alaska
No abstract available.
Authors
J. C. Wynn, R. P. Kucks, D. J. Grybeck
An interpretation of the 1997 airborne electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona
Executive Summary -- In March of 1997, an airborne electromagnetic (AEM) survey of the Fort Huachuca Military Reservation and immediate surrounds (location map, http://geopubs.wr.usgs.gov/open-file/of99-007-b/index.jpg) was conducted. This survey was sponsored by the U.S. Army and contracted through the Geologic Division of the U.S. Geological Survey (USGS). Data were gathered by Geoterrex-Dighem
Authors
M.W. Bultman, M. E. Gettings, Jeff Wynn
An interpretation of the 1997 airborne electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona
In March of 1997, an airborne electromagnetic (AEM) survey of the Fort Huachuca Military Reservation and immediate surrounds was conducted. This survey was sponsored by the U.S. Army and contracted through the Geologic Division of the U.S. Geological Survey (USGS). Data were gathered by Geoterrex-Dighem Ltd. of Ottawa, Canada. The survey aircraft is surrounded by a coil through which a large curre
Authors
Mark W. Bultman, Mark E. Gettings, Jeff Wynn
An interpretation of the aeromagnetic and gravity data and derivative maps of the Craig and Dixon Entrance 1°x 3° quadrangles and the western edges of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska
The U.S. Geological Survey (USGS) is required by the Alaska National Interest Lands Conservation Act (ANILCA, Public Law 96-487) to survey certain Federal lands to determine their mineral resource potential. As part of continuing studies designed to fulfill this responsibility, geochemical, geological and geophysical surveys of the Craig and Dixon Entrance (CDE) 1°x3° quadrangles in southeastern A
Authors
Jeffrey C. Wynn, R. P. Kucks, D. J. Grybeck
Geology and mineral resource assessment of the Venezuelan Guayana Shield at 1:500,000 scale; a digital representation of maps published by the U.S. Geological Survey
This CD-ROM contains vector-based digital maps of the geology and resource assessment of the Venezuela Guayana Shield originally published as paper maps in 1993 in U. S. Geological Survey Bulletin 2062, at a scale of 1:1 million and revised in 1993-95 as separate maps at a scale of 1:500,000. Although the maps on this disc can be displayed at different scales, they are not intended to be used at a
Authors
Paul G. Schruben, J. C. Wynn, Floyd Gray, D. P. Cox, J.H. Sterwart, W. E. Brooks
A preliminary interpretation of the 1997 airborne electromagnetic (EM) survey over Fort Huachuca, Arizona, and the Upper San Pedro River basin
No abstract available.
Authors
J. C. Wynn, M. E. Gettings
Simple Bouguer gravity anomaly maps of the Venezuelan Guayana Shield, Southeast Venezuela
No abstract available.
Authors
Kevin R. Bond, J. C. Wynn
Lacustrine manganese; a supplement to U.S. Geological Survey Bulletin 1693
No abstract available.
Authors
Keith R. Long, J. C. Wynn, F. Fritz, J. Corbett
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government