Brown, Philip J. II

About the author


High Resolution Aeromagnetic Survey, Villa Grove, Colorado, USA, 2011

Data from a helicopter magnetic survey in this area to understand the nature of aquifers, the potential for geothermal energy resources, the likelihood of seismic hazards, and the geology of the northern Rio Grande rift. Data are provided in GXF grid and CSV formats.

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Audiomagnetotelluric data, Buffalo River watershed, Arkansas, 2017

Audio-magnetotelluric sounding data collected in 2017 in this area to understand geologic structure and lithologic variations.

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Concepts and procedures required for successful reduction of tensor magnetic gradiometer data obtained from an unexploded ordnance detection demonstration at Yuma Proving Grounds, Arizona

Report discussing application of specialized instrumentation for detecting unexploded ordnance.

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Compilation of Alaska gravity data and historical reports

Gravity measured from 1958-2005, with standard gravity reduction calculations applied to correct for latitude, elevation, topography, and isostasy.

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Airborne Magnetic Total-Field Survey, Manchester Region, Iowa, USA

Airborne magnetic survey data collected from this area to understand Precambrian rocks concealed under Paleozoic sedimentary rocks in northeast Iowa. Data are provided in GXF grid and CSV formats. Flight lines are provided in shapefile format.

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Airborne magnetic and radiometric survey over northwest Arkansas, 2019-2020

Digital flight line data for a high-resolution magnetic and radiometric survey over an area of northwest Arkansas. Data files in CSV format, with GeoTiff as well.

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Airborne magnetic and radiometric survey, southeastern Illinois, western Kentucky, and southern Indiana, 2019

Digital flight line data for a high-resolution magnetic and radiometric survey over an area of southeast Illinois, western Kentucky, and southern Indiana. Data are provided in CSV and GeoTiff formats.

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Airborne magnetic survey, Iron Mountain-Chatham region, central Upper Peninsula, Michigan, 2018

Digital flight line data for a high-resolution magnetic survey with line spacing 150 meters and nominal terrain clearance 80 meters over most of the study area. Data are provided as Geosoft databases and grids. Data over two small areas (less than 1 sq km combined) were redacted because those areas include multiple tracts of Native American lands.

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Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018

Audiomagnetotelluric sounding data collected in 2018 in this area to understand subsurface geologic structure.

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Audiomagnetotelluric survey to characterize the Sunnyside porphyry copper system in the Patagonia Mountains, Arizona

Audiomagnetotelluric (AMT) sounding data collected in 2008 in this area in support of assessments of concealed mineral resources.

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Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019

Audiomagnetotelluric station locations and data to characterize subsurface rock properties important for understanding surface water and groundwater quality issues, and also to improve knowledge of deep geologic structures that may have been conduits for hydrothermal fluids that formed mineral deposits.

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Magnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019

Magnetotelluric station locations and data intended to help to characterize subsurface rock properties important for understanding surface water and groundwater quality issues, and also to improve knowledge of deep geologic structures that may have been conduits for hydrothermal fluids that formed mineral deposits.

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Spatial data associated with tungsten skarn resource assessment of the Northern Rocky Mountains, Montana and Idaho

Resource assessment and supporting data including permissive tracts, mineral sites in the study area, geologic units, geologic maps, stream sediment geochemistry, whole rock chemistry, airborne radiometric data, and lower frequency content EMAG2 data. Data are provided in Esri file geodatabase, shapefile, and CSV formats.

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Qualitative Mineral Potential Map of Tungsten Skarn in the Yukon-Tanana Uplands, Eastern Alaska, USA, 2021

GIS data that map potential for tungsten skarn mineralization in permissive tracts in the Yukon-Tanana Uplands, Eastern Alaska, along with tables listing keywords and procedures used to produce the permissive tracts and score them for mineral potential. Data are provided in Esri file geodatabase, shapefile, KML and CSV formats.

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Geophysical and geochemical data from the area of the Pebble Cu-Au-Mo porphyry deposit, southwestern Alaska: Contributions to assessment techniques for concealed mineral resources

Uninterpreted geophysical measurements and geochemical and mineralogical analytical data from samples collected during the summer field seasons from 2007 to 2010. Data are available in a single Geographic Information System (GIS) database.

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