Philip J. Brown
A Geophysicist having over 25 years experience with geophysical operations, multidisciplinary geophysical data processing, joint earth-science data inversion and interpretation, software development and documentation, geodetic positioning, GIS, data base architecture, as well as engineering and repairing acquisition hardware. Currently develop and administer cloud- and web-based solutions fo
- Geophysical and petrophysical technical expertise regarding ground-based, offshore, airborne, wire-line, and Measurement-While-Drilling (MWD) exploration tools utilizing multi-component (full tensor) -seismic, -potential-field, -electrical, and nuclear methods.
- Joint inversion and geologic interpretation of geophysical and petrophysical multi-dimensional data employing novel non-linear statistical methods and data-driven techniques.
- Interactive development environment (IDE) experience with Microsoft Visual Studio (VS), Eclipse, Jupyter, VS Code, and KDevelop.
- Data Base, GIS Development, and Content Management using C++, Visual Basic, JavaScript, Python, MySQL, phpMyAdmin, Joomla, WordPress, Drupal, ArcGIS Online, Oasis montaj, JSON, XML, HTML, CSS, Google Application Scripting (GAS), ScienceBase API, USGS Publications Warehouse API, USGS Metadata Wizard API, USGS Active Directory API, and Amazon Web Services (AWS).
- Earth Science related, object-oriented software development using GitHub, C++, Visual Basic, JavaScript, Python, Fortran, R, IDL, SQL, PHP, HTML, XML, CSS, DOS Script, LabView, MatLab, and Geosoft Oasis montaj GX/OMS.
- Light-Client and Web Development using HTML, PHP, JavaScript, CSS, XML, Joomla, WordPress, Drupal, USGS CMS, JSON, and Adobe Creative Design Suite.
- Computing platform application development for 32- and 64- bit MS Windows NT, 2000, 2002, XP, 7 and 10; Cygwin; Macintosh OS-X; Linux Gnome, K, and Ubuntu Desktops; Unix X-Windows; NEXT; DOS; VMS/VAX; as well as various proprietary and/or hand-held systems including real-time computing hardware used for data acquisition.
- Land Surveying, Down-Hole Directional Surveying, and Real-Time Kinematic (RTK) Differential Global Positioning Systems (GPS). Blue Marble type visualizations.
Science and Products
Filter Total Items: 27
Airborne magnetic survey over northeast North Dakota, 2000-2001 Airborne magnetic survey over northeast North Dakota, 2000-2001
This data release is a re-release of an airborne geophysical survey carried out for the United States Geological Survey (USGS) by Spectra Exploration Geoscience Corp., from November 2000 to February 2001. The purpose of this survey was to acquire high-resolution, high-sensitivity aeromagnetic data over an area in northeast and north-central North Dakota and assess the area for anomalies...
Spatial data associated with tungsten skarn resource assessment of the Northern Rocky Mountains, Montana and Idaho Spatial data associated with tungsten skarn resource assessment of the Northern Rocky Mountains, Montana and Idaho
A mineral resource assessment was performed by the U.S. Geological Survey (USGS) to assess the potential of undiscovered skarn-hosted tungsten resources in the Northern Rocky Mountain region of eastern Idaho and western Montana. This region has seen moderate tungsten trioxide (WO3) production in the past from a variety of mineralization styles including skarn, vein and replacement, and...
Qualitative Mineral Potential Map of Tungsten Skarn in the Yukon-Tanana Uplands, Eastern Alaska, USA, 2021 Qualitative Mineral Potential Map of Tungsten Skarn in the Yukon-Tanana Uplands, Eastern Alaska, USA, 2021
The data release includes 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.The GIS data are encapsulated in a file geodatabase called "AK_Wskarn_tract.gdb" and are also available in the...
Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019 Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019
This dataset includes audiomagnetotelluric (AMT) sounding data collected in July 2019 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 26 sites along five profiles ranging from 2 to...
Magnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019 Magnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019
This dataset includes magnetotelluric (MT) sounding data collected in July 2019 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and audiomagnetotellurics, the USGS collected MT data at 24 sites along five profiles ranging from 2 to 5...
Airborne magnetic survey, Iron Mountain-Chatham region, central Upper Peninsula, Michigan, 2018 Airborne magnetic survey, Iron Mountain-Chatham region, central Upper Peninsula, Michigan, 2018
This publication provides digital flight line data for a high-resolution magnetic survey over an area of the central Upper Peninsula of Michigan. The survey area lies approximately between the towns of Iron Mountain and Chatham. Data for this survey were collected by EON Geosciences under contract with the USGS using a fixed wing aircraft with a magnetometer mounted in the tail stinger...
Airborne magnetic and radiometric survey over northwest Arkansas, 2019-2020 Airborne magnetic and radiometric survey over northwest Arkansas, 2019-2020
This publication provides digital flight line data for a high-resolution magnetic and radiometric survey over an area of northwest Arkansas. The airborne geophysical survey was jointly funded by the USGS National Cooperative Geologic Mapping Program and the Earth Mapping Resource Initiative and was designed to meet the complimentary needs related to geologic mapping and mineral resource...
Audiomagnetotelluric survey to characterize the Sunnyside porphyry copper system in the Patagonia Mountains, Arizona Audiomagnetotelluric survey to characterize the Sunnyside porphyry copper system in the Patagonia Mountains, Arizona
This dataset includes audiomagnetotelluric (AMT) sounding data collected in 2008 in and near the Patagonia Mountains of southern Arizona. The U.S. Geological Survey (USGS) conducted a series of multidisciplinary studies as part of the Assessment Techniques for Concealed Mineral Resources project funded by the USGS Minerals Resources Program in cooperation with the U.S. Forest Service...
Airborne magnetic and radiometric survey, southeastern Illinois, western Kentucky, and southern Indiana, 2019 Airborne magnetic and radiometric survey, southeastern Illinois, western Kentucky, and southern Indiana, 2019
Note: this data release has been superseded by version 2.0, available here: https://doi.org/10.5066/P14PJFWS. This publication provides digital flight line data for a high-resolution magnetic and radiometric survey over an area of southeast Illinois, western Kentucky, and southern Indiana. The survey includes airborne geophysical data collected as part of the U.S. Geological Survey (USGS...
High Resolution Aeromagnetic Survey, Villa Grove, Colorado, USA, 2011 High Resolution Aeromagnetic Survey, Villa Grove, Colorado, USA, 2011
This data release includes data collected from the Villa Grove helicopter magnetic survey in northern San Luis Valley and Poncha Pass region in south-central Colorado, USA. The survey area extends over the northern part of Great Sand Dunes National Park, Poncha Pass and vicinity, and into the southern end of the Upper Arkansas Valley. It includes the communities of Crestone, Villa Grove...
Audiomagnetotelluric data, Buffalo River watershed, Arkansas, 2017 Audiomagnetotelluric data, Buffalo River watershed, Arkansas, 2017
This dataset includes the locations for audio-magnetotelluric (AMT) sounding data collected in August 2017 in the Buffalo River watershed of northern Arkansas by the U.S. Geological Survey (USGS). The sites were mostly alongside Osage Creek and its intermittent tributaries. Along with geologic mapping, the USGS used AMT data at 6 sites along a southwest-northeast profile of about 7...
Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018 Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018
This data release includes audiomagnetotelluric (AMT) sounding data collected in July 2018 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 24 sites along four profiles ranging from...
Filter Total Items: 21
Reducing tensor magnetic gradiometer data for unexploded ordnance detection Reducing tensor magnetic gradiometer data for unexploded ordnance detection
We performed a survey to demonstrate the effectiveness of a prototype tensor magnetic gradiometer system (TMGS) for detection of buried unexploded ordnance (UXO). In order to achieve a useful result, we designed a data-reduction procedure that resulted in a realistic magnetic gradient tensor and devised a simple way of viewing complicated tensor data, not only to assess the validity of...
Authors
Robert Bracken, Philip J. Brown
Aeromagnetic surveys in Yukon Flats Alaska, a website for the distribution of data Aeromagnetic surveys in Yukon Flats Alaska, a website for the distribution of data
No abstract available.
Authors
Philip J. Brown
Directional borehole radar tests of an oil injection experiment at the Colorado School of Mines, Golden, Colorado Directional borehole radar tests of an oil injection experiment at the Colorado School of Mines, Golden, Colorado
In October 2001, the U.S. Geological Survey conducted borehole radar surveys of an oil injection experiment at the Colorado School of Mines (CSM), in Golden Colorado using the prototype U.S. Geological Survey (USGS)-developed directional borehole radar system (DBOR). A explanation of the system can be found in Wright and others (2001). The USGS was invited to the CSM to deploy the...
Authors
Jared D. Abraham, Craig Moulton, Philip Brown
Advances in directional borehole radar data analysis and visualization Advances in directional borehole radar data analysis and visualization
The U.S. Geological Survey is developing a directional borehole radar (DBOR) tool for mapping fractures, lithologic changes, and underground utility and void detection. An important part of the development of the DBOR tool is data analysis and visualization, with the aim of making the software graphical user interface (GUI) intuitive and easy to use. The DBOR software system consists of...
Authors
D.V.G. Smith, P.J. Brown
Evaluation of the geologic and hydrologic factors related to the waste-storage potential of Mesozoic aquifers in the southern part of the Atlantic Coastal Plain, South Carolina and Georgia Evaluation of the geologic and hydrologic factors related to the waste-storage potential of Mesozoic aquifers in the southern part of the Atlantic Coastal Plain, South Carolina and Georgia
The report describes the subsurface distribution of rocks of Cretaceous to Late Jurassic( ) age in the Atlantic Coastal Plain , South Carolina, and Georgia, and examines their potential for deep-well waste storage into th part of the regional sediment mass which lies below the deepest zones containing usable ground waters. For the study, usable ground water is considered to be that which...
Authors
Philip M. Brown, D.L. Brown, M.S. Reid, O. Lloyd
Evaluation of the geologic and hydrologic factors related to the waste-storage potential of Mesozoic aquifers in the southern part of the Atlantic Coastal Plain, South Carolina and Georgia Evaluation of the geologic and hydrologic factors related to the waste-storage potential of Mesozoic aquifers in the southern part of the Atlantic Coastal Plain, South Carolina and Georgia
This report describes the subsurface distribution of rocks of Cretaceous to Late Jurassic(?) age in the Atlantic. Coastal Plain, South Carolina and Georgia, and examines their potential for deep-well waste storage. For mapping purposes a waste-storage "operational unit" is established and defined. It is a sand or sandstone layer, 20 feet or more in thickness, that is immediately overlain...
Authors
Philip M. Brown, D.L. Brown, M.S. Reid, O. Lloyd
Geologic evaluation of waste-storage potential in selected segments of the Mesozoic aquifer system below the zone of fresh water, Atlantic Coastal Plain, North Carolina through New Jersey Geologic evaluation of waste-storage potential in selected segments of the Mesozoic aquifer system below the zone of fresh water, Atlantic Coastal Plain, North Carolina through New Jersey
This report describes the distribution of subsurface environments in the Atlantic Coastal Plain?North Carolina through New Jersey, that are seen to have geologic potential for the storage of toxic waste. The environments described consist of layers of sand or sandstone, 20 feet or more in thickness, that are immediately overlain and underlain by layers of shale or clay, 20 feet or more...
Authors
Philip M. Brown, M.S. Reid
Lower Cretaceous, Jurassic(?), and Triassic Ostracoda from the Atlantic coastal region Lower Cretaceous, Jurassic(?), and Triassic Ostracoda from the Atlantic coastal region
No abstract available.
Authors
Frederick Swain, Philip Brown
Structural and stratigraphic framework, and spatial distribution of permeability of the Atlantic Coastal Plain, North Carolina to New York Structural and stratigraphic framework, and spatial distribution of permeability of the Atlantic Coastal Plain, North Carolina to New York
This report describes and interprets the results of a detailed subsurface mapping program undertaken in that part of the Atlantic Coastal Plain which extends from the South Carolina and North Carolina border through Long Island, N.Y. Data obtained from more than 2,200 wells are analyzed. Seventeen chronostratigraphic units are mapped in the subsurface. They range in age from Jurassic(?)...
Authors
Philip Brown, James Miller, Frederick Swain
Science and Products
Filter Total Items: 27
Airborne magnetic survey over northeast North Dakota, 2000-2001 Airborne magnetic survey over northeast North Dakota, 2000-2001
This data release is a re-release of an airborne geophysical survey carried out for the United States Geological Survey (USGS) by Spectra Exploration Geoscience Corp., from November 2000 to February 2001. The purpose of this survey was to acquire high-resolution, high-sensitivity aeromagnetic data over an area in northeast and north-central North Dakota and assess the area for anomalies...
Spatial data associated with tungsten skarn resource assessment of the Northern Rocky Mountains, Montana and Idaho Spatial data associated with tungsten skarn resource assessment of the Northern Rocky Mountains, Montana and Idaho
A mineral resource assessment was performed by the U.S. Geological Survey (USGS) to assess the potential of undiscovered skarn-hosted tungsten resources in the Northern Rocky Mountain region of eastern Idaho and western Montana. This region has seen moderate tungsten trioxide (WO3) production in the past from a variety of mineralization styles including skarn, vein and replacement, and...
Qualitative Mineral Potential Map of Tungsten Skarn in the Yukon-Tanana Uplands, Eastern Alaska, USA, 2021 Qualitative Mineral Potential Map of Tungsten Skarn in the Yukon-Tanana Uplands, Eastern Alaska, USA, 2021
The data release includes 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.The GIS data are encapsulated in a file geodatabase called "AK_Wskarn_tract.gdb" and are also available in the...
Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019 Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019
This dataset includes audiomagnetotelluric (AMT) sounding data collected in July 2019 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 26 sites along five profiles ranging from 2 to...
Magnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019 Magnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2019
This dataset includes magnetotelluric (MT) sounding data collected in July 2019 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and audiomagnetotellurics, the USGS collected MT data at 24 sites along five profiles ranging from 2 to 5...
Airborne magnetic survey, Iron Mountain-Chatham region, central Upper Peninsula, Michigan, 2018 Airborne magnetic survey, Iron Mountain-Chatham region, central Upper Peninsula, Michigan, 2018
This publication provides digital flight line data for a high-resolution magnetic survey over an area of the central Upper Peninsula of Michigan. The survey area lies approximately between the towns of Iron Mountain and Chatham. Data for this survey were collected by EON Geosciences under contract with the USGS using a fixed wing aircraft with a magnetometer mounted in the tail stinger...
Airborne magnetic and radiometric survey over northwest Arkansas, 2019-2020 Airborne magnetic and radiometric survey over northwest Arkansas, 2019-2020
This publication provides digital flight line data for a high-resolution magnetic and radiometric survey over an area of northwest Arkansas. The airborne geophysical survey was jointly funded by the USGS National Cooperative Geologic Mapping Program and the Earth Mapping Resource Initiative and was designed to meet the complimentary needs related to geologic mapping and mineral resource...
Audiomagnetotelluric survey to characterize the Sunnyside porphyry copper system in the Patagonia Mountains, Arizona Audiomagnetotelluric survey to characterize the Sunnyside porphyry copper system in the Patagonia Mountains, Arizona
This dataset includes audiomagnetotelluric (AMT) sounding data collected in 2008 in and near the Patagonia Mountains of southern Arizona. The U.S. Geological Survey (USGS) conducted a series of multidisciplinary studies as part of the Assessment Techniques for Concealed Mineral Resources project funded by the USGS Minerals Resources Program in cooperation with the U.S. Forest Service...
Airborne magnetic and radiometric survey, southeastern Illinois, western Kentucky, and southern Indiana, 2019 Airborne magnetic and radiometric survey, southeastern Illinois, western Kentucky, and southern Indiana, 2019
Note: this data release has been superseded by version 2.0, available here: https://doi.org/10.5066/P14PJFWS. This publication provides digital flight line data for a high-resolution magnetic and radiometric survey over an area of southeast Illinois, western Kentucky, and southern Indiana. The survey includes airborne geophysical data collected as part of the U.S. Geological Survey (USGS...
High Resolution Aeromagnetic Survey, Villa Grove, Colorado, USA, 2011 High Resolution Aeromagnetic Survey, Villa Grove, Colorado, USA, 2011
This data release includes data collected from the Villa Grove helicopter magnetic survey in northern San Luis Valley and Poncha Pass region in south-central Colorado, USA. The survey area extends over the northern part of Great Sand Dunes National Park, Poncha Pass and vicinity, and into the southern end of the Upper Arkansas Valley. It includes the communities of Crestone, Villa Grove...
Audiomagnetotelluric data, Buffalo River watershed, Arkansas, 2017 Audiomagnetotelluric data, Buffalo River watershed, Arkansas, 2017
This dataset includes the locations for audio-magnetotelluric (AMT) sounding data collected in August 2017 in the Buffalo River watershed of northern Arkansas by the U.S. Geological Survey (USGS). The sites were mostly alongside Osage Creek and its intermittent tributaries. Along with geologic mapping, the USGS used AMT data at 6 sites along a southwest-northeast profile of about 7...
Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018 Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018
This data release includes audiomagnetotelluric (AMT) sounding data collected in July 2018 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 24 sites along four profiles ranging from...
Filter Total Items: 21
Reducing tensor magnetic gradiometer data for unexploded ordnance detection Reducing tensor magnetic gradiometer data for unexploded ordnance detection
We performed a survey to demonstrate the effectiveness of a prototype tensor magnetic gradiometer system (TMGS) for detection of buried unexploded ordnance (UXO). In order to achieve a useful result, we designed a data-reduction procedure that resulted in a realistic magnetic gradient tensor and devised a simple way of viewing complicated tensor data, not only to assess the validity of...
Authors
Robert Bracken, Philip J. Brown
Aeromagnetic surveys in Yukon Flats Alaska, a website for the distribution of data Aeromagnetic surveys in Yukon Flats Alaska, a website for the distribution of data
No abstract available.
Authors
Philip J. Brown
Directional borehole radar tests of an oil injection experiment at the Colorado School of Mines, Golden, Colorado Directional borehole radar tests of an oil injection experiment at the Colorado School of Mines, Golden, Colorado
In October 2001, the U.S. Geological Survey conducted borehole radar surveys of an oil injection experiment at the Colorado School of Mines (CSM), in Golden Colorado using the prototype U.S. Geological Survey (USGS)-developed directional borehole radar system (DBOR). A explanation of the system can be found in Wright and others (2001). The USGS was invited to the CSM to deploy the...
Authors
Jared D. Abraham, Craig Moulton, Philip Brown
Advances in directional borehole radar data analysis and visualization Advances in directional borehole radar data analysis and visualization
The U.S. Geological Survey is developing a directional borehole radar (DBOR) tool for mapping fractures, lithologic changes, and underground utility and void detection. An important part of the development of the DBOR tool is data analysis and visualization, with the aim of making the software graphical user interface (GUI) intuitive and easy to use. The DBOR software system consists of...
Authors
D.V.G. Smith, P.J. Brown
Evaluation of the geologic and hydrologic factors related to the waste-storage potential of Mesozoic aquifers in the southern part of the Atlantic Coastal Plain, South Carolina and Georgia Evaluation of the geologic and hydrologic factors related to the waste-storage potential of Mesozoic aquifers in the southern part of the Atlantic Coastal Plain, South Carolina and Georgia
The report describes the subsurface distribution of rocks of Cretaceous to Late Jurassic( ) age in the Atlantic Coastal Plain , South Carolina, and Georgia, and examines their potential for deep-well waste storage into th part of the regional sediment mass which lies below the deepest zones containing usable ground waters. For the study, usable ground water is considered to be that which...
Authors
Philip M. Brown, D.L. Brown, M.S. Reid, O. Lloyd
Evaluation of the geologic and hydrologic factors related to the waste-storage potential of Mesozoic aquifers in the southern part of the Atlantic Coastal Plain, South Carolina and Georgia Evaluation of the geologic and hydrologic factors related to the waste-storage potential of Mesozoic aquifers in the southern part of the Atlantic Coastal Plain, South Carolina and Georgia
This report describes the subsurface distribution of rocks of Cretaceous to Late Jurassic(?) age in the Atlantic. Coastal Plain, South Carolina and Georgia, and examines their potential for deep-well waste storage. For mapping purposes a waste-storage "operational unit" is established and defined. It is a sand or sandstone layer, 20 feet or more in thickness, that is immediately overlain...
Authors
Philip M. Brown, D.L. Brown, M.S. Reid, O. Lloyd
Geologic evaluation of waste-storage potential in selected segments of the Mesozoic aquifer system below the zone of fresh water, Atlantic Coastal Plain, North Carolina through New Jersey Geologic evaluation of waste-storage potential in selected segments of the Mesozoic aquifer system below the zone of fresh water, Atlantic Coastal Plain, North Carolina through New Jersey
This report describes the distribution of subsurface environments in the Atlantic Coastal Plain?North Carolina through New Jersey, that are seen to have geologic potential for the storage of toxic waste. The environments described consist of layers of sand or sandstone, 20 feet or more in thickness, that are immediately overlain and underlain by layers of shale or clay, 20 feet or more...
Authors
Philip M. Brown, M.S. Reid
Lower Cretaceous, Jurassic(?), and Triassic Ostracoda from the Atlantic coastal region Lower Cretaceous, Jurassic(?), and Triassic Ostracoda from the Atlantic coastal region
No abstract available.
Authors
Frederick Swain, Philip Brown
Structural and stratigraphic framework, and spatial distribution of permeability of the Atlantic Coastal Plain, North Carolina to New York Structural and stratigraphic framework, and spatial distribution of permeability of the Atlantic Coastal Plain, North Carolina to New York
This report describes and interprets the results of a detailed subsurface mapping program undertaken in that part of the Atlantic Coastal Plain which extends from the South Carolina and North Carolina border through Long Island, N.Y. Data obtained from more than 2,200 wells are analyzed. Seventeen chronostratigraphic units are mapped in the subsurface. They range in age from Jurassic(?)...
Authors
Philip Brown, James Miller, Frederick Swain