Drenth, Benjamin J.

About the author

ORCID: 0000-0002-3954-8124
Aeromagnetic surveying, Aeroradiometric surveying, Aluminum, Bedrock geologic units, Bouguer anomaly, Bulk density, Carbon, Cerium, Cobalt, Copper, Critical minerals, Datasets, Dysprosium, Earthquakes, Economic geology, Electromagnetic surveying, Erbium, Europium, Free-air anomaly, Gadolinium, Geologic contacts, Geologic history, Geologic maps, Geologic structure, Geology, Geophysics, Geospatial analysis, Geospatial datasets, Geothermal resources, Gold, Gravimeter measurement, Gravitational field (earth), Groundwater flow, Hazards, Holmium, Igneous rocks, Interagency programs, Iridium, Isostatic anomaly, Lanthanide series elements, Lanthanum, Lithium, Lutetium, Magnetic field (earth), Magnetic susceptibility, Magnetic susceptibility analysis, Magnetometer measurement, Mathematical modeling, Mathematical simulation, Metallic mineral resources, Metamorphic rocks, Molybdenum, Multispectral imaging, Natural resource assessment, Natural resource exploration, Navigational data, Neodymium, Niobium, Osmium, Palladium, Partnerships, Platinum, Plutonic rocks, Porosity, Praseodymium, Promethium, Rare earth elements, Remanent magnetism, Resistivity, Rhodium, Rocks and deposits, Ruthenium, Samarium, Sand deposits, Scandium, Sedimentary rocks, Silver, Structural geology, Study areas, Surficial geologic units, Tantalum, Tectonic processes, Terbium, Thulium, Titanium, Tungsten, Visible light imaging, Volcanic rocks, Ytterbium, Yttrium, Dunes, Mine sites, Mineral deposit areas, Parks, Porphyry, Copper, Geothermal, GeoTIFF, Geosoft database (binary), Geosoft grid format, Grid exchange format, HTML (general), KML, Microsoft Excel format, Portable Document Format, TIFF, Columnar text, Comma-delimited text, File geodatabase (Esri), Shapefile, Tab-delimited text, Rare earths

Digital data from the Great Sand Dunes and Poncha Springs aeromagnetic surveys, south-central Colorado

Two high-resolution aeromagnetic surveys in south-central Colorado compiled to assess the subsurface geologic framework of the San Luis basin for ground-water flow model construction, and to map concealed faults potentially related to geothermal resources

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Digital data from the northeast Tusas Mountains aeromagnetic survey, north-central New Mexico

Flight-line aeromagnetic observations with gridded data derived from them.

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Notes on interpretation of geophysical data over areas of mineralization in Afghanistan

Afghanistan has the potential to contain substantial metallic mineral resources. Although valuable mineral deposits have been identified, much of the country’s potential remains unknown. Geophysical surveys, particularly those conducted from airborne pl

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Digital data from the Great Sand Dunes airborne gravity gradient survey, south-central Colorado

Flight-line data and gravity grids with documentation.

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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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Principal facts of gravity data in the southern San Luis Basin, northern New Mexico

Gravity data were collected from 2006 through 2015 to assist in mapping subsurface geology in this area. Includes principal facts for 567 new gravity stations that were acquired to fill in gaps in previously-available gravity data. Data are provided in CSV format.

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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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Airborne Magnetic Total-Field Survey, Iron Mountain-Menominee Region, Michigan-Wisconsin, USA

Airborne magnetic survey data collected from this area to better understand the lithology and structure of exposed and concealed Precambrian rocks in support of mineral resource investigations. Results are provided in Geosoft database, grid exchange format, GeoTiff, and CSV.

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High-resolution aeromagnetic survey to image shallow faults, Poncha Springs and vicinity, Chaffee county, Colorado

Survey to map concealed faults that may be related to geothermal resources, such as hot springs; data given are surface locations of faults interpreted from the survey.

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Digitized data from ground geophysical surveys in Afghanistan

Surveys originally carried out by Soviet geophysicists from 1972 through 1974 were digitized. Georeferencing was problematic as were some of the measured characteristics; we explain what we did and how we have understood these data.

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Physical properties by geologic unit in the southern San Luis basin, New Mexico

Rock density and magnetic susceptibility measurements of samples drawn from this area. Data are provided in CSV format.

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Principal facts of regional gravity data in northeast Iowa

Gravity data collected 2016 through 2018 at 1080 locations to assist in mapping subsurface geology in northeastern Iowa. Data are provided in CSV format.

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Airborne magnetic and radiometric survey of the southeast Mojave Desert, California and Nevada

Digital flight-line aeromagnetic and aeroradiometric survey data over of the southeast Mojave Desert, parts of California and Nevada. Data files are provided in CSV as well as Geosoft binary database and grid exchange format (GXF).

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Density and magnetic susceptibility measurements on Precambrian rocks in the Iron Mountain-Menominee region, Michigan-Wisconsin

Rock physical property measurements to help understand causative sources of gravity and magnetic survey anomalies in this area. Data are provided in CSV format.

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Principal facts of regional gravity data in the central Upper Peninsula, Michigan, and northeastern Wisconsin

Gravity data collected from 2016 through 2019 to assist in mapping surface and subsurface geology in this area. Data are provided in CSV and shapefile formats.

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Digital data from the Questa-San Luis and Santa Fe East helicopter magnetic surveys in Santa Fe and Taos Counties, New Mexico, and Costilla County, Colorado

Aeromagnetic data collected during an airborne geophysical survey.

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Digital data from the Taos West aeromagnetic survey in Taos county, New Mexico

Digital data, image files, and text files describing data formats and survey procedures for an aeromagnetic survey covering the southwestern portion of Taos County west of the Town of Taos, New Mexico, conducted in October, 2006

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Identification of mineral resources in Afghanistan-Detecting and mapping resource anomalies in prioritized areas using geophysical and remote sensing (ASTER and HyMap) data

Using geophysical and remote-sensing data, previously unrecognized targets of potential mineralization were identified; this report shows those targets along with the evidence for their potential.

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Porphyry copper assessment of Southeast Asia and Melanesia

This study delineated permissive areas for undiscovered porphyry copper deposits, compiled a database of known deposits and significant prospects, estimated undiscovered deposits within those areas and made probabilistic estimates of their metal content.

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Airborne Geophysical Survey Inventory of the Conterminous United States, Alaska, Hawaii, and Puerto Rico (ver. 3.0, November 2021)

Compilation of airborne geophysical surveys (magnetic, radiometric, and electromagnetic) with links, for each survey to the data, metadata, and preview images. Includes a measure of quality indicating which surveys are likely most useful for investigations of subsurface mineral deposits. Data are provided in Esri file geodatabase, shapefile, and CSV formats.

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Global mineral resource assessment--porphyry copper assessment of Mexico

Includes known resources and permissive tracts with estimates of the number of undiscovered resources likely to be present in the permissive tracts.

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Focus areas for data acquisition for potential domestic resources of 11 critical minerals in the conterminous United States, Hawaii, and Puerto Rico—Aluminum, cobalt, graphite, lithium, niobium, platinum-group elements, rare earth elements, tantalum, titanium, and tungsten

Geographic areas within the US where deposits of certain critical mineral resources might be found. With state agencies and other organizations, USGS intends to conduct studies that will help locate critical mineral resources within these areas.

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Porphyry copper assessment of eastern Australia

Delineated permissive areas for undiscovered porphyry copper deposits, compiled a database of known deposits and significant prospects, estimated undiscovered deposits within those areas and made probabilistic estimates of their metal content.

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Aeromagnetic survey in Afghanistan

Digital files and descriptions of airborne and ground collected magnetic data in Afghanistan

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Airborne gravity survey and ground gravity in Afghanistan

Data release and processing description of airborne and ground gravity data collected over Afghanistan

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Geologic map of Big Bend National Park, Texas

New geologic map to reflect mapping of late Cretaceous to Tertiary clastic sedimentary rocks, park-wide mapping of surficial deposits, and a newly revised volcanic stratigraphy.

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Aeromagnetic surveys in Afghanistan: An updated website for distribution of data

Gridded aeromagnetic anomaly data, along with aeromagnetic observations obtained during 2008.

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GIS and data tables for focus areas for potential domestic nonfuel sources of rare earth elements

Locations of focus areas to be used for planning and collection of geophysical, geological, and topographic (lidar) data pertaining to the study of rare earth element resources in the US.

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