Drenth, Benjamin J.

About the author

U.S. Geological Survey, Central Region, Rocky Mountain area, Geology discipline
Aeromagnetic surveying, Aeroradiometric surveying, Aluminum, Bedrock geologic units, Bouguer anomaly, Carbon, Cerium, Cobalt, Copper, Critical minerals, Dysprosium, Earthquakes, Economic geology, Electromagnetic surveying, Erbium, Europium, 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), Magnetometer measurement, Mathematical modeling, Mathematical simulation, Metallic mineral resources, Molybdenum, Multispectral imaging, Natural resource assessment, Natural resource exploration, Navigational data, Neodymium, Niobium, Osmium, Palladium, Partnerships, Platinum, Plutonic rocks, Praseodymium, Promethium, Rare earth elements, Remanent magnetism, Resistivity, Rhodium, Rocks and deposits, Ruthenium, Samarium, Sand deposits, Scandium, 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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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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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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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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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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