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Collection includes cores extracted over decades by mineral exploration firms as they completed their Maine work or otherwise released their data, covering both public and private lands that were the subject of mineral exploration. These records represent the best public collection of the major mineral exploration efforts of the 1960s-1980s. This collection of 595 scanned core records is accessible through a Google Earth application. Please contact the Maine Geological Survey to discuss access to the collection.
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Records in this collection are classified into one of four categories that best characterizes the data contained within the borehole record. The classifications are: Geotechnical: Boreholes and pits created with the intent to gain a detailed understanding of the subsurface lithology and soil or rock properties therein. These records have additional data beyond lithologic descriptions including penetrometer resistance, shear and strength tests, density measurements, etc. Lithologic borings: Boreholes are drill solely for the purpose of identifying subsurface lithology. Material testing techniques were not used (or the results are not provided) to allow for a more detailed understanding of subsurface material properties....
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Compilation of rotary sonic drill cores with magnetic susceptibility measurements collected by Minnesota Geological Survey Quaternary geologists. The full dataset is available upon request and includes 1) magnetic susceptibility profiles for each rotary sonic core, 2) named unit averages and standard deviations for each county, and 3) named unit averages and standard deviations for all data.
GIS files for the 1:150,000-scale Geologic Map of Gunnison County included in Colorado Geological Survey RS-37 Geology and Mineral Resources of Gunnison County, Colorado.
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The dataset consists of more than 3,000 sites in Iowa that contain detailed, regional alluvial stratigraphic nomenclature. The dataset is comprised of boring, dug pit, and cutbank descriptions predominately from the Iowa Office of the State Archaeologist, but also from other alluvial studies, including those conducted by the IGS. The majority of these descriptions were first published in documents from the 1990s, but also included data collected in the 1970s and 1980s.
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Dataset contains point data describing the results of 1-channel and 12-channel seismic refraction studies mapped at a scale of 1:24,000, from the Maine Geological Survey. The results include the depth to the water and depth to the bedrock. Links are also provided, when available, to the profile graphs for the seismic line.
Field notebooks of the New Jersey Geological Survey Geologists and non NJGWS Geologists including Paul Albrecht, Haig Kasabach, Joseph Miller, Jim Charlesworth, Richard Dalton, George Bonino, Ron Parker, Hugh Houghton.
Soil Sample Analysis Results Sheets from NJ Zinc Company Zinc Reconnaissance and Soil Sample Locations plotted on USGS Quadrangle Maps.
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Minnesota Geological Survey, in cooperation with industry, sampled the State of Minnesota and adjacent regions for till geochemistry and indicator minerals at a 30-km spacing during summer 2004. Within target cells, each a quarter-degree latitude by a half-degree longitude, till from between about 1 and 2 m depth was sampled by filling a 15 liter plastic pail. At a few sites, vertical profiles were collected. In addition, three transects to the north were sampled, to help identify sediments derived by long-distance glacial transport, to obtain reference samples from the Thompson nickel belt, and also to extend sampling to the limit of Hudson Bay-derived carbonate-bearing sediments, to permit comparison to Minnesota...
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All sediment samples from auger holes, outcrops, and cores are processed to determine texture. The 1-2 mm coarse sand fraction is packaged separately, and about half of these fractions are categorized lithologically by a glacial geologist. The data are recorded on paper data sheets and in a database.
These web map applications make available the georeferenced digital images of the bedrock and surficial quadrangle maps published by the Maine Geological Survey at the 1:24,000, 1:62,500, 1:100,000, 1:250,000 and 1:500,000 scales.
The USGS Astrogeology Science Center is a national resource for the integration of planetary geoscience, cartography, and remote sensing.
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Hand specimens of rocks collected as a part of field work conducted primarily by present and former WGNHS staff members. Samples date from the early 20th century to the 1990s and were collected throughout the state. Many of the samples are described in the historical field notebook collection, and relationships between the samples and the field notebooks have been established and captured in identifiers. Locations for samples were taken from field notes, maps, and accession lists. There are approximately 5,700 hand samples in this collection.
These are collections managed by the USGS Geology, Geophysics, and Geochemistry Science Center (GGGSC). GGGSC is based in Denver, Colorado and conducts scientific investigations that answer societally relevant questions with a focus on the Mineral Resources Program. The overall mission of the Geology, Geophysics, and Geochemistry Science Center (GGGSC) is to apply expertise in geology, geophysics, and geochemistry to interdisciplinary efforts supporting the USGS mission to address the Nation’s important earth science issues, with emphasis on providing unbiased research and information on mineral resources. Our vision is to make our geoscience knowledge public, and to contribute, in a manner that is useful for formulating...
An FY17 NGGDPP grant funded a demolition project to rescue of 1952+ core boxes from a collapsed building, the Cary Annex. The OTHER Undocumented Core Collections (OUCC) defined herein helps compile the interim results of an inventory of 781 of the 1952+ rescued boxes, funded by an FY21 NGGDPP grant. As a result of the inventory, 277 core boxes were identified that are associated with 63 new, previously undocumented boreholes. All of the boxes were damaged and likely need reboxing; 85 were reboxed by NCGS staff. Some of the core boxes have partial losses of core lengths; some material is weathered in situ (in the box). These collections include HARD ROCK and TRIASSIC geologic core samples. Coordinate data is not...
The U.S. Geological Survey (USGS) Soil Sample Archive is a database of information describing soil and sediment samples collected in support of USGS science. Samples in the archive have been registered with International Generic Sample Numbers, relabeled with bar-coded sample labels, and repacked in containers for long-term preservation. Details of sample collection location, collection date, associated datasets, mass of remaining sample, storage locations, and other relevant information are tabulated here so that interested parties may identify associated datasets and search, sort, and gain access to archived samples.
This database was compiled using the National Index of Borehole Information template. Currently, there is a Borehole Location tab, a TF_PotashTops tab that includes gross and net thicknesses of potash from each well, and a P_ThinSection tab with links to view thin section scans, and columns with indications of whether we have cores, core analysis, or lithographic logs strips for each borehole.
map background search result map search result map Collection of boreholes and well logs from Washington State Collection of Geochemical Samples from Minnesota Collection of Sediment Properties from Minnesota Rock hand specimens from Wisconsin Collection of Maine Web Map Applications and Datasets Maine Seismic Refraction Profiles ArcGIS Online Feature Layer Field Notes and Maps from various retired NJGWS geologists Collection of Margaret Kaeding Field Maps Collection of Hugh Houghton, Margaret Kaeding Field Notes Collection of Geochemical Analysis, New Jersey Zinc Company, Sussex and Morris Counties, New Jersey Collection of Magnetic Susceptibility Measurements from Minnesota IGS sites with alluvial stratigraphic nomenclature Field Notes and Maps from various retired NJGWS geologists Collection of Margaret Kaeding Field Maps Collection of Hugh Houghton, Margaret Kaeding Field Notes Collection of Geochemical Analysis, New Jersey Zinc Company, Sussex and Morris Counties, New Jersey Maine Seismic Refraction Profiles ArcGIS Online Feature Layer IGS sites with alluvial stratigraphic nomenclature Rock hand specimens from Wisconsin Collection of boreholes and well logs from Washington State Collection of Magnetic Susceptibility Measurements from Minnesota Collection of Geochemical Samples from Minnesota Collection of Sediment Properties from Minnesota