Geological lines (contacts, faults, linears), geological polygons (rock units and alteration or metamorphism) and geological points (outcrops and structure data) derived from existing reports, 1:25,000 1:50,000 and 1:63,360 scale printed maps, new field mapping and interpretation of aerial photography, remote sensing data and airborne geophysical data. Digital data is available as a seamless layer, with the understanding that it may include unresolved edge-matching issues originating from mapping project boundaries in the source data. The digital data is used to produce the Digital Geological Atlas 1:25,000 Scale map series.

The metadata describe data and maps of the Federal Institute for Geosciences and Natural Resources that have been made available to the public. The metadata can be searched via the BGR geoportal or a CSW interface.

Overview This directory was developed to provide discovery information for anyone looking for publicly accessible repositories that house geological materials in the U.S. and Canada. In addition, this resource is intended to be a tool to facilitate a community of practice. The need for the directory was identified during planning for and follow-up from a drill core repository webinar series in Spring 2020 for public repository curators and staff in the U.S. and Canada hosted by the Minnesota Geological Survey and the Minnesota Department of Natural Resources. Additional supporting sponsors included the U.S. Geological Survey National Geological and Geophysical Data Preservation Program and the Association of American State Geologists Data Preservation Committee. The 10-part webinar series provided overviews of state, provincial, territorial, and national repositories that house drill core, other geoscience materials, and data. When the series concluded a small working group of the participants continued to meet to facilitate the development and production of a directory of repositories that maintain publicly-accessible geological materials throughout the U.S. and Canada. The group used previous directory efforts described in the next section, Summary of Historical Repository Directory Compilation Efforts, as guides for content during development. The working group prepared and compiled responses from a call for repository information and characterization. This directory is planned to be a living resource for the geoscience community with updates every other year to accommodate changes. The updates will facilitated through versioned updates of this data release. Summary of Historical Repository Directory Compilation Efforts 1957 – Sample and Core Repositories of the United States, Alaska, and Canada. Published by AAPG. Committee on Preservation of Samples and Cores. 13 members from industry, academia, and government. 1977 – Well-Sample and Core Repositories of the Unites States and Canada, C.K. Fisher; M.P. Krupa, USGS Open file report 77-567.USGS wanted to update the original index. Includes a map showing core repositories by “State” “University” “Commercial” and “Federal”. Also includes a “Brief Statement of Requirements for the Preservation of Subsurface Material and Data” and referral to state regulations for details on preserved materials. 1984 - Nonprofit Sample and Core Repositories Open to the Public in the United States – USGS Circular 942. James Schmoker, Thomas Michalski, Patricia Worl. The survey was conducted by a questionnaire mailed to repository curators. Information on additions, corrections, and deletions to earlier (1957,1977) directories from state geologists, each state office of the Water Resources Division of the U.S. Geological Survey, additional government agencies and colleagues were also used. 1997 - The National Directory of Geoscience Data Repositories, edited by Nicholas H. Claudy – American Geologic Institute. To prepare the directory, questionnaires were mailed to state geologists, more than 60 geological societies, private-sector data centers selected from oil and gas directories, and to the membership committee of the American Association of Petroleum Geologists, one of AGI's member societies. The directory contains 124 repository listings, organized alphabetically by state. 2002 – National Research Council 2002. Geoscience Data and Collections: National resources in Peril. Washington, D.C.: The National Academies Press 2005 – The National Geological and Geophysical Data Preservation Program (NGGDPP) of the United States Geological Survey (USGS) was established by The Energy Policy Act of 2005, and reauthorized in the Consolidated Appropriations Act, 2021, “to preserve and expose the Nation’s geoscience collections (samples, logs, maps, data) to promote their discovery and use for research and resource development”. The Program provides “technical and financial assistance to state geological surveys and U.S. Department of the Interior (DOI) bureaus” to archive “geological, geophysical, and engineering data, maps, photographs, samples, and other physical specimens”. Metadata records describing the preserved assets are cataloged in the National Digital Catalog (NDC). References American Association of Petroleum Geologists, 1957, Sample and core repositories of the United States, Alaska, and Canada: American Association of Petroleum Geologists, Committee on Preservation of Samples and Cores, 29 p. American Association of Petroleum Geologists, 2018, US Geological Sample and Data Repositories: American Association of Petroleum Geologists, Preservation of Geoscience Data Committee, Unpublished, (Contact: AAPG Preservation of Geoscience Data Committee) American Geological Institute, 1997, National Geoscience Data Repository System, Phase II. Final report, January 30, 1995--January 28, 1997. United States. https://doi.org/10.2172/598388 American Geological Institute, 1997, National Directory of Geoscience Data Repositories, Claudy, N. H., (ed.), 91pp. Claudy N., Stevens D., 1997, AGI Publishes first edition of national directory of geoscience data repositories. American Geological Institute Spotlight, https://www.agiweb.org/news/datarep2.html Consolidated Appropriations Act, 2021 (Public Law 116-260, Sec.7002) Davidson, E. D., Jr., 1981, A look at core and sample libraries: Bureau of Economic Geology, The University of Texas at Austin, 4 p. and Appendix. Deep Carbon Observatory (DCO) Data Portal, Scientific Collections, https://info.deepcarbon.net/vivo/scientific-collections; Keyword Search: sample repository, https://info.deepcarbon.net/vivo/scientific-collections?source=%7B%22query%22%3A%7B%22query_string%22%3A%7B%22query%22%3A%22sample%20repository%20%22%2C%22default_operator%22%3A%22OR%22%7D%7D%2C%22sort%22%3A%5B%7B%22_score%22%3A%7B%22order%22%3A%22asc%22%7D%7D%5D%2C%22from%22%3A0%2C%22size%22%3A200%7D: Accessed September 29, 2021 Fisher, C. K., and Krupa, M. P., 1977, Well-sample and core repositories of the United States and Canada: U.S. Geological Survey Open-File Report 77-567, 73 p. https://doi.org/10.3133/ofr77567 Fogwill, W.D., 1985, Drill Core Collection and Storage Systems in Canada, Manitoba Energy & Mines. https://www.ngsc-cptgs.com/files/PGJSpecialReport_1985_V03b.pdf Goff, S., and Heiken, G., eds., 1982, Workshop on core and sample curation for the National Continental Scientific Drilling Program: Los Alamos National Laboratory, May 5-6, 1981, LA-9308-C, 31 p. https://www.osti.gov/servlets/purl/5235532 Lonsdale, J. T., 1953, On the preservation of well samples and cores: Oklahoma City Geological Society Shale Shaker, v. 3, no. 7, p. 4. National Geological and Geophysical Data Preservation Program. https://www.usgs.gov/core-science-systems/national-geological-and-geophysical-data-preservation-program National Research Council. 2002. Geoscience Data and Collections: National Resources in Peril. Washington, DC: The National Academies Press, 107 p. https://doi.org/10.17226/10348 Pow, J. R., 1969, Core and sample storage in western Canada: Bulletin of Canadian Petroleum Geology, v. 17, no. 4, p. 362-369. DOI: 10.35767/gscpgbull.17.4.362 Ramdeen, S., 2015. Preservation challenges for geological data at state geological surveys, GeoResJ 6 (2015) 213-220, https://doi.org/10.1016/j.grj.2015.04.002 Schmoker, J. W., Michalski, T. C., and Worl, P. B., 1984, Nonprofit sample and core repositories of the United States: U.S. Geological Survey Circular 942. https://doi.org/10.3133/cir942 Schmoker, J. W., Michalski, T. C., and Worl, P. B., 1984, Addresses, telephone numbers, and brief descriptions of publicly available, nonprofit sample and core repositories of the United States: U.S. Geological Survey Open-File Report 84-333, 13 p. (Superseded by USGS Circular 942) https://doi.org/10.3133/ofr84333 The Energy Policy Act of 2005 (Public Law 109-58, Sec. 351) The National Digital Catalog (NDC). https://www.usgs.gov/core-science-systems/national-geological-and-geophysical-data-preservation-program/national-digital U.S. Bureau of Mines, 1978, CORES Operations Manual: Bureau of Mines Core Repository System: U.S. Bureau of Mines Information Circular IC 8784, 118 p. https://digital.library.unt.edu/ark:/67531/metadc170848/

The dataset is a subset of Minerals and Petroleum's BORES dataset and contains geological data from Minerals and Petroleum's boreholes RDBMS. The dataset contains any borehole records which have lithological, stratigraphic or assay data as well as any borehole records where the purpose was recorded as being minerals-related.

URL: https://geoscience.data.qld.gov.au/dataset/cr042184

THE APPLICATION OF GEOLOGY IN LAND RESOURCE ASSESSMENT AND LAND MANAGEMENT

The geology of Macquarie Island was mapped December 1994 - January 1996 in a joint project involving Mineral Resources Tasmania, the Australian Antarctic Foundation and the Australian Antarctic Division.

This dataset is a point coverage of the Pocahontas No. 3 coal with attributes on data location, minable thickness, and elevation, in feet. The file is also found as an ASCII Appendix of Chapter H, Disc 1 found elsewhere in Professional Paper 1625-C.

Abstract

This dataset and its metadata statement were supplied to the Bioregional Assessment Programme by a third party and are presented here as originally supplied.

The Surface Geology of Australia 1:1M scale dataset (2012 edition) is a seamless national coverage of outcrop and surficial geology, compiled for use at or around 1:1 million scale. The data maps outcropping bedrock geology and unconsolidated or poorly consolidated regolith material covering bedrock. Geological units are represented as polygon and line geometries, and are attributed with information regarding stratigraphic nomenclature and hierarchy, age, lithology, and primary data source. The dataset also contains geological contacts, structural features such as faults and shears, and miscellaneous supporting lines like the boundaries of water and ice bodies.

Purpose

The data is used to indicate the extent of outcropping bedrock geology and unconsolidated or poorly consolidated regolith material covering bedrock.

Dataset History

The 2012 dataset has been updated from the previous 2010 data by updating geological unit data to 2012 information in the Australian Stratigraphic Units Database (http://www.ga.gov.au/products-services/data-applications/reference-databases/stratigraphic-units.html), incorporating new published mapping in the Northern Territory and Queensland, and correcting errors or inconsistent data identified in the previous edition, particularly in the Phanerozoic geology of Western Australia. The attribute structure of the dataset has also been revised to be more compatible with the GeoSciML data standard, published by the IUGS Commission for Geoscience Information. Original Geosciences Australia dataset name; GeologicalUnits_1m_Polys_PED.shp.

Dataset Citation

SA Department of Environment, Water and Natural Resources (2015) Geology Polygon Dataset - PED. Bioregional Assessment Source Dataset. Viewed 12 October 2016, http://data.bioregionalassessments.gov.au/dataset/9f52f19e-25f9-4006-9af9-951d336bb5a0.

This dataset is a point coverage of attributes on data location, thickness of the Fire Clay coal zone, and its elevation, in feet. This resource model for the Fire Clay coal zone must be considered provisional, because the correlation of the zone continues to be evaluated in West Virginia. The file is also found as an ASCII Appendix of Chapter F, Disc 1 found elsewhere in Professional Paper 1625-C.

The data set for this coverage includes arcs, polygons, and polygon labels that outline and describe the general geologic age and type of bedrock of the Arabian Peninsula and selected adjacent areas. It also includes shoreline and inland water bodies. The Arabian Peninsula is part of Region 2 for the USGS World Energy Assessment.

This dataset is a point coverage of attributes on data location, thickness of the Pond Creek coal bed main bench, and its elevation, in feet. The file is also found as an ASCII Appendix of Chapter G, Disc 1 found elsewhere in Professional Paper 1625-C.

See full Data Guide here. Quaternary Geology Feature Set is 1:24,000-scale data that illustrates the geologic features formed in Connecticut during the Quaternary Period, which spans from 2.588 ± 0.005 million years ago to the present and includes the Pleistocene (glacial) and Holocene (postglacial) Epochs. The Quaternary Period has been a time of development of many details of the Connecticut landscape and all surficial deposits. At least twice in the last Pleistocene, continental ice sheets swept across Connecticut from the north. Their effects are of pervasive importance to present-day occupants of the land.

The Quaternary Geology information illustrates the geologic history and the distribution of depositional environments during the emplacement of unconsolidated glacial and postglacial surficial deposits and the landforms resulting from those events in Connecticut. These deposits range from a few feet to several hundred feet in thickness, overlie the bedrock surface and underlie the organic soil layer of Connecticut. Quaternary Geology is mapped without regard for any organic soil layer that may overly the deposit.

For additional documentation including a description of the unconsolidated glacial and postglacial surficial deposits shown on the map, refer to the CT ECO Complete Resource Guide for Quaternary Geology.

The Connecticut Quaternary Geology information was initially compiled at 1:24,000 scale (1 inch = 2,000 feet) then recompiled for a statewide 1:125,000-scale map, Quaternary Geology Map of Connecticut and Long Island Sound Basin (PDF, 56 Mb) Stone, J.R., Schafer, J.P., London, E.H. and Thompson, W.B., 1992, U.S. Geological Survey Special Map, 2 sheets, scale 1:125,000, and pamphlet, 71 p. A companion map, the Surficial Materials Map of Connecticut (PDF, 26 Mb) Stone, J.R., Schafer, J.P., London, E.H., DiGiacomo-Cohen, M.L., Lewis, R.L., and Thompson, W.B., 2005, U.S. Geological Survey Scientific Investigation Map 2784, 2 sheets, scale 1:125,000, emphasizes the surface and subsurface texture (grain-size distribution) of these materials. The quaternary geology and surficial material features portrayed on these two maps are very closely related; each contributes to the interpretation of the other.

National-scale geologic, geophysical, and mineral resource raster and vector data covering the United States, Canada, and Australia are provided in this data release. The data were compiled as part of the tri-national Critical Minerals Mapping Initiative (CMMI). The CMMI, established in 2019, is an international science collaboration between the U.S. Geological Survey (USGS), Geoscience Australia (GA), and the Geological Survey of Canada (GSC). One aspect of the CMMI is to use national- to global-scale earth science data to map where critical mineral prospectivity may exist using advanced machine learning approaches (Kelley, 2020). The geoscience information presented in this report include the training and evidential layers that cover all three countries and underpin the resultant prospectivity models for basin-hosted Pb-Zn mineralization described in Lawley and others (2021). It is expected that these data layers will be useful to many regional- to continental-scale studies related to a wide range of earth science research. Therefore, the data layers are organized using widely accepted GIS formats in the same map projection to increase efficiency and effectiveness of future studies. All datasets have a common geographic projection in decimal degrees using a WGS84 datum. Data for the various training and evidential layers were either derived for this study or were extracted from previous national to global-scale compilations. Data from outside work are provided here as a courtesy for completeness of the model and should be cited as the original source. Original references are provided on each child page. Where possible, data for the United States were merged to data for Canada to provide composite data that allow for continuity and seamless analyses of the earth science data across the two countries. Earth science data provided in this report include training data for the models. Training data include a mineral resource database of Pb-Zn deposits and occurrences related to either carbonate-hosted (Mississippi Valley type-MVT) or clastic-dominated (aka sedex) Pb-Zn mineralization. Evidential layers that were used as input to the models include GeoTIFF grid files consisting of ground, airborne, and satellite geophysical data (magnetic, gravity, tomography, seismic) and several related derivative products. Geologic layers incorporated into the models include shapefiles of modified lithology and faults for the United States, Canada and Australia. A global database of ancient and modern passive margins is provided here as well as a link to a database mapping the global distribution of black shale units from a previous USGS study. GeoTIFF grids of the final prospectivity models for MVT and for clastic-dominated Pb-Zn mineralization across the US, Canada, and Australia from Lawley and others (2021) are also included. Each child page describes the particular data layer and related derivative products if applicable. Kelley, K.D., 2020, International geoscience collaboration to support critical mineral discovery: U.S. Geological Survey Fact Sheet 2020–3035, 2 p., https://doi.org/10.3133/fs20203035. Lawley, C.J.M., McCafferty, A.E., Graham, G.E., Huston, D.L., Kelley, K.D., Czarnota, K., Paradis, S., Peter, J.M., Hayward, N., Barlow, M., Emsbo, P., Coyan, J., San Juan, C.A., and Gadd, M.G., 2022, Data-driven prospectivity modelling of sediment-hosted Zn-Pb mineral systems and their critical raw materials: Ore Geology Reviews, v. 141, no. 104635, https://doi.org/10.1016/j.oregeorev.2021.104635.

GEOLOGY AND RESOURCES OF THE TAR SAND TRIANGLE, SOUTHEASTERN UTAH

We surveyed students enrolled in College Algebra at a large, urban, Hispanic-serving, R-1 public university in the southwestern United States. The data span five semesters, from Fall 2018 through Spring 2020. The survey was composed of demographic questions as well as questions using the Likert scale, in which students rated how much they agreed or disagreed with a particular statement regarding descriptions of their “ideal career.” Students were also asked to rate statements about careers in different science fields and engineering. Demographic questions were included at the end of the survey in order to mitigate stereotype threat.

Our study tests (i) whether altruistic factors, personal achievement, or work environment are most important to college students (early in their undergraduate program) for their future careers, (ii) whether the ratings of these ideals differ between male/female, URM/non-URM, and first-generation/non-first-generation college students, and (iii) how student perceptions of the geosciences are in regard to those ideals compared to other STEM fields.

This ArcView shapefile contains a polygon representation of generalized geology in the Green River Basin. This geology shapefile was produced as part of the National Coal Resource Assessment of the Northern Rocky Mountain and Great Plains Fort Union Coal Resources Assessment Area. This geology can be shown in relation to other relevant themes in the green River Basin.

This ArcView shapefile contains a polygon representation of the generalized geology of the Powder River Basin (Montana and Wyoming). This theme was created specifically for the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.

Estimated Alaska coal resources are largely in Cretaceous and Tertiary rocks distributed in three major provinces. Northern Alaska-Slope, Central Alaska-Nenana, and Southern Alaska-Cook Inlet. Cretaceous resources, predominantly bituminous coal and lignite, are in the Northern Alaska-Slope coal province. Most of the Tertiary resources, mainly lignite to subbituminous coal with minor amounts of bituminous and semianthracite coals, are in the other two provinces. The combined measured, indicated, inferred, and hypothetical coal resources in the three areas are estimated to be 5,526 billion short tons (5,012 billion metric tons), which constitutes about 87 percent of Alaska's coal and surpasses the total coal resources of the conterminous United States by 40 percent. Coal mining has been intermittent in the Central Alaskan-Nenana and Southern Alaska-Cook Inlet coal provinces, with only a small fraction of the identified coal resource having been produced from some dozen underground a ...

URL: https://geoscience.data.qld.gov.au/dataset/ds000101

The Queensland Resources Industry Development Plan (QRIDP) was created by government, industry and communities. It sets out a pathway for a resources industry that will continue to create jobs and prosperity for generations to come—responsibly and sustainably. The QRIDP was announced in April 2021, among the 6 focus areas there was a $20 Million investment in precompetitive geoscience programs and circular economy research for the mining industry as well as $22.6 Million invested in Queensland's Collaborative Exploration Initiative.

Action #2- Collaborative Exploration Initiative.

The Collaborative Exploration Initiative (CEI) aims to encourage the discovery and development of Queensland's critical mineral deposits to help meet the growing demands of the world's technology and renewable energy sectors. Funding is currently provided under the Queensland Resources Industry Development Plan (QRIDP), with $17.5 million available until June 2027 to support Queensland's exploration companies to discover the future mines to produce the minerals and metals that the world needs.

• CEI Round 7 - Round 7, which ran from April to December 2023, supported 25 projects – with all data collected through these projects now freely available to access here
• CEI Round 8 - Round 8 is in progress, with projects due to be completed by December 2024. Final reports will be made available from 16th June 2025.
• CEI Round 9 - Opening soon, successful applicants to be awarded 1 April 2025

Action #3 - Geophysics for Discovery

The Queensland Government has invested $10 million in geophysical data such as aeromagnetics, gravity, and magnetotellurics, which are essential for the discovery of mineral systems underground (such as the majority of those in outback Queensland), to help build a picture for developers and investors.

• Regional Gravity - A regional airborne gravity gradiometry (AGG) survey, with line spacing at 1km or better, was discussed as a high priority for mineral explorers based on feedback collected by the GSQ. The Etheridge AGG survey was flown in April-May 2024 and covered over 32,000 sq km in the Georgetown region.

• Regional Magnetics - A regional airborne magnetic and radiometric survey was conducted in the Georgetown region survey to continue to grow the coverage of high resolution magnetics and radiometric data available across prospective regions in Queensland. The Einasleigh airborne geophysics survey has been completed with data due to be released in mid 2024.

• Regional AEM - A regional Airborne Electromagnetic (AEM) survey with a line spacing of 2km will improve the data density within the 20km spaced AusAEM and provide explorers with a much higher resolution dataset to enable area selection and targeting under cover. This survey will be conducted in the Georgetown region in mid 2024 with data to be released by end of 2024.

• AusAEM - GSQ contribution to Geoscience Australia's AusAEM airborne electromagnetic survey in Queensland. AusAEM is the world's largest AEM survey ever undertaken, and extends across the Australian continent. AEM allows mapping of the subsurface electrical conductivity of rocks, sediments and waters, and can aid in the identification of electrically conductive minerals such as sulfides. The 2024 AusAEM program will be flown in mid 2024 and will extend current AusAEM coverage to the east, data will be released late 2024

• Petrophysics Data - This project involves the collection and processing of petrophysics with CSIRO's Mobile Petrophysics Lab along key reference core selected by the GSQ Minerals systems team and the integration with other analytical data. Data and reports will be released on the open data portal

• AusLAMP - GSQ contribution to Geoscience Australia's AusLAMP magnetotelluric survey in Queensland. AusLAMP is a long-period MT survey that images the electrical conductivity structure of the Autralian continental lithosphere in three dimensions and aims to identify and characterise major geological structures in the crust. These structures may be related to zones of prospective mineralisation in the upper crust. Data for all AusLAMP sites collected in Queensland can be found on the Geoscience Australia website.

• Gravity AFGN Update - Increased demand for gravity data acquisition from Industry requires that these surveys can be tied into the national gravity compilation. Revisiting AFGN sites to ensure they are still functional and establishing new sites in areas of demand will ensure gravity readings collected are accurate and accessible.

• Deep Seismic - A deep seismic survey proposed from Lawn Hill across to Croydon will improve the regional understanding of major geological domains and structures between the Mount Isa and Georgetown terrains. The new seismic is proposed to commence in 2025-2026 and will be incorporated into the current deep seismic network to provide a 3-dimensional understanding of the geology across the state.

Action #4 – New Economy Mineral Systems and Geoscience

The Queensland Government invested $5 million in geoscience research on existing copper, cobalt, rare earth, indium and other new economy mineral deposits to better understand their occurrence and distribution. Projects under this banner provide the resources sector with the tools they need to overcome challenges and develop new techniques to aid exploration, discovery, and extraction of minerals. It is increasingly essential as the frontier for discovery moves into deeper and more difficult terrains, while the demand for new economy minerals increases exponentially.

• Geochem Data Update - The updated Queensland Geochemistry Database has an additional 600,000 new data that covers all the 5 Queensland Geochemical data blocks. The new data release is in GDA2020 datum, and are available from Whole of Queensland Geochemistry databases - Whole of Queensland Geochemistry databases - Geochemistry - GSQ Open Data Portal

• Georgetown Hydrogeochem - The Hydrogeochemistry study of eastern Mount Isa has identified seventeen areas of interest for further mineral exploration work. The same technique is applied to the undercover areas surrounding the Georgetown block and fill areas of data gaps in the eastern Mount Isa. All sampling and analytical work have been completed and the various collaborators (GSQ, CSIRO, RUTGERS and QUT) are at the stage of data analysis of the variety of chemistry types, and will integrate them into a final report expected for release in December 2024.

• Characterisation of Queensland mineral deposits - An integrated work program aiming to build up an extensive reference collection of representative drill hole and surface samples and associated geoscience data, to comprehensively characterise geochemical, mineralogical and petrophysical signatures of mineralisation, alteration and distal footprints of key deposits of different deposit types including the north east and north west mineral provinces;

  • GSQ Reference Collection Projects

• Deposit Atlas Phase 3 - Deposit Atlases are a valuable tool for explorers, providing insights to identify the characteristic features and surrounding indicators of major mineral deposits. The third phase of this initiative will examine 28 deposits spanning the Northeast and Northwest Mineral Provinces. Curated by the WH Bryan Mining Geology Research Centre (BRC), each atlas will encompass a detailed report and three-dimensional datasets integrating publicly accessible data.

• Digital Earth - The Digital Earth Project aims to develop a scalable, seamless twin of minerals geoscience data held in the GSQ open data portal. This innovation will visualise, in 3D, regional and local-scale geology, geochemistry, and geophysics, and critically all the Mineral Deposit Atlas data for Queensland. A production-ready version of the app will be assessed for public release from September 2024.

• Isotopes Undercover - Heavier copper isotope signatures in groundwater are indicative of oxidation of copper sulfides during weathering. The 65Cu to 63Cu ratio is used as a potential exploration tool to telescope into potential undercover copper mineralization. A spatial analysis of 42 water

This dataset is a polygon coverage of counties limited to the extent of the Pond Creek coal bed resource areas and attributed with statistics on the thickness of the Pond Creek coal zone, its elevation, and overburden thickness, in feet. The file has been generalized from detailed geologic coverages found elsewhere in Professional Paper 1625-C.